13
GB
2. Ensure that any cross-wise drain piping is less than 20 m (excluding the difference
of elevation). If the drain piping is long, provide metal braces to prevent it from
waving. Never provide any air vent pipe. Otherwise drain may be ejected.
3. Use a hard vinyl chloride pipe VP-25 (with an external diameter of 32 mm) for
drain piping.
4. Ensure that collected pipes are 10 cm lower than the unit body’s drain port as
shown in
2
.
5. Do not provide any odor trap at the drain discharge port.
6. Put the end of the drain piping in a position where no odor is generated.
7. Do not put the end of the drain piping in any drain where ionic gases are gener-
ated.
[Fig. 9.2.1] (P. 5)
9.3. Connecting electrical connections
Verify that the model name on the operating instructions on the cover of the control
box is the same as the model name on the nameplate.
Step 1
Remove the screws holding the terminal box cover in place.
[Fig. 9.3.1] (P. 5)
Note:
Ensure that the wiring is not pinched when fitting the terminal box cover.
Pinching the wiring may cut it.
Caution:
Install wiring so that it is not tight and under tension. Wiring under tension
may break, or overheat and burn.
• Fix power source external input/output line wiring to control box by using buffer
bushing for tensile force to prevent electric shock. (PG connection or the like.)
Connect transmission wiring to transmission terminal block through the knockout
hole of control box using ordinary bushing.
• After wiring is complete, make sure again that there is no slack on the connec-
tions, and attach the cover onto the control box in the reverse order removal.
[Fig. 9.3.2] (P. 5)
Caution:
Wire the power supply so that no tension is imparted. Otherwise disconnec-
tion, heating or fire result.
10. Electrical wiring
Precautions on electrical wiring
Warning:
Electrical work should be done by qualified electrical engineers in accordance
with “Engineering Standards For Electrical Installation” and supplied installa-
tion manuals. Special circuits should also be used. If the power circuit lacks
capacity or has an installation failure, it may cause a risk of electric shock or
fire.
1. Be sure to take power from the special branch circuit.
2. Be sure to install an earth leakage breaker to the power.
3. Install the unit to prevent that any of the control circuit cables (remote controller,
transmission cables, or external input/output line) is brought in direct contact with
the power cable outside the unit.
4. Ensure that there is no slack on all wire connections.
5. Some cables (power, remote controller, transmission cables, or external input/out-
put line) above the ceiling may be bitten by mouses. Use as many metal pipes as
possible to insert the cables into them for protection.
6. Never connect the power cable to leads for the transmission cables. Otherwise
the cables would be broken.
7. Be sure to connect control cables to the indoor unit, remote controller, and the out-
door unit.
8. Be sure to ground the unit.
9. Select control cables from the conditions given in page
13
.
Caution:
Be sure to put the unit to the ground on the outdoor unit side. Do not connect
the earth cable to any gas pipe, water pipe, lightening rod, or telephone earth
cable. Incomplete grounding may cause a risk of electric shock.
Types of control cables
1. Wiring transmission cables
• Types of transmission cables
Design wiring in accordance with the following table <Table 1>.
• Be sure to use cables supplied with supplementary insulation.
1. Transmission cables
PWFY-P100VM-E-BU
PWFY-P140VM-E1/E2-AU
10.1. Power supply wiring
• Power supply cords of appliances shall not be lighter than design 245 IEC 57 or
227 IEC 57.
• A switch with at least 3 mm contact separation in each pole shall be provided by
the Air conditioner installation.
• If allowing wires inside the unit to hang loosely so as to prevent water from collect-
ing and running down into electrical components, be careful not to let the wires
hang so loosely as to come into contact with nearby piping (solenoid valves). If
there is any risk of contact being made, use the included buffer material to protect
other components.
ELECTRICAL WORK
1. Electrical characteristics
A
Downward slope 1/100 or more
B
Drain hose
C
Unit
D
Collective piping
E
Maximize this length to approx. 10 cm
A
Screws
B
Front panel
C
Control box
A
To prevent external tensile force from applying to the wiring connection section of
power source terminal block use buffer bushing like PG connection or the like.
B
External signal input cable
C
External signal output cable
D
Power source wiring
E
Tensile force
F
Use ordinary bushing
G
Transmission cable and MA remote controller cable
Transmission cables
MA Remote controller cables
External input
External output
Type of cable
Shielding wire (2-core)
CVVS, CPEVS or MVVS
Sheathed 2-core cable (shielded)
CVVS
Sheathed multi-core cable (shielded)
CVVS or MVVS
Sheathed multi-core cable (shielded)
CVVS or MVVS
Cable diameter
More than 1.25 mm
2
0.3 ~ 1.25 mm
2
(0.75 ~ 1.25 mm
2
)*1
0.3 ~ 0.5 mm
2
0.3 ~ 1.25 mm
2
Remarks
-
Max.length: 200 m
Max.length: 100 m
Rated voltage: L1-N: 220 ~ 240 V
Rated load: 0.6 A
Transmission cables
MA Remote controller cables
External input
External output
Type of cable
Shielding wire (2-core)
CVVS, CPEVS or MVVS
Sheathed 2-core cable (shielded)
CVVS
Sheathed multi-core cable (shielded)
CVVS or MVVS
Sheathed multi-core cable (shielded)
CVVS or MVVS
Cable diameter
More than 1.25 mm
2
0.3 ~ 1.25 mm
2
(0.75 ~ 1.25 mm
2
)*1
0.3 ~ 0.5 mm
2
0.3 ~ 1.25 mm
2
Remarks
-
Max.length: 200 m
Max.length: 100 m
Rated voltage: L1-N: 220 ~ 240 V
Rated load: 0.6 A
*1 Connected with simple remote controller. CVVS, MVVS : PVC insulated PVC jacketed shielded control cable
CVV, MVV
: PVC insulated PVC sheathed control cable
CPEVS
: PE insulated PVC jacketed shielded communication cable
Model
Power supply
Compressor
RLA (A)
Hz
Volts
Voltage range
MCA (A)
Output (kW)
SC (A)
Heating
PWFY-P100VM-E-BU
50/60
220-230-240 V
Max. 264 V
Min. 198 V
15.71
1.0
1.25
11.63-11.12-10.66
WT07507X01.book 13 ページ ２０１４年１２月１７日 水曜日 午前９時３６分
