38
The terminal can be configured to enable dehumidification
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 dehumidification 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
dehumidification is required, set the “dHL” (Dehum Logic)
menu to “Lo” using the push buttons or
CoolCloud
HVAC
phone application.
a
uxIlIarY
a
larM
s
wItcH
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.
P
usH
B
utton
M
enu
LEFT
CENTER
RIGHT
f
Igure
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 specific menus. The Center button is used to enter
into a main menu and to then permanently select options
within those menus.
note: a
fter
scrollIng
to
tHe
DesIreD
oPtIon
wItHIn
a
Menu
,
tHat
oPtIon
MaY
Be
flasHIng
on
tHe
7-
segMent
DIsPlaYs
. t
HIs
InDIcates
tHe
oPtIon
Has
not
Been
offIcIallY
selecteD
. P
ressIng
tHe
c
enter
Button
two
tIMes
wIll
select
tHat
oPtIon
. t
He
fIrst
Press
wIll
stoP
tHe
flasHIng
. t
He
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
g
as
H
eat
o
nlY
f
Igure
55
2.
Download the
CoolCloud
HVAC phone application
and use it to configure/test furnace operations.
note: w
Hen
new
VersIons
of
B
luetootH
c
oMMunIcatIon
s
oftware
anD
f
urnace
c
ontrol
s
oftware
are
aVaIlaBle
,
tHe
PHone
aPPlIcatIon
notIfIes
tHe
user
. s
oftware
uPDates
are
classIfIeD
as
eItHer
oPtIonal
or
ManDatorY
anD
InstalleD
BY
usIng
tHe
PHone
aPPlIcatIon
. e
nsure
all
ManDatorY
software
uPDates
HaVe
Been
InstalleD
. r
eVIew
notes
for
oPtIonal
software
uPDates
anD
Install
If
necessarY
.
g
as
f
urnace
t
estIng
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.
Confirm thermostat heating call functions properly
with equipment.
D
eHuMIDIfIcatIon
Dehumidification 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 dehumidification of the
conditioned air as it passes through the indoor coil. The
control board is equipped with a 24 volt dehumidification
input (DH) located on the thermostat wiring connector.
