OIL CAPACITIES (U.S. GPM)
APPLICATION: SCREW COMPRESSOR OIL PUMP
RELIEF REGULATOR (HA4AL)
LIQUID CAPACITIES (U.S. GPM)
APPLICATION: REFRIGERANT PUMP RELIEF
REGULATOR (HA4AL)
Capacities assume no gas flashing. No capacity correction
required for temperatures between –40°F (–40°C) and +40°F
(+4.4°C).
Capacities based on oil with less than 300 SSU viscosity.
† Bypass from intermediate pressure at saturation temperature to booster suction.
*These capacities are not for hot gas defrost relief. See the chart in the middle of this page.
**Optional 25% and 50% reduced capacity ¾" (20mm) plugs are available.
Discharge gas capacities are based on +15°F (+10°C) evaporator temperature.
*Or an outlet pressure regulator with electric shut-off (HA4AOS).
Evaporator tons at 10°F (5.6°C) TD (temperature differential), valve capacities are conservative. These capacities can be
modified up or down depending on type of evaporator, temperature, mass, frost thickness, defrosting time, etc. Typical
for –20°F (–28.9°C) evaporator.
HOT GAS DEFROST NOMINAL VALVE SIZING CAPACITIES
(DEFROSTING EVAPORATOR SIZE TONS)
GAS CAPACITIES (TONS)*
(1 Ton=12,000 Btu/hr=3.517 kW=3042 kcal/hr)
PORT SIZE
(mm)
R717
ΔP=30 psi
(2 bar g)
R22
ΔP=30 psi
(2 bar g)
¾
" ( 20 )
45
30
1
" ( 25)
82
56
1¼
" ( 32)
114
78
1½
" (40 )
256
168
2
" ( 50 )
324
230
2½
" ( 65)
553
377
3
" ( 80 )
733
505
PORT SIZE
(mm)
OIL
ΔP=30 psi
(2 bar g)
¾
" ( 20 )
48
1
" ( 25)
87
1¼
" ( 32)
122
1½
" (40 )
260
2
" ( 50 )
350
2½
" ( 65)
574
3
" ( 80 )
775
REFRIG.
APPLICATION
PORT SIZE (mm)
¾" (20)
1" (25)
1¼" (32)
1½" (40)
2" (50)
2½" (65)
R717
Hot Gas Solenoid*
9 to 15
15 to 28
28 to 39
39 to 73
73 to 106
106 to 165
Defrost Relief
Regulator
17 to 24
24 to 45
45 to 60
60 to 96
96 to 140
140 to 225
R22
Hot Gas Solenoid*
6 to 8
8 to 15
15 to 20
20 to 32
32 to 47
47 to 75
Defrost Relief
Regulator
6 to 8
8 to 15
15 to 20
20 to 32
32 to 47
47 to 75
SIZE
(mm)
DISCHARGE GAS REGULATOR
HOT GAS BY-PASS TO SUCTION
R717
R22
R717
R22
+86ºF (+30ºC)
CONDENSING
+140ºF (+60ºC)
DISCHARGE
+86ºF (+30ºC)
CONDENSING
+140ºF (+60ºC)
DISCHARGE
+86ºF (+30ºC)
CONDENSING
+140ºF (+60ºC)
DISCHARGE
+15ºF (–9.4ºC)
CONDENSING
+15ºF (–9.4ºC)
DISCHARGE †
+86ºF (+30ºC)
CONDENSING
+140ºF (+60ºC)
DISCHARGE
+15ºF (–9.4ºC)
CONDENSING
+15ºF (–9.4ºC)
DISCHARGE †
2 psid
5 psid
2 psid
5 psid
¾" ** (20)
17
27
6.1
9.5
88
27
32
12
1" (25)
31
49
11
17
160
49
58
22
1¼" (32)
44
69
16
24
224
68
81
31
1½" (40)
94
147
33
52
479
146
173
66
2" (50)
126
197
45
70
643
196
232
89
2½" (65)
206
323
73
115
1054
321
380
146
3" (80)
279
437
99
155
1424
434
513
197
4" (100)
445
698
158
241
Hot gas bypass capacities are based on above given temperatures. Liquid
temperature is the same as condensing temperature. Evaporator temperature
+40°F (+4.4°C) or less for +86°F (+30°C) condensing; –22°F (–30°C) evaporator
for +15°F (–9.4°C) condensing.
5" (125)
649
1017
230
361
6" (150)
1108
1735
393
616
5
R429d
AUG 2015