Indoor Unit Installation; Refrigerant Piping Work - Panasonic CS-20PM1HPK Installation Manual

5. INDOOR UNIT INSTALLATION

Be sure to use only accessory or specified parts when installing.
(1) Level the indoor unit with the leveling screws (7). If the floor is too uneven to level the unit, place
the unit on a flat base and level.
(2) If the unit is in danger of falling over, either fasten to the wall using the holes provided, or fasten
to the floor with an optional floor fastener.
CS-∗∗PM1HPK
(3) The legs can be retracted if the indoor unit is to be hung
on a wall. To do so, lift the legs as shown in the figure on
the right.
NOTES
1. Use the installation mount for installation. Check whether the
wall is strong enough to bear the weight of the unit or not. if
there is a risk, reinforce the wall before installing the unit.
2. The unit requires a minimum 100 mm clearance on the under-
side for air intake. Also, ensure the unit is level when installed
so that drainage flows smoothly. if inclined, water can leak.
(4) Use the following procedure to mount the remote control-
ler switch (optional accessory) on the unit is so desired.
("CS-∗∗ ∗∗ ∗∗ ∗∗PM1HPK" type only)
• Open the left side lid of control panel and mount the lower
case on the remote controller switch.

6. REFRIGERANT PIPING WORK

〈 〈 〈 〈 For refrigerant piping of outdoor units, see the installation manual attached to the outdoor unit.〉 〉 〉 〉
〈 〈 〈 〈 Be sure to thermally insulate both the gas pipes and fluid pipes. Water leakage may result if the pipes
are not insulated. (Only use insulation resistant to at least 120 °C.)
Furthermore, if the temperature/humidity in the refrigerant piping are expected to exceed 30 °C or
80% RH, the thermal insulation of the refrigerant pipes should be strengthened (to be a thickness of
20 mm or more). There may be some condensation on the surface of the insulation material.〉 〉 〉 〉
〈 〈 〈 〈 Before rigging tubes, check which type of refrigerant is used. Proper operation is not possible if the
types of refrigerant are not the same.〉 〉 〉 〉
6-1 CAUTION
• Use a pipe cutter and flare suitable for the type of refrigerant.
• Apply ester oil or ether oil around the flare portions before connecting.
English
Leveling screws (7)
(Accessory)
Lift legs.
Lift legs.
CS-∗∗RM1HPK
Installation screw
Lower case of remote
control switch
Lid of control panel
NOTE
See the accessory
instruction procedure for
instructions on screw
fastening and wiring for the
remote controller switch.
6