Quantum 67ACW2-134 Owner's Manual
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Owners Manual Quantum Energy Technologies6l: Optional Controls6l.1: Hot Gas Bypass (for 67ACW- 417, 67ACP2-xxx, 67ACB-xxx)Hot gas bypass is a system for maintaining evaporator pressure at or above a minimum value. Thepurpose for doing this is to keep the velocity of the refrigerant, as it passes through the evaporator,high enough for proper oil return to the compressor when the ambient temperature is very low.The solenoid valve should be wired to open whenever the liquid line solenoid valve is energized.This can be accomplished by wiring the hot gas solenoid in parallel with the liquid line solenoid.The pressure control is factory set to begin opening at 200kPa.6m: Trouble ShootingWARNINGThe hot gas line may become hot enough to cause injury in a very short time.Avoid contact during valve maintenance.WARNINGTrouble shooting can present risks of severe personal injury or death from burns,cuts, electrocution, strangulation and asphyxiation. Troubleshooting must be doneby trained, experienced technicians only.Document Number : QDC0049PD-5 Page 28 of 33 |
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