Johnson Controls H Series Installation Manual

General
NOTICE
Before installation of this kit, see Table 1 to determine
if this kit applies to the selected outdoor model. If the
outdoor model is not listed in Table 1, this kit cannot
be applied correctly to link an air handler to a H Series
modulating discharge unit.
Table 1: Compatible models
Models
HMH72B241S
HMH72B361S
HMH72B481S
HMH72B601S
This kit is required to run a Johnson Controls air handler
with a H Series modulating heat pump. If you are pairing
this outdoor unit with a gas furnace, the room thermostat
must be a heat pump thermostat that can manage
fossil fuel operation. The purpose of the kit is to provide
necessary parts for installation and allow the H Series
outdoor section to reduce airflow from the indoor unit
when the outdoor terminal S1 is energized. The H Series
outdoor section is designed for lower airflow when S1 is
energized and does not function correctly without this
kit. The kit also reverses the logic of the reversing valve to
allow the indoor section unit to function according to the
same mode as the outdoor section.
Kit contents
Table 2: Kit contents
Item
Relay plate
SPDT 24-V relays
5-wire 36-in. harness
#8 x 1/2-in. screw
#12 x 3/4-in. screw
Instruction sheet
Wiring diagram VS ECM/furnace
Drier
Field Kit Installation Manual: H Series - Horizontal
Discharge Modulating Heat Pump Furnace and VS ECM
Quantity
1
2
2
4
4
1
1
1
Johnson Controls Ducted Systems
Compatibility Kit (HMH7AK002)
Installation overview
1. Install the bi-flow filter/drier included when the
indoor equipment is in place at a suitable location
near the indoor section.
2. Remove the screws that secure the blower door of
the indoor section and remove the door.
3. Install the relays provided before wiring the
thermostat to the indoor and outdoor sections,
but after mechanical installation of both pieces of
equipment. You must install the relays in the indoor
section and connect the relays into the thermostat
wiring using wire connectors. See
plate for air handlers,
furnaces, Wiring the S1
for detailed instructions.
4. When the relay plate is secured, and all field wiring
is connected, replace and secure the blower door in
reverse order of removal.
5. Proceed with the startup instructions in the
Installation Manual for the HMH7 series.
Installing the relay plate for air handlers
1. Remove the screw at the front of the control panel
securing the transformer. Without removing the
transformer wiring, move the transformer to the
side to allow access.
2. Install the relay plate on the right-hand side using
the existing four screw holes on the rear of the
control panel with the #12 screws provided. See
Figure 1.
Note: The relays shown in Figure 1 may be
different form factors from the relays you
receive, depending on part availability.
3. When the relay plate is in place, reinstall the
transformer.
6096433-UAI-B-0721
Installing the relay
Installing the relay plate for
relay, and Wiring the RV relay