By Barry Leavitt
The following notes should help you on this project.
Parts order:
(I would order double the amount of foam tape)
(did not need new standoffs as non broke in board change)
AC power module 310 9229.009 2
Comfort Control Center 310 9228.001 1
Standoff, PC board ( 4 req) 310 1624.017 8
Foam tape, 1-1/4" x 1-1/4" x 35" 310 2669.029 4
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Inside wires in air intake area above filter grill:
Zone 1 Zone 2
FRONT AIR CONDITIONER - REAR AIR CONDITIONER
110 volt power wire set Purpose Foretravel wires Foretravel wires
AC power 110 v fan & compressor power Romex from street-side
leg-1 Romex from curb-side leg-2
Air conditioner control wire set
black RJ-11 Comfort Control Center gray RJ-11 into curb-side
roof gray RJ-11 #38894 into curb-side roof
black RJ-11 Comfort Control Center gray RJ-11 #25023 into street-side roof n/c
white 2-wire plug remote temp sensor n/c white plug into curb-side roof
black wire 12 v - ground (to zone 1 only) to ground n/c
red wire 12 v + power (to zone 1 only ?) white wire
#10825023 into curb-side roof white wire #10825023 into curb-side roof
white wire #10825023 into street-side roof
blue wire, no polarity furnace thermostat white wire into street-side roof n/c
blue wire, no polarity furnace thermostat green wire into street-side roof n/c
yellow wire, no polarity load-shed / energy manangement n/c n/c
Comfort Control model #
3106463.007, 02-941101-E, 99023
n/c = no wires connected
System Reset instructions for later models
When dip switch is changed after initial configuration,
reset required before Comfort Control will recognize change
After setting the dip switches in the electronic control, do a system reset
Turn on/off switch to off position
Simultaneously depress and hold the mode & zone buttons
while turning on/off to on position
FF should appear in display until the mode & zone buttons
are released
Model 620x15 have heat strip and dip sw #1 is on
If zone has furnace, furnace dip sw #5 is on
When Load-Shed relay wants compressor off, load-shed relay
closes yellow wires to shut off air conditioner compressor
Not sure about 12 v + supply to both AC units as specs say
12 + only needed to zone 1
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Rear board wiring:
connector ID terminal color MH wire connection orig board MH this new board
RJ-11 P1 4 wires black comfort control y y
RJ-11 P2 4 wires black comfort control y y
2 wire P3 pair red n n
2 wire P4 pair white remote temp sensor y y
2 wire P5 pair blue freeze control y y
6 wire P6
1 yellow load shed y y
2 blue furnace
3 blue furnace
4 yellow load shed
5 black ground
6 red battery
spade T1 black fan motor y y
T2 yellow fan motor y y
T3 red fan motor y y
T4 violet n/a n
relay K1 spade T5 black wire to relay common (pre wired on board) n y
spade NO black relay normal open y through limit switch to heat element y
relay K6 spade COM black common y 110v hot y
spade NO black normal open y compressor y
dip switch
1 heat strip y y
2 zone 2 y y
3 zone 3
4 zone 4
5 furnace
6 differential
7 stage
8 gen start
fuse spade F1 3 amp purple fuse
round run capacitor red through PTCR to run cap, compressor white heating element
oval run capacitor brown fan motor
white motor, neutral 110v, heating element
red compressor
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Front board wiring:
connector ID terminal color MH wire connection original
board MH this new board
RJ-11 P1 4 wires black comfort control y y
RJ-11 P2 4 wires black comfort control y y
2 wire P3 pair red n n
2 wire P4 pair white remote temp sensor y y
2 wire P5 pair blue freeze control y y
6 wire P6
1 yellow load shed y y
2 blue furnace
3 blue furnace
4 yellow load shed
5 black ground
6 red battery
spade T1 black fan motor y y
T2 yellow fan motor y y
T3 red fan motor y y
T4 violet n/a n
relay K1 spade T5 black wire to relay common (pre wired on
board) n y
spade NO black relay normal open y through limit switch to
heat element y
relay K6 spade COM black common y 110v hot y
spade NO black normal open y compressor y
dip switches
1 heat strip y y
2 zone 2
3 zone 3
4 zone 4
5 furnace y y
6 differential
7 stage
8 gen start
fuse spade F1 3 amp purple fuse
round run capacitor red through PTCR to run cap, compressor
white heating element
oval run capacitor brown fan motor
white motor, neutral 110v, heating element
red compressor
© Barry Brideau 2007