Mode
Thermostat to Control
Board 24 VAC
Control
State
Control Function
ON
Fan ON at the selected continous fan CFM
OFF
Fan OFF
ON
Fan ON at 50% of the selected Heat CFM, 1st stage of Heat ON**
OFF
1st stage of Heat OFF, Fan OFF
ON
Fan ON at selected Heat CFM, 1st stage & 2nd stage of Heat ON**
OFF
1st stage & 2nd stage of Heat OFF, Fan OFF
ON
Fan ON at the selected continous fan CFM
OFF
Fan OFF
ON
Fan ON at 50% of the selected Heat CFM, 1st stage of Heat ON**
OFF
1st stage of Heat OFF, Fan OFF
ON
Fan ON at selected Heat CFM, 1st stage & 2nd stage of Heat ON**
OFF
1st stage & 2nd stage of Heat OFF, Fan OFF
ON
Compressor ON, Fan ON after delays at selected Cooling CFM
OFF
Compressor OFF, Fan OFF after selected cooling delays
ON
Compressor ON, Fan ON after delays at 80% of the selected Cooling CFM
OFF
Compressor OFF, Fan OFF after selected cooling delays
ON
Fan ON at the selected continous fan CFM
OFF
Fan OFF
ON
Fan ON at 50% of the selected Heat CFM, 1st stage of Heat ON**
OFF
1st stage of Heat OFF, Fan OFF
ON
Fan ON at selected Heat CFM, 1st stage & 2nd stage of Heat ON**
OFF
1st stage & 2nd stage of Heat OFF, Fan OFF
ON
Compressor ON, Fan ON after delays at 80% of the selected Cooling CFM
OFF
Compressor OFF, Fan OFF after selected cooling delays
ON
Compressor ON, Fan ON after delays at selected Cooling CFM
OFF
Compressor OFF, Fan OFF after selected cooling delays
ON
Compressor ON, Fan ON after delays at 80% selected Cooling CFM
OFF
Compressor OFF, Fan OFF after selected cooling delays
ON
Fan ON at the selected continous fan CFM
OFF
Fan OFF
ON
Compressor ON, Fan ON after delays at selected Cooling CFM
OFF
Compressor OFF, Fan OFF after selected Cooling delays
ON
Compressor ON, Fan ON after delays at 80% of the selected Cooling CFM
OFF
Compressor OFF, Fan OFF after selected cooling delays
ON
Compressor ON, Fan ON after delays at selected Heat Pump CFM
OFF
Compressor OFF, Fan OFF after selected Heat Pump delays
ON
Fan ON at selected Heat CFM, 1st stage & 2nd stage of Heat ON**
OFF
1st stage & 2nd stage of Heat OFF, Fan OFF
ON
Fan ON at the selected continous fan CFM
OFF
Fan OFF
ON
Compressor ON, Fan ON after delays at 80% of the selected Cooling CFM
OFF
Compressor OFF, Fan OFF after selected cooling delays
ON
Compressor ON, Fan ON after delays at selected Cooling CFM
OFF
Compressor OFF, Fan OFF after selected cooling delays
ON
Compressor ON, Fan ON after delays at 80% of the selected Cooling CFM
OFF
Compressor OFF, Fan OFF after selected cooling delays
ON
Compressor ON, Fan ON after delays at 80% of the selected Heat Pump CFM
OFF
Compressor OFF, Fan OFF after selected Heat Pump delays
ON
Compressor ON, Fan ON after delays at selected Heat Pump CFM
OFF
Compressor OFF, Fan OFF after selected Heat Pump delays
ON
Fan ON at selected Heat CFM, 1st stage & 2nd stage of Heat ON**
OFF
1st stage & 2nd stage of Heat OFF, Fan OFF
Electric Heat only
Continous Fan
(Fan switch ON)
G
Themostat calls for 1st stage Heat
W1
▼
Themostat calls for 2nd stage Heat
W1 & W2
▼
Cooling 1 stage, with Electric Heat
Continous Fan
(Fan switch ON)
G
Themostat calls for 1st stage Heat
W1
▼
Themostat calls for 2nd stage Heat
W1 & W2
▼
Themostat calls for Cooling
Y/Y2 & G
Themostat calls for Cooling &
Dehumidification
Y/Y2 & G & (DH)*
Cooling 2 stages, with Electric Heat
Continous Fan
(Fan switch ON)
G
Themostat calls for 1st stage Heat
W1
▼
Themostat calls for 2nd stage Heat
W1 & W2
▼
Themostat calls for 1st stage Cooling
Y1 & G
Themostat calls for 2nd stage Cooling
Y/Y2 & Y1 & G
Themostat calls for 2nd stage Cooling &
Dehumidification
Y/Y2 & Y1 & G & (DH)*
Heat pump 1 stage, with Electric Heat
Continous Fan
(Fan switch ON)
G
Themostat calls for Cooling
Y/Y2 & G & O
Themostat calls for Cooling &
Dehumidification
Y/Y2 & G & O & (DH)*
Themostat calls for 1st stage Heat
(Heat pump heating mode)
Y/Y2 & G
Themostat calls for 2nd stage Heat
(Electric heat)
∆
W1 & W2
▼
Heat pump 2 stages, with Electric Heat
Continous fan
(Fan switch ON)
G
Themostat calls for 1st stage Cooling
Y1 & G & O
Themostat calls for 2nd stage Cooling
Y/Y2 & Y1 & G & O
Themostat calls for 2nd stage Cooling &
Dehumidification
Y/Y2 & Y1 & G & (DH)*
Themostat calls for 1st stage Heat
(Heat pump heating mode)
Y1 & G
Themostat calls for 2nd stage Heat
(Heat pump heating mode)
Y1 & Y/Y2 & G
Themostat calls for 3rd stage Heat
(Electric Heat)
∆
W1 & W2
13
TABLE 1
Sequence of operation
* The 24 VAC is removed from DH when there is a call for dehumidification.
** Electric heat elements are controlled by relays with a delay sequence from Rectifier timer board on the relays.
∆
The thermostat must provide Dual Fuel option or a Fossil Fuel kit must be used (electric heat elements & Heat pump must not run at
the same time).
▼
Jumper J2 on the electric board provides connection between W1 & W2. Remove it for 2 stage Electric Heat using a 2 stages
thermostat.
Summary of Contents for FEM15-E230V1M-A
Page 12: ...12 FIGURE 9 Diagramme électrique ...
Page 17: ...17 COMPOSANTES ET PIÈCES DE REMPLACEMENT ...
Page 18: ...18 LISTE DE PIÈCES Vue explosée B50081 Rev B ...
Page 31: ...12 FIGURE 9 Electrical Diagram ...
Page 36: ...17 COMPONENTS AND REPLACEMENT PARTS ...
