Examples Of Incorrect Wiring - Sanyo PNR-XS2432 Installation Instructions Manual

NOTE
Conduit's trade size for this unit is 1/2". The
conduit can be purchased at a hardware store.
The fuse located in the outdoor unit provides
power supply protection and may blow when
power is applied if the system has been
incorrectly wired.
(5) Ground the unit in accordance with local codes.
(6) Be sure to size each wire allowing several inches
longer than the required length for wiring.
(7) Use lock nuts to secure the conduit tubes.

6-4. 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
2
3
G
Grounding line
Indoor unit Outdoor unit
Problem 3
Compressor will not start; only indoor unit will operate.
Disconnect
(D)
switch
1
2
3
G
Grounding line
Indoor unit Outdoor unit
Be sure to comply with
local codes while running
the wire from the indoor
unit to the outdoor unit
(size of wire and wiring
method, etc.).
Every wire must be
connected firmly.
No wire should be
allowed to touch
refrigerant tubing, the
compressor or any
moving part.
Problem 2
Air conditioner will not operate.
(B)
1 1
2 2
3 3
G
G
Indoor unit
1301_C_I
(E)
1 1
2 2
3 3
G G
Indoor unit
1304_C_I
INDOOR
INDOOR UNIT
1
2
3
Disconnect
switch
(Field supply)
G
CAUTION
Disconnect
switch
1
2
3
G
Grounding line
Outdoor unit
1302_C_I
Disconnect
switch
1
2
3
G
Grounding line
Outdoor unit
1305_C_I
19
S4359128
OUTDOOR UNIT
(Inter-unit)
Power lines
B
230/208 V
1
Fuse
230/208 V
2
230/208 V
3
4
A
L1
5
L2
6
G
Grounding
line
Fig. 6-2
To avoid the risk of
electric shock, each air
conditioner unit must be
grounded.
Be sure to connect the
power supply line to the
outdoor unit as shown in
the wiring diagram. The
indoor unit draws its
power from the outdoor
unit.
Disconnect
(C)
switch
1
2
3
G
Grounding line
Indoor unit Outdoor unit
1823_M_I
1
2
3
G
1303_C_I