Johnson Controls RRS Economizer Controller Quick start guide

RRS Economizer Controller Quick Start Guide 1

RRS Economizer Controller

Quick Start Guide

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FIGURE 1 - RRS Economizer Controller

Field-installed economizer accessories with the RRS Econo-

mizer Controller utilize the P12/S12 connector for inter-con-

necting wiring to the 3 through 6 ton units equipped with

Simplicity Lite in the same manner as Honeywell W7212 and

Jade controllers in economizer accessories. Through the

P12/S12 connector, the unit-to-RRS Economizer wiring con-

nections are as follows:

• TB1 to RRS Economizer Controller C pin - Pro-

vides cabinet ground-referenced 24 volts AC com-

mon to power the RRS Economizer Controller,

economizer inputs and outputs

• Simplicity Lite G pin to RRS Economizer Con-

troller R pin - Provides 24 volts AC hot to power

the RRS Economizer Controller, economizer

inputs and outputs when Simplicity Lite operates

the indoor blower

• Simplicity Lite OCC pin to RRS Economizer

Controller OCC pin - 24 volts AC originating from

jumper or thermostat input to the Simplicity Lite

OCC screw terminal, through the Simplicity Lite

OCC output pin to the RRS Economizer Controller

• Simplicity Lite Y1 pin to RRS Economizer Con-

troller Y1 pin - 24 volts AC originating from ther-

mostat input to the Simplicity Lite Y1 screw

terminal, through the Simplicity Lite Y1 output pin

to the RRS Economizer Controller Y1 pin input

indicates there is a first stage cooling request

• RRS Economizer Controller Y1O pin to Sim-

plicity Lite ECON pin - 24 volts AC from the RRS

Economizer Controller Y1O pin output to the Sim-

plicity Lite ECON pin input allows initiation of com-

pressor operation when outdoor conditions are

not suitable for free cooling

FIGURE 2 -

Simplified Diagram Of RRS Economizer

Control To 3 Through 6 Ton Unit Wiring

Connections

OCC

ECON

Y2OY1O

Y2Y1

OCCW1

DFBDMP

í +

24 VAC Common for Economizer

Controller Power/Inputs/Outputs

Simplicity Lite

TB1

On with Simplicity Lite blower operation – 24 VAC

Hot for Economizer Controller Power/Inputs/Outputs

From 24 VAC thermostat input to Simplicity

Lite – 1

Stage Cooling Request

From 24 VAC jumper/thermostat input to

Simplicity Lite – Occupancy Indication

24 VAC compressor request to Simplicity Lite with

Stage Cooling Request & Free Clg Avail = No

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2 RRS Economizer Controller Quick Start Guide

Other than inter-connection to the base unit, the 14-pin con-

nector at the upper edge of the RRS Economizer Controller

has connections for the economizer damper actuator

included with field installed economizer accessories. Power

for the actuator is provided through the - (24 volts AC com-

mon/DC-) and + (24 volts AC hot) pins. The +2 to +10 volts

DC, as configured for 3 through 6 ton economizer accesso-

ries, from the DMP output pin positions the actuator. The +2

to +10 volts DC, as configured for 3 through 6 ton economizer

accessories, from the actuator position feedback is received

at the DFB input pin. The DFB input is utilized for California

Title 24-type actuator position alarming when the RRS Econ-

omizer Controller parameter [Fault Detect En] is set to

Enable.

FIGURE 3 -

Simplified Diagram Of RRS Economizer Control Temperature Sensor And Humidity Sensor

Wiring Connections

Field-installed economizer accessories with the RRS Econo-

mizer Controller include an outdoor air temperature (OAT)

sensor and outdoor air humidity (OAH) sensor, combined in

single assembly, as well as a supply air temperature (SAT)

sensor. Optional dual enthalpy kits for field installed econo-

mizer accessories with the RRS Economizer Controller add a

return air temperature (RAT) sensor and return air humidity

(RAH) sensor combined in single assembly.

The supply air temperature sensor, the outdoor air tempera-

ture portion of the OAT/OAH sensor, and the return air tem-

perature portion of the optional RAT/RAH sensor connect to

terminals near the lower-left corner of the RRS Economizer

Controller. These temperature sensors are Type III, 10,000

@ 77°F, negative temperature coefficient thermistors.

Connections for the outdoor air humidity (OAH) portion of the

OAT/OAH sensor and the return air humidity portion of the

optional RAT/RAH sensor are located to the right of the tem-

perature sensor terminals on the lower edge of the RRS

Economizer Controller. The RRS Economizer Controller pro-

vides power for these sensors through the corresponding C

(24 volts AC common/DC-) and R (24 volts AC hot) terminals.

The 0 to 10 volts DC over a 0 to 100% RH span sensors pro-

vide volts DC+ input to the corresponding OAH or RAH termi-

nal of the RRS Economizer Controller. The RRS Economizer

Controller calculates enthalpy for free cooling changeover

from temperature and humidity inputs.

The 6-pin connector at the upper edge of the RRS Econo-

mizer Controller has connections for other optional inputs.

The RRS Economizer Controller provides power for the

indoor air quality (IAQ) sensor through the corresponding C

(24 volts AC common/DC-) and R (24 volts AC hot) pins. The

0 to 10 volts DC over a 0 to 2000 ppm CO2 span sensor pro-

vides volts DC+ input to the IAQ pin of the RRS Economizer

Controller. The IAQ input is utilized when single-input

demand ventilation function is desired. 24 volts AC hot to the

SD input pin causes shutdown of all economizer functions.

The 6-pin connector at the upper edge of the RRS Econo-

mizer Controller also has connection for integration of non-

modulating power exhaust or exhaust recovery ventilator

accessories. Primarily determined by the RRS Economizer

Controller parameter [Exhaust Setup] selection, the 24 volts

AC hot from the ERV-EXH output pin provides switching for

control of non-modulating power exhaust/exhaust recovery

ventilator accessories.

RAH

OAT

SAT

RAT

OAH

123

567

Outdoor Air

Temperature & Humidity Sensor

Supply Air

Temperature Sensor

123

567

Optional Return Air

Temperature & Humidity Sensor

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RRS Economizer Controller Quick Start Guide 3

Intended to be used with field-built remote alarm indication, a

dry contact between the ALM and ALMCOM terminals at the

lower edge of the RRS Economizer Controller closes when

Alarms are active. The contact is rated at 12 amps for circuits

of 125 volts AC or less.

The USB port at the upper edge of the RRS Economizer

Controller is for connection of a flash drive (or “thumb drive”)

used with several functions in the “Update” section of the

parameter menu.

The LEDs at the center-left of the RRS Economizer Controller

indicate as follows:

• POWER (green) - Is lit whenever 24 volts AC power is

present to the RRS Economizer Controller C and R pins.

• FAULT (red) - Is lit, then flashes during the boot-up

sequence of the RRS Economizer Controller. Will not be

lit when there are no Alarms active. Will double-flash/

pause continuously when Alarms are active.

• SA BUS (green) - Will not be lit (has no function in the

BASIC model of the RRS Economizer Controller used

with field-installed economizer accessories for 3 through

6 ton units).

Technicians access the control parameters of the RRS Econ-

omizer Controller through the four buttons and display in the

center of the controller.

RRS ECONOMIZER CONTROLLER BOOT-UP

SEQUENCE

The RRS Economizer Controller boot-up sequence begins

when unit indoor blower operation is initiated; there is output

from the Simplicity Lite G pin so 24 volts AC power is present

to the RRS Economizer Controller C and R pins. A boot-up

sequence will also begin at the completion of the firmware

update process and restore process.

NOTE: With RRS Economizer Controller usage, the Simplic-

ity Lite [Fan On Delay: Cool] parameter is not effec-

tive and must remain at the default setting of 0

seconds. Simplicity Lite operation of the compressor

cannot begin until the RRS Economizer Controller

boot-up sequence is completed and the [Cmp Min

Off Time] timer expires (approximately 1 minute, 16

seconds after power is applied to the RRS Econo-

mizer Controller). In situations where the indoor fan

cycles with cooling operation and the unit is pow-

ered-up; operation of the compressor cannot begin

until the Simplicity Lite compressor ASCD expires,

the RRS Economizer Controller boot-up sequence is

completed and the [Cmp Min Off Time] timer expires

(a total minimum of approximately 6 minutes, 16 sec-

onds after power is applied to the unit). If Y1 thermo-

stat input is present, Simplicity Lite will display flash

code 11 during the RRS Economizer Controller boot-

up sequence and the [Cmp Min Off Time] timer

period.

RRS ECONOMIZER CONTROLLER PARAMETER

MENU NAVIGATION

Level 0 of the parameter menu, where either a blank screen

is shown or active Alarm(s) are shown in 20-second intervals,

is displayed following:

• The boot-up sequence

• 45 minutes of menu navigation inactivity

• Multiple presses of the esc (cancel) button

FIGURE 4 -

Main Menu

From Level 0 of the parameter menu, navigation to Level 1 of

the menu is done with a press of the  (scroll up)  (scroll

down) or  (enter) button.

Presses of the  (scroll up) and  (scroll down) buttons

move the > cursor and scroll through the selections in the

section of the parameter menu at the current navigation level.

(Level 1 shown in the illustration above)

Each press of the (enter) button navigates to the next

(higher numbered in the “RRS Economizer Controller Menu

Guide”) navigation level.

In the example illustrated above: With the > cursor at the nav-

igation Level 1 Details selection, a press of the (enter) but-

ton navigates to the Details section, navigation Level 2 of the

parameter menu.

Again, presses of the  (scroll up) and  (scroll down) but-

tons move the > cursor and scroll through the selections in

the section of the parameter menu at the current navigation

level.

esc

Alarm description

>Status

Alarms

Summary

Commission

Controller

Update

>Details

Self Test

View Results

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4 RRS Economizer Controller Quick Start Guide

FIGURE 5 - Example Of Level 3 Options Under The

Setpoints Selection

Again, each press of the (enter) button navigates to the

next navigation level.

In the example illustrated above: With the > cursor at the nav-

igation Level 2 Set-points selection, a press of the (enter)

button navigates to the Details section, navigation Level 3 of

the parameter menu.

Once again, presses of the  (scroll up) and  (scroll down)

buttons move the > cursor and scroll through the selections in

the section of the display parameter menu at the current nav-

igation level.

FIGURE 6 -

Example of specific parameters under

the Damper Min Pos selection

2-line scrolling, where the individual parameter name is listed

on the top line of the display and the parameter setting/value

is listed on the bottom line of the display, is the greatest num-

bered navigation Level that can be reached in each menu

section.

FIGURE 7 -

Example Summary

esc

Unit

>Setpoints

Supply Temp Stpt

Supply Temp

>Damper Min Pos

Damper Command

High OA Shutoff

Outdoor Temp

esc

Supply Temp

>Damper Min Pos

Supply Temp Stpt

55.0 F

Supply Temp

71.8 F

Damper Min Pos

25%

Damper Command

25.0%

High OA Shutoff

75.0 F

Outdoor Temp

71.8 F

esc

Unit

>Setpoints

Zone

Control

Service

Alarm description

Update

>Details

Unit

>Setpoints

Supply Temp

>Damper Min Pos

Damper Min Pos

25%

Level 1

Main Menu

Level 2

Level 3

Level 4

(Parameter

Adjustment)

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RRS Economizer Controller Quick Start Guide 5

RRS ECONOMIZER CONTROLLER PARAMETER

MENU FUNCTIONS

There are several “conditional” parameters within the menu.

Parameters for temperature, humidity and CO

inputs are

only shown in the menu once sensor presence has been

detected. Parameters associated with a function are only

shown in the menu when that function is enabled.

The values of status parameters, binary inputs and binary

outputs update in the menu approximately 5 seconds after

the point of value change. The buffered values in use for con-

trol sequences, rather than the “raw” inputs, are shown in the

menu for analog inputs. Since changes are at a relatively

slow rate, the values for analog outputs shown in the menu

are nearly “real time”.

Set-point parameter settings within the menu, like the

[Damper Min Pos] example below, are typically shown as a

numeric value with appropriate limits on the available range.

Configuration parameter settings within the menu are typi-

cally shown as “Yes” / “No”, “Enable” / “Disable”, etc. or as a

list of available selections. The range of available selections

are shown in red text to the right of set-point and configura-

tion parameters listed in the “RRS Economizer Controller

Menu Guide”.

FIGURE 8 -

Selecting A Parameter To Change

From a set-point or configuration parameter, setting change

is initiated by pressing the (enter) button. The display back-

light will then flash on and off to indicate setting change activ-

ity is in progress.

FIGURE 9 -

Changing A Parameter Value Using The

Up And Down Buttons

With setting change activity in progress, presses of the 

(scroll up) button increase the numeric setting or scroll

through the list of available settings, presses of the (scroll

down) button decrease the numeric setting or scroll through

the list of available settings.

FIGURE 10 -

Completing The Parameter Value

Change

A press of the (enter) button stores the new setting in the

controller for immediate use and the display back-light will

then stop flashing to indicate setting change activity has

ended.

A press of the esc (cancel) button retains the previous setting

in the controller and the display back-light will then stop flash-

ing to indicate setting change activity has ended.

NOTE: When making changes to configuration parameter

settings that influence the conditional parameters

shown in the menu section, allow the menu to

refresh by using the esc (cancel) button to navigate

away one or two levels then navigate back to the

menu section.

FIGURE 11 -

Scrolling Of Long Text

Longer text of some parameter values can exceed the side-

scrolling capability of the display. Other than set-point and

configuration parameters, the full text of longer-named

parameter values is viewed and text side-scrolling is slowed

when the (enter) button is held. (The example shown

above is the result of a “Variable Frequency Fan” setting

incorrectly selected for the [Exhaust Setup] configuration on

the RRS Economizer Controller)

FUNCTIONS IN THE “UPDATE” SECTION OF THE

RRS ECONOMIZER CONTROLLER PARAMETER

Several functions in the “Update” section of the parameter

menu use a flash drive (or “thumb drive”) connected to the

controller USB port. If the sequence that follows does not

occur when the flash drive is connected to the USB port, it is

esc

Damper Min Pos

25%

Damper Min Pos

25%

esc

Damper Min Pos

28%

Damper Min Pos

23%

esc

Damper Min Pos

23%

Damper Min Pos

23%

esc

Exhaust Status

Off-Unreliable Building Static Pressure

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6 RRS Economizer Controller Quick Start Guide

likely that the flash drive is partitioned or otherwise not com-

patible with controller flash drive functions.

FIGURE 12 - Firmware Update

When both a compatible flash drive is connected to the USB

port and there is navigation within/re-entering the “Update”

section of the parameter menu, “USB: Wait” will briefly be

shown on the top line of the display.

Then, the top line of the display will show “USB:OK”; the

number following “Scan” on the bottom line of the display

indicates the number of files and folders in the top level of the

flash drive storage.

Once the scan is complete, leave the flash drive connected to

the USB port so it will be available for other functions. A press

of the  (scroll up) or (scroll down) button will then resume

navigation in the Update section of the menu.

BACKUP FUNCTION

Without a flash drive connected to the USB port, the steps

listed below for the Backup function only update the “Backup-

Config” restoration file held in controller on-board memory.

FIGURE 13 - File Backup Function

With a compatible flash drive connected to the USB port, the

(enter) button is pressed when at (Level 1) “Update” >

(Level 2) “Backup” location of the display menu.

“Backing” on the upper line and “UP” on the lower line of the

display may be briefly observed immediately after the

(enter) button is pressed.

While the Backup is in progress, “Backup:Wait” alternating

with a countdown timer will be shown on the upper line and

an increasing percentage following “Backup” will be shown

on the lower line of the display.

In approximately 10 seconds, “Backup:OK” on the upper line

and “Backup 100%” will be shown on the lower line of the dis-

play when the Backup function is complete. The flash drive

may be then be removed from the USB port if not needed for

other functions. A press of the esc (cancel),  (scroll up) or

(scroll down) button will then resume menu navigation.

FIGURE 14 -

Indication Of Incompatible Flash Drive

If an incompatible or partitioned flash drive is used,

“Backup:FAIL” will be shown on the upper line and an error

code following “Backup” will be shown on the lower line of the

display instead of the Backup function completion indicators.

esc

USB: Wait

USB: OK

Scan 12

>View Version

Load Firmware

esc

>Backup

Restore

Backing

Backup: 01mn

Backup 0%

Backup: WAIT

Backup 0%

Backup: OK

Backup 100%

esc

Backup: FAIL

Backup 12046

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RRS Economizer Controller Quick Start Guide 7

A press of the esc (cancel),  (scroll up) or (scroll down)

button will then resume menu navigation.

FIGURE 15 -

Windows PC view of Firmware Upgrade,

Restoration, Self Test Report and Trend

Files on a Flash Drive

With each completed Backup, a comma separated value

(.csv) restoration file is created in the top level of the flash

drive storage. The “BackupConfig” restoration file held in con-

troller on board memory is also updated. The restoration file

is a “snapshot” of menu parameter values and settings in the

controller at the moment the restoration file was created. The

restoration file size is typically less than 25 KB. Restoration

files may be moved, copied, e-mailed, etc. like other com-

puter files. The file name is drawn from the [Model Name]

and time in the controller at the moment the restoration file

was created.

FIGURE 16 -

Restoration File Name Structure

The time used in restoration file names describes the time

since controller boot-up. The time kept by the controller

restarts with each boot-up sequence and begins at 00:00:00

January 1st 1970 (1970-01-01T000000 as shown in the res-

toration file name).

The default 20-character [Model Name] data is loaded in con-

troller production. Changing the [Model Name] within the res-

toration file and then loading the change to the controller

through the Restore function can be utilized when unique

naming is desired.

FIGURE 17 -

Flash Files

Along with [Model Name], the data of restoration files can be

viewed and edited in spreadsheet programs such as Micro-

soft Excel or Open Office Calc. Editing offers the means to

create custom restoration files for use with the Restore func-

tion. When editing restoration files:

• Only the data in the Value column can be edited.

• The restoration file name structure must remain intact if

saving the edited restoration file with a different name.

Blank data in the Label column of the restoration file indicates

conditional parameters that were not in use at the time the

Backup function was performed. The restoration file parame-

ters having blank data are not carried forward when the

Restore function is performed; the existing settings of those

parameters are not affected in the controller being restored.

RESTORE FUNCTION

Without a compatible flash drive connected to the USB port,

the steps listed below for the Restore function can only use

the “BackupConfig” restoration file held in controller on-board

memory.

RRS Economizer Controller

Restoration File Name Structure

Model Name_1970-01-01T011609.csv

Hour

Minute

Second

Model Name parameter value

default: 20-characters of unknown structure

may be modified by: field selection (with Restore function)

Day

Month

Year

Time since controller boot-up

begins 1970-01-01T000000

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8 RRS Economizer Controller Quick Start Guide

FIGURE 18 - Restore Function

With a compatible flash drive connected to the USB port, the

(enter) button is pressed when at (Level 1) “Update” >

(Level 2) “Restore” location of the display menu.

Presses of the  (scroll up) and (scroll down) buttons

move the > cursor and scroll through the “BackupConfig” res-

toration file held in controller on-board memory and resto-

ration files in the top level of the flash drive storage

selections.

The (enter) button is then pressed with the > cursor aligned

to the desired restoration file name.

The selected restoration file name will then be shown on the

upper line and “Confirm” on the lower line of the display. The

Restore process begins when the (enter) button is pressed

to confirm restoration file selection.

While the Restore is in progress, a countdown timer alternat-

ing with “Restore:Wait” will be shown on the upper line and

an increasing progress indicator following “Restore” will be

shown on the lower line of the display.

In approximately 10 seconds, “Restore:OK” on the upper line

and “Reboot” with a countdown will be shown on the lower

line of the display. The controller will then reboot to complete

the Restore function when the “Reboot” countdown reaches

“0”. The flash drive may be then be removed from the USB

port if not needed for other functions.

VIEW VERSION

FIGURE 19 - View Firmware Version

When the (enter) button is pressed when at (Level 1)

“Update” > (Level 2) “View Version” location of the display

menu, the firmware revision of the controller will be shown on

the upper line and “Firmware OK” will be shown on the lower

line of the display. A press of the esc (cancel) (scroll up) or

(scroll down) button will then resume menu navigation.

FIGURE 20 -

Firmware Version Name Structure

A status message other than “Firmware OK” will be shown if

the controller firmware is missing or corrupt; this is typically

corrected by performing the Load Firmware function.

esc

Backup

>Restore

>BackupConfig

00025-2992-7RY08

BackupConfig

>00025-2992-7RY0

00025-2992-7RY08

Confirm

Restore: 01mn

Restore 0

Restore: WAIT

Restore 57

Restore: OK

Reboot 9

esc

Restore: FAIL

Restore 126

esc

>View Version

Load Firmware

1.0.0.0136

Firmware OK

Major Release Revision

RRS Economizer Controller

Firmware Version Name Structure

1.0.0.0136

Minor Release Revision

Incremental Revision

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RRS Economizer Controller Quick Start Guide 9

LOAD FIRMWARE

Firmware update of the controller is only necessary if

updated features are desired or to address specific issues

with earlier revisions of the firmware.

FIGURE 21 - Incompatible Flash Drive Or Firmware

File

A "No Package Present" message will be shown when the <-

-(enter) button is pressed at (Level 1) "Update" > (Level 2)

"Load Firmware" location when there is not a compatible

flash drive with RRS Economizer Controller firmware update

files connected to the USB port. A press of the esc (cancel)

(scroll up) or (scroll down) button will then resume menu

navigation.

FIGURE 22 -

Firmware Update File Name Structure

FIGURE 23 - Firmware Updating And Controller

Rebooting

With a flash drive having an RRS Economizer Controller firm-

ware update file on the top storage level connected to the

USB port, the (enter) button is pressed when at (Level 1)

“Update” > (Level 2) “Load Firmware” location of the display

menu.

Presses of the  (scroll up) and (scroll down) buttons

move the > cursor and scroll through the firmware update

files in the top level of the flash drive storage selections.

The (enter) button is then pressed with the > cursor aligned

to the desired firmware update file name.

esc

View Version

>Load Firmware

No Package Present

Major Release Revision

RRS Economizer Controller

Firmware Update File Name Structure

1.0.0.0136.ECOUSB.pkg

Minor Release Revision

Incremental Revision

esc

View Version

>Load Firmware

>1.0.0.0136.ECOU

1.0.0.0141.ECOUS

1.0.0.0136.ECOU

>1.0.0.0141.ECOUS

1.0.0.0141.ECOUS

Confirm

FW Update: 03mn

Updating 0%

Backup: WAIT

Backup 0%

FW Update: WAIT

Updating 0%

FW Update: OK

Reboot 9

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10 RRS Economizer Controller Quick Start Guide

The selected firmware update file name will then be shown

on the upper line and “Confirm” on the lower line of the dis-

play. The Firmware Update process begins when the 

(enter) button is pressed to confirm firmware update file

selection.

FIGURE 24 - Firmware update completed

The Firmware Update will not be completed if the selected

firmware update file is the same revision as the firmware

presently on the controller. In a few seconds “FW

Update:OK” will be shown on the upper line and “Info” fol-

lowed by a numeric code on the lower line of the display. A

press of the esc (cancel),  (scroll up) or (scroll down) but-

ton will then resume menu navigation.

The Firmware Update will continue if the selected firmware

update file is a different revision from the firmware presently

on the controller. Several countdown timers and progress

indicators will be shown on the display while the Firmware

Update is in progress. An automatic Backup to only the

“BackupConfig” restoration file held in controller on-board

memory is also performed with the Firmware Update.

Approximately 2 minutes after Firmware Update initiation,

“FW Update:OK” on the upper line and “Reboot” with a count-

down will be shown on the lower line of the display. The con-

troller will then reboot when the “Reboot” countdown reaches

“0”. The flash drive may be then be removed from the USB

port if not needed for other functions.

FIGURE 25 -

Screens Shown During Rebooting

Process

The boot-up sequence initiated by Firmware Update includes

an automatic Restore from the “BackupConfig” restoration file

held in controller on-board memory. Note that any parame-

ters added by the Firmware Update process will not be

affected by the automatic Restore feature and will have the

factory default settings. Analog input presence indicators are

also reset in the Firmware Update process.

The Firmware Update process is completed and controller

operation begins when the boot-up sequence ends. A press

of the esc (cancel),  (scroll up) or  (scroll down) button

will then begin menu navigation.

EXPORT TREND

Trend data is stored in non-volatile memory of the controller

is retained through the boot-up sequence. From boot-up, the

controller trend file data is continuously accumulated until the

trend sample/status change limits are reached. The sample

intervals and sampling limits for analog parameter values

allow 7 days of accumulated trend data. The newest data

overwrites the oldest data after the trend sample/status

change limits are reached.

Controller clock time is used for timestamping of trend data

and triggers the trend sample intervals for analog inputs.

Controller clock time begins at 1/1/1970 12:00:00 AM and

restarts with each boot-up sequence. Particularly in applica-

tions where the indoor fan cycles with heating and cooling

esc

FW Update: OK

Info 12032

esc

Johnson Controls

JCI

PMO: WAIT

FactRestore 0

119

Startup

PMO: OK

PartRestore 64

118

Operational

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RRS Economizer Controller Quick Start Guide 11

operation, the trend timestamp has limited practical use in 3

through 6 ton package units because the RRS Economizer

Controller is powered only when the indoor fan operates.

FIGURE 26 -

Indication That The USB Flash Drive Is

Not Connected Or Incompatible

A “USB Missing” message will be shown when the  (enter)

button is pressed when at (Level 1) “Update” > (Level 2)

“ExportTrend” location of the display menu without a compat-

ible flash drive connected to the USB port. A press of the esc

(cancel)  (scroll up) or (scroll down) button will then

resume menu navigation.

FIGURE 27 -

Exporting A Trend

With a compatible flash drive connected to the USB port, the

(enter) button is pressed when at (Level 1) “Update” >

(Level 2) “Export Trend” location of the display menu.

While the Export Trend is in progress, “Exporting” will be

shown on the upper line of the display.

In approximately 5 seconds; “Export” on the upper line and

“Done” will be shown on the lower line of the display when the

Export Trend function is complete. The flash drive may be

then be removed from the USB port if not needed for other

functions. A press of the esc (cancel),  (scroll up) or

(scroll down) button will then resume menu navigation.

FIGURE 28 -

Windows PC view of Firmware Upgrade,

Restoration, Self Test Report and Trend

Files on a Flash Drive

Table 1: RRS Economizer Controller Trending

Value Sample Interval Max Samples

SAT 5 minutes 2016

RAT 10 minutes 1008

OAT 15 minutes 672

OAH 15 minutes 672

RAH 10 minutes 1008

IAQ 15 minutes 672

Y1 status change 100

Y2 status change 100

W1 status change 100

Shutdown status change 100

OCC status change 100

Blackout status change 100

Brownout status change 100

Y1Out status change 100

Y2Out status change 100

AlarmOut status change 100

ERV status change 100

EconType status change 100

OAEnthalpy 15 minutes 672

RAEnthalpy 10 minutes 1008

FreeClgAvail status change 100

StartupDelayState status change 100

ExhaustControlState status change 100

ClgAvailState status change 100

ExcessiveSATState status change 100

TstatSequencerState status change 100

OADamper status change 800

DamperFeedback status change 800

DamperPropBand status change 200

DamperIntegralTime status change 200

esc

USB

Missing

esc

Restore

>Export Trend

Exporting

Export

Done

5292230-USG-B-0718

12 RRS Economizer Controller Quick Start Guide

FIGURE 29 - Trend File Name Structure

With each completed Export Trend, a comma separated

value (.csv) trend file is created in the top level of the flash

drive storage. The trend file size is typically less than 400 KB.

Trend files may be moved, copied, e-mailed, etc. like other

computer files. The file name is drawn from the controller

time at the moment the restoration file was created.

FIGURE 30 -

Trend file data viewed in Microsoft

Excel

The data of trend files can be viewed in spreadsheet pro-

grams such as Microsoft Excel or Open Office Calc. These

programs also offer the means to create graphs and charts

from the trend file data.

SELF TEST REPORT

The results of the Self Test functions are stored in non-vola-

tile memory of the controller is retained through the boot-up

sequence.

A “USB Missing” message will be shown when the (enter)

button is pressed when at (Level 1) “Update” (Level 2) “Selft-

estReport” location of the display menu without a compatible

flash drive connected to the USB port. A press of the esc

(cancel), (scroll up) or  (scroll down) button will then

resume menu navigation.

FIGURE 31 -

Exporting A Self-test Report

With a compatible flash drive connected to the USB port, the

(enter) button is pressed when at (Level 1) “Update” >

(Level 2) “SelftestReport” location of the display menu.

While the SelftestReport is in progress, “Exporting” will be

shown on the upper line of the display.

In a few seconds; “Export” on the upper line and “Done” will

be shown on the lower line of the display when the Self Test

Report function is complete. The flash drive may be then be

removed from the USB port if not needed for other functions.

A press of the esc (cancel),  (scroll up) or (scroll down)

button will then resume menu navigation.

FIGURE 32 -

Windows PC View Of Firmware

Upgrade, Restoration, Self Test Report

And Trend Files On A Flash Drive

With each completed Self-test Report, a comma separated

value (.csv) Self Test results file is created in the top level of

the flash drive storage. The Self Test results file size is typi-

cally less than 1 KB. Self Test results files may be moved,

copied, e-mailed, etc. like other computer files. The Self Test

results file name is always “SelftestReport.csv” if another Self

Test results file is in the top level of the flash drive storage it

will be overwritten by Self Test Report process.

RRS Economizer Controller

Trend File Name Structure

Trend_1970-01-01T011609.csv

Hour

Minute

Second

Day

Month

Time since controller boot-up

begins 1970-01-01T000000

Year

esc

Export Trend

>SelftestReport

Exporting

Export

Done

5292230-USG-B-0718

RRS Economizer Controller Quick Start Guide 13

FIGURE 33 - Self-Test File Data Viewed In Microsoft

Excel

The data of Self Test results files can be viewed in spread-

sheet programs such as Microsoft Excel or Open Office Calc

RRS ECONOMIZER CONTROLLER PARAMETER

CONFIGURATION FOR 3 THROUGH 6 TON PACK-

AGE UNITS

The descriptions in the Operation section assume the RRS

Economizer Controller is configured for proper interaction

with the Simplicity Lite board compressor control functions.

The lists that follow indicate “factory default” parameter set-

tings; field review of these settings should be made if issues

of compressor control arise.

• In the Details > Service > Factory menu location

• [Equipment Type] setting “Conv RTU”

• [Thermostat Type] setting “W”

• [Fan Control Type] setting “Single Speed”

• Lo Ambient En] setting “No”

• In the Details > Control > Compressor >Setup menu

location

• [Comp Enable] setting “Yes”

• [Comp Stages] setting “1”

• [Cmp Min Off Time] setting “60 sec”

• [Cmp Min On Time] setting “60 sec”

• [Comp 1 Lockout] setting “Normal”

• [Lo Ambient En] setting “No”

NOTE: With RRS Economizer Controller usage, the Simplic-

ity Lite [Fan On Delay: Cool] parameter is not effec-

tive and must remain at the default setting of 0

seconds. Simplicity Lite operation of the compres-

sor cannot begin until the RRS Economizer Control-

ler boot-up sequence is completed and the [Cmp

Min Off Time] timer expires (approximately 1 min-

ute, 16 seconds after power is applied to the RRS

Economizer Controller). In situations where the

indoor fan cycles with cooling operation and the unit

is powered-up; operation of the compressor cannot

begin until the Simplicity Lite compressor ASCD

expires, the RRS Economizer Controller boot-up

sequence is completed and the [Cmp Min Off Time]

timer expires (a total minimum of approximately 6

minutes, 16 seconds after power is applied to the

unit). If Y1 thermostat input is present, Simplicity

Lite will display flash code 11 during the RRS Econ-

omizer Controller boot-up sequence and the [Cmp

Min Off Time] timer period.

The descriptions in the Operation section also assume the

RRS Economizer Controller is configured properly for the

economizer accessory used in 3 through 6 ton package units.

The lists that follow indicate “factory default” parameter set-

tings; field review of these settings should be made if issues

of economizer control arise.

• In the Details > Service > Factory menu location.

• [Fresh Air Enable] setting “Off”

• [Damper Min Value] setting “2 V”

• [Feedback Min Value] setting “2 V”

Additional configuration of the RRS Economizer Controller is

dependent on the options, features and functions desired for

the application. Configuration of the associated parameters is

described in the Operation section.

OPERATION

The RRS Economizer Controller provides minimum position

ventilation and free cooling functions through direct control of

the economizer actuator. Coordination of the compressor,

optional power exhaust and remote alarm indication is pro-

vided through contact switching.

The RRS Economizer Controller is powered with unit indoor

blower operation; there is output from the Simplicity Lite G pin

so 24 volts AC power is present to the RRS Economizer Con-

troller C and R pins. All outputs end and the spring-return

actuator utilized in economizer accessories returns to the OA

damper fully closed / RA damper fully open whenever power

is removed from the controller.

The RRS Economizer Controller monitors the voltage applied

to the C and R pins:

5292230-USG-B-0718

14 RRS Economizer Controller Quick Start Guide

FIGURE 34 - Voltage Conditions

Menu parameters describe settings and the 2-10 volt DC out-

put to the economizer actuator ([Damper Command]) as a

percentage of the outside air damper position:

• “.0 %” = 2 volts DC output to the actuator / OA damper

fully closed / RA damper fully open

• “100.0 %” = 10 volts DC output to the actuator / OA

damper fully open / RA damper fully closed

With the RRS Economizer Controller powered, when no

economizer ventilation function is active the output from the

controller to position the economizer actuator is 2 volts DC

([Damper Command] is “.0 %”).

When multiple economizer ventilation functions concurrently

request to position the economizer actuator, priority of the

function is first considered. The shutdown function has the

highest priority for economizer actuator position, as well as

other controller functions. Low ambient minimum position has

the highest priority of the minimum position functions. Without

these priority functions active, the ventilation function requir-

ing the greatest amount of outside air determines the 2-10

volt DC output from the controller to position the economizer

actuator.

NOTE: Since the most rapid rate of [Damper Command]

change is 1% every 2 seconds, time allowances

should be made when observing any re-positioning

of the economizer actuator.

24 volts AC input to the controller SD pin initiates the shut-

down function where:

• The [Damper Command] is “.0 %”

• All binary outputs (Y1O, ERV-EXH) are switched off

• [Staged Out State] will indicate “Instant Shutdown”

• [Comp Control Mode] will indicate “Instant Shutdown”

• [Damper Mode] will indicate “Ramp Close”

• [Shutdown] will indicate “Alarm”

Once 24 volts AC input to the controller SD pin is removed:

• The [Damper Command] responds to positioning

requests

• Y1O binary output can resume when the [Cmp Min Off

Time] timer expires

• Compressor operation can then resume when the

Simplicity Lite compressor ASCD expires

• [Shutdown] will indicate “Normal”

The minimum position functions, free cooling, compressor

coordination and power exhaust/ERV operation descriptions

that follow assume that:

• The RRS Economizer Controller is configured for proper

interaction with the Simplicity Lite board compressor

control functions

• The controller boot-up sequence is completed

• The [Cmp Min Off Time] timer has expired (approxi-

mately 1 minute, 16 seconds after power is applied to the

RRS Economizer Controller)

• There is more than 19.2 volts AC to the C and R pins

• The shutdown function is not active

MINIMUM POSITION FUNCTIONS

To be effective, all minimum position functions require 24

volts AC input to the controller OCC pin ([Occupancy] indi-

cates “Occupied”). The minimum position functions then

determine the lowest value for the [Damper Command].

When 24 volts AC input to the controller OCC pin is removed

([Occupancy] indicates “Unoccupied”) the [Damper Com-

mand] is either “.0 %” or positioned for free cooling functions.

LOW AMBIENT MINIMUM POSITION

When active, the low ambient minimum position function has

the highest priority and overrides all other economizer mini-

mum position functions.

The low ambient minimum position function is enabled when

[Damper Lo Amb En] is set to “Yes”.

The [Lo Amb Min Pos] typically is set to provide less outside

air than [Damper Min Pos].

When enabled, the low ambient minimum position function is

active when [Outdoor Temp] falls below the [Low Ambient

Stpt] and [Occupancy] indicates “Occupied”. Then, the value

set for [Lo Amb Min Pos] determines the lowest value for the

[Damper Command].

The low ambient minimum position function is inactive when

[Outdoor Temp] rises to or above the [Low Ambient Stpt].

Then, the active minimum position function requiring the

greatest of outside air determines the lowest value for the

[Damper Command].

MINIMUM POSITION

The minimum position function is active when low ambient

minimum position is inactive and [Occupancy] indicates

“Occupied”. Then, the value set for [Damper Min Pos] deter-

mines the lowest value for the [Damper Command].

There is not a menu selection to directly disable the minimum

position function. However, the minimum position function is

19.2V

16.0V

12.0V

All controller functions available

ALARM: Outputs Limited Due to Brownout Input V

Any additional binary outputs are not permitted

ALARM: Outputs Disabled Due to Low Inmput V

ALL binary outputs are disabled

Controller OFF - will reboot when voltage is restored

5292230-USG-B-0718

RRS Economizer Controller Quick Start Guide 15

effectively disabled if the [Damper Min Pos] is set to the mini-

mum setting of “.0 %”.

FREE COOLING FUNCTIONS

Free cooling functions are disabled, but minimum position

functions remain enabled, when [Econ Enabled] is set to

“No”.

The following are required for free cooling functions to be

effective:

• [Econ Enabled] must be set to “Yes”

• [Outdoor Temp] cannot indicate “Out of range high”

• [Supply Temp] cannot indicate “Out of range high”

• There is 24 volts AC input to the RRS Economizer Con-

troller Y1 pin ([Y1-Tstat] indicates “On”)

Then, the free cooling function is active when the outdoor air

is suitable to use for cooling as determined by the free cool-

ing changeover method in use.

FREE COOLING CHANGEOVER

Free cooling changeover determines if the outdoor air is suit-

able to use for cooling. The method of free cooling change-

over depends on the sensor inputs available and/or on the

selection for the [Free Clg Select] parameter. The free cool-

ing changeover method may be from outside air dry bulb tem-

perature, outside air (single) enthalpy, or a comparison of

return and outside air (dual) enthalpy. A “Yes” value for [Free

Clg Avail] indicates the outdoor air is suitable to use for cool-

ing for the free cooling changeover method in current use.

The [Altitude] configuration item must be set for the nearest

100 feet of job site elevation for best control accuracy when

enthalpy changeover methods are used.

The outdoor air temperature and humidity sensor included

with the economizer accessory provides input to the control-

ler OAT ([Outdoor Temp]) and OAH ([Outdoor Humidity]) pins

for dry bulb and single enthalpy free cooling changeover

capabilities. The optional return air temperature and humidity

sensor provides input to the controller RAT ([Return Temp])

and RAH ([Return Humidity]) pins for the addition of dual

enthalpy free cooling changeover capabilities. Once sensor

presence has been detected and remains in range – the sen-

sor parameter does not indicate “Out of range low” or “Out of

range high” – the sensor input is available for use in free cool-

ing changeover.

The selection for the [Free Clg Select] parameter determines

the desired free cooling changeover method and limits for

advancement the free cooling changeover method:

• With [Free Clg Select] set to “Auto” – the free cooling

changeover method is determined by the temperature

and humidity inputs

• The free cooling changeover method is dual

enthalpy if [Outdoor Temp], [Outdoor Humidity],

[Return Temp] and [Return Humidity] inputs are

available

• The free cooling changeover method will revert to

single enthalpy if either [Return Temp] or [Return

Humidity] input is not available

• The free cooling changeover method will revert to

dry bulb if [Outdoor Humidity] input is not available

• The free cooling changeover method is single

enthalpy if only [Outdoor Temp] and [Outdoor

Humidity] inputs are available

• The free cooling changeover method will advance

to dual enthalpy if both [Return Temp] and [Return

Humidity] inputs are available

• The free cooling changeover method will revert to

dry bulb if [Outdoor Humidity] input

is not available

• The free cooling changeover method is dry bulb if

only [Outdoor Temp] input is available

• The free cooling changeover method will advance

to single enthalpy if [Outdoor Humidity] input is

available

• The free cooling changeover method will advance

to dual enthalpy if [Outdoor Humidity], [Return

Temp] and [Return Humidity] inputs are available

• With [Free Clg Select] set to “Dual Enthalpy” – the free

cooling changeover method remains determined by the

temperature and humidity inputs

• The free cooling changeover method is dual

enthalpy if [Outdoor Temp], [Outdoor Humidity],

[Return Temp] and [Return Humidity] inputs are

available

• The free cooling changeover method will revert to

single enthalpy if either [Return Temp] or [Return

Humidity] input is not available

• The free cooling changeover method will revert to

dry bulb if [Outdoor Humidity] input is not available

• The free cooling changeover method is single

enthalpy if only [Outdoor Temp] and [Outdoor

Humidity] inputs are available

• The free cooling changeover method will advance

to dual enthalpy if both [Return Temp] and [Return

Humidity] inputs are available

• The free cooling changeover method will revert to

dry bulb if [Outdoor Humidity] input is not available

• The free cooling changeover method is dry bulb if

only [Outdoor Temp] input is available

• The free cooling changeover method will advance

to single enthalpy if [Outdoor Humidity] input is

available

• The free cooling changeover method will advance

to dual enthalpy if [Outdoor Humidity], [Return

Temp] and [Return Humidity] inputs are available

• With [Free Clg Select] set to “Single Enthalpy” – the free

cooling changeover method will not advance to dual

5292230-USG-B-0718

16 RRS Economizer Controller Quick Start Guide

enthalpy if [Return Temp] and [Return Humidity] inputs

are available; the free cooling changeover method is

determined by the availability of [Outdoor Humidity] input

• The free cooling changeover method is single

enthalpy if [Outdoor Temp] and [Outdoor Humid-

ity] inputs are available

• The free cooling changeover method will revert to

dry bulb if [Outdoor Humidity] input is not available

• The free cooling changeover method is dry bulb if

only [Outdoor Temp] input is available

• The free cooling changeover method will advance

to single enthalpy if [Outdoor Humidity] input is

available

• With [Free Clg Select] set to “Dry Bulb Temperature” –

the free cooling changeover method will not advance to

single enthalpy or dual enthalpy if [Outdoor Humidity],

[Return Temp] and [Return Humidity] inputs are avail-

able; the free cooling changeover method is dry bulb

For all [Free Clg Select] settings, free cooling operation is not

permitted if [Outdoor Temp] input is not available.

Dry bulb free cooling changeover is based on the [Outdoor

Temp]. Dry bulb is the “standard option” free cooling change-

over method for the RRS Economizer Controller since the

included OAT/OAH sensor is the source for [Outdoor Temp]

but requires the [Free Clg Select] setting to be changed from

the default “Auto” to “Dry Bulb Temperature”. Dry bulb is also

the “fallback” free cooling changeover method since enthalpy

free cooling changeover methods can revert to dry bulb if

humidity inputs are not available. As a “best practice”, it is

recommended that the [Dry Bulb Stpt] be reviewed and have

a reasonable “fallback” setting for the application regardless

of the desired free cooling changeover method. When “Dry

Bulb Temperature” is the active free cooling changeover

method:

• [Free Clg Avail] will indicate “Yes” when both

• [Outdoor Temp] is at or below the [High OA Shut-

off] setting

• [Outdoor Air Enthalpy] falls 1 “B/#” or more below

the [OA Enth Setpt] setting

• [Free Clg Avail] will indicate “No” when either

• [Outdoor Temp] rises above the [High OA Shutoff]

setting

• [Outdoor Air Enthalpy] rises above the [OA Enth

Setpt] setting

Dual enthalpy free cooling changeover requires addition of

the optional return air temperature and humidity sensor. Dual

enthalpy free cooling changeover is based on a comparison

of the [Outdoor Air Enthalpy] to the [Return Air Enthalpy].

[Outdoor Air Enthalpy] is calculated from the [Outdoor Temp]

and the [Outdoor Humidity] inputs. [Return Air Enthalpy] is

calculated from the [Return Temp] and the [Return Humidity]

inputs. When “Single Enthalpy” is the active free cooling

changeover method:

• [Free Clg Avail] will indicate “Yes” when both

• [Outdoor Temp] is at or below the [High OA Shut-

off] setting

• [Outdoor Air Enthalpy] falls 1 “B/#” or more below

the [Return Air Enthalpy]

• [Free Clg Avail] will indicate “No” when either

• [Outdoor Temp] rises above the [High OA Shutoff]

setting

• [Outdoor Air Enthalpy] rises above the [Return Air

Enthalpy]

FREE COOLING OPERATION

Free cooling operation is initiated when both:

• There is 24 volts AC input to the RRS Economizer Con-

troller Y1 pin ([Y1-Tstat] indicates “On”)

• 24 volts AC originating from thermostat input to

the Simplicity Lite Y1 screw terminal, through the

Simplicity Lite Y1 output pin to the RRS Econo-

mizer Controller Y1 pin input

• [Free Clg Avail] indicates “Yes”

NOTE: Compressor operation by Simplicity Lite to supple-

ment free cooling operation by the RRS Economizer

Controller is available when a 2-stage cooling ther-

mostat is used to provide input to the Simplicity Lite

Y2 terminal. Other than the influence on the RRS

Economizer Controller supply air temperature input,

Simplicity Lite compressor operation from Y2 input

is independent of free cooling operation.

During free cooling operation:

• The RRS Economizer Controller Y1O pin output is de-

energized ([Compressor 1] indicates “Off”)

• Simplicity Lite will display flash code 11 and com-

pressor operation from Y1 thermostat/ECON input

ends.

• The [Damper Command] is increased if [Supply Temp] is

more than 0.5°F above the [Supply Temp Stpt]

• Free cooling operation can increase the [Damper

Command] up to “100.0 %”

• The [Damper Command] remains at the current position

if [Supply Temp] is within 0.5°F above or below the [Sup-

ply Temp Stpt]

• The [Damper Command] is decreased if [Supply Temp]

is more than 0.5°F below the [Supply Temp Stpt]

• If [Occupancy] indicates “Occupied”, free cooling

operation can decrease the [Damper Command]

to the active minimum position value

5292230-USG-B-0718

RRS Economizer Controller Quick Start Guide 17

• If [Occupancy] indicates “Unoccupied”, free cool-

ing operation can decrease the [Damper Com-

mand] to “0.0 %”

Free cooling operation ends when either:

• 24 volts AC input to the RRS Economizer Controller Y1

pin is removed ([Y1-Tstat] indicates “Off”)

• [Free Clg Avail] indicates “No”

When free cooling operation ends:

• The RRS Economizer Controller Y1O pin output is ener-

gized ([Compressor 1] indicates “On”) and Simplicity Lite

operation of the compressor from Y1 thermostat/ECON

input can resume if both

• 24 volts AC input to the RRS Economizer Control-

ler Y1 pin remains (free cooling operation ended

because [Free Clg Avail] indicates “No”)

• The [Cmp Min Off Time] timer expires

• The active minimum position value if [Occupancy]

indicates “Occupied”

• “0.0 %” if [Occupancy] indicates “Unoccupied”

COMPRESSOR SWITCHING BY SAT INPUT

Compressor switching by the RRS Economizer Controller

supply air temperature input and [Excess SAT Stpt] requires

the following to be effective:

• There is 24 volts AC input to the RRS Economizer Con-

troller Y1 pin ([Y1-Tstat] indicates “On”)

• [Free Clg Avail] indicates “No”

• [Supply Temp] cannot indicate “Out of range high”

Then, when [Supply Temp] falls to or below the [Excess SAT

Stpt]:

• The RRS Economizer Controller Y1O pin output is de-

energized ([Compressor 1] indicates “Off”)

• Simplicity Lite will display flash code 11 and com-

pressor operation from Y1 thermostat/ECON input

ends

• The [Cmp Min Off Time] timer begins

• An “Excessive Supply Air Temp Cooling” Alarm becomes

active

Then, when [Supply Temp] rises above the [Excess SAT

Stpt] and the [Cmp Min Off Time] timer expires:

• The RRS Economizer Controller Y1O pin output is ener-

gized ([Compressor 1] indicates “On”)

• Simplicity Lite compressor operation from Y1 ther-

mostat/ECON input can resume

• The “Excessive Supply Air Temp Cooling” Alarm is no

longer active

NOTE: Compressor operation by Simplicity Lite from input to

the Simplicity Lite Y2 terminal is not influenced by

the RRS Economizer Controller supply air tempera-

ture input and [Excess SAT Stpt]

POWER EXHAUST/ERV FUNCTIONS

Through the ERV-EXH output pin ([Exhaust Fan]), the BASIC

model of the RRS Economizer Controller provides 24 volts

AC output for control of non-modulating power exhaust

accessories or pivoting wheel exhaust recovery ventilator

accessories.

Power exhaust/ERV functions are disabled when [Exhaust

Setup] is set to “None”. The [Exhaust Setup] setting of “Vari-

able Frequency Fan” is not valid for the BASIC model of the

RRS Economizer Controller and should not be used.

Power exhaust control switching when [Exhaust Setup] is set

to “Non Modulating Control”:

• The [Exhaust Fan] is “On” if the [Damper Command]

rises above the [Damper % Fan On] setting

• The [Exhaust Fan] is “Off” if the [Damper Command] falls

below the [Damper % Fan Off] setting

NOTE: Although any setting from 0% to 100% is accepted,

[Damper % Fan Off] must have a setting less than

[Damper % Fan On] and greater than [Damper Min

Pos]

Exhaust recovery ventilator control switching when [Exhaust

Setup] is set to “ERV”:

• The [Exhaust Fan] is “On” if the [Damper Command]

rises above “50%”

• The [Exhaust Fan] is “Off” if the [Damper Command] falls

to “45%” or less

RRS ECONOMIZER CONTROLLER ALARMS

[Fault Detect En] must be set to “Enable” for California Title

24 Alarms to be effective. California Title 24 Alarms can only

occur if the cause of the Alarm has been sustained for a

period of 10 minutes or more.

When any Alarm is active:

• The red FAULT LED will display a repetitive double-flash/

pause

• The contact between ALMCOM and ALM terminals will

be closed

The five most recently occurring active Alarms are listed at

parameter menu navigation Level 0 and the Level 1 [Alarms]

section of the menu. The active Alarms are listed in order of

most recent to oldest. Alarms are removed from the listing of

active Alarms when the conditions that caused the Alarm are

no longer effective. The listing of active Alarms is not retained

when the controller is not powered.

5292230-USG-B-0718

18 RRS Economizer Controller Quick Start Guide

Table 2: Alarm Cause And Response

Alarm Cause Controller Response

Outputs Disabled Due to Low Input V

There is between.12.0 and 16.0 volts AC to

the controller C and R pins.

Additional binary output (Y1O, ERV-EXH) is

not permitted (Simplicity Lite will display flash

code 11, compressor operation from Y1 ther-

mostat/ECON input ends)

Outputs Limited Due to Brownout Input V

There is between 16.0 and 19.2 volts AC to

the controller C and R pins

All binary outputs (Y1O, ERV-EXH) are

turned off (Simplicity Lite will display flash

code 11, compressor operation from Y1 ther-

mostat/ECON input ends)

Outdoor Air Temperature Sensor Failure

One-time OAT sensor input presence has

been detected; input to the OAT terminal is

currently 0.05 volts DC or less (C to OAT is

11,932,3279

Ω or more) / 3.62 volts DC or

more (C to OAT is 207

Ω or less)

Free cooling functions are not permitted;

[Outdoor Temp] indicates “Out of range high”

Return Air Temperature Sensor Failure

One-time RAT sensor input presence has

been detected; input to the RAT terminal is

currently 0.05 volts DC or less (C to RAT is

11,932,327

Ω or more) / 3.62 volts DC or

more (C to RAT is 207

Ω or less)

Dual enthalpy free cooling changeover

reverts to single enthalpy; [Return Temp] indi-

cates “Out of range high”

Supply Air Temperature Sensor Failure

One-time SAT sensor input presence has

been detected; input to the SAT terminal is

currently 0.05 volts DC or less (C to SAT is

11,932,327

Ω or more) / 3.62 volts DC or

more (C to SAT is 207? or less)

Free cooling functions are not permitted;

compressor switching by the supply air tem-

perature input and [Excess SAT Stpt] is not

effective (Y1O output is permitted with low

SAT); [Supply Temp] indicates “Out of range

high”

Econ Controller Calibration Error

Firmware files associated with the DMP out-

put are missing or corrupt (it is likely this

Alarm can be corrected through use of the

Load Firmware process)

Minimum position functions and free cooling

functions are not permitted

Return Air Humidity Sensor Failure

One-time RAH sensor input presence has

been detected; input to the RAH terminal is

currently 0.05 volts DC or less / 10.05 volts

DC or more

Dual enthalpy free cooling changeover

reverts to single enthalpy; [Return Humidity]

indicates “Out of range low” / “Out of range

high”

Outdoor Air Humidity Sensor Failure

One-time OAH sensor input presence has

been detected; input to the OAH terminal is

currently 0.05 volts DC or less / 10.05 volts

DC or more

Dual enthalpy and single enthalpy free cool-

ing changeover reverts to dry bulb; [Outdoor

Humidity] indicates “Out of range low” / “Out

of range high”

Indoor Air Quality Sensor Failure

One-time IAQ sensor input presence has

been detected; input to the IAQ terminal is

currently 0.05 volts DC or less / 10.05 volts

DC or more

Demand ventilation functions are not permit-

ted; [Indoor Quality] indicates “Out of range

low” / “Out of range high”

Low Outdoor Air Temp Cooling Cutout

[Lo Ambient En] has been set to “Yes” (mis-

configured); [Outdoor Temp] is below the [Lo

Ambient Stpt] setting (both [Lo Ambient En]

and [Lo Ambient Stpt] are found in the Details

> Control > Compressor > Setup menu loca-

tion)

Y1O output is not permitted (Simplicity Lite

will display flash code 11, compressor opera-

tion from Y1 thermostat/ECON input ends)

Excessive Supply Air Temp Cooling

One-time SAT sensor input presence has

been detected; [Supply Temp] falls to or

below the [Excess SAT Stpt]

Y1O output is not permitted; the [Cmp Min Off

Time] timer begins when Y1O output is

switched off (Simplicity Lite will display flash

code 11, compressor operation from Y1 ther-

mostat/ECON input ends)

Subject to change without notice. Printed in U.S.A. 5292230-USG-B-0718

York International Corporation

5005 York Drive

Norman, OK 73069

Air Temperature Sensor Failure (California Title

24-type Alarm)

[Fault Detect En] is set to “Enable”; one-time

OAT and/or SAT sensor input presence has

been detected; input to the OAT and/or SAT

terminal is currently 0.05 volts DC or less (C

to OAT is 11,932,327

Ω or more) / 3.62 volts

DC or more (C to OAT is 207

Ω or less) and

has been sustained for a period of 10 minutes

or more

Free cooling functions are not permitted due

to the “Outdoor Air Temperature Sensor Fail-

ure” and/or “Supply Air Temperature Sensor

Failure” Alarm; [Outdoor Temp] and/or [Sup-

ply Temp] indicates “Out of range high”

Econ Economizing When It Should Not (Cali-

fornia Title 24-type Alarm)

Possibly caused by configuration error: [Feed-

back Min Value] is not properly set for “2 V”

[Fault Detect En] is set to “Enable”; [Damper

Feedback] is currently greater than the

[Damper Command] by 8% or more and has

been sustained for a period of 10 minutes or

All functions remain active/available

Econ Not Economizing When It Should (Cali-

fornia Title 24-type Alarm)

Possibly caused by configuration error: [Feed-

back Min Value] is not properly set for “2 V”

[Fault Detect En] is set to “Enable”; [Damper

Feedback] is currently less than the [Damper

Command] by 8% or more and has been sus-

tained for a period of 10 minutes or more

All functions remain active/available

Economizer Damper Not Modulating (Califor-

nia Title 24-type Alarm)

Possibly caused by configuration error: [Feed-

back Min Value] is not properly set for “2 V”

[Fault Detect En] is set to “Enable”; [Damper

Feedback] is currently greater or less than

the [Damper Command] by 8% or more and

has been sustained for a period of 10 minutes

or more

All functions remain active/available

Economizer Letting In Excess Outdoor Air

(California Title 24-type Alarm)

Possibly caused by configuration error: [Feed-

back Min Value] is not properly set for “2 V”

[Fault Detect En] is set to “Enable”; when

only minimum position functions are active,

[Damper Feedback] is currently greater than

the [Damper Command] required for the

active minimum position function by 8% or

more and has been sustained for a period of

10 minutes or more

All functions remain active/available

Table 2: Alarm Cause And Response (Continued)

Alarm Cause Controller Response

Table 3: Key Default Parameter Settings For Use Of

The Basic RRS Economizer Controller

Parameter Default

Econ Enable Yes

Fault Detect En Disable

Lo Ambient En No

Free Clg Select Auto

Damper Min Value 2 V

Feedback Min Value 2 V

Damper Min Pos 15%

Comp Enable Yes

Cmp Min Off Time 60sec

Cmp Min On Time 60sec

Comp 1 Lockout Normal

Dry Bulb Stpt 55.0 F

Damper % Fan Off 20%

Equipment Type Conv RTU

Thermostat Type W

Comp Stages 1

Excess SAT Stpt 44.0 F

Supply Temp Stpt 55.0 F

Fan Control Type Single Speed

Exhaust Setup Non Modulating Control

Damper Lo Amb En Yes

Low Ambient Stpt 0.0 F

Lo Amb Min Pos 0%

Table 3: Key Default Parameter Settings For Use Of

The Basic RRS Economizer Controller

Parameter Default

Johnson Controls RRS Economizer Controller Quick start guide

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