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• Wiring for 1H and 1C thermostat:
• Condensate overflow switch:
The unit will accommodate a
remote condensate overflow
switch. To enable, remove
jumper J1, and connect the
installer provided condensate
overflow device to CN5 per
below. When an overflow
condition is present,
the device should open
connection signaling the unit
to turn off the system.
TO
HUMIDIFIER
WORK
HUMIDISTAT
24V control signal or 208/230V power supply
CN23
TO HUMIDIFIER
HUMIDISTAT
24-VAC
G
C
WATER LEVEL SWITCH
CN5
J1
CN33
ALARM
R
L
G
B
W
E
C
Y1
DH
W1 W2
R
B
W D
L
C
Y1 Y2
INDOOR UNIT
OUTDOOR UNIT
W
Y
G
C
R
THERMOSTAT
• The fault warning
Alarm output:
An alarm output (CN33)
can be utilized if actions
are required when a fault is
present. This is a passive outlet
port, so you will need to input
a voltage signal. The relay
is normally-open for normal
operation, and closed when a
fault condition is active.
• Humidifier control:
Optional function wiring:
Alarm
interface
Conden
sate
overflow
switch
interface
Indoor and
outdoorunit
communication
interface
UVLED
Condensate
overfl ow switch
interface
W
iring
Note:
This is the least preferred method of control wiring and should
only be used for emergency situations. Full comfort capacity
may not be achieved using this method.
Summary of Contents for 18K
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