Gree GMV-100WL/A-T, Руководство по обслуживанию

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GREE DC Inverter Multi VRF System II Service Manual
143
3) Calculation example
IDU
No. IDU
ķ
IDU
ĸ
IDU
Ĺ
IDU
ĺ
Model
Duct type
GMV-ND72PL/B-T
Duct type
GMV-ND50PL/B-T
Duct type
GMV-ND36PL/B-T
Duct type
GMV-ND25PL/B-T
Liquid pipe:
No. A B C D
Pipe size Φ 9.52 Φ 9.52 Φ 9.52 Φ 6.35
Length 10m 5m 5m 5m
No. a b c d
Pipe size Φ 9.52 Φ 6.35 Φ 6.35 Φ 6.35
Length 3m 3m 2m 1m
Total length of each liquid pipe
Φ 9.52
˖
A+B+C+a=10+105+5+3=23m
Φ 6.35: D+b+c+d=5+3+2+1=11m
Quantity of indoor unit: 4 sets
Therefore, the minimum quantity of additional refrigerant = (23×0.054+11×0.022)+(4-2) ×0.3
˙
2.084kg
˄ 3 ˅ Calculate the additional volume of refrigerant (GMV-H224WL/A-X ǃ GMV-H280WL/A-X ǃ
GMV-H335WL/A-X
ǃ
GMV-224WL/C-X
ǃ
GMV-280WL/C-X
ǃ
GMV-335WL/C-X)
1) Refrigerant quantity of outdoor unit before delivery:
Model
GMV-H224WL/A-X
GMV-224WL/C-X
GMV-H280WL/A-X
GMV-280WL/C-X
GMV-H335WL/A-X
GMV-335WL/C-X
Refrigerant Qty (kg) 5.5 7.1 8.0