Install Instructions

33
single-stage 24VAC thermostat can be used. For proper op-
eration the thermostat must be setup to control a single-
stage AC outdoor unit and to control a single stage gas fur-
nace. The control board does not accommodate an O wire
thermostat input (reversing valve signal). If a heat pump is
installed, the thermostat should be setup as stated above.
Setting the thermostat for the heat pump control or multi
stage control may result in incorrect performance.
1) Connect all necessary thermostat wires to the
thermostat connector on the furnace control as
instructed by the applicable wiring diagrams shown
in this section.
2) Connect the 1 & 2 wires between the indoor and
outdoor unit for communicating operation.
Note: verify two stage outdoor units include a 24
VAC transformer (for outdoor control board power)
Two stage outdoor units may not behave properly
without this 24 VAC transformer.
R
C
G
Y
Optional
Optional
Optional if
feature
supported by
thermostat
INDOOR
BOARD TERMINAL
CONNECTIONS
OUTDOOR
BOARD TERMINAL
CONNECTIONS
OUTDOOR
TRANSFORMER
1
2
C
R
C
G
Y
1
2
C
Communicating Two Stage Air Conditioner or Heat Pump
Figure 49
1
2
C
R
C
G
Y
Optional
Optional
Optional
INDOOR
BOARD TERMINAL
CONNECTIONS
OUTDOOR
BOARD TERMINAL
CONNECTIONS
1
2
C
R
C
G
Y
24 VAC
Thermostat
Communicating Inverter Air Conditioner or Heat Pump
Figure 50
3) Download the Cool Cloud HVAC phone application
for charging and to configure/test system
operations.
NOTE: When new versions of Bluetooth Communication
Software and Furnace Control Software are available, the
phone application notifies the user. Software updates are
classified as either optional or mandatory and installed by
using the phone application. Ensure all mandatory software
updates have been installed. Review notes for optional
software updates and install if necessary.
Note: If an E11 code exists for the inverter system (shown in
the Cool Cloud HVAC phone application or displayed on the
inverter control), the system verification test needs to be
completed before any other operation. See the folowing
procedure.
1) Allow the system to remain idle for 5 minutes.
2) Turn the system verification test on either by using
the phone application or by entering the  menu
through the furnace push buttons.
3) Wait for the test to complete.
Charging
1) Inverter units using the Cool Cloud HVAC phone
application or control board push button:
a. Inverter units are charged by setting
the  menu (Charge Mode) to ON through
the furnace control board push buttons or
through the Cool Cloud HVAC phone
application.
b. The System will remain in charge mode (high
speed) for 60 minutes before timing out.
c. The installer must manually shut off charge
mode once complete.
2) Two-stage outdoor units using the Cool Cloud HVAC
application:
a. Using the cooling icon after entering the
outdoor unit menus, energize the outdoor
unit at 100% capacity.
b. Charge the outdoor unit as required using
the charging information provided with the
outdoor equipment.
Gas Furnace Testing
1) Two-stage Operation using the Cool Cloud HVAC
application:
a. Select the gas heat icon after entering the
furnace menus.
b. Select any value less than 50% for low
stage operation and any value greater than
50% for high stage operation.
4) Confirm thermostat heating and cooling calls function
proprly with equipment.