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997-060180-1
INSTALLER
ADVANCED FEATURES
INFORMATION /
SAFETY CONSIDERATIONS
Improper wiring or installation may damage thermostat. Wiring must
conform to local and national electrical codes
WARNING: Before installing thermostat, turn off all power to unit. There
may be more than one power disconnect. Electrical shock can cause personal
injury or death.
INTRODUCTION
The thermostat is a wall mounted, low-voltage thermostat which maintains room
temperature by controlling the operation of a heating and air conditioning
system. Batteries are not required; temperature and mode settings are preserved
with the power off.
INSTALLATION CONSIDERATIONS
The thermostat requires no batteries. The thermostat is not a power stealing
device and MUST have both R and C connected.
INSTALLATION
III.
THERMOSTAT LOCATION
Thermostat should be mounted:
- Approximately 5 ft. (1.5m) from floor.
- Close to or in a frequently used room, preferably on an inside
partitioning wall.
- On a section of wall without pipes or duct work.
Thermostat should NOT be mounted:
- Close to a window, on an outside wall, or next to a door leading
to the outside.
- Exposed to direct light and heat from a lamp, sun, fireplace, or
other temperature-radiating object which may cause a false reading.
- Close to or in direct airflow from supply registers and return-air grilles.
- In areas with poor air circulation, such as behind a door or in an alcove.
IV.
INSTALL THERMOSTAT
1. Turn off all power to unit.
2. If an existing thermostat is being replaced:
A. Remove existing thermostat from wall.
B. Disconnect wires from existing thermostat, one at a time. Be
careful not to allow wires to fall back into the wall.
C. As each wire is disconnected, record wire color and terminal marking.
D. Discard or recycle old thermostat.
NOTE: Mercury is a hazardous waste and MUST be disposed of properly.
3. Separate the front and back pieces of plastic.
4. Route thermostat wires through hole in back piece of plastic. Level plastic
against wall (for aesthetic value only - thermostat need not be leveled for
proper operation) and mark wall through 2 mounting holes.
5. Drill two 3/16-in. mounting holes in wall where marked. (Note: Mounting
holes on thermostat are designed to fit on a horizontal J-box).
6. Secure back plastic to wall with 2 anchors and screws provided making sure
all wires extend through hole in plastic.
7. Connect wires to proper terminal of the connector block in the front plastic.
8. Push any excess wire back into wall. Excess wire inside the thermostat
plastic case can interfere with proper air flow across the temperature sensor.
Seal hole in wall to prevent air leaks. Leaks can affect operation.
9. Snap front and back pieces of plastic together.
10. Turn on power to the unit.
WIRING DIAGRAMS
All excess wire should be pushed back into the wall as far as possible. Excess
wire inside the thermostat plastic case may interfere with the air flow across the
temperature sensor.
NOTES:
1. Single compressor units with CXM control only (No ECM fan) do not use terminal Y2.
2. Thermostat terminal W1 only used for backup electric heat. For residential units,
thermostat terminal is wired to CXM, DXM or ECM
board. For commercial units, thermostat terminal W1 is wired to an external duct heater.
3. For units with ClimaDry modulating reheat, thermostat terminal DH is wired directly to
DXM terminal H.
4. For units with ECM fan, thermostat terminal DH is wired to terminal DH on the ECM
board.
5. For units with ClimaDry and ECM fan, thermostat terminal DH is wired directly to DXM
terminal H (not to the ECM board).
THERMOSTAT CONNECTIONS
C – 24V Common for Control Circuit
DH – Dehumidify Output (ATP32U02 only)
R – 24V Supply for Control Circuit
W1 – Auxiliary Heat
H – Humidifier (ATP32U02 only)
O – Reversing Valve - energized in COOL mode
Y2 – 2nd Stage Compressor / Cooling / Heating
Y1 – 1st Stage Compressor / Cooling / Heating
G – Fan
L – Alarm Input
V – Not Used
A+, B – Not Used.
GND – Ground
OD – Outdoor Temperature Sensor
ID – Indoor Temperature Sensor
VI.
INSTALLER SETTINGS
NOTE: These options are intended to be used by the installer. End users are
not advised to change or modify any of these settings. Doing so may make
your equipment stop working properly and/or may void the warranty of the
thermostat as well as the equipment hooked up to the thermostat. To access
the installer setting menu, the mode must be set to OFF. Then, press both the
up and down arrows keys at the same time for at least 5 seconds to enter the
installer screen.
MODEL CONFIGURATION
Options to select from: HEAT / COOL, Single Stage or Multi Stage
or HEAT PUMP, Single Stage or Multi Stage, Electric or Multi Fuel.
ACCESSORIES
1
Review PROGRAM and HOLD sections to know effects of changing the set point
5
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