11
English
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Before installation, check strength and horizontality of the
base so that abnormal sound does not generate. According
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anchor bolts (Anchor bolt, nut: M10 x 2 pairs). If the outdoor
unit is installed in a very windy place, protect the fan with a
wind protection screen and check that it works correctly.
3.1 - Required tools for installation
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3.2 - Filed supplied material
Refrigerant pipes; Pipe insulating material (polyethylene
foam, 6 mm thick), Putty, PVC tapes.
3.3 - Knockout procedure (Fig. 4, 5)
The indoor/outdoor connecting pipes can be connected to
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pipe cover in which pipes or wires pass through the base
plate. Do not remove the pipe cover from the cabinet so
that the knockout hole can be easily punched.
To knock out, punch the 3 connected parts with a
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After marking the knockout hole, remove the burr and
mount the attached protective bush and guard material for
pass-through part in order to protect pipes and wires.
3.4 - How to remove the front panel (Fig. 6)
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2. Pull the front panel downward.
3.5 - Drain hose and base pan knockouts (Fig. 7)
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In case of draining through the drain hose, attach the drain
nipple (
A
) and use the drain hose (Inner diam.: 16mm)
sold on the market. When there is a possibility of freezing
of drain at the cold district or a snowfall area, be careful
for drainage ability of drain.
The drainage ability increases when knockout holes on the
base pan are opened. (Open the knockout hole to outside
using a hammer (
B
), etc.).
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Please refer to the hydronic module manual.
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See R-410A - Installation manual for detailed instruction
on the process.
CAUTION: IMPORTANT FOR POINTS BELOW FOR
PIPING WORK
1. Keep dust and moisture away from inside the
connecting pipes.
2. Tightly connect the connection between pipes and the
unit.
3.
Evacuate the air in the connecting pipes using
VACUUM PUMP.
4. Check gas leak at connected points.
5.1 - Connections and pipe lengths (Fig. 8)
Piping connections:
Model
Outer diameter (mm)
Thickness (mm)
Liquid
Gas
Liquid
Gas
YUNA II 5 HK
6.4 (1/4")
12.7 (1/2")
0.8
0.8
YUNA II 6 HK -
YUNA II 9 HK/
YUNA II 11 HK
9.52 (3/8")
15.9 (5/8")
0.8
1
YUNA II 12 HTK/
YUNA II 15 HTK
9.52 (3/8")
15.9 (5/8")
0.8
1
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A
B
C
YUNA II 5 HK
m
15
30
50
YUNA II 6 HK
m
15
30
30
YUNA II 9 HK/
YUNA II 11 HK
m
15
30
70
YUNA II 12 HTK/
YUNA II 15 HTK
m
15
30
70
5.2 - Valves connections (Fig. 9)
Use two spanner to tighten the valves as shown in the
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