83003702.K Operating Instruction
Type KPC 108-L-U/S
page 7
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Compressor-unit, consisting of:
Stable base-frame construction made of steel-profiles, powder-coated. Vibration-absorbing-mounted fully hermetic
SCROLL compressor with motor and suction-gas cooling. Complete special shut-off valves placed at the pressure and
suction side. Refrigerant power-inputs of flexible design. Refrigerant circuit with collector, filter-dryer, inspection glass
and moisture indicator, solenoid valve, service-valves as well as the complete internal copper-pipe work with refrigerant
and special oil filling.
Thermostatic expansion-valve and plumb high-capacity copper-brazed plate heat exchanger – evaporator. The plates
with optimized profile for efficiency heat transfer.
Evaporator and suction-side pipe work with diffusion-seal insulation.
Safety pack, consisting of:
Crankcase heater, high / low pressure switches as well as protective motor relay.
Shut-off ball valve at the cooling medium entry, dirt absorber, expansion tank, feeder and safety valves. High-pressure
centrifugal-pump adjusted to the overall system, filling and drainage valves with piping terminal, automatic air vent,
manometers and machine-thermometers in forward and return flow. Quantity balancing-valve, connection piece for
computer terminal in cooling medium supply.
Temperature control as hot gas by-pass control with solenoid valve.
Electronic digital temperature controller with control range limitation for set point and actually temperature.
Condenser fan control via pressure transmitter in refrigerant circuit and frequency inverter.
The high pressure pressostat (pressure switch) for system safety.
Internal cooling medium copper-brazed piping with diffusion-seal insulation.
All necessary block and clip angles used for refrigerant und cooling medium construction are made of rust-proof and
powder-coated material.
Switch-box with front door integrated in cooling block, system of protection IP 54, wired according to VDE-regulations
with a main switch, supply-check indicator lamp, phase monitoring relay and Siemens components such as, overload
release, sliding-panel, motor safety-switch, control-switch and indicator lamps.
A pump post-relay for the safety of the vaporizer as well as pot. proof contacts for "supply-control" and "collective fault
messages". It is still possible to connect a remote board.
The switch box of the outdoor version contains a switch box heater and a switch box ventilator.
