Refrigerant Circuit Guideline; Heat Of Extraction/Rejection Data - Geostar ASTON Series Installation Manual

ASTON DUAL-CAPACITY OUTDOOR SPLIT SERIES INSTALLATION MANUAL

Refrigerant Circuit Guideline

Symptom
Under Charged System (Possible Leak)
Over Charged System
Low Air Flow Heating
Low Air Flow Cooling
Low Water Flow Heating
Low Water Flow Cooling
High Air Flow Heating
High Air Flow Cooling
High Water Flow Heating
High Water Flow Cooling
Low Indoor Air Temperature Heating
Low Indoor Air Temperature Cooling
High Indoor Air Temperature Heating
High Indoor Air Temperature Cooling
Restricted TXV (Check Service Advisory)
Insufficient Compressor (Possible Bad Valves)
TXV - Bulb Loss of Charge
Scaled Coaxial Heat Exchanger Heating
Scaled Coaxial Heat Exchanger Cooling
Restricted Filter Drier

Heat of Extraction/Rejection Data

Model GPM
3.0
Part
5.0
Load
7.0
026
4.0
Full
6.0
Load
8.0
4.0
Part
6.0
Load
8.0
038
5.0
Full
7.0
Load
9.0
5.0
Part
8.0
Load
11.0
049
6.0
Full
9.0
Load
12.0
6.0
Part
10.0
Load
14.0
064
8.0
Full
12.0
Load
16.0
10.0
Part
13.0
Load
16.0
072
12.0
Full
15.0
Load
18.0
Head
Pressure
Low
High
High
Low
Low/Normal
High
Low
Low
Normal
Low
Low
Low
High
High
High
Low
Low
Low
High
Heat of Extraction (kBtuh)
30°F 50°F 70°F
13.1 17.6
9.4 13.8 18.6
9.6 14.1 18.9
17.8 23.4
13.4 18.8 24.7
13.6 19.3 25.1
17.9 23.3
12.8 18.7 24.5
13.9 19.7 25.2
25.1 31..5
18.7 26.2 33.2
19.1 26.9 34.3
24.0 29.5
19.2 26.4 32.6
19.8 27.5 34.3
33.3 40.6
26.0 34.7 42.8
26.5 35.7 44.2
31.0 39.2
21.6 31.4 40.9
22.6 32.6 41.7
40.8 52.7
31.9 43.8 55.1
32.2 44.7 56.8
36.4 46.5
25.2 36.7 48.5
26.7 38.2 49.4
48.3 62.7
37.2 51.6 65.4
37.6 52.7 67.5
Suction Compressor
Superheat
Pressure Amp Draw
Low Low
High High
High High High/Normal
Low Low Low/Normal
Low/Normal Low
High High
Low Low
High Normal
Low Normal
Low Low
Low Low
Low Low Normal/Low
High High Normal/High
High High
Low Normal/Low
High Low
Low Low
Low Low Normal/Low
High High Normal/Low
Check temperature difference (delta T) across filter drier.
90°F 30°F
21.5
22.6 21.7
23.0 21.9
28.5
29.9 29.9
30.5 30.1
28.1
29.8 29.8
29.8 30.3
36.1
38.6 41.8
40.0 42.0
33.7
37.5 40.6
39.9 40.0
46.1
49.1 56.0
50.9 56.1
46.1
49.7 52.4
49.8 52.2
64.7
65.8 66.8
68.6 67.2
54.7
59.1 57.7
59.1 57.3
69.0
70.9 73.6
73.5 74.1
32
Air Temp.
Subcooling
Differential
High Low
Normal High Normal/Low
Low High
High High
Low High
High Low
Low High
High Low
High Normal Normal
Low High Normal
Normal High Normal
High
Normal/Low
High Low
High High
High Normal/High
High High
High
Low
Heat of Rejection (kBtuh)
50°F 70°F
23.5 22.9
23.6 23.0
23.7 23.1
31.0 31.2
31.1 31.3
31.2 31.3
32.5 31.8
32.7 32.0
33.1 32.4
44.8 45.1
45.2 45.7
45.5 46.0
44.9 46.1
45.0 45.8
44.9 46.1
60.2 60.2
60.2 60.8
60.4 61.1
56.3 55.4
56.2 55.5
56.2 55.6
73.7 75.7
74.1 76.1
74.5 76.5
63.4 63.0
63.2 63.0
63.2 63.3
81.8 83.0
82.1 83.3
82.6 83.8
Water Temp.
Differential
Low Low
Normal
Low
Low
Low High
Low High
Low Low
Low Normal
Low
Low
Normal/High
Low Low
Low Normal
Low High
Low Low
Low Low
Low Low
Low Low
Low Low
7/6/10
90°F 110°F
21.8
21.7 20.2
21.7 20.2
30.0
29.9 28.1
29.9 28.1
30.0
30.1 28.2
30.4 28.5
42.8
43.6 41.0
43.8 41.1
44.0
43.4 40.5
44.3 41.5
56.4
57.4 52.9
57.6 53.2
52.1
52.4 49.4
52.6 49.7
70.3
70.5 66.2
70.9 66.3
58.9
59.2 55.1
59.5 55.4
77.8
78.0 71.9
78.4 72.2
1/14/11