Installation Instructions Comfort Bridge Models

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The terminal can be congured to enable dehumidication
when the input is energized or de-energized. When using
an external dehumidistat, connect it between the R and DH
terminals. If the humidistat closes on humidity rise or the
thermostat energizes this terminal when dehumidication is
required, set the control board “dHL” (Dehum Logic) menu
setting to “HI” using the push buttons or CoolCloud HVAC
phone application. If the humidistat opens on humidity
rise or the thermostat de-energizes this terminal when
dehumidication is required, set the “dHL” (Dehum Logic)
menu to “Lo” using the push buttons or CoolCloud HVAC
phone application.
auxIlIarY alarM swItcH
The control is equipped with a 24VAC Aux Alarm to be
used for a condensate switch install (designated by
CONDENSATE IN/OUT on the control). By default, the
connected AUX switch is normally closed and opens when
the water level in the evaporator coil base pan reaches an
undesirable level. The control responds by displaying an
EEf error code and turning off the outdoor condensing unit.
If the AUX switch is detected to be in the closed position
for 30 seconds, normal operation resumes and the error
message is no longer displayed.
PusH Button Menu
LEFT CENTER
RIGHT
fIgure 56
The furnace includes three on-board push buttons allowing
users to navigate indoor and outdoor system menus. The
Right and Left buttons allow the user to scroll through the
main menus and to then scroll through available options
within specic menus. The Center button is used to enter
into a main menu and to then permanently select options
within those menus.
note: after scrollIng to tHe DesIreD oPtIon
wItHIn a Menu, tHat oPtIon MaY Be flasHIng on tHe
7-segMent DIsPlaYs. tHIs InDIcates tHe oPtIon Has
not Been offIcIallY selecteD. PressIng tHe center
Button two tIMes wIll select tHat oPtIon. tHe fIrst
Press wIll stoP tHe flasHIng. tHe seconD wIll Make
tHe selectIon offIcIal anD return You to tHe MaIn
Menu.
R
W
DH/Y2
24 VAC
Thermostat
Indoor
Board Terminal
Connections
C
G
Optional
Optional
Dehum
R
W
C
G
gas Heat onlY
fIgure 55
2. Download the CoolCloud HVAC phone application
and use it to congure/test furnace 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.
gas furnace testIng
a. Two-stage Operation using the CoolCloud
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.
3. Conrm thermostat heating call functions properly
with equipment.
DeHuMIDIfIcatIon
Dehumidication allows the furnace’s circulator blower to
operate at a reduced speed during a combined thermostat
call for cooling demand with a parallel humidistat. This
lower blower speed increases dehumidication of the
conditioned air as it passes through the indoor coil. The
control board is equipped with a 24 volt dehumidication
input (DH) located on the thermostat wiring connector.