Installing The Grille - Mitsubishi Electric City Multi PMFY-P20VBM-E Installation Manual

4. Electrical work
G
*1
H
I
*3
L1
Fig. 4-3
A
SW5
220V
SW1
ON
OFF
1 2 3 4 5 6 7 8 9 10
SW12
0
Fig. 4-4

5. Installing the grille

1
Fig. 5-1
A
Fig. 5-2
D
E
Fig. 5-3
J J J
L2 *2
K K
L4
J J
r
K
L
L3
K K
240V
CN43
CN82
SW11 SW14
SWC
0 0
2 3
B
C
G
F
Constraints on transmission cable (Fig. 4-3)
Longest wiring length (L +L +L or L
1 2 4
Length between indoor unit and remote controller (R): within 10 m
G Outdoor unit
H Earth
I BC controller
J Indoor unit
K M-NET Remote controller
L Non-polarized 2-wire
Note:
*1 Put the transmission cable earth via the outdoor unit's earth terminal
the ground.
*2 If the remote controller cable exceeds 10 m, use a 1.25 mm
over the exceeded portion, and add that exceeded portion to within 200 m.
*3 The BC controller is required only for simultaneous cooling and heating
series R2.
4.3. Setting addresses (Fig. 4-4)
(Be sure to operate with the main power turned OFF.)
• There are two types of rotary switch setting available: setting addresses 1 to 9 and
over 10, and setting branch numbers.
Note:
Please set the switch SW5 according to the power supply voltage.
• Set SW5 to 240 V side when the power supply is 230 and 240 volts.
• When the power supply is 220 volts, set SW5 to 220 V side.
A Address board
4.4. Types of control cables
1. Wiring transmission cables: Shielding wire CVVS or CPEVS
• Cable diameter: More than 1.25 mm
2. M-NET Remote control cables
Kind of remote control cable Shielding wire MVVS
Cable diameter More than 0.5 to 1.25 mm
When 10 m is exceeded, use cable with the same
Remarks
specifications as transmission line wiring
3. MA Remote control cables
Kind of remote control cable 2-core cable (unshielded)
Cable diameter 0.3 to 1.25 mm
5.1. Checking the contents (Fig. 5-1)
• This kit contains the following parts.
Accessory name
1 Grille
2
Screw
3 Screw
A Points for securing the grille
B Points for securing the grille
C Indoor unit
D Ceiling surface
5.2. Checks before setting in place (Fig. 5-2, 3)
• Before installing the front panel, make sure the indoor unit is square with the ceiling
opening (or parallel to the angle between the wall and the ceiling).
• Check that the four points where the front panel will be secured are in contact with
the ceiling surface.
• Check that the insulation for the refrigerant pipes, drainage pipes, etc. is in place
and that wiring connections and arrangements are complete.
+L or L +L +L ): less than 200 m
1 3 2 3 4
2 diameter cable
2
2
2
Q'ty Remark
1
M5 × 0.8 × 16
6
4 × 16
1
E Drainage pan
F Places for securing front grille
G Make sure these surfaces are flush with each
other (0-3 mm).
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