Toshiba RAV-GM1101ATP-E Installationsanleitung Seite 14

Tightening of connecting part
1
Align the centers of the connecting pipes
and fully tighten the flare nut with your
fingers. Then fix the nut with a wrench as
shown in the figure and tighten it with a
torque wrench.
Half union or packed valve Flare nut
Externally Internally
threaded side
threaded side
Fix with wrench. Tighten with torque
wrench.
2
As shown in the figure, be sure to use two
wrenches to loosen or tighten the flare nut of
the valve on the gas side. If you use a single
crescent, the flare nut cannot be tightened to
the required tightening torque.
On the other hand, use a single crescent to loosen
or tighten the flare nut of the valve on the liquid
side.
Outer dia. of copper pipe Tightening torque
9.5 mm (dia.) 34 to 42 (3.4 to 4.2
15.9 mm (dia.) 68 to 82 (6.8 to 8.2
Cover
Cap
Piping valve
Loosened
Tightened
Flare nut
Valve at gas side
25-EN
CAUTION
Do not put the crescent wrench on the cap or cover.
The valve may break.
If applying excessive torque, the nut may break
according to some installation conditions.
In correct
Cap
leaks of the pipe connections with nitrogen.
pipe connecting sections that connect the indoor/
(Unit: N m)
outdoor units at the specified tightening torque.
Incomplete connections may cause not only a gas
leak, but also trouble with the refrigeration cycle.
Do not apply refrigerating machine oil to the
flared surface.
– 13 –
Refrigerant pipe length
Single
l A o l w a b e l p p i e e l n
T t o l a e l n g h t
5 0
Cover
G a s s d i e
Ø 1 5 9 .
Simultaneous twin
System Model
GM110
TWIN
GM140
System Model
GM110
TWIN
GM140
Figure of Single
Outdoor unit
g h t ( m ) H e g i t h difference (Indoor-outdoor H) (m)
L n I d o r o u n : t i U p p r e
3 0
Pipe diameter (mm)
L q i u d i s d i e
Ø 9 5 .
Allowable pipe length (m)
Distributed Distributed
Total length
pipes pipes
1 + 2
2 3 – 2
1 + 3
Indoor unit:
3 4 – 2
1 + 4
4 4 – 3
Maximum
Maximum Maximum
50 15 10
50 15 10
Pipe diameter (mm)
Main pipe Branching pipe
Gas side Liquid side Gas side Liquid side
Ø15.9 Ø9.5 Ø12.7
Ø15.9 Ø9.5 Ø15.9
Figure of Simultaneous twin
Indoor unit
Outdoor unit
Outdoor unit: Lower
3 0
Number of bent portions
1 0 r o e l s s
Height difference (m)
Indoor-outdoor H
Indoor-
Outdoor
indoor ( h)
Upper unit: Upper
30 30 0.5
30 30 0.5
Number of
bent
portions
Ø6.4 10 or less
Ø9.5 10 or less
Indoor unit
Distributor
2 3
1
26-EN