Honeywell Home THM04R3000 Guia De Instalacion página 7

EIM wiring guide — heat pump systems
Typical wiring of a heat pump system with up to four-stage heat and two-stage
cool with one transformer.
THM04R3000
S3
S3
S4
S4
1 REMOVE JUMPER(S) IF USING SEPARATE TRANSFORMERS.
2 THE CHANGEOVER VALVE WILL BE LABELED O IF ENERGIZED IN COOL OR B IF ENERGIZED IN HEAT.
3 THE AUXILIARY HEAT STAGE(S) ARE LABELED DIFFERENTLY ON DIFFERENT HEAT PUMP AIR HANDLERS. MOST HEAT
PUMPS APPLICATIONS ONLY HAVE ONE STAGE OF AUXILIARY HEAT.
NOTE: SEE FOLLOWING PAGES FOR ADDITIONAL THERMOSTAT WIRING GUIDELINES FOR OTHER SYSTEM TYPES, SENSOR
WIRING, IAQ CONTROL, AND OTHER DRY CONTACT WIRING OPTIONS.
R
C
L
O/B
2
W1
W2
AUX1
W3
AUX2
Y1
Y2
G
RH
RC
R
C
U1
U1
U2
U2
U3
U3
S1
S1
S2
S2
7
HEAT PUMP / AIR-HANDLER
L (SYSTEM FAULT MONITOR)
O (CHANGEOVER VALVE)
AUX 1 (AUXILIARY HEAT)
AUX 2 (AUXILIARY HEAT STAGE 2)
3
Y1 (COMPRESSOR STAGE 1)
Y2 (COMPRESSOR STAGE 2)
G (FAN)
R (24 VAC HOT)
C (24 VAC COMMON)
1 1
JUMPERS
1
M38715