Drainage Piping Work; Electrical Work - Mitsubishi Electric Mr.SLIM PU-P HA Série Manuel D'installation

4. Installing the refrigerant piping
4.6. Addition of refrigerant
• Additional charging is not necessary for this unit if the pipe length does not exceed
30 m.
• If the pipe length exceeds 30 m, charge the unit with additional R410A refrigerant
according to the permitted pipe lengths in the chart below.
* 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
≤
P71-140 : A+B+C(+D) 50 m
Fig. 4-7

5. Drainage piping work

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

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.
D
L
N
For Heater
S1
S2
S3
B
L N S1 S2 S3
D
For Power
For Heater For Heater
D D
For Power
B A
E E
C
C
A
B D
C
A
B
B–C
≤
B–D 8 m
C–D
P71-140
PAC-SG61DS-E
PAC-SG64DP-E
*With Heater
model only
A
C
A Indoor unit
B Outdoor unit
C Remote controller
D Main switch (Breaker)
E Earth
For Heater
D D
A A
E E
Fig. 6-1
• 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 perform-
ance.
Permitted
Permitted
Model
pipe vertical
length difference
P71-140 -50 m
-30 m
4.7. For twin/triple combination
Refrigerant piping limitation of length, height difference are shown in the figure. (Fig.
4-7)
A Indoor unit
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
I P71-100V
L N S1 S2 S3
I P71-140
A
B
D C
E
A Earth terminal
B Terminal block
C Clamp
D Service panel
E Wire the cables so that they do not contact the center of the service panel or the gas valve.
Fig. 6-2
Additional refrigerant charging amount
31 - 40 m 41 - 50 m
0.6 kg 1.2 kg
I P71-140Y
L1 L2 L3 N S1 S2 S3
7