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Indoor unit
Piping length under 5m
Tab.5
Capacity
Watts (BTU/h)
2638 (9K)
3517 (12K)
5275 (18K)
3.6.2 Caution in handling the
packed valve integrated in the
outlets of outdoor unit
1. Operation of opening packed valve:
Open the valve stem until it hits
against the stopper. Do not try to open
it further.
2. Operation of closing packed valve:
Securely tighten the valve stem with a
special tool. Then securely tighten the
valve stem cap with a spanner or the
like. Refer to the table on page 17 for
valve cap tightening torque.
Outdoor unit
(A)
(B)
Discharge Pipe
Standard
Diameter (mm)
Length (m)
Ø6.35 (1/4")
5
Ø6.35 (1/4")
5
Ø6.35 (1/4")
5
Indoor unit
Piping length 5m or more
Maximum
Maximum
Length (m)
Height (m)
(A)
(B)
15
10
20
10
25
10
Fig.52
Lo stop valve
Outdoor
(3-way valve)
Unit
Hi stop valve
(2-way valve)
Outdoor unit
(A)
Oil trap
(B)
Additional Refrigerant
(g/m)
Cooling Only Heat Pump
15
16
15
16
15
16
Refrigerant
Indoor
Gas side
Liquid side
Half union
Unit
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