Routing The Tubing And Wiring; Electrical Wiring; General Precautions On Wiring; Recommended Wire Length And Wire Diameter For Power Supply System - Sanyo Classic PACi Serie Instrucciones De Instalación

● When using a drain pipe, install the drain socket (Optional
parts 3 HP: STK-DS13U, 4 HP and 5 HP: STK-DS25T) onto
the drain port. Seal the other drain port with the rubber cap
supplied with the drain socket.
● For details, refer to the instruction manual of the drain socket
(Optional parts 3 HP: STK-DS13U, 4 HP and 5 HP: STK-
DS25T).

4-3. Routing the Tubing and Wiring

For 3 HP (Single-phase) unit
● Refer to Fig. 4-1-1 for 3 HP unit.
For the other units
● The tubing and wiring can be extended out in 4 directions:
front, rear, right, and down.
● The service valves are housed inside the unit. To access
them, remove the inspection panel. (To remove the
inspection panel, remove the 3 screws, then slide the panel
downward and pull it toward you.)
(1) If the routing direction is through the front, rear, or right,
use a nipper or similar tool to cut out the knockout holes for
the inter-unit control wiring outlet, power wiring outlet, and
tubing outlet from the appropriate covers A and B.
(2) If the routing direction is down, use a nipper or similar tool
to cut out the lower flange from cover A. (Fig. 4-2)
Inter-unit control wiring
outlet
Inspection panel
Cover A
Front
Power wiring outlet
CAUTION
● Route the tubing so that it does not contact the
compressor, panel, or other parts inside the unit.
Increased noise will result if the tubing contacts these
parts.
● When routing the tubing, use a tube bender to bend the
tubes.
● In cold-weather regions, in order to prevent drainage
water from freezing, do not install the drain socket cap.
Also take steps to prevent water from accumulating
around the unit.

5. ELECTRICAL WIRING

5-1. 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
and a circuit breaker for overcurrent protection should be
provided in the exclusive line.
Rear
Cover B
Right
Down
Tubing outlet
Fig. 4-2
(3) To prevent possible hazards from insulation failure, the unit
must be grounded.
(4) Each wiring connection must be done in accordance with
the wiring system diagram. Wrong wiring may cause the
unit to misoperate or become damaged.
(5) Do not allow wiring to touch the refrigerant tubing,
compressor, or any moving parts of the fan.
(6) Unauthorized changes in the internal wiring can be very
dangerous. The manufacturer will accept no responsibility
for any damage or misoperation that occurs as a result of
such unauthorized changes.
(7) Regulations on wire diameters differ from locality to
locality. For field wiring rules, please refer to your LOCAL
ELECTRICAL CODES before beginning.
You must ensure that installation complies with all relevant
rules and regulations.
(8) To prevent malfunction of the air conditioner caused by
electrical noise, care must be taken when wiring as follows:
● The remote control wiring and the inter-unit control wiring
should be wired apart from the inter-unit power wiring.
● Use shielded wires for inter-unit control wiring between units
and ground the shield on both sides.
(9) If the power supply cord of this appliance is damaged,
it must be replaced by a repair shop designated by the
manufacturer, because special-purpose tools are required.
5-2. Recommended Wire Length and Wire Diameter
for Power Supply System
Outdoor unit (Single-phase)
Wire size
SPW-C256VH
SPW-C366VH
SPW-C486VH
Outdoor unit (3-phase)
Wire size
SPW-C256VH8
SPW-C366VH8
SPW-C486VH8
SPW-C606VH8
Indoor unit
Type
K
X, XM, T, U, US
Control wiring
(C) Inter-unit
(between outdoor
and indoor units)
control wiring
2
0.75 mm (AWG #18)
Use shielded wiring*
Max. 1,000 m
NOT E
*
With ring-type wire terminal.
38
(A) Power supply
Time delay fuse
or circuit capacity
Max. length
2
4.0 mm 20 m
2
4.0 mm 18 m
2
6.0 mm 20 m
(A) Power supply
Time delay fuse
or circuit capacity
Max. length
2
2.5 mm 58 m
2
2.5 mm 48 m
2
2.5 mm 30 m
2
2.5 mm 26 m
(B) Power supply
Time delay fuse or
circuit capacity
2
2.5 mm
Max. 150 m
Max. 130 m
(D) Remote control (E) Control wiring
wiring for group control
2
0.75 mm (AWG #18) 0.75 mm
Use shielded wiring Use shielded wiring
Max. 500 m Max. 500 m (Total)
25 A
25 A
35 A
16 A
16 A
16 A
20 A
10 A
10 A
2
(AWG #18)