FORM 320251-0803
©2007 ZONEFIRST
™
5
Zone Thermostats
– The thermostats wiring will be for
Conventional single stage (Y-G-R-W-C) or Heat Pump (Y-G-R-E-C
and O or B). See Wiring Diagram 1 and 2 each type of
thermostat.
WIRING DIAGRAM 1
–
Conventional Thermostats
Y
G
C
R
W/OB
E
Z
O
N
E
TH
E
R
M
O
S
T
A
T
TE
R
M
IN
A
L
S
C W R Y G
ZONE THERMOSTAT
WIRING DIAGRAM 2
–
Heat Pump Thermostat
Y
G
C
R
W/OB
E
ZONE
T
H
E
R
M
O
S
T
A
T
T
E
RM
IN
A
L
S
C O/B R Y G E
ZONE THERMOSTAT
WIRING DIAGRAM 3 -
HVAC Equipment
– Up to Two
Stage Heating and Single Stage Cooling
Y
O
G
W1/B
R
W2
Y2
Y COMPRESSOR RELAY
G FAN RELAY
W HEATING RELAY
R 24V TRANSFORMER C
HV
A
C
E
Q
UIPM
ENT
T
E
RM
IN
AL
S
Y2 2
ND
STAGE
COMPRESSOR RELAY
W2 2
ND
STAGE
HEATING RELAY
Y
O
G
W1/B
R
W2
Y2
Y COMPRESSOR RELAY
G FAN RELAY
W HEATING RELAY
R 24V TRANSFORMER C
HV
A
C
E
Q
UIPM
ENT
T
E
RM
IN
AL
S
Y2 2
ND
STAGE
COMPRESSOR RELAY
W2 2
ND
STAGE
HEATING RELAY
WIRING DIAGRAM 4 -
HVAC Equipment
– Dual Fuel Heat
Pump with Fossil Fuel Back-Up
Y
O
G
W1/B
R
W2/E
Y2
Y COMPRESSOR RELAY
G FAN RELAY
R 24V TRANSFORMER C
HV
A
C
EQU
IPM
ENT
TER
M
INA
L
S
W2
FURNACE
O REVERSING VALVE
B REVERSING VALVE
WIRING DIAGRAM 5 –
Single Speed Compressor Heat
Pump
Y
O
G
W1/B
R
W2/E
Y2
Y COMPRESSOR RELAY
G FAN RELAY
R 24V TRANSFORMER C
HV
A
C
EQUIPM
ENT
T
E
RM
IN
AL
S
HEAT PUMP EQUIPMENT
W2 SECOND STAGE and
EMERGENCY HEAT
O REVERSING VALVE
B REVERSING VALVE
WIRING DIAGRAM 6 –
Two Speed Compressor Heat
Pump
Y
O
G
W1/B
R
W2/E
Y2
Y COMPRESSOR RELAY
G FAN RELAY
R 24V TRANSFORMER C
HV
A
C
EQU
IPM
ENT
TE
R
M
IN
A
L
S
W3 Third Stage Heat and
EMERGENCY HEAT
O REVERSING VALVE
COOL
B REVERSING VALVE
HEAT
Y2 SECOND STAGE
COMPRESSOR RELAY
TROUBLESHOOTING
The H32P is a very simple control to troubleshoot, especially
with the LED indicators. The only other device needed is a
simple Volt/Ohm meter. Almost all problems can be traced to
an external component or wiring to the H32P. The following
procedures can help isolate the problem.
Zone(s) Not Calling
Each zone has a Green LED next to the zone relay when it is
calling and that calling is being recognized by the H32P. If a
zone is supposed to be calling and the Zone LED is not on,
check for 24VAC across the thermostat terminal C and the Y, if
a Cool call, W if a Heat Call, or G if a Fan call. If there is no
voltage here at the panel the panel is not getting the signal from
the thermostat. The problem is mis-wiring, a broken wire or a
problem in the thermostat. To check the zone on the panel,
place jumper from R to Y, R to W or R to G to see that the panel
is operating properly.
