AIREDALE EasiCool - Page 13

EasiCool™Precision Air Conditioning
100
90
80
70
60
50
40
30
20
10
Capacity (%)
0
1
2
EER
Fully Closed Fully Open
Minimum
Maximum
Hot Gas Re-Heat (HGRH)
(X Models)
The HGRH system consists of a heating coil and solenoid valve(s) and can be tted to units with humidication selected.
The microprocessor monitors the temperature and humidity setpoints and initiates HGRH to provide optimum system
efciency.
HGRH may be tted instead of electric heating or low pressure hot water.
During dehumidication, the hot gas re-heat coil re-heats the cooled air from the evaporator coil using hot gas from
the discharge line to maintain the room setpoint. Normally reheating of the air during dehumidication is performed by
electric heating which requires additional power input. By utilising the available hot gas, the HGRH option does not
require additional power input and is therefore far more energy efcient than electric heating.
Electric Heat Energy Input
Comparable HGRH Energy Input
Average Energy Input Comparison HGRH vs Electric Heat
Suction Throttle Valve
The valve can be selected for units tted with EEVs.
An electrically operated suction throttle valve can be tted to provide accurate capacity control from 50% to 100%
depending on the room load. Precise temperature control is obtained as a result of modulating the refrigerant ow in the
evaporator by throttling the valve on the suction line.
1 Capacity @ 24°C / 45% RH return air conditions
2 EER @ 24°C / 45% RH return air conditions
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EasiCool Technical Manual 7525389 V1.8.0_05_2016
Introduction