Service manual

9
6536-335* 2-STAGE HEAT PUMP WITH BACKUP HEAT THERMOSTAT OPERATION TABLE
Mode
Switch
Fan Mode
Switch
Fan Speed
Switch
Calling Operation
1 Cool Auto Lo No No functions occur in this mode
2 Cool Auto Lo Stage 1
1 Degree Above Set
ID fan low, compressor #1 and OD blower low
cycle as needed
3 Cool Auto Lo Stage 2
2 Degrees Above Set
ID fan low, compressors #1 and #2 and OD blower
high cycle as needed
4 Cool On Lo No ID fan low continuous
5 Cool On Lo Stage 1
1 Degree Above Set
ID fan low continuous, compressor #1 and OD
blower low cycle as needed
6 Cool On Lo Stage 2
2 Degrees Above Set
ID fan low continuous, compressors #1 and #2
and OD blower high cycle as needed
7 Cool Auto Hi No No functions occur in this mode
8 Cool Auto Hi Stage 1
1 Degree Above Set
ID fan high, compressor #1 and OD blower low
cycle as needed
9 Cool Auto Hi Stage 2
2 Degrees Above Set
ID fan high, compressors #1 and #2 and OD
blower high cycle as needed
10 Cool On Hi No ID fan high continuous
11 Cool On Hi Stage 1
1 Degree Above Set
ID fan high continuous, compressor #1 and OD
blower low cycle as needed
12 Cool On Hi Stage 1
2 Degrees Above Set
ID fan high continuous, compressors #1 and #2
and OD blower high cycle as needed
13 Off Auto Lo or Hi No No functions occur in this mode
14 Off On Lo No ID fan low continuous
15 Off On Hi No ID fan high continuous
16 Gas Heat Auto or On Lo or Hi No No functions occur in this mode
17 Gas Heat Auto or On Lo or Hi Stage 1 Heater will be energized to run
18 Gas Heat Auto or On Lo or Hi Stage 2 There is no provision for 2
nd
stage heat when
operating in the gas heat mode
19 Elec Heat Auto or On Lo or Hi No No functions occur in this mode
20 Elec Heat Auto or On Lo or Hi Stage 1 Heat pump will run ID fan high, both compressors,
OD fan high and both reversing valves
21 Elec Heat Auto or On Lo or Hi Stage 2 Backup heater will be energized to run