Honeywell T841A Installation Instructions Manual page 4

T841A HEATING-COOLING HEAT PUMP THERMOSTAT
FALL
H1
C1
H1 ANTICIPATOR
C1 ANTICIPATOR
FALL
H2
H2 ANTICIPATOR
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
1
REMOVE W1-Y1 JUMPER WHEN HEAT RELAY 1 IS USED.
2
3 WHEN L TERMINAL IS CONNECTED TO SYSTEM MONITOR, EM. HEAT LED ALSO INDICATES COMPRESSOR MALFUNCTION.
4 X TERMINAL MUST BE CONNECTED FOR PROPER OPERATION.
Fig. 3. Internal schematic and typical wiring diagram for SUPER TRADELINE® T841A1316 with AUX. HEAT and
EM. HEAT LEDs. Provides heat or cool changeover relay control and automatic fan in EM. HEAT mode.
H1
C1
H1/C1
ANTICIPATOR
H2
ANTICIPATOR
FALL
H2
Fig. 4. Internal schematic and typical wiring diagram for TRADELINE® T841A1498 and T841A1506
69-0452—8
FAN SWITCH
AUTO
ON
SYSTEM
SWITCH
EM. HT.
HEAT
OFF
COOL
FALL
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
1
OVERLOAD PROTECTION AS REQUIRED.
2
B TERMINAL MUST BE CONNECTED FOR PROPER OPERATION.
3 AUTO FAN IN EM. HEAT.
with EM. HEAT LED. Provides cooling changeover relay control.
EM. HT.
LED (RED)
AUX. HT.
LED (GREEN)
AUTO
ON
FAN
SWITCH
EM. HT.
SYSTEM
LED (RED)
SWITCH
EM. HT.
HEAT
OFF
COOL
4
CHANGEOVER
RELAY (COOL)
O
L
SYSTEM
3
MONITOR
G
R
E
4
X
W2
B
CHANGEOVER
RELAY (HEAT)
W1
2
JUMPER
Y1
COMPRESSOR
CONTACTOR
G
FAN RELAY
R
W
HEAT RELAY
H
"H" RELAY
2
B
X
EM. HT. RELAY
O
CHANGEOVER
RELAY (COOL)
Y
COMPRESSOR
CONTACTOR
L1
(HOT) L2
1
FAN RELAY
EM. HT.
RELAY
AUX. HT.
RELAY
HEAT RELAY 1
M1103E
L1
(HOT)
L2
1
M3171B