tekmar 552 Installation guide

tekmarNet

®

Thermostat 552

Installation & Operation Manual

552_D

09/14

Zoning

Replaces: 08/11

552_D - 09/14

1 of 44

A Watts Water Technologies Company

The tekmarNet

®

Thermostat 552

provides operation for:

One Stage Heat•

Introduction

Features

Touchscreen

Bright Backlight

tekmarNet

®

Communication

Outdoor Temperature Display

Floor Temperature Display

7-Day, 4 Event Programmable

Schedule

Optimum Start

Scenes

Away Key

Air Group Member

Freeze Protection

Exercise Pump or Valves

Zone Synchronization

Two Auxiliary Sensor Inputs

•

Beneﬁ ts

Simple to Use

Increased Comfort Through

Precise Temperature Control

Conserves Energy

Convenience Through Internet

Connectivity

Warm Radiant Floors

Protects Radiant Floors From

Over Heating

•

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A Watts Water Technologies Company

Table of Contents

Getting Started ...................................................................................................4

Installation ..............................................................................................................4

Preparation .........................................................................................................4

Removing The Thermostat Base .......................................................................5

Mounting The Thermostat Base .........................................................................5

Thermostat Wiring ..............................................................................................6

Compatible Sensors ...........................................................................................7

Testing the Thermostat Wiring ...........................................................................8

Mounting the Thermostat ................................................................................. 10

Cleaning the Thermostat .................................................................................. 10

Switch Settings ......................................................................................................11

User Interface ....................................................................................................... 12

Home Screen ................................................................................................... 12

Symbols Description ........................................................................................ 12

Programmable Settings ........................................................................................ 13

Programming Menus ........................................................................................ 13

Set Temp Menu ................................................................................................ 14

Time Menu ....................................................................................................... 17

Schedule Menu ................................................................................................ 19

Display Menu ................................................................................................... 20

Scenes Menu ................................................................................................... 21

Monitor Menu ...................................................................................................22

Toolbox Menu ................................................................................................... 24

Setup Menu ...................................................................................................... 27

Sequence of Operation ......................................................................................... 29

Heating Operation ............................................................................................29

Air Group Operation ......................................................................................... 31

Time Clock ....................................................................................................... 31

Temperature Adjustment .................................................................................. 32

Programmable Schedules ................................................................................33

Scenes (System Override) ...............................................................................34

Secondary Temperature Display ............................................................................... 35

Access Levels .................................................................................................. 36

tekmarNet

®

Address .........................................................................................36

Screen Clean Menu ......................................................................................... 36

Troubleshooting .................................................................................................... 33

Error Messages ................................................................................................ 37

Frequently Asked Questions ............................................................................ 42

Technical Data .................................................................................................43

Limited Warranty and Product Return Procedure ............................................44

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It is your responsibility to ensure that this thermostat is safely installed according

to all applicable codes and standards. tekmar is not responsible for damages

resulting from improper installation and/or maintenance.

Important Safety Information

This is a safety-alert symbol. The safety alert symbol is shown alone

or used with a signal word (DANGER, WARNING, or CAUTION),

a pictorial and/or a safety message to identify hazards.

When you see this symbol alone or with a signal word on your

equipment or in this Manual, be alert to the potential for death or

serious personal injury.

This pictorial alerts you to electricity, electrocution, and shock

hazards.

This symbol identifies hazards which, if not avoided, could result

in death or serious injury.

This symbol identifies hazards which, if not avoided, could result

in minor or moderate injury.

This symbol identifies practices, actions, or failure to act which

could result in property damage or damage to the equipment.

Read Manual and all product labels BEFORE using the

equipment. Do not use unless you know the safe and

proper operation of this equipment. Keep this Manual

available for easy access by all users. Replacement

Manuals are available at tekmarControls.com

It is the installers responsibility to ensure that this thermostat is safely installed

according to all applicable codes and standards.

Improper installation and operation of this thermostat could result in damage to the

equipment and possibly even personal injury or death.

This thermostat is not intended for use as a primary limit control. Other controls that

are intended and certified as safety limits must be placed into the control circuit.

•

Do not attempt to service the thermostat. There are no user serviceable parts inside

the thermostat. Attempting to do so voids warranty.

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A Watts Water Technologies Company

Congratulations on the purchase of your new tekmar thermostat.

This manual will step through the complete installation, programming and sequence

of operation for this control. At the back, there are tips for control and system

troubleshooting.

Getting Started

Preparation

tekmar or jeweller screwdriver

Phillips head screwdriver

•

Wire Stripper•

Tools Required

------------------------------------------------------

Materials Required

--------------------------------------------------

18 AWG LVT Solid Wire

(Low Voltage Connections)

•

Installation

Choose the placement of the thermostats early in the construction process to

enable proper wiring during rough-in.

Installation Location

-------------------------------------------------

Consider the following:

Interior Wall.

Keep dry. Avoid potential leakage onto the control.

Relative Humidity less than 90%. Non-condensing environment.

No exposure to extreme temperatures beyond 32-122°F (0-50°C).

No draft, direct sun, or other cause for inaccurate temperature readings.

Away from equipment, appliances, or other sources of electrical

interference.

Easy access for wiring, viewing, and adjusting the display screen.

Approximately 5 feet (1.5 m) off the finished floor.

The maximum length of wire is 500 feet (150 m).

Strip wire to 3/8" (10 mm) for all terminal connections.

Use standard 8 conductor, 18 AWG wire.

•

To prevent the risk of personal injury and/or death, make sure power

is not applied to the thermostat until it is fully installed and ready for

final testing. All work must be done with power turned off to the circuit

being worked on.

Please be aware local codes may require this thermostat to be installed

or connected by an electrician.

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A Watts Water Technologies Company

Removing The Thermostat Base

To remove the thermostat base:

Locate the tab on the bottom of the

thermostat.

Push the tab with either your thumb or

with a screwdriver.

Lift the thermostat front away from the

thermostat’s base.

•

Mounting The Thermostat Base

3

1

/4”

(83 mm)

Thermostat

Front

Thermostat

Base

Stud

Gang

Box

If a single gang box is used:

Feed the wiring through the large

hole of the thermostat base.

Fasten the base of the thermostat

to the gang box.

Terminate wiring to the wiring

strip.

Push the thermostat front onto

the thermostat base.

•

Wall

Stud

Thermostat

Front

Thermostat

Base

If a gang box is not used:

Feed the wiring through the large

hole in the thermostat base.

Mount the thermostat base

directly to the wall.

Use screws in the screw holes

to fasten the thermostat to the

wall. At least one of the screws

should enter a wall stud or

similar rigid material.

Terminate wiring to the wiring

strip.

Push the thermostat front onto

the thermostat base.

•

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A Watts Water Technologies Company

Thermostat Wiring

The thermostat operates a single heating system zone and can be wired in four

different ways.

tekmarNet

®

2 - Allows the thermostat to be wired point-to-point using 2 wires to a

tekmarNet

®

2 Wiring Center, House Control, or Zone Manager. This allows easy

wiring for retrofit applications.

tekmarNet

®

4 - Allows the thermostat to be wired using 4 wires to a tekmarNet Wiring

Center or Zone Manager point-to-point. Alternatively, the thermostat can operate

heating equipment locally and the tN4 communication bus can be daisy-chained

from one thermostat to another.

Stand Alone

- Simple 3 wire connection to a 24 V (ac) transformer and zone valve.

Stand Alone - Simple 3 wire connection to a switching relay or zone valve control.

Wiring - tekmarNet

®

2

-------------------------------------------------

Wiring - tekmarNet

®

4

-------------------------------------------------

tN2 tN2

C

tN2

tN4

tN2

R

Rh W1

No Power

S1 S2

Com

tN2 Wiring Center

tN2 House Control

tN2 Zone Manager

Optional Sensor 1

Optional Sensor 2

C

tN2

tN4

tN2

R

Rh W1

No Power

S1 S2

Com

tN4 C W

R

Optional Sensor 1

Optional Sensor 2

Install field jumper

wire R to Rh

tN4 Wiring Center

tN4 Zone Manager

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Wiring - Stand Alone to Transformer and Zone Valve

-------------------

C

tN2

tN4

tN2

R

Rh W1

No Power

S1 S2

Com

R

C

L

N

Optional Sensor 1

Optional Sensor 2

Install field jumper

wire R to Rh

Zone Valve

24 V (ac)

transformer

Wiring - Stand Alone to Switching Relay or Zone Valve Control

---------

W

(T)(T)

R

24 V

W

(T)(T)

R

HNXX HNHN NL

Com

Switching Relay

Zone 1 Zone 2 Zone 3

W

(T)(T)

R

C

tN2

tN4

tN2

R

Rh W1

No Power

S1 S2

Com

Optional Sensor 1

Optional Sensor 2

Zone Pump

N

L

Compatible Sensors

The thermostat is compatible with Indoor Sensor type 076, 077, 084, Floor Sensor type

072, 073, 079, and Outdoor Sensor type 070.

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A Watts Water Technologies Company

Testing the Power

If the thermostat display turns on, this indicates that the thermostat is operating

correctly and there are no electrical issues. In the event that the display is off, or the

display is cycling on and off:

1. Remove the thermostat front.

2. Use an electrical meter to measure DC voltage between the tN2 terminals.

If the DC voltage is 0 V (dc) for at least 20 seconds, then there is an open or short

circuit in the tN2 wires.

If the DC voltage is 0 V (dc) for 10 seconds and then is 23 to 24 V (dc) for 5 seconds,

this indicates the wiring is correct.

3. Connect the thermostat to the tN2 wires connected to a zone on a House Control,

Wiring Center, or Zone Manager.

4. If the thermostat display is off, or is cycling on and off, move the thermostat to the

next available zone on the House Control, Wiring Center, or Zone Manager.

If the thermostat display remains permanently on, there may be a fault with the

previously tried zone on the House Control, Wiring Center, or Zone Manager.

If the thermostat display continues to be off, or is cycling on and off, there may be

a fault on the thermostat.

If a fault is suspected, contact your tekmar sales representative for assistance.

Testing the Heat Zone Output Wiring

1. Touch the button and set the heating temperature above the current room

temperature. Make sure the display does not show “WWSD” or “Floor Max”.

2. When the “Heat On” symbol appears on the display, use an electrical meter to

check for voltage on the House Control, Wiring Center, or Zone Manager relay.

The voltage is 24 V (ac) for zone valves, and 120 V (ac) for zone pumps when

operating correctly.

•

Testing the Thermostat Wiring

Testing tekmarNet

®

2 Wiring

------------------------------------------

Only qualified personnel should perform testing procedures. A licensed electrician

is recommended.

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A Watts Water Technologies Company

Testing the Power

1. Remove the front cover from the thermostat.

2. Use an electrical test meter to measure (ac) voltage between the R and C terminals.

The reading should be 24 V (ac) +/– 10%.

3. Install the front cover.

Testing the Heat Relay

1. Remove the front cover from the thermostat.

2. Touch the button and set the heating temperature below the current room

temperature. There should be no “Heat On” symbol on the display.

3. Set the electrical test meter to continuity.

4. Place electrical meter probes between R and W. There should be no continuity. If

there is continuity then there may be a wiring fault or the relay may be faulty.

5. Touch the button and set the heating temperature above the current room

temperature. Make sure the display does not show “WWSD”. The “Heat On” symbol

should appear on the display.

6. There should now be continuity between the R and W terminals.

Testing the tekmarNet

®

4 Bus Wiring

The symbol is shown on the display when communication is present. If the

thermostat is connected in a network and the communication is missing, there may

be an open or short circuit on the tN4 and C bus wires.

1. Remove the front cover from the thermostat.

2. To test for short circuits:

Disconnect the tN4 bus wires on one end.

Install wire nuts on each wire to ensure the wire ends are not touching.

Disconnect the tN4 bus wires on the other end.

Measure for continuity using an electrical meter.

If continuity is present, there is a short circuit fault along the wires. It is recommended

to replace the tN4 bus wires.

3. To test for open circuits:

Disconnect the tN4 bus wires on one end and connect them together.

Disconnect the tN4 bus wires on the other end.

Use an electrical meter to measure for continuity.

If there is no continuity, there is an open circuit fault along the wires. It is recommended

to replace the tN4 bus wires.

•

Testing tekmarNet

®

4 and Stand Alone Wiring

---------------------------

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A Watts Water Technologies Company

Mounting the Thermostat

Push the thermostat front onto

the thermostat base. Installation

is now complete.

Thermostat

Front

Push

Thermostat

Base

The thermostats’s exterior can be cleaned using a damp cloth. Moisten the cloth

with water and wring out prior to wiping the control. Do not use solvents or cleaning

solutions.

Cleaning the Thermostat

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A Watts Water Technologies Company

Switch Settings

Switch

Position

Action

1

ON

LOCK ACCESS LEVEL

Thermostat is locally locked and the access level cannot be changed.

Set to Lock when installation has been completed.

OFF

UNLOCK ACCESS LEVEL

Thermostat is unlocked and the access level may be changed. Go to

the Toolbox menu to change the access level. Set to Unlock during

the installation process.

Note: tekmarNet

®

system controls include a Global Lock that locks all

connected thermostats. Set the tekmarNet

®

system control to unlock

to allow access level adjustment on all connected thermostats.

tNt 552

One Stage Heat

Mmm YYYY

Lot # 12345

Meets Class B:

Canadian ICES

FCC Part 15

Power: 24 V ±10% 50/60 Hz 1.7 VA

Relay: 24 V (ac) 2 A

1051-03

Switch Settings:

Use at least 75°C conductors

For instructions see brochure

Designed and

assembled in Canada

Setback

Scene

None

ON

Cool Master 1

Oﬀ

Unlock

123

/

tekmarNet

Thermostat 552

One Stage Heat

Mmm YYYY

Lot # 12345

Meets Class B: ICES & FCC Part 15

Power: tN2 or 24 V (ac) ±10% 1.8 VA

Relay: 24 V (ac) 2 A

1051-03

Switch

Settings

www.tekmarcontrols.com

Designed and assembled in Canada

Lock

Unused

Unlock

/

ON

1

2

Back of

Thermostat

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A Watts Water Technologies Company

HEAT ON

Heat is turned on.

SUN

Operating at the occupied (day)

temperature.

MOON

Operating at the unoccupied

(night) temperature.

tekmarNet

®

Communication is present.

WARNING SYMBOL

Indicates an error is present.

ARROWS

Adjust the displayed setting.

SCENE AWAY

Operating at Away temperature.

TEMPORARY HOLD

Hold for 3, 6, 9 or 12 hours.

WWSD

Warm Weather Shut Down.

COOL

Cooling system is on.

MIN or MAX

Reached the room min or max.

MIN FL or MAX FL

Reached the floor min or max.

Home Screen

Symbols Description

User Interface

Adjust

the Time.

Adjust the

Schedule.

Display the

Floor or Outdoor

temperature.

Away Key.

Turn the

Heat on

or Off.

Home Button.

Return to the ‘Home’

Screen from any menu.

Press and hold for 3

seconds to access the

programming menus.

Adjust the Temperature.

Room

Temperature.

The touchscreen of the 552 provides one touch access to these settings.

Home

Button

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A Watts Water Technologies Company

Programmable Settings

Press and hold the Home button for 3 seconds to enter the programming menus.

The thermostat returns to the last programming menu previously used.

Programming Menus

Select a Programming Menu

-----------------------------------------

Touch “NEXT” to advance (clockwise in above illustration) to the next menu.

Touch “BACK” to go backwards (counterclockwise in above illustration) through

the menus.

Touch “ENTER” to enter a menu.

Setting Items

--------------------------------------------------------

Touch or arrow to adjust the setting if required.

Touch “NEXT ITEM” to advance to the next item within the menu.

Touch “BACK ITEM” to go backwards to the previous item within the menu.

To return to the parent menu after changing a setting, press and release the

home button.

To return to the home screen, press and release the home button twice or wait

30 seconds to automatically return to the home screen.

•

Press and

hold for 3

seconds to

access the

programming

menus.

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A Watts Water Technologies Company

Set Temp Menu (1 of 3)

Setting Display

SET HEAT ROOM

Set the room heating temperature during the

event.

Room

Access Level: Installer, User Range: 40 to 95°F (4.5 to 35.0°C)

Conditions: Room Sensor set to ON or Sensor 1 or

Sensor 2 set to Room.

Default: 70°F (21.0°C)

SET HEAT ROOM

Set the room heating temperature during the

event.

Room

Access Level: Installer, User Range: 40 to 95°F (4.5 to 35.0°C)

Conditions: Room Sensor set to ON or Sensor 1 or

Sensor 2 set to Room, and Schedules are in use

or Scenes are set to All or Guest.

Default: 65°F (18.5°C)

SET HEAT ROOM AWAY

Set the room heating temperature during the Away

scene.

Room

Access Level: Installer, User Range: 40 to 95°F (4.5 to 35.0°C)

Conditions: Room Sensor set to ON or Sensor 1 or

Sensor 2 set to Room, and Scenes is set to Away,

All or Guest.

Default: 62°F (16.5°C)

ROOM MAX

Set the maximum room heating limit while in the

event.

Access Level: Installer Range: 40 to 95°F (4.5 to 35.0°C)

Conditions: Room Sensor set to ON or Sensor 1 or

Sensor 2 set to Room.

Default: 85°F (29.5°C)

ROOM MAX

Set the maximum room heating limit while in the

event.

Access Level: Installer Range: 40 to 95°F (4.5 to 35.0°C)

Conditions: Room Sensor set to ON or Sensor 1 or

Sensor 2 set to Room, and Schedules are in use

or Scenes are set to All or Guest.

Default: 85°F (29.5°C)

SET HEAT FLOOR

Set the floor heating temperature while in the

event.

Floor

Access Level: Installer, User Range: 40 to 122°F (4.5 to 50.0°C)

Conditions: Room Sensor set to OFF and Sensor

1 or Sensor 2 set to Floor.

Default: 72°F (22.0°C)

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A Watts Water Technologies Company

Setting Display

SET HEAT FLOOR

Set the floor heating temperature while in the

event.

Floor

Access Level: Installer, User Range: 40 to 122°F (4.5 to 50.0°C)

Conditions: Room Sensor set to OFF and Sensor

1 or Sensor 2 set to Floor, and Schedules are in

use or Scenes are set to All or Guest.

Default: 65°F (18.5°C)

WARM WEATHER SHUT DOWN

Set the outdoor air temperature at which heating is

suspended during the event.

Access Level: Installer

Range: CTRL (control), 40 to

100°F (4.5 to 38.0°C), OFF

Conditions: Always available Default: CTRL

WARM WEATHER SHUT DOWN

Set the outdoor air temperature at which heating is

suspended during the event.

Access Level: Installer

Range: CTRL (control), 40 to

100°F (4.5 to 38.0°C), OFF

Conditions: Requires that Schedules are in use or

Scenes is set to All or Guest.

Default: CTRL

FLOOR MINIMUM

Set the floor heating temperature while in the

event.

Access Level: Installer, User

Range: OFF, 40 to 122°F (4.5 to

50.0°C)

Conditions: Sensor 1 or Sensor 2 set to Floor, and

either Room Sensor set to ON, or Room Sensor

set to OFF while Sensor 1 or 2 is set to Room.

Default: 72°F (22.0°C)

FLOOR MINIMUM

Set the floor heating temperature while in the

event.

Access Level: Installer, User

Range: OFF, 40 to 122°F (4.5 to

50.0°C)

Conditions: Sensor 1 or Sensor 2 set to Floor, and

either Room Sensor set to ON, or Room Sensor

set to OFF while Sensor 1 or 2 is set to Room,

Schedules are in use or Scenes are set to All or

Guest.

Default: OFF

Set Temp Menu (2 of 3)

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A Watts Water Technologies Company

Setting Display

FLOOR MAXIMUM

Set the floor maximum temperature in order to

protect the floor covering.

Suggested settings:

Tile = 90°F (32°C)

Hardwood Floor = 85°F (29°C)

Access Level: Installer

Range: 40 to 122°F (4.5 to

50.0°C), OFF

Conditions: Sensor 1 or Sensor 2 set to Floor, and

either Room Sensor set to ON, or Room Sensor

set to OFF while Sensor 1 or 2 is set to Room, and

Schedules or Scenes are in use.

Default: 85°F (29.5°C)

TEMPORARY HOLD

Temperature adjustment in the home menu can

result in either permanent temperature setting

change or temporary temperature setting change

that lasts 3, 6, 9, 12 hours or until the next sched-

uled event.

Access Level: Installer Range: OFF or ON

Conditions: None Default: OFF

Set Temp Menu (3 of 3)

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A Watts Water Technologies Company

Time Menu (1 of 2)

Setting Display

MINUTE

Select the current time minutes.

Access Level: Installer, User Range: 00 to 59

Conditions: Schedule is used or Clock is set to ON. Default: 00

HOURS

Select the current time hours.

Access Level: Installer, User Range: 12 AM to 11 PM or 00 to 23

Conditions: Schedule is used or Clock is set to ON. Default: 12 AM

DAY OF WEEK

Select the current day of the week.

Access Level: Installer, User

Range: Sunday, Monday, Tuesday,

Wednesday, Thursday, Friday,

Saturday

Conditions: Schedule is used or Clock is set to ON. Default: Sunday

MONTH

Select the current month.

Access Level: Installer, User Range: JANUARY to DECEMBER

Conditions: Schedule is used or Clock is set to ON. Default: JANUARY

DAY OF MONTH

Select the day of the current month.

Access Level: Installer, User Range: 1 to 31

Conditions: Schedule is used or Clock is set to

ON.

Default: 1

YEAR

Select the current year.

Access Level: Installer, User Range: 2014 to 2255

Conditions: Schedule is used or Clock is set to ON. Default: 2014

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A Watts Water Technologies Company

Time Menu (2 of 2)

Setting Display

DAYLIGHT SAVINGS TIME

Select if daylight savings time is observed.

Access Level: Installer, User Range: OFF or ON

Conditions: Clock setting is set to ON. Default: ON

TIME MODE

Select either 12 or 24 hour time format.

Access Level: Installer, User Range: 12 or 24 hour

Conditions: Clock setting is set to ON. Default: 12 hour

CLOCK

Select whether or not to show the time clock on

the display.

Access Level: Installer, User Range: OFF or ON

Conditions: The time is always shown when a

schedule is used and the clock setting option is no

longer available.

Default: OFF

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A Watts Water Technologies Company

Schedule Menu (1 of 2)

Setting Display

EVENT 1

The first programmable schedule time period of

the day. The

temperature settings are used

during this time period.

SuMoTuWeThFrSa

Access Level: Installer, User

Range: 12:00 AM to 11:50 PM, SKIP

or 00:00 to 23:50, SKIP

Conditions: Schedule setting is set to Zone or

Master 1, 2, 3, 4 and Event/Day is set to 2 or 4.

Default: 6:00 AM

EVENT 2

The second programmable schedule time period

of the day. The temperature settings are used

during this time period.

SuMoTuWeThFrSa

Access Level: Installer, User

Range: 12:00 AM to 11:50 PM, SKIP

or 00:00 to 23:50, SKIP

Conditions: Schedule setting is set to Zone or

Master 1, 2, 3, 4 and Event/Day is set to 2 or 4.

Default:

10:00 PM when Event/Day is 2

8:00 AM when Event/Day is 4

EVENT 3

The third programmable schedule time period

of the day. The temperature settings are used

during this time period.

SuMoTuWeThFrSa

Access Level: Installer, User

Range: 12:00 AM to 11:50 PM, SKIP

or 00:00 to 23:50, SKIP

Conditions: Schedule setting is set to Zone or

Master 1, 2, 3, 4 and Event/Day is set to 4.

Default: 6:00 PM

EVENT 4

The fourth programmable schedule time period

of the day. The temperature settings are used

during this time period.

SuMoTuWeThFrSa

Access Level: Installer, User

Range: 12:00 AM to 11:50 PM, SKIP

or 00:00 to 23:50, SKIP

Conditions: Schedule setting is set to Zone or

Master 1, 2, 3, 4 and Event/Day is set to 4.

Default: 10:00 PM

The schedule menu can operate on a 24 hour or 7 day repeating schedule. When a

24 hour schedule is selected, “SuMoTuWeThFrSa” is shown on the top of the screen

to show that the event time applies to all days of the week. When a 7 day schedule

is selected, each individual day of the week is shown with the event time.

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A Watts Water Technologies Company

Setting Display

SCHEDULE

Select if the thermostat should change the temperature

automatically using a programmable schedule.

OFF = Programmable schedule is not used.

Zone = Applies to this thermostat only.

Master 1, 2, 3, 4 = In charge of one of four available

network schedules.

Member 1, 2, 3, 4 = Follows selected network

schedule.

Access Level: Installer, User

Range: OFF, Zone, Master 1, 2, 3,

4, Member 1, 2, 3, 4

Conditions: In a tekmarNet

®

system, settings adjustable

in Installer access level only.

Default: OFF

EVENT PER DAY

Select the number of temperatures per day.

Access Level: Installer, User Range: 2 or 4

Conditions: Schedule setting is set to Zone or

Master 1, 2, 3, 4.

Default: 2

24 HOUR / 7 DAY

Access Level: Installer, User Range: 24 hour or 7 day

Conditions: Schedule setting is set to Zone or Master

1, 2, 3, 4.

Default: 24 hour

OPTIMUM START

Select whether or not to use optimum start. The

thermostat learns the heat up rate of the radiant

floor heating system and starts heating in advance

of Event 1 or Event 3.

Access Level: Installer, User Range: OFF or ON

Conditions: A schedule must be in use. Default: ON

Schedule Menu (2 of 2)

Display Menu (1 of 2)

Setting Display

UNITS

Select Fahrenheit or Celsius as the temperature

units.

Access Level: Installer, User Range: °F or °C

Conditions: Always available. Default: °F

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