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Mode
Continous Fan
(Fan switch ON)
Themostat calls for 1st stage Heat
Themostat calls for 2nd stage Heat
Continous Fan
(Fan switch ON)
Themostat calls for 1st stage Heat
Themostat calls for 2nd stage Heat
Themostat calls for Cooling
Themostat calls for Cooling &
Dehumidification
Continous Fan
(Fan switch ON)
Themostat calls for 1st stage Heat
Themostat calls for 2nd stage Heat
Themostat calls for 1st stage Cooling
Themostat calls for 2nd stage Cooling
Themostat calls for 2nd stage Cooling &
Dehumidification
Continous Fan
(Fan switch ON)
Themostat calls for Cooling
Themostat calls for Cooling &
Dehumidification
Themostat calls for 1st stage Heat
(Heat pump heating mode)
Themostat calls for 2nd stage Heat
(Electric heat) ?
Continous fan
(Fan switch ON)
Themostat calls for 1st stage Cooling
Themostat calls for 2nd stage Cooling
Themostat calls for 2nd stage Cooling &
Dehumidification
Themostat calls for 1st stage Heat
(Heat pump heating mode)
Themostat calls for 2nd stage Heat
(Heat pump heating mode)
Themostat calls for 3rd stage Heat
(Electric Heat) ?
* Le signal 24 VAC est enlevé de DH quand il y a une demande de déshumidification.
** Les éléments électriques sont contrôlés en séquence par des contrôles de temporisation installés sur les relais.
∆ Le thermostat doit posséder une option « Bi-énergie » ou un kit de combustible fossile doit être utilisé (les éléments électriques
et la pompe à chaleur ne doivent pas fonctionner en même temps).
▼ Le cavalier J2 sur la carte de contrôle fournit une connexion entre W1 et W2. Enlever J2 pour avoir 2 stages en mode
électrique lorsqu'un thermostat 2 stages est utilisé.
Tableau 1 : Séquence de fonctionnement
Thermostat to Control
Control
Board 24 VAC
State
Electric Heat only
ON
OFF
G
ON
OFF
W1 ?
ON
OFF
W1 & W2 ?
Cooling 1 stage, with Electric Heat
ON
OFF
G
ON
OFF
W1 ?
ON
OFF
W1 & W2 ?
ON
OFF
Y/Y2 & G
ON
OFF
Y/Y2 & G & (DH)*
Cooling 2 stages, with Electric Heat
ON
OFF
G
ON
OFF
W1 ?
ON
OFF
W1 & W2 ?
ON
OFF
Y1 & G
ON
OFF
Y/Y2 & Y1 & G
ON
OFF
Y/Y2 & Y1 & G & (DH)*
Heat pump 1 stage, with Electric Heat
ON
OFF
G
ON
OFF
Y/Y2 & G & O
ON
OFF
Y/Y2 & G & O & (DH)*
ON
OFF
Y/Y2 & G
ON
OFF
W1 & W2 ?
Heat pump 2 stage, with Electric Heat
ON
OFF
G
ON
OFF
Y1 & G & O
ON
OFF
Y/Y2 & Y1 & G & O
ON
OFF
Y/Y2 & Y1 & G & (DH)*
ON
OFF
Y1 & G
ON
OFF
Y1 & Y/Y2 & G
ON
OFF
W1 & W2
Fan ON at the selected continous fan CFM
Fan OFF
Fan ON at selected 1st stage Heat CFM, 1st stage of Heat ON**
1st stage of Heat OFF, Fan OFF
Fan ON at selected 2nd stage Heat CFM, 1st stage & 2nd stage of Heat ON**
1st stage & 2nd stage of Heat OFF, Fan OFF
Fan ON at the selected continous fan CFM
Fan OFF
Fan ON at selected 1st stage Heat CFM, 1st stage of Heat ON**
1st stage of Heat OFF, Fan OFF
Fan ON at selected 2nd stage Heat CFM, 1st stage & 2nd stage of Heat ON**
1st stage & 2nd stage of Heat OFF, Fan OFF
Compressor ON, Fan ON at selected Cooling CFM and delays
Compressor OFF, Fan OFF after selected cooling delays
Compressor ON, Fan ON at selected Cooling CFM -20% and delays
Compressor OFF, Fan OFF after selected cooling delays
Fan ON at the selected continous fan CFM
Fan OFF
Fan ON at selected 1st stage Heat CFM, 1st stage of Heat ON**
1st stage of Heat OFF, Fan OFF
Fan ON at selected 2nd stage Heat CFM, 1st stage & 2nd stage of Heat ON**
1st stage & 2nd stage of Heat OFF, Fan OFF
Compressor ON, Fan ON at selected 1st stage Cooling CFM and delays
Compressor OFF, Fan OFF after selected cooling delays
Compressor ON, Fan ON at selected Cooling CFM and delays
Compressor OFF, Fan OFF after selected cooling delays
Compressor ON, Fan ON at selected Cooling CFM -20% and delays
Compressor OFF, Fan OFF after selected cooling delays
Fan ON at the selected continous fan CFM
Fan OFF
Compressor ON, Fan ON at selected Cooling CFM and delays
Compressor OFF, Fan OFF after selected Cooling delays
Compressor ON, Fan ON at selected Cooling CFM -20% and delays
Compressor OFF, Fan OFF after selected cooling delays
Compressor ON, Fan ON at selected Heat Pump CFM and delays
Compressor OFF, Fan OFF after selected Heat Pump delays
Fan ON at selected 2nd stage Heat CFM, 1st stage & 2nd stage of Heat ON**
1st stage & 2nd stage of Heat OFF, Fan OFF
Fan ON at the selected continous fan CFM
Fan OFF
Compressor ON, Fan ON at selected 1st stage Cooling CFM and delays
Compressor OFF, Fan OFF after selected cooling delays
Compressor ON, Fan ON at selected Cooling CFM and delays
Compressor OFF, Fan OFF after selected cooling delays
Compressor ON, Fan ON at selected Cooling CFM -20% and delays
Compressor OFF, Fan OFF after selected cooling delays
Compressor ON, Fan ON at selected Heat Pump CFM and delays
Compressor OFF, Fan OFF after selected Heat Pump delays
Compressor ON, Fan ON at selected Heat Pump CFM and delays
Compressor OFF, Fan OFF after selected Heat Pump delays
Fan ON at selected 2nd stage Heat CFM, 1st stage & 2nd stage of Heat ON**
1st stage & 2nd stage of Heat OFF, Fan OFF
13
Control Function
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