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HEAT PUMP WATER HEATER COMPRESSOR CRITERIA FOR LONG LIFE
Item
Refrigerant
Discharge pressure
2
MPa{kgf/cm
G}
Suction Pressure
2
MPa{kgf/cm
G}
Compressor case bottom temp
Motor winding temp.
Accumulator temp
N o t e s : O v e r l o a d c o n d i t i o n s h o u l d n o t b e c o n t i n u o u s .
8 0
7 0
6 0
5 0
4 0
3 0
2 0
1 0
0
- 3 5
Condensing temperature
Evaporation Temperature
SYSTEM
Operating Envelope
R410A
4.762 MAX
（condensing
temperature
:<70℃）
0.272~1.652
(Evaporation Temperature ：-30/-25℃~25℃) It can also be
0.101~0.172 MPa when in transition,but should not be used when it is
less than 0.101 MPa.
99 ℃or below and 6 degrees higher than condensing temperature
R a t e d v o l t a g e :
105℃
Higher than outlet pipe of evaporator
P4
P3
- 3 0
- 2 5
- 2 0
- 1 5
- 1 0
Evaporating Temp.（℃）
Table 2
R454C
3.465 MAX
（condensing
temperature
:<75℃）
0.172~1.084
MAX
P5
- 5
0
5
1 0
1 5
raph 1(a) 1(a)
G
P1
P2
70℃
28℃
25℃
25℃
R454B
4.439 MAX
2.633 MAX
（condensing
（condensing
temperature
temperature
:<70℃）
:<80℃）
0.106~0.665
0.251~1.543
Ra t e d Voltage±10%:
120℃ MAX
R410A/R452B/R454B
P1
P2
2 0
2 5
3 0
P3
P4
5℃
45℃
70℃
-30℃
-30℃
PAGE:6/29
R134a
P5
-5℃
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