Installation Manual

69-2738EFS—03 6
Installer setup
1 Press Fan and s simultaneously and hold for
approximately 3 seconds. The screen will change
to display two numbers and the button designations
will be Done, Back, blank, Next.
2 Press Next until you see the function number—the
larger number on the left—you want to set.
3 Change options for any function by pressing s or
t until the correct option (smaller number on right)
is displayed.
4 Repeat Steps 2 and 3 until you have set all
functions that you wish to change.
5 When you have made all changes, press Done to
save and exit.
MCR33893A
HOLD
MCR33884
HOLD
Function Settings & Options
1
Select System
Type
0 Heat/cool: Gas, oil or electric heating with central air conditioning.
1 Heat pump: Heat pump without backup or auxiliary heat.
2 Heat only: Gas, oil or hot water heat without central air conditioning.
3 Heat only with fan: Gas, oil or electric heat without central air
conditioning.
4 Cool only: Central air conditioning only.
5 Heat pump: Heat pump with backup or auxiliary heating.
6 Heat/Cool Multiple stages: 2 heat stages, 2 cooling stages.
7 Heat/Cool Multiple stages: 2 heat stages, 1 cooling stage.
8 Heat/Cool Multiple stages: 1 heat stage, 2 cooling stages.
9 Heat Pump Multiple Stages: 2 heat stages, 2 cool stages.
10 Heat Pump Multiple Stages: 3 heat stages, 2 cool stages.
2
Heat Pump
Changeover Valve
(for heat pumps
only)
0 Cooling changeover valve: Use this setting if you connected a wire
labeled “O” to the O/B terminal.
1 Heating changeover valve: Use this setting if you connected a wire
labeled “B” to the O/B terminal.
3
Heating Fan
Control
0 Gas or oil heat: Use this setting if you have a gas or oil heating system
(system controls fan operation).
1 Electric heat: Use this setting if you have an electric heating system
(thermostat controls fan operation).
5
Heating Cycle
Rate
5 Gas or oil furnace: Standard gas/oil furnace (less than 90% efficiency).
9 Electric furnace: Electric heating systems.
3 Hot water or high-efficiency furnace: Hot water system or gas furnace
(more than 90% efficiency).
1 Gas/oil steam or gravity system: Steam or gravity heat systems.
[Other options: 2,4,6,7,8,10,11,12]
6
Heating Cycle
Rate Stage 2
7
Heating Cycle Rate
Auxiliary
9
1st stage compres-
sor cycle rate
3 Recommended for most compressors
[Other options: 1, 2, 4, 5 or 6 CPH]
10
2nd stage com-
pressor cycle rate