Honeywell T841A,B Easy-To-SeeTM Heat Pump Thermostat Instruction Manual
HEAT PUMP THERMOSTAT
L1
(HOT)
L2
1
CHANGEOVER
RELAY (COOL)
O
L
FALL
H1
FAN SWITCH
AUTO
C1
SYSTEM
MONITOR
EM. HT.
LED (RED)
3
FAN RELAY
G
R
E
H1 ANTICIPATOR
C1 ANTICIPATOR
ON
4
EM. HT.
RELAY
X
AUX. HT.
LED (GREEN)
W2
SYSTEM
SWITCH
AUX. HT.
RELAY
FALL
B
EM. HT.
HEAT
H2
CHANGEOVER
RELAY (HEAT)
W1
Y1
2
JUMPER
OFF
HEAT RELAY 1
COOL
H2 ANTICIPATOR
COMPRESSOR
CONTACTOR
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
REMOVE W1-Y1 JUMPER WHEN HEAT RELAY 1 IS USED.
1
2
3
4
WHEN L TERMINAL IS CONNECTED TO SYSTEM MONITOR, EM. HEAT LED ALSO INDICATES COMPRESSOR MALFUNCTION.
X TERMINAL MUST BE CONNECTED FOR PROPER OPERATION.
M1103E
Fig. 2. Internal schematic and typical wiring diagram for T841A with AUX. HT. and EM. HT. LEDs. Provides heat
or cool changeover relay control and automatic fan in emergency heat mode.
W1
H1/C1
ANTICIPATOR
HEAT RELAY 1
W2
H1
C1
HEAT RELAY 2
FALL
B
HEAT CHANGEOVER
FAN SWITCH
VALVE
AUTO
G
ON
FAN RELAY
L1
(HOT)
R
SYSTEM
SWITCH
L2
1
X
HEAT
H2 ANTICIPATOR
OFF
COOL
Y1
H2
FALL
COMPRESSOR
CONTACTOR
O
COOL CHANGEOVER VALVE
M6068A
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
Fig. 3. Internal schematic and typical wiring diagram for T841B 2-stage heat, 1-stage cool, manual changeover.
3
69-1043-2
| General | Details |
|---|---|
| Name | Honeywell T841A,B Easy-To-SeeTM Heat Pump Thermostat Instruction Manual |
| Make | Honeywell |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.25 MB |
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