Removing And Attaching The Front Panel (Floor Standing Type); Installing The Refrigerant Tubing; Installing The Drain Piping - Panasonic S-28MD1E5 Instructions D'installation

SUPPLEMENT
Concealed Floor Standing Type (R1 Type)
1
4-ø12 holes (for fastening the indoor unit to the floor with screws)
2
Air filter
3
Refrigerant connection outlet (liquid tube)
4
Refrigerant connection outlet (gas tube)
5
Level adjusting bolt
6
Drain outlet (20A)
7
Flange for air-outlet duct
Table 3-4
Length
A B C D E F
Type
22, 28, 36 904 692 672 665 500 86
45, 56
1219 1007 1002 980 900 51
73
D
A
166
B
C (Internal dimension)
F
E (Hole Pitch : 100)
Air outlet
30
Power supply outlet
Air inlet
Inter-unit control wiring
N OTE
Make an opening in the housing of the unit so that maintenance
service can be peformed on the electrical component box, air
filter, refrigerant tubing connection, and drain pipe.
Unit: mm
Liquid Gas
tube tube
ø6.35 ø12.7
ø9.52 ø15.88
229
125
155
66
46
F
147
205
30
Fig. 3-109
27
3-30. Removing and Attaching the Front Panel
(Floor Standing Type)
NOTE
A dew-prevention heater is secured behind the front panel.
When removing or attaching the panel, take care not to damage
the lead wire to the heater.
How to remove the front panel
(1) Remove the 2 screws at the lower part of the front panel.
(2) Holding A at the upper right of the unit, push up B at the
lower right of the panel. The right side of the front panel
is removed. Then remove the left side of the front panel
following the same procedure.
Front panel
Screw
Screw B
(3) Disengage the lead wire connector (2P red) for the
dew-prevention heater.
(4) Remove the string connecting the front panel of the unit by
unhooking it from the fixture attached to the panel.
Fixture String
Dew-prevention
heater
Front panel
Unit: mm
How to attach the front panel
(1) Hook the string to the fixture of the front panel.
(2) Connect the lead wire connector.
(3) Align the slots at the lower part of the front panel to the
tabs at the lower part of the indoor unit and put the upper
trim tab of the front panel on the groove of the unit. Then
press down the panel.
(4) Insert the 2 screws at the lower part of the front panel.

3-31. Installing the Refrigerant Tubing

(1) When connecting the gas tube use the supplied tubing.
(2) Tubes can be extended in 2 directions: downward and at
rear.
For Floor Standing type
● When a rear tube is required, it can run through the rear-tube
outlet of the rear panel.
● When a downward tube is required, refer to the opening
dimensions shown in Fig. 3-112.
Holes for fixing the
unit to the floor
A
CAUTION
Insulate both gas and liquid tubes.
● To insulate tubes
(1) Wrap the flare nuts with the supplied white insulating tape.
(2) Wrap the flare nuts with the supplied flare insulator.
Latch
(3) Fill the clearance between the union insulator and flare
Side panel
insulator with black insulating tape. Fasten both ends of
the flare insulator with the supplied vinyl clamps.
Insulating tape (black)
Fig. 3-110
Insulating tape (white)
Lead-wire connector
(2p Red)
Flare nut
Insulator
Vinyl clamps

3-32. Installing the Drain Piping

CAUTION
Water leaks may occur if the drain pipes are connected
inadequately.
(1) When rear-side drain piping is required bend the drain
hose attached to the indoor unit by 90°. Connect a drain
pipe (field supply) to the drain hose through the rear tubing
outlet in the rear panel. Use a hard PVC pipe (O.D. 25 mm)
for the drain piping.
Fig. 3-111
Drain hose
Drain pipe (PVC)
28
Rear-tube outlet
Refrigerant
tubing space for
downward tubing
Fig. 3-112
Flare insulator
Insulating tape
Fig. 3-113
Fig. 3-114