3DJH
31-5000750 Rev. 1
°F
Psig
°F
Psig
°F
Psig
°F
Psig
°F
Psig
°F
Psig
°F
Psig
°F
Psig
32
100.8
48
137.1
63
178.5
231.6
110
365.0
125
141
545.6
33
64
181.6
80
235.3
111
370.0
126
451.8
142
552.3
34
105.0
50
142.2
65
184.3
81
112
375.1
127
457.6
143
35
107.1
51
144.8
66
187.7
82
242.7
303.8
113
380.2
128
463.5
144
36
52
147.4
67
83
246.5
308.2
114
385.4
145
572.8
37
111.4
53
150.1
68
84
250.3
312.7
115
130
475.6
146
38
113.6
54
152.8
85
254.1
100
317.2
116
131
481.6
147
586.8
115.8
55
155.5
70
200.6
86
258.0
101
321.8
117
401.3
132
487.8
148
40
118.0
56
158.2
71
87
262.0
102
326.4
118
406.7
133
601.0
41
120.3
57
161.0
72
207.2
88
266.0
103
331.0
412.2
134
500.2
150
608.1
42
122.6
58
73
210.6
270.0
104
335.7
120
417.7
135
506.5
151
615.4
43
125.0
166.7
74
214.0
274.1
105
340.5
121
423.2
136
152
622.7
44
127.3
60
75
217.4
278.2
106
345.3
122
428.8
137
153
630.1
45
61
172.6
76
282.3
107
350.1
123
434.5
138
525.8
154
637.5
46
132.2
62
175.4
77
224.4
286.5
108
355.0
124
440.2
532.4
155
645.0
47
134.6
78
228.0
360.0
140
Table 32. HFC-410A Temperature (°F) - Pressure (Psig)
Figure 53. Using HFC-410A Subcooling Method - High Speed (High Capacity)
1. THE DIAGNOSTIC SCREEN ON THE THERMOSTAT OR OUTDOOR CONTROL 7-SEGMENT DISPLAY WILL SHOW INDOOR AND
OUTDOOR MOTOR CFMS OR RPMS.
2. MEASURE OUTDOOR AMBIENT TEMPERATURE.
3. CONNECT GAUGE SET.
4. CHECK LIQUID AND VAPOR LINE PRESSURES. COMPARE PRESSURES WITH COOLING MODE NORMAL OPERATING
PRESSURES IN THE APPLICABLE CHARGING STICKER, NORMAL OPERATING PRESSURES AT MAXIMUM CAPACITY.
NOTE
-
THE REFERENCE TABLE IS A GENERAL GUIDE. EXPECT MINOR PRESSURE VARIATIONS. SIGNIFICANT
DIFFERENCES MAY MEAN IMPROPER CHARGE OR OTHER SYSTEM PROBLEM.
5. SET THERMOSTAT FOR HEAT/COOL DEMAND, DEPENDING ON MODE BEING USED:
USING COOLING MODE
— WHEN THE OUTDOOR AMBIENT TEMPERATURE IS 60°F (15°C) AND ABOVE. TARGET
SUBCOOLING VALUES (MAXIMUM / 100% CAPACITY) IN APPLICABLE CHARGING STICKER ARE BASED ON 70 TO
80°F (21-27°C) INDOOR RETURN AIR TEMPERATURE; IF NECESSARY, OPERATE HEATING TO REACH THAT
TEMPERATURE RANGE; THEN SET THE INITIAL COOLING DEMAND AT MAXIMUM CAPACITY. THE PREFERRED METHOD IS
TO USE THE “CHARGE MODE” JUMPER ON THE OUTDOOR CONTROL. SEE CHARGE MODE JUMPER SECTION ON PAGE 80.
WHEN PRESSURES HAVE STABILIZED, CONTINUE WITH STEP 6.
6. READ THE LIQUID LINE TEMPERATURE; RECORD IN THE LIQº SPACE.
7. READ THE LIQUID LINE PRESSURE; THEN FIND ITS CORRESPONDING TEMPERATURE IN THE TEMPERATURE/ PRESSURE
CHART LISTED IN THE APPLICABLE CHARGING STICKER AND RECORD IT IN THE SATº SPACE.
8. SUBTRACT LIQº TEMPERATURE FROM SATº TEMPERATURE TO DETERMINE SUBCOOLING; RECORD IT IN SCº SPACE.
9. COMPARE SCº RESULTS WITH APPLICABLE CHARGING STICKER, BEING SURE TO NOTE ANY ADDITIONAL CHARGE FOR
LINE SET AND/OR MATCH-UP.
10. IF SUBCOOLING VALUE IS GREATER THAN SHOWN IN APPLICABLE CHARGING STICKER FOR THE APPLICABLE UNIT,
REMOVE REFRIGERANT; IF LESS THAN SHOWN, ADD REFRIGERANT.
11. IF REFRIGERANT IS ADDED OR REMOVED, REPEAT STEPS 6 THROUGH 10 TO VERIFY CHARGE.
12. DISCONNECT GAUGE SET AND RE-INSTALL BOTH THE LIQUID AND SUCTION SERVICE VALVE CAPS.
USE
COOLING
MODE
USE
HEATING
MODE
60ºF
(15ºC)
SATº
LIQº
–
SCº
=
SUBCOOLING
CHARGING METHOD
(All charging
MUST
be performed while system is operating
either at maximum speed or 100% demand.)
Summary of Contents for GE NS22HM
Page 7: ...3DJH 31 5000750 Rev 1 Figure 2 Component Locations NS22H24MA4 and NS22H36MA4...
Page 58: ...3DJH 31 5000750 Rev 1 24 AND 36 HP MODEL Figure 24 Wiring Diagram Unit Wiring Diagram...
Page 78: ...3DJH 31 5000750 Rev 1 24 AND 36 HP MODEL Figure 45 VAC Voltage Check...
Page 103: ...3DJH 31 5000750 Rev 1 Figure 54 NS22H24M NS22H36M Charging Label...
Page 104: ...3DJH 31 5000750 Rev 1 Figure 55 NS22H48M NS22H60M Charging Label...
Page 105: ...3DJH 31 5000750 Rev 1 Notes...
