Panasonic UQ09 E8 Series, Installation Manual

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4
ENGLISH
CONNECTING THE PIPING
3
EVACUATION OF THE
EQUIPMENT
4
CAUTION
Do not over tighten, over tightening cause gas leakage.
Piping size (Torque)
Gas Liquid
ø15.88mm (5/8")
[65 N•m]
ø9.52mm (3/8")
[42 N•m]
CONNECTING THE PIPING TO OUTDOOR UNIT
Decide piping length and then cut by using pipe cutter. Remove burrs
from cut edge. Make fl are after inserting the fl are nut (locate at valve)
onto the copper pipe. Align center of piping to valves and then tighten
with torque wrench to the specifi ed torque as stated in the table.
•
Remove the side panel by remove the 2 mounting screws before
connect the piping.
•
Make sure to install the side panel after connect the piping.
WHEN INSTALLING AN AIR-TO-WATER HEAT PUMP, BE SURE TO
EVACUATE THE AIR INSIDE THE UNIT AND PIPES in the following
procedure.
Vacuum
pump
adaptor
Vacuum
pump
OPEN
CLOSE
Close
Gas side
Liquid side
Outdoor unit
Three-way valve
Two-way valve
Close
Indoor unit
1. Connect a charging hose with a push pin to the Low side of a
charging set and the service port of the 3-way valve.
•
Be sure to connect the end of the charging hose with the push
pin to the service port.
2. Connect the center hose of the charging set to a vacuum pump
with check valve, or vacuum pump and vacuum pump adaptor.
3. Turn on the power switch of the vacuum pump and make sure that
the needle in the gauge moves from 0 cmHg (0 MPa) to –76 cmHg
(–0.1 MPa). Then evacuate the air approximately ten minutes.
1. To cut 2. To remove burrs 3. To fl are

Improper fl aring

Inclined Surface
damaged
Cracked Uneven
thickness
When properly fl ared, the internal
surface of the fl are will evenly shine
and be of even thickness. Since the
fl are part comes into contact with the
connections, carefully check the fl are
fi nish.
Bar
Red arrow mark
Handle
Core
Yoke
Clamp
handle
Bar
0 – 0.5 mm
Copper
pipe
Reamer
Point
down
Pipe
CUTTING AND FLARING
THE PIPING
1. Please cut using pipe cutter and then remove the burrs.
2. Remove the burrs by using reamer. If burrs is not removed, gas
leakage may be caused. Turn the piping end down to avoid the
metal powder entering the pipe.
3. Please make fl are after inserting the fl are nut onto the copper
pipes.
•
After selecting the best location, start installation according to
Installation Diagram.
•
Fix Outdoor unit on the concrete fl oor with M12 anchor bolt at
4 locations.
•
Pull-out strength of these anchor bolts must be above 15000N.
Grip anchor bolt
Broken stone
Anchor bolt 60mm or more
300mm or
more
Floor
Concrete
Embedded anchor bolt
Anchor bolt
Floor slab (concrete)
Above
20mm
80mm
•
Compress strength of concrete is above 18MPa {180kgf/cm 2 }
Illustration of grip type and embedded type anchor bolt
DISPOSAL OF OUTDOOR UNIT DRAIN WATER
•
When a Drain elbow
1
is used, please ensure to follow below:
-
the unit should be placed on a stand which is taller than 50 mm.
-
cover the ø20mm holes with Rubber cap
2
(refer to illustration
below).
-
use a tray (fi eld supply) when necessary to dispose the outdoor
unit drain water.
•
If the unit is used in an area where temperature falls below 0°C for
2 or 3 consecutive days, it is recommended not to use the Drain
elbow
1
and Rubber cap
2
, for the drain water freezes and the
fan will not rotate.
Rubber ca
p
2
x 8
Drain elbow 1
Screws
Side panel