Greenheck 474894 Microprocessor Controller TAP v2.00 November 2011 Operating instructions

Greenheck
Brand
Greenheck
Model
474894 Microprocessor Controller TAP v2.00 November 2011
Type
Operating instructions
Program Features
The DDC controller offers improved control through
easy monitoring and adjustment of unit parameters
by way of a lighted graphical display and a push-
button keypad.
Pre-Programmed Operating Sequences
The controller has been pre-programmed to offer
multiple control sequences to provide tempered
air. Factory default settings allow for easy setup
and commissioning. The sequence parameters are
fully adjustable. Refer to the Sequence of Operation
beginning on page 2 for details.
BMS Communication
With the addition of an optional BMS Communication
card, the user can remotely adjust set points, view
unit status points and alarms. The DDC controller is
capable of communicating over several protocols:
•BACnet®MSTP
•BACnet®IP/Ethernet
•LonWorks®
•Modbus
SeePointsListonpages32and33foracompletelist
of BMS points.
Internal Time Clock
The controller has an internal programmable time
clock, allowing the user to add up to seven different
occupancy schedules. The user may also add
Holidays for additional energy savings.
Alarm Management
The DDC controller will monitor the unit conditions
for alarm conditions. Upon detecting an alarm, the
controller will record the alarm description, time,
date, available temperatures, and unit status for user
review.Adigitaloutputisreservedforremotealarm
indication.AlarmsarealsocommunicatedviaBMS(if
equipped).
Occupancy Modes
The DDC controller offers three modes of determining
occupancy: a dry contact, the internal time clock
ortheBMS.IfintheUnoccupiedmodetheunitwill
either be shut down, or will cycle on to maintain an
adjustable unoccupied room temperature set point.
Remote Display Panel (Optional)
Atouchpaddisplaypanelallowsforremote
monitoring and adjustment of parameters, allowing
ease of control access without going outdoors.
Introduction
TAP v2.00
Version Date: 9/22/11
WARNING
Electricalshockhazard.Cancausepersonalinjury
or equipment damage. Service must be performed
only by personnel that are knowledgeable in the
operation of the equipment being controlled.
1
DDC Controller for Tempered Air Products
Reference Guide for the DDC Controller
Pleasereadandsavetheseinstructions.Readcarefullybeforeattemptingtooperateormaintaintheproduct
described.Protectyourselfandothersbyobservingallsafetypractices.Failuretocomplywithinstructions
couldresultinpersonalinjuryand/orpropertydamage!Retaininstructionsforfuturereference.
®
®
Part #474894
DDC Controller for
Tempered Air Products
Sequence of Operation . . . . . . . . . . . . . . . 2
General Operation . . . . . . . . . . . . . . . . 2
SetPointControl . . . . . . . . . . . . . . . . . 3
Heating . . . . . . . . . . . . . . . . . . . . . . 3
Economizer . . . . . . . . . . . . . . . . . . . . 3
Cooling . . . . . . . . . . . . . . . . . . . . . . 3
Dehumidification . . . . . . . . . . . . . . . . . 4
Reheat . . . . . . . . . . . . . . . . . . . . . . . 4
Alarms . . . . . . . . . . . . . . . . . . . . . . . 4
EnergyRecoveryWheelSequences . . . . . . . 4
OutdoorAirandRecirculated(Recirc)Air . . . . 5
ExhaustFanVFD . . . . . . . . . . . . . . . . . 5
SupplyFanVFD . . . . . . . . . . . . . . . . . . 5
Controller Overview . . . . . . . . . . . . . . . . 6-7
Display Use . . . . . . . . . . . . . . . . . . . . . 8
ExampleofParameterAdjustment . . . . . . . . . 8
ExampleofAlarms . . . . . . . . . . . . . . . . . 9
Menu Overview . . . . . . . . . . . . . . . . . 10-11
Main Menu Overview . . . . . . . . . . . . . . 12-14
Menus
A.
On/OffUnit . . . . . . . . . . . . . . . . .15
B.
Setpoin . . . . . . . . . . . . . . . . . 16-19
C.
Clock/Scheduler. . . . . . . . . . . . . .20
D.
Input/Output . . . . . . . . . . . . . . . .20
E.
DataLogger . . . . . . . . . . . . . . . . 20
F.
Board Switch . . . . . . . . . . . . . . .21
G.
Service
a.Information . . . . . . . . . . . . . . . . 21
b. Overrides . . . . . . . . . . . . . . . 21-23
c. BMS Config . . . . . . . . . . . . . . 23-25
d. Service Settings
a. Working hour set. . . . . . . . . . . .25
b.Probeadjustment . . . . . . . . . . . 26
c.Password/Defaults . . . . . . . . . .26
H.
Manufacturer
a. Configuration . . . . . . . . . . . . . 26-27
b.I/OConfiguration . . . . . . . . . . . . .27
c. Factory Settings . . . . . . . . . . . 27-31
d.Initialization . . . . . . . . . . . . . . . . 31
PointsList
LonWorks® . . . . . . . . . . . . . . . . . . . . 32
ModBus/BACnet® . . . . . . . . . . . . . . . .33
AuxiliaryI/O(pCOe) . . . . . . . . . . . . . . . . .34
Setup . . . . . . . . . . . . . . . . . . . . . . .34
Troubleshooting . . . . . . . . . . . . . . . . . . .35
NTC Temperature Sensor Chart . . . . . . . . . .35
BACnet®MSTPQuickStart . . . . . . . . . . . .36
BACnet®IP/EthQuickStart . . . . . . . . . . . . 37
MaintenanceLog . . . . . . . . . . . . . . . . 38-39
Warranty . . . . . . . . . . . . . . . . . . Backcover
Table of Contents Sequence of Operation
The DDC controller can be configured for air handler,
energyrecoveryandmake-upairapplications.Each
applicationutilizessimilartechnologiesforheating
and cooling: chilled water, hot water, indirect gas,
electric heat, packaged DX cooling, and packaged
DXcoolingwithdigitalscrolls.Allsetpoints,lockouts
and delays are user adjustable.
General Operation
UNIT START COMMAND: The DDC controller
requires a digital input to enable operation. The unit
can then be commanded on or off by this digital
input, the BMS or internal time clock.
•Initialdelay
•Factorymountedandwireddampersarepowered,
if equipped.(Outdoorair,exhaustair,and
recirculation air dampers).
•Exhaustfanstartsaftera10seconddelay,if
equipped.
•Supplyfanstarts5secondsaftertheexhaustfan.
•Heating,coolingandwheeloperation(page3).
UNIT STOP COMMAND (OR DE-ENERGIZED):
•Supplyfan,exhaustfan,tempering,andwheelare
de-energized.
•OutdoorairandExhaustairdamperdampersare
closed after a 10 second delay. Recirculation air
dampers spring open.
OCCUPIED/UNOCCUPIED MODES: The DDC
controller offers three modes of determining
occupancy: a dry contact, the internal time clock or
the BMS. When in the unoccupied mode, the unit will
either be shut down, or will cycle on to maintain the
unoccupied room temperature set point.
•Occupied Mode:
- Exhaustfanon,if equipped.
- Supply fan on.
- Heating(refertoHeatingsection).
- Cooling(refertoCoolingsection).
- Wheelcontrol(page4),if equipped.
- Dampercontrol(page5),if equipped.
•Unoccupied Mode (Unit Off): Unit remains off when
in unoccupied mode.
•Unoccupied Mode (Cycle on Room): Optional
unoccupied mode when there is a recirculation
damper and a room temperature sensor wired to
unit.
- Exhaustfanoff,if equipped.
- Supply fan off.
- Recirculation air damper open.
- OAdamperclosed.
- Unoccupied heating is enabled when the
room temperature is less than the unoccupied
heatingsetpointminusdifferential(65°F±5°F).
The supply air temperature set point will be
settothesupplymaximumresetlimit(90°F).
The unit cycles off when the room temperature
reaches the unoccupied heating set point plus
differential.
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DDC Controller for Tempered Air Products
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Sequence of Operation
- Unoccupied cooling is enabled when the room
temperature is greater than the unoccupied
coolingsetpointplusdifferential(85°F±5°F).
The supply air temperature set point will be
settothesupplyminimumresetlimit(55°F).
The unit cycles off when the room temperature
reaches the unoccupied cooling set point minus
differential.
Set Point Control
Supply air temperature set point can either be reset
byoutsideairtemperature,orroomtemperature.If
equipped with BMS communications, the user can
also directly set the supply temperature set point, or
roomtemperaturesetpoint(ifequippedwitharoom
temp sensor).
•Outdoor Air Temperature Reset Function:
Without a room temperature sensor, the controller
will default to supply temperature reset based
on outdoor air temperature. The controller will
monitortheOAtemperatureandresetthesupply
temperature set point based upon the outdoor air
reset function.
•RoomTemperatureReset(optional): With a
room temperature sensor, the controller will
adjustthesupplyairtemperaturesetpointup/
down accordingly to satisfy the desired room
temperature. Cooling and heating are determined
by a difference in temperature of the room
temperature sensor compared to the desired room
temperature set point.
Anoptionalroomdehumidstatcanalsobeusedfor
room humidity control for both operating sequences.
Heating
The heating is controlled to maintain the supply
temperature set point. The heating will be locked out
when the outside air temperature is above the heating
lockout(70°F).
•Indirect Gas Furnace: DDC controller will
modulate the indirect gas furnace to maintain the
supply temperature set point.
• Hot Water Coil: DDC controller will modulate a
hotwatervalve(providedbyothers)tomaintain
the supply temperature set point. Coil Freeze
protection must be provided by others in the field!
•Electric Heater: DDC controller will modulate an
electric heater to maintain the supply temperature
set point.
•Heat Pump: DDC controller will stage
compressor(s)tomaintainthesupplyairsetpoint.
This signal will come wired to the factory provided
heat pump module. All external water valves and
valve controls are provided, wired and mounted
by others in the field, including freeze protection.
Economizer
Iftheapplicationrequirescooling,andtheoutdoor
air conditions are suitable for free cooling, the
controllermayentertheeconomizerstate.Iftheunit
iseconomizingandthedischargetemperatureset
point is not being met, the controller may bring on
mechanicalcooling.Ifequippedwithamodulating
outdoor air and recirculated air damper, the dampers
willmodulateopen.Ifequippedwithanenergywheel,
seeEnergyRecoveryWheelSequencesonpage4.
•Temperature: Theeconomizerwillbelockedout
when:
- Theoutsideairislessthantheeconomizerlow
lockout(40°F).
- Theoutsideairisgreaterthantheeconomizer
highlockout(65°F).
- The unit is operating in dehumidification mode.
- There is a call for heating.
•Temperature/Dew Point:Theeconomizerwillbe
locked out when:
- Theoutsideairislessthantheeconomizerlow
lockout(40°Fdry-bulb).
- Theoutsideairisgreaterthantheeconomizer
highlockout(75°Fdry-bulb).
- Theoutsideairisgreaterthantheeconomizer
highdew-pointlockout(55°Fdew-point)
- The unit is operating in dehumidification mode.
- There is a call for heating.
Cooling
The cooling is controlled to maintain the supply
temperature set point. The mechanical cooling will be
locked out when the outside air temperature is below
thecoolinglockout(55°F).
•Chilled Water: DDC controller will modulate a
chilledwatervalve(providedbyothers)tomaintain
supply air set point. Coil Freeze protection must
be provided by others in the field!
•Packaged DX Cooling (Standard Scroll): DDC
controller will control stages of cooling to maintain
the supply air set point.
•Packaged DX Cooling (Digital Scroll): DDC
controller will modulate the digital scroll to maintain
the supply air temperature set point.
•Heat Pump: DDC controller will power the
reversing valve within the heat pump module
to direct the refrigerant flow for airside cooling.
The cooling is controlled to maintain the supply
temperature set point. All external water valves
and valve controls are provided, wired and
mounted by others in the field, including freeze
protection.
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DDC Controller for Tempered Air Products
®
Dehumidification
The cooling is controlled to maintain the cold coil set
point. The Dehumidification sequence will be locked
outwhentheOAislessthanthedehumidification
lockout(10°F)abovethecoldcoilsetpoint.
•OptionalRoomDehumidistat: The room
dehumidistat is a field mounted sensor that
monitorstherelativehumidity(RH)oftheroom.
IftheRHexceedssetpoint,thedehumidistatwill
decrease the cold coil set point to the dehumidify
setpoint(50°F)tofurtherdrythesupplyair.
Once the room dehumidistat is satisfied, the DDC
controller will resume normal operation.
•Optional Room Relative Humidity Sensor: The
room relative humidity sensor is a field mounted
sensorthatmonitorstherelativehumidity(RH)
oftheroom.IfthemeasuredRHexceedstheset
point, the unit will decrease the cold coil set point
tothedehumidifysetpoint(50°F)tofurtherdrythe
supply air. Once the room RH has dropped below
the set point, the DDC controller will resume normal
operation.
Reheat
While the unit is in dehumidification mode, the supply
aircanbereheatedviaPrimaryHeatingSource,On/
Off Hot Gas Reheat or Modulating Hot Gas Reheat.
•Primary Heating Source: The main heating source
is enabled to reheat the air to meet the supply
temperaturesetpoint.(Exceptheatpump).
•Modulating Hot Gas Reheat (bypass damper): The
DDCcontrollerwillopentheOn/Offhotgasreheat
valve, and modulate the Hot Gas Reheat bypass
damper to maintain the supply temperature set
point.
•Modulating Hot Gas Reheat (valve): The DDC
controller will modulate the hot gas reheat valve to
maintain the supply temperature set point.
•On/Off Hot Gas Reheat: The DDC controller will
opentheOn/Offhotgasreheatvalvetomaintain
the supply temperature set point.
Alarms
The DDC controller includes a digital output for
remoteindicationofanalarmcondition.Possible
alarms include:
• Dirty Filter Alarm:Iftheoutsideairorreturn
air filter differential pressure rises above the
differential pressure switch set point, the DDC
controller will activate an alarm.
•Supply and Exhaust Air Proving Alarm: DDC
controller monitors proving switch on each blower
and displays an alarm in case of blower failure.
•Temperature Sensor Alarm: DDC controller
will send an alarm in the case of a failed air
temperature sensor.
•Supply Air Low Limit:Ifthesupplyairtemperature
dropsbelowthesupplyairlowlimit(35°F),theDDC
controllerwillde-energizetheunitandactivatethe
alarmoutputafterapresettimedelay(300s).
•Other Alarms: Wheel Rotation, High Wheel
Pressure,High/LowRefrigerantPressure.
Energy Recovery Wheel Sequences
Economizer (optional):Iftheunitisequippedwithan
energyrecoverywheel,theeconomizerwillmodulate/
stop the energy wheel to achieve free cooling.
• Stop Wheel:Wheneconomizermodeisenabled
and there is a signal for cooling, the wheel will stop
rotating to allow free cooling.
•Modulate Wheel:Wheneconomizermodeis
enabled and there is a signal for cooling, the wheel
VFDmodulateswheelspeedtomaintainthesupply
temperature set point.
• Energy Wheel Bypass Dampers (optional): During
normal operation, the dampers shall remain closed
to allow full operation of the energy wheel. During
economizersequences,thebypassdamperswillbe
open to alleviate pressure drop through the wheel,
while allowing more outdoor air to be used for
economizercooling.
Frost Control (optional): The DDC controller will
activate the frost control method when the outdoor
airtemperatureislessthanthedefrostsetpoint(5°F)
and the wheel pressure switch is closed, due to a
high wheel pressure drop.
•Electric Preheater: When frosting is occurring, the
preheaterisenergizedtodefrostthewheel.Once
the pressure drop decreases below the pressure
switchsetpoint,thepreheaterisde-energized.
•Modulate Wheel: When frosting is occurring, the
VFDslowsthewheeltoallowdefrostingtooccur.
Once the pressure drop decreases below the
pressure switch set point, the wheel returns to full
speed.
•Stop Wheel: When frosting is occurring, the
energy wheel is cycled OFF for 2 minutes and ON
for30minutes.Oncethepressuredropdecreases
belowthesetpoint,frostmodeisde-energizedand
the energy wheel is no longer cycled.
•Timed Exhaust: When frosting is occurring, the
supply fan is cycled off along with the tempering
for5minutes.Theexhaustfanwillcontinueto
run,allowingthewarmexhaustairtodefrostthe
wheel.Afterthe5minutecycle,thesupplyfanand
temperingarere-energizedtocontinuenormal
operation. The unit will continue normal operation
for30minutesbeforeallowinganotherdefrost
cycle to occur.
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DDC Controller for Tempered Air Products
®
Outdoor Air and Recirculated (Recirc) Air
Damper Control
Ifequippedwithamodulatingoutdoorairand
recirculated air damper, the dampers will open to
aMinimumOutdoorAirPosition(MinOA)whenin
Occupied mode.
•Optional Room CO2 Sensor: The controller will
proportionallymodulatetheOA/RAdampersbased
upon a comparison of the CO2 set point to the
actualCO2levelreportedfromthesensor.As
the CO2 level rises, the outdoor air damper will
beproportionallymodulatedfromMinOAtothe
maximumdampersetting.
Exhaust Fan VFD Sequence
IfthefactoryhasinstalledaVFDandwiredittothe
controller, it is intended to operate at a constant
speed during operation. This speed needs to be set
during test and balance of the unit.
• Optional Building Static Pressure Sensor: The
exhaustfanismodulatedbaseduponthesignal
from a building static pressure sensor. The
microprocessorcontrollerwillmodulatetheexhaust
fan based upon a comparison of the building static
pressure set point to the actual building static
pressure level reported from the sensor.
•Optional Supply Fan Tracking: The controller will
proportionallymodulatetheexhaustfanbased
upon the supply fan speed.
•Optional Outdoor Air Damper Tracking: The
controllerwillproportionallymodulatetheexhaust
fan based upon the outdoor air damper position.
Supply Fan VFD Sequence
IfthefactoryhasinstalledaVFDandwiredittothe
controller, it is intended to operate at a constant
speed during operation. This speed needs to be set
during test and balance of the unit
•Optional Room CO2 Sensor: The controller will
modulate the supply fan based upon a comparison
of the CO2 set point to the actual CO2 levels
reported from the sensor. Mechanical high static
protection cutoffs must be installed by others
to protect the system and equipment from over-
pressurization.
•Optional Duct Static Pressure Sensor: The
controller will modulate the supply fan based upon
a comparison of the duct static pressure set point
to the actual duct static pressure level reported
from the sensor. Mechanical high static protection
cutoffs must be installed by others to protect the
system and equipment from over-pressurization.
The manufacturer does not assume responsibility
for this.
•OptionalBuildingStaticPressureSensor:The
supply fan is modulated based upon the signal
from a building static pressure sensor. The
microprocessor controller will modulate the supply
fan based upon a comparison of the building static
pressure set point to the actual building static
pressure level reported from the sensor.
5
DDC Controller for Tempered Air Products
®
Small Controller Overview
J1J1 J24J24
J14J14
J11J11
J15J15
J2J2 J5J5J4J4J3J3
service card
Rx-/Tx-
Rx+/Tx+
GND
C1
NO1
NO2
NO3
C1
C4
NO4
NO5
NO6
C4
C7
NO7
C7
NO8
C8
NC8
G
G0
24 VAC to Controller
B1
B2
B3
GND
+VDC
+Vterm
GND
+5 VREF
B4
BC4
B5
BC5
VG
VG0
Y1
Y2
Y3
Y4
ID1
ID2
ID3
ID4
ID5
ID6
ID7
ID8
IDC1
J10J9
field card serial card
input: 24V~/ V ; 50 to 60 Hz
max. power: 40 VA/15W
J12J12 J13J13
Room RH or Dehumidistat
Room Temperature Sensor
After Cold Coil Temperature Sensor
Sensor B1, B2, B3 Commons
Supply Discharge Temperature Sensor
Outdoor Air Temperature Sensor
24 VAC for Analog Outputs
24 VAC When Unit On
Frost Control Enable
Output to Supply Fan
Output to Exhaust Fan
24 VAC from Supply Fan Proving
Heating Enable/Reversing Valve
Compressor Output 1
Compressor Output 2
24 VAC
Output to Dampers
Alarm Dry Contact
Energy Wheel Analog Output
Heating Analog Output
Cooling Analog Output
Hot Gas Reheat Analog Output
Supply Fan Proving
Wheel Pressure
Wheel Rotation Alarm
Unit On/Off
Exhaust Fan Proving
Occupied/Unoccupied Input
Dirty Filter
Compressor Limit
OptionalBACnet,LonWorksand
Modbus cards are located in
Serial Card port
Remote Display
(sixconductorRJ25cable)
6
DDC Controller for Tempered Air Products
®
Large Controller Overview
Remote Display
(sixconductorRJ25cable)
service card
Rx-/Tx-
Rx+/Tx+
GND
C1
NO1
NO2
NO3
C1
C4
NO4
NO5
NO6
C4
C7
NO7
C7
NO8
C8
NC8
NO12
C12
NC12
NO13
C13
NC13
C9
NO9
NO10
NO11
C9
G
G0
B1
B2
B3
GND
+VDC
+V
term
GND
+5 V
REF
B4
BC4
B5
BC5
VG
VG0
Y1
Y2
Y3
Y4
ID1
ID2
ID3
ID4
ID5
ID6
ID7
ID8
IDC1
B6
B7
B8
GND
ID9
ID10
ID11
ID12
IDC9
ID13H
ID13
IDC13
ID14
ID14H
J1 J24 J2 J3
J4 J5
J7
J8
J20
J21
J14
J11
J10J9
J13
J12
J22
J16 J17
J18
J15
J23
J6
J19
NO14
C14
NC14
NO15
C15
NC15
C16
NO16
NO17
NO18
C16
E-
E+
GND
ID15H
ID15
IDC15
ID16
ID16H
Y5
Y6
ID17
ID18
IDC17
B9
BC9
B10
BC10
field card serial card
input: 24V~/ V ; 50 to 60 Hz
max. power: 40 VA/15W
Wheel Frost Mode
24 VAC When Unit On
Exhaust Fan Enable
Supply Fan Enable
Heating Enable/Reversing Valve
24 VAC from Supply Fan Proving
Staged Compressor 2
Staged Compressor 1
Economizer Mode/Output to Dampers
24 VAC
Alarm Dry Contact
Wheel Pressure Limit
Supply Fan Proving
Unit On/Off Input
Wheel Rotation Alarm
Occupied/Unoccupied Input
Exhaust Fan Proving
Compressor Limit
Dirty Filter Input
Supply Fan VFD Output
Room Temperature Sensor
Exhaust Fan VFD Output
Outdoor Air Damper Analog Output
Cooling Analog Output
Heating Analog Output
Hot Gas Reheat Analog Output
24VAC for Analog Outputs
Outdoor Relative Humidity Sensor
Duct Pressure Sensor
Building Pressure Sensor
Room RH or Dehumidistat
After Cold Coil Temperature Sensor
CO2 Sensor
Sensor B1, B2, B3 Commons
Supply Discharge Temperature Sensor
Outdoor Air Temperature Sensor
24VAC to Controller
!
!
OptionalBACnet,LonWorksand
Modbus cards are located in
Serial Card port
7
DDC Controller for Tempered Air Products
®
The DDC controller is located in the unit control panel.
Thefaceofthecontrollerhassixkeys,allowingthe
user to view unit conditions and alter parameters. The
DDC controller is pre-programmed with easy to use
menus.
Tochangethedisplaycontrast,holdtheEnterand
Escapebuttonwhilepressingtheupanddownarrows.
Aremotemounteddisplayisalsoavailable,which
connects via the J10port.Asixwirepatchcableis
needed.
Keypad Description
Prg Esc
Alarm
Buttonwillblinkred,indicatinganalarmcondition.Presstoreviewcurrentalarms.To
reviewpreviousalarms,accesstheDATALOGGERthroughthemainmenu.
Prg Esc
DownArrow
The arrow keys allow the user to scroll through different screens and adjust parameters.
Prg Esc
UpArrow
Prg Esc
Enter
A.Inscreenswithadjustableparameters,pressingtheEnterkeymovesthecursorfrom
the upper left corner of the screen to the parameter. The arrow keys can then be used
to adjust the parameter.
B.Tomovetothenextparameteronthesamescreen,presstheEnterbutton.
C.Tosavethechange,presstheEnterbuttonuntilthecursormovesbacktotheupper
left corner of the screen.
Prg
Esc
Escape Allowstheusertoexitthecurrentmenu,jumpingtotheMainMenu.
Prg
Esc
Program
PressingthePrg(Program)buttonallowstheusertoentertheMainProgramMenu.
Refertopages10and11forMainProgramMenudescription.
Display Use
Example of Parameter Adjustment
The cursor always begins in the upper left corner of the display and will be
blinking.Pressthe
Prg Esc
key to move the cursor down for parameter adjustment.
Once the cursor has reached the desired parameter, press the
Prg Esc
Prg Esc
keys to
adjust the value.
When satisfied with the adjustment, press the
Prg Esc
key to save the parameter.
Whenfinished,makecertainthecursorisintheupperleftcorner.Ifthecursor
is not in the upper left corner, the changes will not be saved. The cursor must
be in the upper left corner to enable screen advancement.
Supply air low limit
Alarm when supply is
below: 35.0º F
Alarm delay: 300s
Supply air low limit
Alarm when supply is
below: 32.0º F
Alarm delay: 300s
Supply air low limit
Alarm when supply is
below: 32.0º F
Alarm delay: 300s
8
DDC Controller for Tempered Air Products
®
Examples of Alarms
Ifanalarmoccurs,the
Prg Esc
buttonwillglowredonthecontrollerandtheremotedisplay(ifinstalled).
To view alarm, press the
Prg Esc
button once. This will display the most recent
alarm.Pressthe
Prg Esc
buttonagaintoresetthealarm.Ifthealarmcannotbe
cleared,thecauseofthealarmhasnotbeenfixed.Pressthe
Prg Esc
Prg Esc
buttons to
view any additional occurring alarms.
Thisisanexampleofanoutdoorairsensorfailure.
This screen appears if there are no active alarms.
To view all saved alarms, press the
Prg Esc
buttontoentertheDATALOGGER.For
moreinformation,seetheDataLoggermenu.
Examples of Alarms
OutdoorAirTemperature
Sensor Failure
Failure of outside air temperature sensor. Alarmonly
SupplyAirTemperature
Sensor Failure
Failure of supply air temperature sensor. Alarm&Shutdown
Cold Coil Temperature
Sensor Failure
Failure of after cooling coil air temperature sensor. Alarmonly
Room Temperature Sensor
Failure
Failure of room temperature sensor.
(IfUnoccupied-CycleOnRoomisenabled)
Alarmonly
Systemhasexceededthe
set number of run hours
The unit has been operating for a period longer than the
maintenance set point.
Alarmonly
Supply airflow Indicatesalossofairflowinthesupplyfan. Alarm&Shutdown
WheelPressure
-DirtyWheel/HighCFM
Indicatesabuildupofpressureacrosstheenergywheel. Alarmonly
Energyrecoverywheel
rotation. Check wheel.
Indicatesawheelrotationfailure. Alarmonly
ExhaustAirflow Indicatesalossofairflowintheexhaustfan. Alarm&Shutdown
FilterAlarm Indicatesabuildupofpressureacrossthefilters. Alarmonly
Acompressorlimitswitch
has tripped
Indicatesahighorlowrefrigerantpressureswitchhastripped. Alarmonly
Supply temperature low
limit alarm
Indicatesasupplyairtemperaturelowerthanthesupplylowlimit
set point.
Alarm&Shutdown
pCOe Offline IndicatescommunicationwithpCOeauxiliaryI/Ohasfailed. Alarmonly
pCOe-Analoginputprobe
on channel # disconnected
or broken
IndicatesananalogprobefailureonthepCOe.Checkintegrityof
auxiliaryI/Oanalogprobes.
Alarmonly
BuildingPressureSensor
Failure
Failure of building pressure sensor
Alarm&minimumfan
speed
DuctPressureSensor
Failure
Failure of duct pressure sensor
Alarm&minimumfan
speed
Room Humidity Sensor
Failure
Failure of room RH sensor Alarmonly
OutdoorAirHumidity
Sensor Failure
Failure of outdoor air humidity sensor Alarmonly
CO2 Sensor Failure Failure of CO2 sensor
Alarm&minimumfan
speed
Alarms
Press DOWN to review
current alarm(s).
Press ESC to exit.
Press ALARM to reset.
Alarms
No active alarm
Press ENTER
to DATA LOGGER
Outside Air Temperature
Sensor B01 Failure
9
DDC Controller for Tempered Air Products
®
Menu Overview
Press
Prg
Esc
to enter menus.
Main Menu
On/Off Unit
Setpoint
Clock/Scheduler Input/Output Data Logger Board Switch Service Manufacturer
Main Status Unit On/Off Supply Set Point Clock Analog Inputs Alarms Board Switch Set Information Configuration
Sensor Status Unit On/Off Control Room Temp Scheduler Enable Digital Inputs Information Unit Code
Sched. Override Occupancy Control Room Humidity Schedule(s) Digital Outputs Information2 Expansion I/O
Supply Fan Supply Reset Limits Holiday(s) Analog Outputs Overrides pLAN Comm
Exhaust Fan Supply Reset Energy Wheel Field Card Comm
Energy Wheel Supply Set BMS Wheel Preheat I/O Config
Cooling Status Temp Set Pt Source Cooling Analog Inputs
Heating Status Cold Coil Set Pt Heating Digital Inputs
OA Damper Heat Lockout Reheat Digital Outputs
Cool Lockout Supply Fan Analog Outputs
Dehumid Lockout Exhaust Fan Factory Settings
Econ Lockout OA Damper Economizer
Supply Low Limit I/O Manual Management Defrost Cycle
Defrost BMS Config Cooling Control
Unoccupied Cycle Protocol Compressors
Supply Fan VFD Modbus Digital Scroll
Exhaust Fan VFD BACnet MSTP Comp Timers
Duct Pressure BACnet TCP/IP Comp Staging
Building Pressure BACnet TCP/IP Heat Control
CO2 Set Point BACnet R/W Heater Reheat
OA Damper Set Point Unit BMS Control Heater Reheat 2
Unit BMS Control 2 Hot Gas Flush
Service Settings Hot Gas
Working Hours SA Reset Control
Maintenance Hours Heat/Cool Delay
Working Hours Damper Delay
Probe Adjustment Air Proving
Password/Default Fan Delay
Service Password Rotation Delay
Service Restore CO2 Control
Duct Pressure
Building Pressure
Temp Scale
Initialization
Manf Restore
Manf Password
Factory Restore
NOTE
Your controller may not show all menus
depending on unit configuration.
10
DDC Controller for Tempered Air Products
®
Menu Overview
Press
Prg
Esc
to enter menus.
Main Menu
On/Off Unit
Setpoint
Clock/Scheduler Input/Output Data Logger Board Switch Service Manufacturer
Main Status Unit On/Off Supply Set Point Clock Analog Inputs Alarms Board Switch Set Information Configuration
Sensor Status Unit On/Off Control Room Temp Scheduler Enable Digital Inputs Information Unit Code
Sched. Override Occupancy Control Room Humidity Schedule(s) Digital Outputs Information2 Expansion I/O
Supply Fan Supply Reset Limits Holiday(s) Analog Outputs Overrides pLAN Comm
Exhaust Fan Supply Reset Energy Wheel Field Card Comm
Energy Wheel Supply Set BMS Wheel Preheat I/O Config
Cooling Status Temp Set Pt Source Cooling Analog Inputs
Heating Status Cold Coil Set Pt Heating Digital Inputs
OA Damper Heat Lockout Reheat Digital Outputs
Cool Lockout Supply Fan Analog Outputs
Dehumid Lockout Exhaust Fan Factory Settings
Econ Lockout OA Damper Economizer
Supply Low Limit I/O Manual Management Defrost Cycle
Defrost BMS Config Cooling Control
Unoccupied Cycle Protocol Compressors
Supply Fan VFD Modbus Digital Scroll
Exhaust Fan VFD BACnet MSTP Comp Timers
Duct Pressure BACnet TCP/IP Comp Staging
Building Pressure BACnet TCP/IP Heat Control
CO2 Set Point BACnet R/W Heater Reheat
OA Damper Set Point Unit BMS Control Heater Reheat 2
Unit BMS Control 2 Hot Gas Flush
Service Settings Hot Gas
Working Hours SA Reset Control
Maintenance Hours Heat/Cool Delay
Working Hours Damper Delay
Probe Adjustment Air Proving
Password/Default Fan Delay
Service Password Rotation Delay
Service Restore CO2 Control
Duct Pressure
Building Pressure
Temp Scale
Initialization
Manf Restore
Manf Password
Factory Restore
11
DDC Controller for Tempered Air Products
®
The DDC controller will revert to a default main menu loop. This loop includes several screens to view the
operating conditions of the unit. Scroll through the menu screens by using the
Prg Esc
Prg Esc
keys. Screens with a
dashed line border are dependent upon an optional accessory and may not always appear.
The SenSor STaTuS Screen diSplayS real Time condiTionS from The SenSorS
locaTed in The uniT and The room (if inSTalled).
Main Menu Overview
TIMEDATEUNIT##
TAP v2.00 GWY1X000XXXX
STATUS LINE
TIMEDATEUNIT##
Supply Air: 000.0°F
Outside Air: 000.0°F
OA Humidity 00.0%
Cold Coil: 000.0°F
Room Temp: 000.0°F
Room Humidity: 00.0%
STATUS LINE
®
Supply fan STaTuS. (if equipped wiTh Vfd)
IfequippedwithasupplyfanVFD,thisscreenwilldisplaythesupplyfan
rampbeingsentfromthecontrollertotheVFD.Theminimumandmaximum
speedsaresetintheVFD(SeeunitInstallationandOperationManualforVFD
programming).Thecontrollercanmodulatethefanbetweentheminandmax
speeds via an analog output. This screen also displays the method of fan
control and the parameter it is controlling.
Possiblemethodsinclude:ConstantSpeed,DuctPressureControl,Building
PressureControl,andCO2Control.
The iniTial menu Screen diSplayS The program VerSion, uniT code and STaTuS
line. The STaTuS line diSplayS which mode The uniT iS in.
Possiblemodesinclude:
• InitialDelay • SysOn-Cooling
• OpeningDampers • SysOn-Dehumidifying
• ExhaustFanStarting • SysOn-Dehumid&Reheat
• SupplyFanStarting • Unoccupied-UnitOff
• SystemOn • Unoccupied-Heating
• DefrostModelActive • Unoccupied-Cooling
• SysOn-Econ+Cooling • ManualOverride
• SysOn-Economizer • RemoteOff
• SysOn-Heating • PressAlarmButton!!!
exhauST fan STaTuS. (if equipped wiTh Vfd)
IfequippedwithanexhaustfanVFD,thisscreenwilldisplaytheexhaustfan
rampbeingsentfromthecontrollertotheVFD.Theminimumandmaximum
speedsaresetintheVFD(SeeunitInstallationandOperationManualforVFD
programming).Thecontrollercanmodulatethefanbetweentheminandmax
speeds via an analog output. This screen also displays the method of fan
control and the parameter it is controlling.
Possiblemethodsinclude:ConstantSpeed,BuildingPressureControl,
OutdoorAirDamperTracking,andSupplyFanTracking.
Supply Fan Status
Supply Fan Ramp: 0%
(0%=Min Speed by VFD)
Duct Ps Control
Duct Pressure: 0.00”wc
STATUS LINE
ExhaustFanStatus
Exhaust Fan Ramp: 0%
(0%=Min Speed by VFD)
Building Ps Control
Building Ps: +.000”wc
STATUS LINE
energy recoVery wheel STaTuS. (if equipped)
Ifselectedwithapreheater,thestatuswillalsobedisplayed.
EnergyRecovery
Wheel: 100% Speed
Wheel Differential
Pressure Is: Normal
Preheater: OFF
STATUS LINE
12
DDC Controller for Tempered Air Products
®
cooling STaTuS iS diSplayed, along wiTh compreSSor operaTion. (if equipped)
This screen appears if a cooling option is provided.
Chilled Water:TheCoolingControl%isdirectlyproportionaltothe0-10VDC
output signal.
0%Cooling=0VDC
100%Cooling=10VDC
ThecoolingcontroloutputcanbeconfiguredtoDIRECT/REVERSEacting,
alongwiththeminimumandmaximumoutputvoltagesbyenteringthe
MANUFACTURER menu.
Packaged DX Cooling: The Cooling Control displays internal cooling ramp as
a percent. Compressor operation is displayed when engaged.
•D=DigitalScrollCompressorOperation
•1=FirstStagedCompressorOperation
•2=SecondStagedCompressorOperation
Heat Pump Cooling: The Cooling Control displays internal cooling ramp as a
percent. Compressor operation is displayed when engaged.
•1=FirstStagedCompressorOperation
•2=SecondStagedCompressorOperation
Cooling Status
Cooling Control: 000%
Compressor D 1 2
STATUS LINE
Heating Status
Heater Control: 000%
Hot Gas Reheat: 000%
Staged reheat is: ON
Compressor: 1 2
STATUS LINE
heaT and reheaT operaTion iS diSplayed. (if equipped)
Heater Control displays the proportional percentage of the heater analog
output.
Electric Heater:TheHeaterControl%isproportionaltothe0-10VDCsignal
being sent to the SCR controller, located in the electric heater control center.
0%Heating=0VDC-0kWoutput
100%Heating=10VDC-MaxkWoutput
Hot Water:TheHeaterControl%isproportionaltothe0-10VDCsignalbeing
senttotheheatingcontrolvalve(BYOTHERS).Theheatingcontroloutput
canbeconfiguredtoDIRECT/REVERSEacting,alongwiththeminimumand
maximumoutputvoltagesbyenteringtheMANUFACTURERmenu.
0%Heating=0VDC
100%Heating=10VDC
Indirect Gas:TheHeaterControl%isproportionaltothe0-10VDCsignal
being sent to the indirect gas furnace controller, located in the indirect gas
control center. The first stage is on at 1% Heater Control. The furnace will then
modulateproportionallyfromminimumtomaximumcapacity.
0%=0VDC–OFF
1%=0VDC–MINIMUMTURNDOWNENABLED
1-100%=0-10VDC=FURNACEMODULATION
Heat Pump Heating: The Heater Control % displays internal heating ramp as a
percent. Compressor operation is displayed when engaged.
•1=FirstStagedCompressorOperation
•2=SecondStagedCompressorOperation
Hot Gas Reheat:
If hot gas reheat is staged control:
“Stagedreheatis:ON/OFF”willindicateoperation.
If hot gas reheat is modulating bypass damper control:
0% = OFF
1%-100%=4-10VDC=AIRFLOWDAMPERMODULATION
If hot gas reheat is modulating valve control:
0% = OFF
1%-100%=0-10VDC=HOTGASREHEATVALVEMODULATION
13
DDC Controller for Tempered Air Products
®
ouTdoor air damper STaTuS. (if equipped wiTh modulaTing ouTdoor and
recirculaTed air damperS)
This screen will display the outdoor air damper position commanded by the
controllerandwhichmethodthedamperpositionisactivelyutilizing.
Possiblemethodsinclude:ActiveonMinimumOA%,ActiveonEconomizerand
ActiveonCO2.
Outdoor Damper Status
Damper Position: 50%
Active on Minimum OA%
CO2 Level: 0
ppm
STATUS LINE
14
DDC Controller for Tempered Air Products
®
A. On/Off Unit
The controller is equipped with several menus to help guide users with altering program parameters. The
following menus can be accessed by pressing the
Prg
Esc
key. To enter the desired menu, press the
Prg Esc
key.
The On/Off UnitmenuallowstheusertoviewthedetailedOn/Offstatusofthe
controller.
The unit ships from the factory in a disabled state. To allow the unit to operate,
thecontrollermustreceivearuncommandfromdigitalinputID4.Jumper unit
terminals R - G to allow the unit to operate.
ActualState:ThecontrollermaybeinfollowingOn/Offstates:
a. Unit On - Unit is ON, functioning normally.
b. OffbyALARM-UnitisOFFduetoanalarm.Viewalarmsbypressing
ALARMbutton.
c. OffbyPLAN-UnitisOFFbypLANnetwork.
d. Off by BMS - Unit is OFF by BMS command
e. OffbySCHEDULER-UnitisOFFbyinternalClock/Scheduler.
f. OffbyDIGITALINPUT(ID4)-UnitisOFFbydigitalinput4(ID4).
g. OffbyKEYPAD-UnitiscommandedOFFbythisscreen.
Change to (Switch Off/Switch On):EnablesusermanuallyturnunitOn/Offvia
display. Unit terminal Gmusthave24VACpowertoenabletheunit.
ThiS Screen allowS The uSer To adjuST which SySTem conTrolS The uniT
on/off STaTe.
Digital Input:DefaulttoYES.UnitterminalGmusthave24VACpowerto
enable the unit.
The user can also use the BMS or internal time clock to command the unit
On/Offstate.Ifschedulingisdesired,gototheClock/Schedulermenutoset
a schedule.
BMS:YESallowsBMStocontrolunitOn/Offstate.
Scheduler:YESallowsinternalscheduler(timeclock)forunitOn/Offcontrol.
Menus
UnitOn/Off
Actual state:
Off by DIG INPUT (ID4)
Change to: SWITCH ON
*Power ID4 to start…
UnitON/OFFControl
Enable unit OnOff
By digit input: Yes
By BMS: No
By Scheduler: Yes
Occupancy Control
Type: Unit OFF
Source: Input ID6
ThiS Screen diSplayS whaT The uniT will do in unoccupied mode.
Setting the Type to CycleSupplyFan will engage the unit to maintain space
temperature. However, a room temperature sensor must be wired between
controllerterminalsB4andBC4.Ifdesired,theSourceoffersthreeoptionsto
controloccupancy.ThefactorydefaultisterminalID6onthecontroller.
InputID6: Typically used with a remote time clock, motion sensor or switch
(default).
BMS: BMScontrol(seePointsList).BMScanbeoverriddenwithID6.
Time Clock: Internaltimeclock(Scheduler).SeeClock/Schedulermenufor
more information. The Scheduler can be overridden with digital
inputID6.
Without the room temperature sensor, the Type will be Unit Off, forcing the unit
off during unoccupied mode.
15
DDC Controller for Tempered Air Products
®
B. Setpoint
The Setpoint menu allows the user to view and adjust temperature related
parameters.
ThiS Screen diSplayS The currenT Supply air SeT poinT.
This screen does not appear if a BMS is directly setting the supply air set point.
This screen displays the current supply air set point, determined by the
controller. The supply set point is reset either by outdoor air temperature, or
room temperature if installed. The user may also directly control the supply air
set point. To activate the BMS set point capability, go to the Set Point Source
screen in this menu.
Ifaroomtemperaturesensorisconnectedtothecontroller,thesupplyair
temperatureisresettoachievetheroomtemperaturesetpoint.The“local”
roomtemperaturesetpointcanbesetviathecontroller(seeRoom Set Point
screen). Otherwise, the BMS can directly input the desired room set point. To
activate the BMS set point capability, go to the Set Point Source screen in this
menu.
ThiS Screen diSplayS The room Temp SeT poinT.
This screen only appears if a room sensor is wired into the controller.
Theunitwillresetthesupplyairtemperaturetomaintainthelocalsetpoint.If
a BMS is interfaced with the controller, the user has the capability to directly
inputthedesiredRoomTempSetPointthoughtheBMS.Thescreenwill
showaBMSsetpointandanActivesetpoint.Theactivesetpointistheroom
temperature the controller is currently trying to maintain.
ThiS Screen diSplayS The room relaTiVe humidiTy SeT poinT.
This screen only appears if a room relative humidity sensor is wired into the
controller.
The unit will reset the cold coil temperature set point to maintain the local
roomhumiditysetpoint.IfaBMSisinterfacedwiththecontroller,theuserhas
thecapabilitytodirectlyinputthedesiredRoomRelativeHumiditySetPoint
thoughtheBMS.ThescreenwillshowaBMSsetpointandanActivesetpoint.
The point source must be changed to BMS to allow BMS control.
SupplySetPoint
is currently = 60°F
This set pt is reset up/down
by the DDC
RoomTempSetPoint
Local set pt: 72.0°F
BMS set pt: 70.0°F
Active set pt: 70.0°F
RoomHumiditySetPoint
Local set pt: 55.0%
BMS set pt: 55.0%
Active set pt: 55.0%
Set Pt Source: LOCAL
ThiS Screen diSplayS The minimum and maximum Supply air TemperaTure
limiTS.
This screen only appears if the unit is connected to a room temperature sensor.
The supply air temperature will be controlled within the Supply Min and Supply
Maxlimitstomaintainroomtemperaturesetpoint.
SupplyResetLimits
Supply Min: 55.0°F
Supply Max: 90.0°F
16
DDC Controller for Tempered Air Products
®
TheSe parameTerS dicTaTe The operaTion of The ouTdoor air reSeT funcTion.
This screen does not appear when a room temp sensor is wired to the controller.
The controller monitors the outdoor air temperature and adjusts the desired
supplytemperatureaccordingly.Forexample,whentheoutdoorairisbelow
60°F,thecontrollerwillchangetheSupplysetpointto72°F.Iftheoutdoor
airisabove70°F,thecontrollerwillchangetheSupplysetpointto55°F.If
theoutdoorairtemperatureisbetween60°Fand70°F,theSupplysetpoint
changesaccordingtotheoutdoorairresetfunction.Avisualrepresentationof
the outdoor air reset function is shown below.
SupplyAirReset
Outside: Supply
60.0°F - - > 72.0°F
70.0°F - - > 55.0°F
Outdoor Air Reset Function
49°
55°
61°
67°
73°
55°60° 65°70° 75°
Supply Air Set Point (°F)
ThiS Screen diSplayS The Supply air SeT poinT aS SeT by a bmS.
This screen appears if the unit has BMS communications and set point source is
set to BMS.
See Set Point Source screen in this menu to allow BMS to determine set point.
The conTroller will lockouT cooling when The ouTdoor air TemperaTure iS
below The cooling lockouT SeT poinT. (facTory defaulT = 55°f)
This screen only appears if the unit the unit is equipped with cooling.
Thereisabuiltinhysteresisof2°Fwhichpreventsthecoolingfromshort
cycling. The hysteresis is similar to a dead-band above and below the lockout
setpoint.(Example:IfLockout=55°F,coolingislockedoutbelow53°Fand
enabledabove57°Foutsideairtemperature.)
The conTroller will lockouT heaTing when The ouTdoor air TemperaTure iS
aboVe The heaTing lockouT SeT poinT. (facTory defaulT = 70°f)
This screen only appears if the unit the unit is equipped with heating.
Thereisabuiltinhysteresisof2°Fwhichpreventstheheatingfromshort
cycling. The hysteresis is similar to a dead-band above and below the lockout
setpoint.(Example:IfLockout=70°F,heatingislockedoutabove72°Fand
enabledbelow68°Foutsideairtemperature.)
ThiS Screen diSplayS The TemperaTure SeT poinTS for The cooling coil.
This screen only appears if the unit is equipped with cooling.
The Normal mode set point is the after coil temperature the unit will maintain
understandardoperation,whenincooling.Ifahumidistatwasprovided
with the unit, the Dehumidify set point is the temperature the cooling coil will
dischargeonacallfordehumidification.TheActivesetpointisthecoolingcoil
discharge temperature the unit is currently trying to maintain.
Supply Set From BMS
BMS interface: ##.#°F
Set pt min: 55.5°F
Set pt max: 90.0°F
ColdCoilSetPoint
Normal Mode: 55.0°F
Dehumidify: 50.0°F
Active set pt: 55.0°F
HeaterLockout
Lockout heater when outside
above: 70.0°F
Hysteresis: 2.0°F
CoolingLockout
Lockout cooling when outside
below: 55.0°F
Hysteresis: 2.0°F
17
DDC Controller for Tempered Air Products
®
economizer lockouT preVenTS The uniT from going inTo economizer mode
when The ouTdoor air condiTionS are Too cold.
This screen only appears if economizer was provided with the unit.
Thelockoutpreventsoutdoorairfrom:(1)enteringthespaceattoocoldofa
temperatureor(2)enteringheatingorcoolingcoilsatconditionsthatcould
freezethecoils.Built-inhysteresisof2°F.Thehysteresisissimilartoadead-
band above and below the lockout set point. Example:IfLockout=40°F,
economizerislockedoutbelow38°Fandenabledabove42°Foutsideair
temperature.)
ThiS Screen diSplayS The TemperaTure difference aT which The
dehumidificaTion mode iS locked ouT. (facTory defaulT = 10°f)
This screen only appears if the unit is equipped with cooling.
This setting prevents the unit from operating in dehumidification mode when the
outdoor air conditions are relatively cool. Example:Ifthecoldcoilsetpointis
55°F,dehumidificationmodecannotoperateuntiltheoutdoorairisatleast65°F.
Dehumidification lock
Lockout dehumidification until
outside air is 10.0°F above
cold coil set point.
EconomizerLockout
Lockout economizer if
outdoor air is:
Below: 40.0°F [Dry Bulb]
Above: 75.0°F [Dry Bulb]
Above: 55.0°F [Dew PT]
Differential 2.0°F
ThiS Screen diSplayS The room SeT poinTS for heaTing and cooling operaTion
during unoccupied mode.
This screen only appears if the unoccupied mode is set to “Cycle on Room”
instead of “Unit Off”. A room temp sensor must be wired into the controller. For
energy recovery units, a Night Set-Back Damper must be installed.
InunoccupiedmodewhenthetemperaturefallsbelowtheroomHeatingset
point,thesupplyfanandheatingwillturnon.IftheunitisanEnergyRecovery
unit, the Night Set-Back Damper will also open. The unit will discharge the
SupplyMaxtemperaturepertheSupplyResetLimitsscreen,untiltheroom
set point is satisfied. Unit will then shut down. When the temperature rises
above the Cooling set point, the unit will discharge the Supply Min temperature
pertheSupplyResetLimitsscreenuntiltheroomtemperaturesetpointis
satisfied. Unit will then shut down.
The differential acts as a hysteresis to keep the heating and cooling from
cyclingtoooften.Forexample,onacallforheating,theunitturnsonat60°F
andturnsoffat65°F.Forcooling,theunitturnsonat85°Fandturnsoffat80°F.
ThiS Screen diSplayS The TemperaTure aT which The uniT will enable froST
conTrol mode if neceSSary. (facTory defaulT = 5°f)
This screen only appears if the unit has an energy recovery wheel and a frost
control method was provided with the unit.
Upon sensing a high differential pressure across the energy wheel, the unit will
go into defrost if the outside air temperature is below this temperature setting.
ThiS Screen diSplayS The low Supply air TemperaTure limiT.
IftheunitsupplyairtemperaturefallsbelowSupplyAirLowLimitforaperiod
ofAlarmDelay,theunitwillshutdownandanalarmwillbesignaled.The
purpose of the supply low limit is to protect the building and contents from
coldsupplyair.ItisNOTdesignedtoprotecttheair-handlingunit.
Iftheunitdoesnothavechilledwater(CW)orhotwater(HW)coils,itshould
notneedadditionalprotectionfromfreezing.IftheunitdoeshaveCWorHW
coils,fieldprovidedcoilfreezeprotectionmaybenecessary.
Supply air low limit
Alarm when supply is
below: 35.0°F
Alarm delay: 300s
Defrost
Allow wheel defrost
mode when outside
is below: 05.0°F
UnOcc Fan Cycle Setup
Unit will energize to maintain
unocc room set points.
Heating: 65.0°F
Cooling: 80.0°F
Differential: 5.0°F
uSerS can chooSe eiTher The conTroller or The bmS To deTermine Supply
air TemperaTure SeT poinT during operaTion.
This screen only appears if the controller was supplied with BMS capability.
Localmeansthecontrollersetpointwillbeusedduringoperation.(OutdoorAir
Reset or Room Reset)
BMS means that the BMS set point will be used during operation.
TempSetPointSource
Use local set point, or BMS
interface set point? Local
18
DDC Controller for Tempered Air Products
®
ThiS Screen diSplayS The Supply fan Speed SeT poinTS.
This screen only appears if equipped with a supply fan VFD controlled by
microprocessor.
TheSpeedSetPointistheproportionalpercentageoftheanalogoutputfrom
thecontrollertotheVFD.
0%Speed=MinSpeed(determinedbyVFD)
100%Speed=MaxSpeed(determinedbyVFD)
(SeeunitInstallationandOperationManualforVFDprogramming).
Set point source must be changed to BMS to allow BMS control.
ThiS Screen diSplayS The exhauST fan Speed SeT poinTS.
This screen only appears if equipped with an exhaust fan VFD controlled by
microprocessor.
TheSpeedSetPointistheproportionalpercentageoftheanalogoutputfrom
thecontrollertotheVFD.
0%Speed=MinSpeed(determinedbyVFD)
100%Speed=MaxSpeed(determinedbyVFD)
(SeeunitInstallationandOperationManualforVFDprogramming).
Set point source must be changed to BMS to allow BMS control.
ThiS Screen diSplayS The ducT preSSure SeT poinT.
This screen only appears if equipped with a duct pressure sensor.
The unit will modulate the supply fan to maintain the local duct pressure set
point.
Set point source must be changed to BMS to allow BMS control.
ThiS Screen diSplayS The building preSSure SeT poinT.
This screen only appears if equipped with a building pressure sensor.
Dependingonunitconfiguration,theunitwilleithermodulatetheexhaustor
supply fan to maintain the local building pressure set point.
Set point source must be changed to BMS to allow BMS control.
ThiS Screen diSplayS The co2 SeT poinT.
This screen only appears if equipped with a CO2 sensor.
Depending on unit configuration, the unit will either modulate the supply fan or
outdoor air damper to maintain the CO2 set point.
Set point source must be changed to BMS to allow BMS control.
ThiS Screen diSplayS The ouTdoor air damper SeT poinT.
This screen only appears if equipped with a modulating outdoor air and
recirculating damper.
When the unit is operating in the Occupied mode, the outdoor air dampers
willremainattheOutdoorAir(OA)MinPosition.IfequippedwithCO2control
ormodulatingeconomizer,theoutdoorairdampermaymodulateopenpast
theOAMinPosition.Tolimitthemaximumopenposition,adjusttheOAMax
Positiontothedesiredlimit.
SetPtSourcemustbechangedtoBMStoallowBMScontroloftheOAMin
Position.ThedamperwillmodulateopenpasttheOAMinPositionifequipped
withCO2controlormodulatingeconomizer.
SupplyFanSpeedSetPt
Local set pt: 30%
BMS set pt: 0%
Active set pt: 30%
Set pt source: LOCAL
ExhaustFanSpeedSetPt
Local set pt: 30%
BMS set pt: 0%
Active set pt: 30%
Set pt source: LOCAL
DuctPressureSetPt
Local set pt: 0.25”wc
BMS set pt: 0.00”wc
Set pt source: LOCAL
Duct Ps: 0.00”wc
BuildingPressSetPt
Local set pt: +.050”wc
BMS set pt: +.000”wc
Set pt source: LOCAL
Building Ps: +.000”wc
CO2SetPoint
Local set pt: 1000ppm
BMS set pt: 1000
ppm
Set pt source: LOCAL
CO2 Levels: 0
ppm
OADamperSetPoint
OA Min Position: 50%
BMS set pt: 50%
Active set pt: 50%
Set pt source: LOCAL
OA Max Position: 100%
19
DDC Controller for Tempered Air Products
®
E. Data Logger
The clock Screen allowS The uSer To adjuST The Time and daTe.
ThiS Screen allowS The uSer To SeT holiday daTeS (if enabled).
This screen only appears if Holidays are enabled.
The internal time clock will go into unoccupied mode as long as the date is
equaltotheholidaydate(alwaysa24hourperiod).
ThiS Screen allowS The uSer To adjuST ScheduleS.
This screen only appears if a Schedule was added in the screen above.
Theprogramsupportsuptosevenseparateschedules.Eachschedulewill
require the user to enter a Time On, Time Off and which days the schedule is
applicable for.
ThiS Screen allowS The uSer To add The number of unoccupied ScheduleS
and holidayS.
The Number of Schedules corresponds to the number of unoccupied periods
the user wishes to add. By setting the number of schedules to a value greater
thanzero,theunoccupiedmodewillautomaticallybesettotimeclock.
Aholidayisasingleoccurrenceinwhichyouwouldliketheunittobe
unoccupiedfor24hours.Amaximumof15holidayscanbeset.Holidaysmust
be reconfigured each year.
TomanuallycontrolI/Ovalues,gototheService menu > Overrides.
Similar screens appear for all controller inputs and outputs.
Your controller may not utilize all of the inputs and outputs shown. See
unit wiring diagram for your specific configuration.
ThiS Screen iS an example of a recorded alarm.
The unit conditions are displayed for past alarm events. The date, time,
temperatures and unit status are recorded.
To clear recorded alarms, press
Prg
Esc
and
Prg
Esc
simultaneously.
Scheduler
Schedule #: #
Time On: 07:00
Time Off: 05:00
Days Enabled: MTWTFSS
Holiday #1
Month: MM
Day: DD
Unoccupied for 24 hrs
AnalogInput
Outside Temperature
Input B01: 75.0°F
13:21:04 MM/DD/YY
OA Sensor
Room T: 70.0
Discharge T: 65.0
Outside Air T: -623.3
Cold Coil T: 55.0
System Off
C. Clock/Scheduler
D. Input/Output
The Clock/Scheduler menu allows the user to view and alter the time and date.
The user can also add up to seven schedules for occupancy requirements.
Clock
Day: Monday
Date: MM/DD/YY
Hour: 15:30
Scheduler
Number of schedules: 0
Holidays
Holiday = unoccupied mode
for 24 hours.
Number of Holidays: 0
The Input/Output menu allows the user to quickly view the status of the controller
inputs and outputs.
The Data Logger menu allows the user to view past alarms.
20
DDC Controller for Tempered Air Products
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Greenheck 474894 Microprocessor Controller TAP v2.00 November 2011 Operating instructions

Greenheck
Brand
Greenheck
Model
474894 Microprocessor Controller TAP v2.00 November 2011
Type
Operating instructions
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