Sanyo SAP-K18AM Instruction Manual page 32

10. INSTALL OUTDOOR UNIT
10.2.4 Connecting Tubing between Indoor and
Outdoor Units
• Tightly connect the indoor side refrigerant
tubing extended from the wall with the outdoor
side tubing. (Fig. 30)
• To fasten the flare nuts, apply specified torque
as:
Table 2
Tube Dia.
6.35 mm Approx. 15 - 20 N.m (1.5 - 2.0 kg.m)
9.52 mm Approx. 35 - 40 N.m (3.5 - 4.0 kg.m)
12.7 mm Approx. 50 - 55 N.m (5.0 - 5.5 kg.m)
10.2.5 Insulation of Refrigerant Tubing
IMPORTANT
To prevent heat loss and wet floors due to dripping
of condensation, both tubes must be well
insulated with a proper insulation material. The
thickness of the insulation should be a min. 8 mm.
(Fig. 31, 32)
CAUTION
After a tube has been insulated, never try to bend
it into a narrow curve, as this may cause to break
or crack.
10.2.6 Taping the Tubes
• At this time, the 2 refrigerant tubes (and
electrical wire if codes permit) should be taped
together with armoring tape. The drain hose
may also be taped together as 1 bundle with
the tubing.
• Wrap the armoring tape from the bottom of the
outdoor to the top of tubing where it enters the
wall. As you wrap the tubing, overlap half of
each previous tape turn. (Fig. 33)
• Clamp tubing bundle to wall, using 1 clamp
approx. every 120cm.
Do not wind the armoring tape too
NOTE
tightly, since this will decrease the
heat insulation effect. Also, be sure
the condensation drain hose splits
away from the bundle and drips
clear of the unit and the tubing.
10.2.7 Finish the Installation
After finishing insulating and taping over the
tubing, use sealing putty to seal off the hole in
the wall to prevent rain and draft from entering.
(Fig. 34) shows refrigerant tubing taped
separately from the drain hose.
Installation Service
Tightening Torque
Torque wrench
Indoor unit
Fig.30
Fig.31
Insulation
Min.
8 mm
Fig.32
Fig.33
Apply putty here
Fig.34
Spanner
Outdoor unit
Insulation
Thickness:
min. 8 mm
Clamp
Insulated tubes
Tubing
30