Hitachi RAM-10MQ, Инструкция по установке и обслуживанию

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10
●
Piping Size and Multi-Kit Selection
Example of System :
The figure is an example which shows the combination
of indoor and outdoor units.
The refrigerant pipes which contain gas/ liquid
pipes are shown in single lines for simplification.
Item
Allowable length
The number of indoor unit is
less than the recommended
maximum combined number
of units. The number of indoor unit
exceeds the recommended
maximum combined number
of units.
Maximum Piping
Length
Actual length
L
1
≦
165m
Equivalent length
※
L
1
≦
190m
Total length
L
t
≦
1000m L
t
≦
300m
Maximum Piping
Length
Length between First Multi-kit and the
furthest indoor unit
L
2
≦
90m L
2
≦
40m
Length between each Multi-kit and Each
indoor unit
L
3
≦
40m L
3
≦
30m
Length between Piping Connection Kit 1 and
the furthest outdoor unit
L
5
≦
10m
Maximum Height
Difference
between Outdoor
and Indoor Unit
If the outdoor unit is higher than indoor unit.
H
1
≦
50m
If the indoor unit is higher than outdoor unit.
H
1
≦
40m
Height difference between Each indoor unit H
2
≦
15m
Height difference between Each outdoor unit H
5
≦
0.1m
Multi-kit and Piping
First Multi-kit
Outdoor Unit
(HP)
Gas/Liquid
Piping
Diameter
(
¯
mm)
(L
1
＜
100m)
Gas/Liquid
Piping
Diameter
(
¯
mm)
(L
1
≧
100m)
Multi-Kit Type
8 19.05 / 9.53 22.2 / 12.7
E-NP282S
10 22.2 / 9.53 25.4 / 12.7
12~14 25.4 / 12.7 28.6 / 15.88
E-NP452S
16 28.6 / 12.7 31.75 / 15.88
18~24 28.6 / 15.88 31.75 / 19.05 E-NP692S
26~34 31.75 / 19.05 34.9 / 22.2
E-NP902S
36~54 38.1 / 19.05 41.3 / 22.2
Other Multi-kits
Indoor Unit Total
Capacity (kW)
Gas/Liquid Piping Diameter
(
¯
mm)
Multi-Kit Type
≧
101.0 38.1 / 19.05
E-NP902S
73.0~100.9 31.75 / 19.05
50.0~72.9 28.6 / 15.88 E-NP692S
45.0~49.9 28.6 / 12.7
E-NP452S
33.5~44.9 25.4 / 12.7
25.0~33.4 22.2 / 9.53
E-NP282S
16.0~24.9 19.05 / 9.53
≦
15.9
15.88 / 9.53
※
Equivalent length= Actual Additional length(Elbow, Bend and Multi-Kit)
‧
One 90
°
Elbow is 0.5m.
‧
One 180
°
Bend is 1.5m.
‧
One Multi-Kit is 0.5m.
室內機
分歧管 1 分歧管 2
第一分歧管
室內機 室內機
室內機 室內機 室內機
Master (A)
Slave (C)
Slave (B)
First
Multi-Kit
Piping
Connection Kit 1
Piping
Connection Kit 2
Indoor Indoor Indoor
Indoor
Indoor
Indoor