Data Manual

18
HEAT PUMP MODELS
The Zoneline AZ65 Series heat pump units may be
connected to a single-stage cooling/two-stage heating
thermostat designed for use with heat pump systems.
GE Appliances offers four thermostats compatible with
the AZ65 Series units:
Compatibility of other thermostats considered for
use with the GE Appliances Zoneline unit is the
responsibility of the customer.
The control voltage on the remote control conductors
is 24 VAC.
The Class 2 remote thermostat option (Mode 6 in
the auxiliary control setting) must be turned ON to
enable remote thermostat control. Refer to installation
instructions packaged with the chassis.
If using a 1-fan speed remote thermostat, the fan speed
for the AZ65 Series in remote thermostat operation
is selected by the connection of the fan wire from the
thermostat to either the HIGH or LOW wire on the
remote thermostat connector. See the sketch of the unit
connector for the color of the HIGH and LOW fan speed
wire. Operating the unit in low fan speed reduces the
operating sound level of the unit.
FEATURE HEAT PUMP ELECTRIC HEAT
Quick Heat Recovery Ye s N/A
Indoor frost control Yes Yes
Freeze Sentinel Yes Yes
Heat Sentinel Yes Yes
Constant Fan Yes Yes
Electronic temperature limiting
Determined by
remote thermostat
Determined by
remote thermostat
Switch to resistance heat
based on indoor temperature
Determined by
remote thermostat N/A
Switch to resistance heat
based on outdoor temperature Yes N/A
Reverse cycle defrost Yes N/A
Partial resistance heat
with heat pump
When heat boost
option turned on N/A
Resistance heat lockout Yes N/A
“Smart Fan”
fan cycle
Fan ON/AUTO
set on remote
thermostat
Fan ON/AUTO set on
remote thermostat
Central Desk Control Yes Yes
When connected to a remote thermostat, indoor
air-temperature sensing is shifted from the unit to the
remote thermostat. For this reason, the units will operate
slightly differently when connected to a remote thermostat.
The above chart shows the unit operation when connected
to a remote thermostat.
NOTE: The low voltage transformer which powers
the remote thermostat (and other controls) is
“self-recovering” from potential wiring shorts. Should
you lose low voltage control power (to the thermostat
and the display panel on the unit), remove power to the
unit, check the thermostat wiring for shorts, correct the
issue and reapply power to the unit.
NOTE: With the new AZ45 and AZ65 Series, thermostat
twinning is allowed, where more than on unit may be
connected to a single remote thermostat. In order to
accomplish this, ONLY ONE POWER SOURCE
(24VAC – R TERMINAL WIRE) CAN BE CONNECTED TO
THE THERMOSTAT. All other thermostat wires of the
additional unit should be connected as directed.
THERMOSTAT WIRING DIAGRAM
Black -C- Common
White -W- AUXHeat
Yellow -Y- Compressor
Blue -B- Reversing Valve
Green -GH- High Fan
Tan -GL- LowFan
Red -R- 24VAC
Zoneline Thermostat
Connector
RAK164D2
Digital thermostat requiring
five connection wires.
RAK164P2
Digital programmable
thermostat requiring five
connection wires.
RAK180W1
Energy management
occupancy sensing
wired/wireless thermostat.
Makeup Air compatible.
RAK164F2
Digital thermostat with
two fan speeds—requiring
six connection wires.
UNIT/REMOTE THERMOSTAT CONTROL
REMOTE THERMOSTAT CONTROL (CONTINUED)
ARCHITECTS & ENGINEERS DATA MANUAL AZ45/AZ65 SERIES