Quantum 270-11AC3-134 User Manual

Page 34

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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

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