FORM 2316-FCA9/1/17
© 2017
Zonefirst®
5
the terminal without de-pressing the button.) To remove the wire,
just press its button again and remove the wire.
Zone Dampers
–
The H32 can power any 24VAC damper, either 2
wire or 3 wire. See specific wiring instructions with the damper or
inside panel cover. The three damper motor contacts are for
24VAC power are COM (Common), OPN (Open) and CLS (Closed)
COM
OPN
CLS
M1
M4
M6
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 for each type of
thermostat.
WIRING DIAGRAM 1
–
Conventional Thermostat
C W R Y G
W2/E
G
Y
R
W/OB
C
CONVENTIONAL THERMOSTAT
WIRING DIAGRAM 2
–
Heat Pump Thermostat
C O/B R Y G W2/E
W2/E
G
Y
R
W/OB
C
HEAT PUMP THERMOSTAT
WIRING DIAGRAM 3 -
HVAC Equipment
–
Conventional Single
Stage and Two-Stage Equipment
WIRING DIAGRAM 5 -
Single Speed Compressor Heat
Pump
WIRING DIAGRAM 6 -
Two Speed Compressor Heat Pump
TROUBLESHOOTING
The H32 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 H32. 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 H32. 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.
Zone(s) Will Not Shut Off
If a zone will not stop calling, the Zone LED should still be on.
Depending on the call disconnect the Y, W or G wire from the
terminal strip. The zone will drop out. Check the thermostat
wiring for a mis-wiring or short that keeps the zone calling.
Damper Motor Checkout
To check out the dampers, the panel supplies 24VAC to the COM
and OPEN when the damper is to be open and 24VAC to COM and
CLOSE when the damper is to be CLOSED. When any zone is
calling and its Green LED is ON, there is 24VAC across COM and
OPEN. The only time a damper will close is when anther zone is
calling and its zone is not calling. In this instance there will be
24VAC between COM and CLOSE.