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English
9
10 WIRING EXAMPLE AND HOW TO SET
THE REMOTE CONTROLLER
10. 1 OPENING AND SHUTTING THE ELECTRIC
PARTS BOX AND CONNECTING THE WIRING
CAUTION
Be sure to power off before opening the electric parts box.
•
Remove the electric parts box lid and wire as shown in the
figure below.
CAUTION
• See “Electrical Wiring Diagram label” on the backside of the
lid of the electric parts box for electric wiring work.
•
Be sure to attach the sealing material or putty (locally pro-
cured) to hole of wiring to prevent the infiltration of water as
well as any insects and other small creatures from outside.
Otherwise a short-circuit may occur inside the electric parts
box.
• When clamping the wires, be sure no pressure is applied to
the wire connections by using the included clamping material
to make appropriate clamps. Also, when wiring, make sure
the lid on the electric parts box fits snugly by arranging the
wires neatly and attaching the electric parts box lid firmly.
When attaching the electric parts box lid, make sure no wires
get caught in the edges. Pass wiring through the wiring
through holes to prevent damage to them.
• Make sure the remote controller wiring, the wiring between
the units, and other electrical wiring do not pass through the
same locations outside of the unit, separating them by at least
50mm, otherwise electrical noise (external static) could
cause mistaken operation or breakage.
10. 2 Connecting power supply wiring and ground
wiring
•
Pass the power supply wiring and the ground wiring through
the wiring through-hole into the electrical parts box and
secure with the included clamping material after connecting
the wires to terminal blocks.
(Refer to Fig. 17-1, 17-2)
〈〈〈〈
Precautions when laying power supply wiring
〉〉〉〉
[PRECAUTIONS]
[1] A circuit breaker capable of shutting down power supply to
the entire system must be installed.
[2] A single switch can be used to supply power to units on the
same system.
However branch switches, branch overload circuit interrupter
must be selected carefully.
[3] Fit the power supply wiring of each unit with a switch and
fuse as shown in the drawing.
COMPLETE SYSTEM EXAMPLE
SS1
X1M
X3M
A3P
A1P
A2P
NOR.
M
H
Electric parts
box lid
Space for installation of
adapter PC board (KRP2A1)
Space for
installation of
adapter PC board
(KRP50-2)
Factroy setting
Power supply wiring
and Ground wiring
Power wiring through-hole
Transmission wiring
through-hole
Do not change the switch settings.
NOTE) A3P: VKM-GMV1 series only
SS1 is the switch for setting
the remote controller.
The unit will not run if the settings
are changed.
Clamp
(accessory)
Resin Clamp parts
Short-circuit wire
Remove when installing
the humidistat
(locally procured).
Wiring for the
humidistat
Clamp
Resin Clamp parts
Resin Clamp parts
Power supply wiring
Ground wiring
(accessory)
1 2 L N
L N
Grounging terminal
Terminal block (X1M) details
〈
VKM-GMV1 series
〉
(M4 screws, spring
washers, cup washers)
Fig. 17-1
Clamp
Power supply wiring
Ground wiring
(accessory)
Grounging terminal
Terminal block (X1M) details
〈
VKM-GV1 series
〉
(M4 screws, spring
washers, cup washers)
Fig. 17-2
Power supply wiring
Sheathed cable
(H05VV-03G)
Transmission wiring
Sheathed cable
Switch
Fuse
Power supply
Remote controller
VRV
Indoor unit
VRV
Indoor unit
VRV
Outdoor unit
HRV (VKM)
HRV (VKM)
01_3P130768-1A_En.fm Page 9 Wednesday, March 23, 2005 7:00 PM