Maritime Geothermal ATF-45, Инструкция по установке и обслуживанию

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Page 30 002000MAN-01 1-Jun-2018
TABLE 15 - Extra Charge Required
Model Size Extra charge required for linesets >20 ft (6 m)
25
1.1 oz per ft 0.10 kg per m
45
55
2.1 oz per ft 0.18 kg per m
65
75
Charging the System
The indoor unit is pre-charged for linesets up to 20 ft long. Once the system has been vacuumed, if extra refrigerant is required
due to the length of the lineset, it may be added before opening the access valves. Close off the charge valve on the refrigeration
manifold set and disconnect the vacuum pump. Connect the charge (yellow) hose to the liquid port of a refrigerant tank and place the
tank on a scale. Open the liquid valve of the refrigerant tank and then slightly loosen the charge (yellow) hose at the manifold until
liquid comes out, then quickly re-tighten the hose. This will ensure that no air enters the system. Zero the scale and then add the
calculated amount of refrigerant from the tables below.
Once the additional charge (if any) has been added, disconnect both hoses from the service ports of the access valves and
place the caps back on them, tighten with a wrench.
Remove the caps from the access valves and open both valves with a hex key. Open the valves (counter-clockwise) until they
stop turning. Replace the caps and tighten with a wrench.
The system is now ready for startup. Clean up the area, install all access panels except the one which
gives access to the electrical box. Proceed to the Startup Section of the manual before turning the power on to
the unit.
TABLE 17 - Extra Charge (Sizes 55-75)
Total
Lineset
(ft)
Extra
Charge
(oz)
Extra
Charge
(lb)
Extra
Charge
(kg)
22 4 0.3 0.12
24 8 0.5 0.24
26 13 0.8 0.36
28 17 1.1 0.48
30 21 1.3 0.60
32 25 1.6 0.71
34 29 1.8 0.83
36 34 2.1 0.95
38 38 2.4 1.07
40 42 2.6 1.19
42 46 2.9 1.31
44 50 3.2 1.43
46 55 3.4 1.55
48 59 3.7 1.67
50 63 3.9 1.79
52 67 4.2 1.91
54 71 4.5 2.02
56 76 4.7 2.14
58 80 5.0 2.26
60 84 5.3 2.38
62 88 5.5 2.50
64 92 5.8 2.62
66 97 6.0 2.74
70 105 6.6 2.98
74 113 7.1 3.21
68 101 6.3 2.86
72 109 6.8 3.10
TABLE 16 - Extra Charge (Sizes 25-45)
Total
Lineset
(ft)
Extra
Charge
(oz)
Extra
Charge
(lb)
Extra
Charge
(kg)
22 2 0.1 0.06
24 4 0.3 0.12
26 7 0.4 0.19
28 9 0.6 0.25
30 11 0.7 0.31
32 13 0.8 0.37
34 15 1.0 0.44
36 18 1.1 0.50
38 20 1.2 0.56
40 22 1.4 0.62
42 24 1.5 0.69
44 26 1.7 0.75
46 29 1.8 0.81
48 31 1.9 0.87
50 33 2.1 0.94
52 35 2.2 1.00
54 37 2.3 1.06
56 40 2.5 1.12
58 42 2.6 1.19
60 44 2.8 1.25
62 46 2.9 1.31
64 48 3.0 1.37
66 51 3.2 1.43
68 53 3.3 1.50
74 59 3.7 1.68
70 55 3.4 1.56
72 57 3.6 1.62