Wiring Guide; With Power Supply; Without Power Supply - Honeywell thm5421c Installation Manual

Wiring guide

Typical hookup of conventional system with up to three-stage heat and two-stage cool with one
transformer (3H/2C, 2H/2C, 2H/1C, 1H/2C, 1H/1C, 1H, 2H, 3H, 1C, 2C conventional).
Typical hookup of heat pump system with up to four-stage heat and two-stage cool with one
Wiring guide—equipment

With power supply

Typical hookup of powered humidifier.
POWERED
HUMIDIFIER
English:
1
1
1
2
2
3
3
C
R
RC
RH
FACTORY INSTALLED
JUMPER BETWEEN R,
RC AND RH
1 WIRE TO TERMINALS ON THERMOSTAT.
transformer (4H/2C, 3H/2C, 2H/2C, 2H/1C, 1H/1C heat pump systems).
1
1
1
2 2
3
3
C
R
RC
RH
FACTORY INSTALLED
JUMPER BETWEEN R,
RC AND RH
1 WIRE TO TERMINALS ON THERMOSTAT.
1
2
3
C
24 VAC
R
RC
RH
H1
U
M2
D1
H OR
M2
V1
N
T2
M23490
Page 1 • Français:
COMMUNICATION LED
COMMUNICATION
CONV. HP
TERMINALS
W1 O/B
W2 AUX
24 VAC
W3 AUX2
Y Y
Y2 Y2
G
G
COMMUNICATION LED
COMMUNICATION
CONV. HP
TERMINALS
W1 O/B
W2 AUX
24 VAC
W3 AUX2
Y Y
Y2 Y2
G G
Typical hookup of non-powered humidifier.
FIELD INSTALLED
JUMPER BETWEEN
R AND HUM 1
3
Page 6 • Español:
HEAT 1 RELAY
HEAT 2 RELAY
HEAT 3 RELAY
COOL 1 RELAY
COOL 2 RELAY
FAN RELAY
M23487
CHANGEOVER
AUX 1 (HEAT 3)
AUX 2 (HEAT 4)
COMP 1
COMP 2
FAN RELAY
M23488

Without power supply

NON-POWERED
HUMIDIFIER
69-1823EFS—05
Página 11
1
2
3
C
24 VAC
R
RC
RH
H1
U
M2
D1
H OR
M2
V1
N
T2
M23489