4000
Ͳ
LC
Series
D4580880
Ͳ
01
Page
16
of
61
5.0 Control System:
The unit consists of heating, cooling components, fans, and control
components. The major cooling components include a compressor (heat
moving component), condenser (heat rejection part), evaporator (heat
absorption part) and expansion valve (refrigerant flow control devices).
Heating is accomplished with the use of resistance heaters imbedded in
the evaporator assembly. Controls consists of a circulation fan, a PLC
ramping controller, RTD temperature sensors, stepper motor control hot
gas control, solid state relay and miscellaneous other hardware.
6.0 Operation:
1. POWER
CONTROL:
Electrical power is provided via a power cord. Internally, power passes through
a 3-pole main circuit breaker, which is accessible inside the main control
enclosure.
The only user accessible means of power disconnection is by unplugging the
power cord from the wall receptacle.
2. UNIT
OPERATION:
All unit operation is performed using the panel mounted touch screen display.
3. Basic
Operation:
After unit setup, plug the power cord(s) into the properly sized receptacles.
The panel mounted display will turn on with the Home screen being displayed.
The present interior chamber temperature will be displayed.
