6
ATTACH THERMOSTAT TO SUBBASE
WE RECOMMEND THAT YOU SET OPTION SWITCHES
TO DESIRED POSITION BEFORE ATTACHING ON
SUBBASE (see OPERATION). WE ALSO RECOM-
MEND THAT YOU PROGRAM THE THERMOSTAT
WITH BATTERY INSTALLED BEFORE ATTACHING
ON SUBBASE (see OPERATION GUIDE for program-
ming instructions).
POWER TO THERMOSTAT MUST BE OFF BEFORE
ATTACHING THERMOSTAT TO WALL. FAILURE TO
TURN OFF POWER BEFORE ATTACHING THERMO-
STAT MAY CAUSE EQUIPMENT DAMAGE DUE TO
RAPID COMPRESSOR CYCLING.
To attach thermostat to subbase, line up the plastic snap
guides at the top of the thermostat and the 4 connector
pins on the thermostat with the connectors near the top
right section of the subbase (when viewed from the front).
Gently pivot the thermostat down until the 9-pin connec-
tors and the plastic snaps lock into place (see fig. 7). Be
gentle when attaching thermostat. If the thermostat
does not seem to be attaching to the subbase easily,
make sure that the connector pins and plastic snaps are
properly aligned, and that excess wire is pushed into the
wall. Damage to the thermostat may occur if force is
used.
OPERATION
ENGAGE TWO UPPER GUIDES;
PIVOT DOWN
Figure 7. Attaching thermostat to subbase
SYSTEM CONFIGURATION
ANY TIME OPTION SWITCHES #1, #2, OR #4 ARE
CHANGED, THE 9 VOLT BATTERY MUST BE RE-
MOVED FOR A MINIMUM OF 2 MINUTES. DO NOT
REMOVE THE BATTERY WHEN CHANGING OPTION
SWITCH #3.
SET OPTION SWITCHES
1.
Single Stage Compressor Heat Pump System —
with reversing valve energized through B or O termi-
nals
2.
Two Compressor (Split) or Two Speed Compres-
sor System
Figure 8. Back of thermostat
Option switches
9-pin connector
4-pin connector
Battery
3.
Multi-stage System with Electric Auxiliary Heat-
ing System — up to 3 heat stages and 2 cool stages
4.
Multi-stage System — up to 3 heat stages and 2 cool
stages
NOTE
ON
1
2
3
4
Switch #1
Switch #2
Switch #3 (see step 5)
Switch #4 (see step 6)
OFF
OFF
W1
Y1
Field jumper W1 & Y1
ON
1
2
3
4
Switch #1
Switch #2
Switch #3 (see step 5)
Switch #4 (see step 6)
OFF
ON
W1
Y1
Field jumper W1 & Y1
W2
Y2
Field jumper W2 & Y2
ON
1
2
3
4
Switch #1
Switch #2
Switch #3 (see step 5)
Switch #4 (see step 6)
ON
ON
ON
1
2
3
4
Switch #1
Switch #2
Switch #3 (see step 5)
Switch #4 (see step 6)
ON
OFF