13
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Front Desk Control
The PTAC can be remotely turned on and off via the front desk
control by applying a 24VAC signal across terminals FC(L) and
FC(N). If 24VAC is present, the PTAC will turn on.
If 24VAC is not present, the PTAC will turn off.
The FRONT DESK CONTROL dip switch can turn the front
desk control feature on and off. If the dip switch is in the
DOWN position, the front desk control feature is disabled.
If the dip switch is in the UP position, the front desk control
feature is enabled.
Notes
• Use terminal 4-way for heat pump connection only.
• The PTAC has a built-in 3-minute compressor protection time. If the compressor protection time
on the thermostat is set for less than 3 minutes, the default PTAC 3-minute compressor protection
time will take precedence.
• If connecting thermostat to a heat pump unit, thermostat must be set to heat pump operation,
with the 4-way valve connection set to be energized in heat mode.
• For thermostats that have only one fan speed output (on or auto), the fan speed is determined by
how the terminal connector is wired. If low fan is desired, wire the G output from the thermostat
to (LOW-FAN) on the unit’s terminal block. If high fan is desired, wire the G output from the
thermostat to (HI-FAN) on the unit’s terminal block.
• A connected thermostat will only control the set temperature of the PTAC within the temperature
range setting of the PTAC.
• For 15k BTU resistance heat units: if the wall thermostat only has one electrical heater output, connect
heater output to HEAT1; jumper HEAT1 and HEAT2 together
• Please do not remove the control panel.
Recommended Wired and Wireless Thermostat Settings and Connections
10
Dip switch for FRONT
DESK CONTROL
Fig.4
DIP Switch Settings for All Thermostats (U = Up, D = Down)
S8
S7
S6
S5
S4
S3
S2
S1
A4
A5
S11 S10
S9
X
Upper Blue
Lower Blue
U
D
D
U
U
U
D
D
U
U
U
U
D
U
D
U
Connections Between PTAC Terminal Block & Thermostat Terminal Block
Thermostat Model
PTAC Type/
BTU Rating
Low
Fan
Hi
Fan
4-Way Heat1 Heat2 Comp 24V(N) 24V(L)
Pro1 Wireless
Thermostat
Resistance Heat
(7k, 9k, 12k models only )
GL
GH
-
W
-
Y
C
R
Resistance Heat
(15k models only)
GL
GH
-
W
W
Y
C
R
Heat Pump (all models)
GL
GH
O/B
-
-
Y
C
R
Honeywell PRO3000
Wired Thermostat
Resistance Heat
(7k, 9k, 12k models only)
-
G
-
W
-
Y
C
R
Resistance Heat
(15k models only)
-
G
-
W
W
Y
C
R
Heat Pump (all models)
-
G
B
-
-
Y
C
R
