Panasonic S-36MK2E5A - Connecting Tube Shape; Air-Tightness Test; Installation; Service Space

2-57
Design of VRF SYSTEM
1
2
3
4
5
6
7
8
9
4. Optional Parts
3. Air-tightness Test
4. Installation
(1) Preparation
AssembIy Drawing
Fig. 2-158
Service Space
Fig. 2-159
Example of RAP Valve Kit Installation
Fig. 2-160
Screw (4 pcs.)
Liquid tube
Front
Upper
Suspension hook
Gas tube
Liquid tube
Strainer
assembly
Strainer
assembly
Service panel
How to use suspension hook
Washer
Top View
More than 200 mm
200 mm or more
(If installed at the
same height)
Suspension bolt (3/8")
(field supply)
Nut
(field supply)
Suspension
hook
Optional Distribution
Joint Kit (68 kW)
(Also used on the
outdoor unit tubing
side)
ø15.88 flare connection
ø12.7 flare connection
Connecting Tube Shape
(For ø12.7 gas tube connection)
Accessories
128
ø6.35 flare connection
ø9.52 flare connection
unit : mm unit : mm
Connecting Tube Shape
(For ø9.52 liquid tube connection)
Fig. 2-156Fig. 2-155
Accessories
65
Nitrogen is sealed inside the main unit. Before loosening the flare section, perform the
following air-tightness check. Use pliers or a similar tool to bend the end of the indoor
unit hermetically sealed tubing so that a crack is formed. Verify that a “pffft” sound occurs.
Pffft
Air-tightness Test
Fig. 2-157
When insulating this tube, use the thermal insulation provided
for the liquid tubes.
This insulation is used when connecting the ø9.52 liquid tube.
Thermal insulation for this tube is not supplied.
Use field-supply insulation.
This insulation is used when connecting the ø12.7 gas tube.
(It is used between the strainer assy and the connected tubing.)
Fit the supplied suspension hook to the valve body with 4 screws.
Next, fit the strainer assemblies to the gas tube inlet and outlet and tighten the flare nut.
In doing this,
the flare nut with the tightening torque shown in Table 2-7.
together and tighten be sure to use 2 spanners
Since the RAP Valve Kit contains nitrogen, be careful when
removing the flare nut.
The diameter of the indoor unit tubing may be different from the
diameter of the tubing for this unit.
If this is the case, refer to Figs. 2-155 and 2-156 (for the liquid tube
and gas tube, respectively) and follow the instructions there.
For 22.4 kW (8hp) and 28 kW (10hp) indoor units, connect 2 RAP
Valve Kits in parallel.
Service space
TDxxxxxx-002WAYVRF.indb57TDxxxxxx-002WAYVRF.indb57 2014/01/3017:52:322014/01/3017:52:32