How To Install The Outdoor Unit; Wiring Instructions For The Outdoor Unit - Sanyo KHS0951 Installation Instructions Manual

4. How to Install the Outdoor Unit

First refer to Section 2. Installation Site Selection.

4-1. Wiring Instructions for the Outdoor Unit

Regulations on wire size differ from locality to locality. For field
wiring requirements, please refer to your local electrical
codes. Make sure that the installation fully complies with all
local and national regulations.
(1) Remove access panel. (Fig. 41)
(2) Connect the power line according to the drawing on the
panel side.
(3) Be sure to size each wire allowing approx. 4 in. (10 cm)
longer than the required length for wiring. Store excess
wiring inside the cabinet.
(4) When connections are completed, check that all connec-
tions are correct as shown in the wiring system diagram
on panel side.
(5) Be sure to ground the unit according to your local codes.
CAUTION
Examples of Incorrect Wiring
The following are examples of improper wiring that result in system misoperation. You should confirm that you have
wired the units correctly before beginning the test run.
Problem 1
Short circuit will occur after approx.
3 minutes and the power circuit fuse
blows.
Disconnect
(A)
switch
1 1
2 2
3 3
G G
Grounding line
Outdoor unit
Indoor unit
Problem 3
Compressor will not start; only indoor unit will operate.
Disconnect
(D)
switch
1 1
2 2
3 3
G G
Grounding line
Outdoor unit
Indoor unit
Conduit
plate
Problem 2
Air conditioner will not operate.
Disconnect
(B)
switch
1 1
2 2
3 3
G G
Grounding line
Outdoor unit
Indoor unit
Disconnect
(E)
switch
1 1
2 2
3 3
G G
Grounding line
Outdoor unit
Indoor unit
15
Terminal
block
Lock nut
Plug
Power line
Control line
(Conduit) (Sheath cable)
Fig. 41
Apply sealer (putty, etc.) to
CAUTION
the gap between the sheath
cable and the hole of the
conduit plate to prevent
water from entering.
Disconnect
(C)
switch
1
2
3
G
Grounding line
Indoor unit
Access panel
Power supply
(Conduit)
1
2
3
G
Outdoor unit