Panasonic Inverter Air Conditioner R410A Technical Data And Service Manual

1-85
1. Specifications
6-12. Installing the Rear Panel on the Wall
Be sure to confirm that the wall is strong enough to suspend 
the unit.
See either Item a) or b) below depending on the wall type.
a)  If Wooden Wall
(1)  Attach the rear panel to the wall with the 10 screws pro-
vided. (Fig. 1-36)
If you are not able to line up the holes in the rear panel 
with the beam locations marked on the wall, use toggle 
bolts to go through the holes on the panel or drill 3/16
dia. holes in the panel over the stud...

1-86
1. Specifications
6-13. Removing the Grille to Install the Indoor Unit
Basically, these models can be installed and wired 
without removing the grille. If access to any internal 
part is needed, follow the steps given below:
How to remove the grille
(1)  Set the 2 flaps in the horizontal position.
(2)  Unscrew the 3 screws. (Fig. 1-39a)
(3)  Remove the grille.
(a)  Hold both corners of the air-intake grille, then 
pull out and up to open. (Fig. 1-39b)
(b)  Use a flathead screwdriver to push up the 3...

1-87
1. Specifications
6-15. Wiring Instructions
General Precautions on Wiring
(1)  Before wiring, confirm the rated voltage of the unit as shown on its nameplate, then carry out the wiring closely 
following the wiring diagram.
(2)  Provide a power outlet to be used exclusively for each unit. A power supply disconnect and circuit breaker for 
overcurrent protection should be provided in the exclusive line.
(3)  To prevent possible hazards from insulation failure, the unit must be grounded.
(4)  All...

1-88
1. Specifications
6-17. Shaping the Tubing
(1)  Shape the refrigerant tubing so that it can easily go 
into the hole. (Fig. 1-45)
(2)  Push the wiring, refrigerant tubing and drain hose 
through the hole in the wall. Adjust the indoor unit 
so it is securely seated on the wall fixture.
(3)  Carefully bend the tubing (if necessary) to run along 
the wall in the direction of the outdoor unit and then 
insulate to the end of the fittings. The drain hose 
should come straight down the wall to a point...

1-89
1. Specifications
Ceiling Type  (T1 Type)
6-19. Suspending the Indoor Unit
(1)  Place the full-scale diagram (supplied) on the 
ceiling at the spot where you want to install the 
indoor unit. Use a pencil to mark the drill holes.
(Fig. 1-50).
NOTE
Since the diagram is made of paper, it may shrink or 
stretch slightly because of high temperature or 
humidity. For this reason, before drilling the holes 
maintain the correct dimensions between the markings.
(2)  Drill holes at the 4 points indicated on...

1-90
1. Specifications
(5)  Before suspending the indoor unit, remove the 2 
screws on the latch of the air-intake grilles, open 
the grilles, and remove them by pushing the claws 
of the hinges as shown in Fig. 1-54. Then remove 
both side panels sliding them along the unit toward 
the front after removing the two screws which fix 
them. (Fig. 1-55)
(6)  Preparation for suspending the indoor unit. The 
suspension method varies depending on whether 
the unit is next to the ceiling or not. 
(Figs. 1-56...

1-91
1. Specifications
Ceiling
surface
.
x o r p
p A
h
c n
i 1
Suspension bolt
Washer
(supplied)Nut
(field supply)
Fig. 1-58
Fig. 1-59
Fig. 1-60
(7)  Suspend the indoor unit as follows.
(a)  Mount a washer and two hexagonal nuts on 
each suspension bolt as shown in Fig. 1-58.
(b)  Lift the indoor unit with a lifting machine to the 
ceiling surface, and place it on the washers 
through the notches, to fix it in place.
(Fig. 1-59)
(c)  Tighten the two hexagonal nuts on each 
suspension bolt to suspend the...

1-92
1. Specifications
6-20. Duct for Fresh Air
There is a duct connection port (knock-out hole) at the 
right-rear on the panel top of the indoor unit for drawing 
in fresh air. If it is necessary to draw in fresh air, remove 
the cover by knocking it out and connect the duct to the 
indoor unit through the connection port. (Fig. 1-63)
If connection at the right-rear on the panel top is not 
appropriate, another duct connection port can be made 
by cutting an opening on the left side of the rear panel...

1-93
1. Specifications
Low Silhouette Ducted Type (F1 Type)
6-22. Required Minimum Space for Installation and 
Service
  This air conditioner is usually installed above the 
ceiling so that the indoor unit and ducts are not 
visible. Only the air intake and air outlet ports are 
visible from below.
  The minimum space for installation and service is 
shown in Fig. 1-67 and Table 1-7.
  It is recommended that space be provided (17-23/32
×17-23/32) for checking and servicing the 
electrical system.
  Fig....

1-94
1. Specifications
6-23. Suspending the Indoor Unit
Depending on the ceiling type:
 Insert suspension bolts as shown in Fig. 1-69
 or
 Use existing ceiling supports or construct a suitable 
  support as shown in Fig. 1-70.
(1)  When placing the unit inside the ceiling, 
determine the pitch of the suspension bolts 
referring to the dimensional data on the previous 
page. (Fig. 1-68)
Tubing must be laid and connected inside the 
ceiling when suspending the unit. If the ceiling is 
already...