!
CAUTION
Failure to follow this caution may result in
equipment damage or improper operation.
Improper wiring may damage unit electronics.
Common busing is not permitted. Damage or
erratic operation may result.
UNIT DAMAGE HAZARD
WALL THERMOSTAT TERMINAL (Continued)
NOTE:
● Use terminal 4-way for heat pump connection only.
● If the chosen thermostat has a compressor
protection time delay function, it should be set for
a delay of greater than three minutes.
● Wall thermostat must be heating changeover
4-way valve.
● 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.
● The range of set temperature of the wall
thermostat must be in accordance with the unit
type: 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; the unit can operate two electrical
heaters (units with two electrial heaters only).
Otherwise, operate one electrical heater.
● Please do not remove the control panel.
● FRONT DESK CONTROL
The controller can handle a switch signal from
FC(L) and FC(N) input, called front desk control.
Input must be 24VAC. If the 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. If the DIP switch is on the
DOWN position, the unit will be turned off;
otherwise, the unit runs in normal control.
See illustration below.
9
Summary of Contents for 1PTC07A-3.5
Page 15: ...Printed in PRC...
