Regulator series ACP and CPHE are hot gas bypass regulators and serve the purpose of compensating excess compressor capacity. Thus they prevent the generation of evaporator pressures below predetermined levels. In case of hot gas injection into the suction line, a liquid injec-
Capacity regulator (hot gas bypass)The valve is set to start opening at an evaporating temperature of +2°C/+36°F. The setting can be changed by turning the setting spindle. The temperature at which the valve starts opening is increased by turning the spindle anti-clockwise and decreased by turning the spindle clockwise. Speci cally designed for hot gas applications.
regulating valve (CRO or other type), the bypass valve can bypass to the low side at the evaporator inlet or the suction line without difficulties. The only decision necessary is whether an internally or externally equalized valve is required and this depends on where the hot gas enters the low side. The pressure setting of the
HOT GAS REFRIGERANT REHEAT SYSTEMSWith the hot gas bypass option now no longer needed, additional energy savings can be attained with the ability to modulate compressor operation down to 10% of total capacity. The power input to the condenser fan(s) is also reduced as head pressure is tracked. 4
Hot Gas Bypass (HGBP) and the Pressure Enthalpy Diagram Mar 06, 2018 · Item 1above, is the solenoid valve, the valve is to prevent the addition of discharge bypass gas when it isnt wanted. The solenoid valve is usually controlled by a pressure sensing switch which activates if the suction pressure drops below a certain pressure, for air-over evaporators this should be the saturation pressure that coincides with 36 degrees Fahrenheit.
Hot gas bypass regulator Type TGHE Max. working pressure:PS/MWP = 46 bar / 667 psig Max. test pressure:P test = 51 bar / 740 psig Refrigerants:R22, R407C, R404A/R507, R410A, R134a For complete list of approved refrigerants, go to danfoss TGHE 10 TGHE 20 / TGHE 40 OK Min. 5% Ag Max. 700 °C / 1300 °F Max. 110 °C / 230 °F Max. 700 °C / 1300 °F
Standard Direct Expansion (DX) Cooling Air Conditioning Hot Gas Bypass Hot gas bypass consists of a pressure-operated valve located on the discharge line and additional refrigerant piping from the valve to the evaporator (DX) coil. Hot refrigerant vapor enters the hot gas bypass valve from the compressor and is routed to
Trane Engineers Newsletter, volume 32-2Hot Gas Bypass Its not enough to deliver an HVAC system that meets the unique needs of each application. The owner also deserves a system that is the most reliable and the least costly to operate. In specific cases, adding hot gas bypass to the refrigeration system may be necessary in order to achieve all three goals. But more often than not,
Hot gas bypass is recommended when the load on an evaporator varies and operation of the air conditioning system is desired at lower than design conditions. Additionally, hot gas bypass is used when the evaporator coil is designed for comfort cooling (latent and sensible loads) versus precision cooling (all sensible loading). If return