Table of Contents
Advertisement
Available languages
Available languages
1. Plug the drain pump test connector (accessory) into the connector on the
same side as the control box. For more details, see the information on the
control box cover.
2. Remove the polyethylene plug on the same side as the indoor unit piping.
3. Fill water into the feed water pump using a feed water tank. In filling, be sure
to put the end of the pump or tank in a drain pan. (If the insertion is incom-
plete, water may flow over the machine.)
4. Turn on the main power. The drain pump is forced to operate without any
remote controller operation. Make sure using a transparent hose that drain is
discharged.
8. Electrical wiring
Precautions on electrical wiring
Warning:
Electrical work should be done by qualified electrical engineers in accord-
ance with "Engineering Standards For Electrical Installation" and supplied
installation manuals. Special circuits should also be used. If the power cir-
cuit lacks capacity or has an installation failure, it may cause a risk of elec-
tric 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 control-
ler, transmission cables) is brought in direct contact with the power cable out-
side the unit.
4. Ensure that there is no slack on all wire connections.
5. Some cables (power, remote controller, transmission cables) above the ceil-
ing 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. Other-
wise the units would be broken.
7. Be sure to connect control cables to the indoor unit, remote controller, and
the outdoor unit.
8. Select control cables from the conditions given in below.
Caution:
Be sure to ground the indoor unit. Do not connect the grounding cable to
any gas pipe, water pipe, lightening rod, or telephone earth cable. Incom-
plete grounding may cause a risk of electric shock.
8.1. 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 [1/8 in] contact separation in each pole shall be
provided by the Air conditioner installation.
Wire size for Main Power Supply and On/Off Capacities.
2
•
Minimum Wire size (mm
/AWG)
•
Switch (A)
•
Breaker for Wiring (NFB)
•
Breaker for Current Leakage
Main Cable: 0.41/22
Branch:
0.41/22
Ground:
0.41/22
Capacity: 15 Fuse: 15
: 15 A
: 20 A 30 mA 0.1 sec. or less
5. After confirmation, turn off the main power, remove the connector, and insert
the polyethylene plug into its original position.
[Fig. 7.3.1] (P.4)
Insert the pump's end 2 to 4 cm [13/16 to 1-19/32 in].
Remove the polyethylene plug.
About 1000 cc
Filling port
Types of control cables
1. Wiring transmission cables
•
Types of transmission cables: Shielding wire CVVS or CPEVS
•
Cable diameter: More than 1.25 mm
•
Maximum wiring length: Within 200 m [656ft]
•
Maximum length of transmission lines for centralized control and indoor/out-
door transmission lines (Maximum length via indoor units): 500 m [1640ft]
MAX
The maximum length of the wiring between power supply unit for transmis-
sion lines (on the transmission lines for centralized control) and each outdoor
unit and system controller is 200 m [656ft]
2. Remote control cables
•
M-NET Remote Controller
Kind of remote control cable
0.3 to 1.25 mm
Cable diameter
(0.75 to 1.25 mm
When 10 m [32ft] is exceeded, use cable
Remarks
with the same specifications as 1. Wiring
transmission cables.
•
MA Remote Controller
Kind of remote control cable
0.3 to 1.25 mm
Cable diameter
(0.75 to 1.25 mm
Remarks
Within 200 m [656ft]
*
Connected with simple remote controller.
[Fig. 8.1.1] (P.4)
Switch 15 A (Breakers for Current Leakage)
Switch 15 A (Breakers for Wiring or Main Switch)
Indoor unit
Total operating current be less than 15 A
Pull box
Caution:
Do not use anything other than the correct capacity breaker and fuse.
Using fuse, wire or copper wire with too large capacity may cause a risk of
malfunction or fire.
Water
2
[AWG16]
Sheathed 2-core cable (unshielded)
2
[AWG22 to 16]
2
[AWG18 to 16])*
Sheathed 2-core cable (unshielded) CVV
2
[AWG22 to 16]
2
[AWG18 to 16])*
11
Advertisement
Chapters
Table of Contents
