SYSTEM OPERATION
31
When using the furnace with a single stage non-communi
-
cating air conditioner or heat pump use the wiring methods
shown. When using a single stage air conditioner, the thermo
-
stat must be setup for single stage heating and single stage
cooling mode. When using a single stage heat pump, the
thermostat must be setup for dual fuel operation where the
reversing valve is energized in cooling mode (See Non-Com
-
municating Single Stage Heat Pump wiring diagram). In both
cases airflow must be selected using the tonnage menu where
Airflow = (400 CFM) x (Selected Tonnage). Tonnage values
range from 1 to 6 in 0.1 increments.
NOTE:
Airflow will not go above the system Max CFM. If the
tonnage value selected generates an airflow value above the
Max CFM, the system will cap this value and not provide any
more airflow than the Max CFM.
NOTE:
When installing a non-communicating outdoor unit
without using the Cool Cloud HVAC App, airflow adjustments
must be made using the control push buttons. The initial ver
-
sion of the phone application will not be capable of making
this setting change with this equipment configuration.
R
C
G
Y
Optional
Optional
INDOOR
BOARD TERMINAL
CONNECTIONS
R
C
G
Y
24 VAC
Thermostat
1
2
C
Heat Pump
Optional
R
C
Y
This is the only
case where setting the
thermostat to heat pump
mode is acceptable.
NON-COMMUNICATING SINGLE STAGE HEAT
PUMP
R
C
G
Y
Optional
Optional
Optional if
feature
supported by
thermostat
INDOOR
BOARD TERMINAL
CONNECTIONS
1
2
C
R
C
G
Y
C
Y
Remote
Condensing Unit
(Single-Stage Cooling)
24 VAC
Thermostat
Non-Communicating Single Stage A/C
Dehumidification
The control board is equipped with a 24 volt dehum input in
the thermostat wiring connector to be used with a thermostat
or dehumidistat. Dehumidification mode allows the air han
-
dler’s circulator blower to operate at a slightly lower speed
(85% of calculated speed) during a combined thermostat
call for cooling and thermostat call for dehumidification or
dehumidistat call for dehumidification. This lower blower
speed enhances dehumidification of the conditioned air as it
passes through the AC coil. If using the dehum input with a
thermostat, configure the thermostat to energize this terminal
when dehumidification is desired. If using an external dehu
-
midistat, connect it between the R and Dehum terminals. The
dehumidistat must operate on 24 VAC and utilize a switch
which
closes on humidity rise.
Refer to the low voltage wiring
diagrams for additional wiring details.
Dehumidistat (close on humidity rise)
R
C
G
Y
Dehumidistat
(close on humidity rise)
Figure 34
