Use And Care Manual

 Page 15 
Wall Thermostat
Ter minal
CAUTION
UNIT DAMAGE HAZARD
• Fail
ure to follow these instructions
may result in equipment damage
or improper operation.
• Improper wiring may damage
unit’s electronics. Shared branch
circuit is not permitted. Damage
or erratic operation may result if
not followed.
NOTES
FRONT DESK CO
NTROL
The controller can handle a switch signal
from FC (L) and FC (N) input, called front
desk control. Input must be 24VAC. If system
doesn’t receive a 24VAC signal, it will turn the
unit off; otherwise, the unit runs in normal
control.
- The DIP switch can control the FRONT
DESK CONTROL feature. The DIP switch
is on the DOWN position, the unit will be
turn off; otherwise, the unit runs in normal
control. See Fig B.
• Use terminal 4-way for heat pump
connection only.
• Suggest to set the compressor
protection time more than 3 minutes in
the wall thermostat. If set less than 3
minutes, the compressor will still delay
start by 3 minutes.
• Wall thermostat must have a 4-way
valve output.
• 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
units terminal block. If High fan is
desired, wire the G output from the
thermostat to (HI-FAN) on the units
terminal block.
• The range of set temperature of the
wall thermostat must be in the
allowable range of the DIP switch
setting.
• The wall thermostat must also have
the correct unit type setting: heat
pump or no heat pump.
• If the wall thermostat has only one
electrical heater output, connect the
two terminals of HEAT 1 and HEAT 2
together to form one terminal and
then connect. Otherwise, connect
both HEAT 1 and HEAT 2 terminals to
the wall thermostat heater outputs.
• Please do not remove the control
panel.
Fig. B
Dip switch of FRONT
DESK CONTROL