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Installation and User Guide
FIGURE 1. PLACEMENT OF THE 102
Correct
Placement
2 FEET
Optimum
Zone
4.2
Mounting / Installation
Follow these steps to mount the 102 Control to the wall.
1.
Turn OFF all power to heating and cooling equipment.
2.
If an existing thermostat is being replaced:
IMPORTANT:
•
Do not exceed the specification ratings.
•
All wiring must conform to local and national electrical codes and ordinances.
•
This control is a precision instrument, and should be handled carefully. Rough handling or distorting components could cause the
control to malfunction
THERMOSTAT
FURNACE/AIR HANDLER
TYPICAL TERMINAL DESIGNATIONS
24V POWER (HEATING)
REMOVE JUMPER
R-RH
FOR 2 TRANSFORMER
4-M-R5
RC/RH SYSTEMS
24V POWER (COOLING)
R-RC-V
HEATING RELAY
W-H-4
ADD JUMPER
FAN RELAY
FOR HEAT PUMP
APPLICATIONS
G-F
COOLING RELAY
Y-Y6
REVERSING VALVE
ONLY REQUIRED FOR HEAT PUMP APPLICAITON
O
REVERSING VALVE ENERGIZED IN COOL MODE
REVERSING VALVE
B
ONLY REQUIRED FOR HEAT PUMP APPLICAITON
REVERSING VALVE ENERGIZED IN HEAT MODE
4.3 Battery Replacement
To replace batteries, set system to OFF, remove thermostat cover from wall and install
the batteries in the bottom of the thermostat. For best results, use a premium brand
"AAA" alkaline battery. If the home is going to be unoccupied for an extended period
(over 3 months) and "
leaving.
To prevent compressor and/or property damage, if the outdoor temperature is below 55°F,
Do not allow the compressor to run unless the compressor oil heaters have been operational
4
Natural heat
dissipation
from the
thermostat
Onboard
Thermistor
5 FEET
1
1
Does not support auxiliary heat
1
" is displayed the batteries should be replaced before
DO NOT operate the cooling system.
for 6 hours and the system has not been operational for at least 5 minutes.
a.
Record color and terminal marking of each wire.
b.
Disconnect the wires from the existing thermostat
being careful not to allow them to fall back into the wall.
Incorrect
c.
Remove the existing thermostat from the wall.
Placement
3.
Pull the cover off the thermostat body. Forcing or prying on
the thermostat will cause damage to the unit.
Heat from the screen may be trapped
4.
Move thermostat body over hole in wall and mark mounting
within the body of the Control by an
hole locations on wall using base as template. (See Fig. 1)
external top-down airflow source, such
as a ceiling fan.
5.
Move base out of the way. Drill mounting holes. If you are
using existing mounting holes pull thermostat wire bundle
through the hole in the thermostat base. Mount sub-base
to wall. Leveling is for appearance only and will not affect
thermostat operation.
The onboard thermistor may be biased
6. Connect wires to terminal block on base using appropriate
by this heat causing the displayed
wiring diagram.
indoor temperature to be elevated.
7.
Push excess wire into wall and plug hole with a fire resistant
material (such as fiberglass insulation) to prevent drafts
from affecting thermostat operation.
8. Two "AAA" alkaline batteries are included in the thermostat
at the factory with a battery tag to prevent power drainage.
9. Remove the battery tag to engage the batteries
Clip mumper W905 to produce a longer
2
heating cycle which is normally for hot
water or steam (hydronic systems)
CAUTION
!
Pub. No. 11HD23D1-1B-EN 09/2020
Ceiling Fan
Mounting Hole
W904 Clip for Celcius Display
Mounting Hole
W905 Clip for Hydronic System
Electric/Gas Switch
Battery Location
CAUTION
!
NOTICE! FREEZE HAZARD
• Replace batteries when "Change
• "Change
" indicates batteries have limited
remaining life.
• System will not operate with dead batteries.
Part No.
2
" is displayed.
37-7771002
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