Addition Of Refrigerant; Drainage Piping Work; Electrical Work - Mitsubishi Electric MR.SLIM PUHZ-P200+250YHA3 Series Installationshandbuch

4. Installing the refrigerant piping

4.6. Addition of refrigerant

• Additional charging is not necessary if the pipe length does not exceed 30 m.
• If the pipe length is exceeded, charge the unit with additional R410A refrigerant
according to the permitted pipe lengths in the following table.
* When the unit is stopped, charge the unit with the additional refrigerant
through the liquid stop valve after the pipe extensions and indoor unit have
been vacuumized.
When the unit is operating, add refrigerant to the gas check valve using a
safety charger. Do not add liquid refrigerant directly to the check valve.
* After charging the unit with refrigerant, note the added refrigerant amount on
the service label (attached to the unit).
Refer to the "1.5. Using R410A refrigerant air conditioners" for more informa-
tion.
A
E
A
D
B
A+B+(+D)(+E) [ 70 m
* "D" is for triple.
* "E" is for four (quadruple).
Fig. 4-9

5. Drainage piping work

Outdoor unit drainage pipe connection
When drain piping is necessary, use the drain socket or the drain pan (option).

6. Electrical work

6.1. Outdoor unit (Fig. 6-1, Fig. 6-2)
(1) Remove the service panel.
(2) Wire the cables referring to the Fig. 6-1 and the Fig. 6-2.
A
B
D
C
D
A Power supply terminal block (L1, L2, L3, N,
B Indoor/outdoor connection terminal block (S1, S2, S3)
C Service panel
D Clamp
* Clamp the cables so that they do not contact the center of the service panel or the gas valve.
Caution:
Be sure to install N-Line. Without N-Line, it could cause damage to unit.
C
A
A Indoor unit
A
B Outdoor unit
C Multi distribution pipe (option)
D Height difference (Indoor unit-
Outdoor unit) Max. 30 m
E Height difference (Indoor unit-
Indoor unit) Max. 1 m
A: Main piping
B, C, D, E: Branch piping
B–C
[ 8 m
B–D
C–D
Note: If the protective sheet for
the electrical box is re-
moved during servicing,
be sure to reinstall it.
)
• Be careful when installing multiple units. Connecting to an incorrect indoor unit
can lead to abnormally high pressure and have a serious effect on operation
performance.
Permitted Permitted
Model pipe
length difference
P200
70 m
P250
4.7. For twin/triple/quadruple combination (Fig. 4-9)
• When this unit is used as a FREE COMPO MULTI unit, install the refrigerant
piping with the restrictions indicated in the drawing on the left. In addition, if the
restrictions are going to be exceeded, or if there are going to be combinations of
indoor and outdoor units, refer to installation instructions for the indoor unit for
details about the installation.
Permissible total piping length
Outdoor unit
P200
P250
Outdoor unit
P200
P250
Drain socket
Drain pan
* Except PEA-RP200, 250, 400, 500GA
D
For Heater
B
D
For Power
For Heater
For Power D D
B A
E
E
Fig. 6-1
Additional refrigerant charging amount
vertical
31 - 40 m 41 - 50 m 51 - 60 m 61 - 70 m
0.9 kg 1.8 kg
30 m
1.2 kg 2.4 kg
Charge-less piping length
A+B+C+D+E A+B+C+D+E
70 m and less 30 m and less
| B-C | or | B-D | or
| B-E | or | C-D | or No. of bends
| C-E | or | D-E |
8 m and less
PAC-SG61DS-E
PAC-SG64DP-E
* With Heater
model only
A
A Indoor unit
C
B Outdoor unit
C Remote controller
D Main switch (Breaker)
E Earth
For Heater For Heater
D D
A A
E E
C
2.7 kg 3.6 kg
3.6 kg 4.8 kg
Within 15
For Heater
D
A
E
7