Owner’s Manual Quantum Energy Technologies
A.5: Testing Undercharge Or Overcharge Of Refrigerant
Unlike normal refrigerating or air conditioning systems, the QUANTUM heat pump operates under a very wide range of evaporating and condensing
temperatures. To identify undercharge or overcharge of refrigerant gas in the system, three parameters need to be checked.
1. Current Draw
2. System Pressures
3. Bubbles through sight glass on the receiver / filter-dryer
A.6: Water Temperature, Condensing Pressure & Amperage – R134a Units
Water Temperature Approx. Discharge Gauge Pressure Nominal Current Draw (varies with evaporating temperature)
In Tank ℃ kPa PSI 800 Watt
Compressor
Code RE165VHAMC
1100 Watt Compressor
Code RE231VHAMC 1700 Watt Compressor
Code PE39VPEMT
30
40
50
55
60
900-1050
1200-1380
1580-1800
1850-2000
2100-2300
130-150
175-200
230-260
270-290
305-335
2.3-2.6A
2.8-3.0A
3.4-3.7A
3.8-4.0A
4.1-4.4 A
3.2-3.5A
3.8-4.1A
4.7-5.0A
5.2-5.5A
5.6-6.0A
6.0-6.3A
6.7-7.0A
8.0-8.2A
8.6-9.0A
9.2-9.5A
A.7: Suction Pressure – R134a Units
Typical Suction Pressure (Back Pressure – Low Side)
Ambient Temperature ℃ Evaporator Temperature ℃ kPa PSI
15
20
25
30
5
10
15
20
210
300
390
470
30
45
60
70
Document number: QDC0030PD-11 Page 34 of 40