Keltech KRAD M Series, Инструкция по эксплуатации, Страница: 9 / 62

Page 9
8) Refrigerant circuit controls
A) Liquid refrigerant injection: The liquid refrigerant is into the evaporator by a control valve. This valve is a
thermostatic or pressostatic one maintaining a constant overheats of the refrigerant in the evaporator(s).
B) Constant evaporating pressure: In the dryers equipped with a by-pass valve, the evaporating pressure is
kept constant by a controlled injection of hot gas from the high-pressure side into the low-pressure
section of the circuit.
9) Condensate drain - trap assembly
Dismantling the drain is easy because it can be isolated from the air circuit under pressure with a ball valve.
The drain has to be depressurized before being dismantled.
10) Heat Exchanger Modular design
A) The dryers are equipped with a compact Mono Bloc Heat Exchanger module.
This assembly has been specially designed to dry compressed air and is made of:
1) An Economiser which pre-cools the entering hot air with the out flowing cold air.
2) An air / Thermal mass refrigerant exchanger cooling down the compressed air.
3)
A centrifugal separator concentrating all condensates and requiring no maintenance.
Air Cooled
System