Mitsubishi Electric SUZ-KA24NAHZ Manual De Instalación página 9

4. Installing the refrigerant piping
4.6. Addition of refrigerant
• 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 vacu-
umized.
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.
Model Max pipe length
KA24 30 m, 100 ft
KA30, 36 30 m, 100 ft
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 *
KA24
Drain pan *
KA30/36
* Do not use the drain pipe in cold climates as it may freeze.
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.
B
L1 L2 GR S1 S2 S3
E
D
For Power
For Power D
B
A
E
C
E
Additional refrigerant charging amount
Max height
21 m
difference
70 ft
30 m, 100 ft 0
30 m, 100 ft 0
PAC-SG61DS-E
PAC-SG64DP-E
PAC-SH97DP-E
S1
S2 A
S3
E
C
Indoor unit
A
Outdoor unit
B
Remote controller
C
Main switch (Breaker)
D
Earth
E
A
E
Fig. 6-1
* 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 information.
• 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 per-
formance.
24 m 27 m
80 ft 90 ft
0.2 kg 7 oz 0.4 kg 14 oz 0.6 kg 21 oz
0 0
A
D C
E
Earth terminal
A
Terminal block
B
Clamp
C
Service panel
D
Wire the cables so that they do
E
not contact the center of the
service panel or the gas valve.
CONDUIT PLATE : accessory
30 m
100 ft
0
B
L1 L2 GR
S1 S2 S3
Fig. 6-2
en
8