General Specifications
Air-Cooler Condenser
The air cooled condenser coil is consist of staggered rows of 3/8’’ OD seamless copper tube, mechanically
expanded onto die formed aluminum fins to ensure optimum heat exchange capability.
Condenser Fan Motor
To achieve the high air change requirement, the unit is equip with the high air flow propeller fan which is
made of acryl styrene resin. The fan is direct driven by weather proof single phase motor to ensure reliable
continuos operation.
Evaporator
The heat exchanger is made of stainless steel plates closely arranged and brazed together to ensure high
heat exchange efficiency. The complete heat exchanger is insulated with thermal closed cell nitric rubber
foam to give optimum thermal insulation.
Refrigerant Circuit
The refrigerant circuit is factory brazed and evacuated before accurately charged with R22 to ensure
optimum operating requirement. To ensure flawless continuous operation, each refrigerant circuit is
equipped with a carefully sized thermostatic expansion valve and both thermostatic expansion valve and
capillary tube in the heat pump model.
Additional Safety Proctection
The units are equipped with intelligently designed safety control to ensure continuous safe operation. High
and low pressure switch is provided in cooling models to prevent the compressor damage resulting from
both abnormally high discharge head pressure or low pressure due to insufficient gas. The heat pump
models are provided with a high pressure switch.
The compressors of the whole range are provided with crank case heater to prevent liquid migration during
the off cycle and also to ease the start up of the unit.
The standard electronic controller provides accurate water temperature control in the circuit by closely
monitoring and reacting to the input from the water entering temperature, water leaving temperature and
ambient air temperature.
Flow switch is provided in the unit to protect against damage to the water pump.
During abnormal condition the electronic controller will turn the unit off and the then display the faulty of
operation. (See Troubleshooting sheet)
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