Electrical Work Electrical Work - Heat Controller VMH 09 Installation Manual

VMH Inverter Mini-Split
Electrical Work
ELECTRICAL WORK
Power supply
208-230V~60Hz
NOTE: The supply voltage must be consistent
with the rate voltage of the air conditioner.
Connect the cable to the indoor unit
NOTE: Before performing any electrical
work, turn off the main power to the system.
1. The inside and outside connecting cable can
be connected without removing the front grille.
2. Connecting cable between indoor unit and
outdoor unit shall be approved polychloroprene
sheathed flexible cord, type designation
• Do not touch the capacitor even if you have
H07RN-F or heavier cord.
disconnected the power or electric shock haz- 3. Lift the indoor unit panel up, remove the
electrical box cover by loosening the screw
ard may occur. For your safety, you should start
as shown in Fig.22.
repairing at least 5 minutes after the power is
4. Ensure the colour of wires of outdoor unit
disconnected.
and the terminal Nos. are the same to the
,
,
indoor s respectively.
• The power is supplied from the Outdoor Unit.
5. Wrap those cables not connected with
Up to four indoor units are connected with signal terminals with insulation tapes, so that they
will not touch any electrical components.
wires or power cords.
Secure the cable onto the control board with
the cord clamp.
Connect the cable to the indoor unit
NOTE: Before performing any electrical work, turn
off the main power to the system.
1. The inside to outside connecting cable can be con-
Connect the cable to the outdoor unit
nected without removing the front grille.
1. Remove the cover control from the unit by
loosening the 3 screws. See Fig.23.
2. Connecting cable between indoor unit and outdoor
2. Dismount caps on the conduit panel.
unit shall be approved polychloroprene sheathed flex-
3. Temporarily mount the conduit tubes(not included)
ible cord, type designation H07RN-F or heavier cord.
on the conduit panel.
3. Lift the indoor unit panel up, remove the electrical 4. Properly connect both the power supply and low
voltage lines to the corresponding terminals on
box cover by loosening the screw as shown in Fig.23.
the terminal block.
4. Ensure the color of wires of outdoor unit and the ter-
5. Ground the unit in accordance with local codes.
minal Nos. are the same to the indoors respectively.
6. Be sure to size each wire allowing several inches
longer than the required length for wiring.
5. Wrap those cables not connected with terminals with
7. Use lock nuts to secure the conduit tubes.
insulation tape, so that they will not touch any electri-
cal components. Secure the cable onto the control
board with the cord clamp.
INSTALLATION MANUAL
Input Rated Amp
(Switch/Fuse)
32A/25A
(<12000Btu/h)
40A/30A
(>12000Btu/h)
Minimum norminal cross-sectional
area of conductors:
Nominal cross-sectional
Rated current
of appliance
(A)
>3 and <6
>6 and <10
>10 and <16
>16 and <25
Terminal block of indoor unit
L1 L2 S
or
To outdoor unit
Outdoor unit
Terminal block
10
11
Heat Controller, Inc.
area
(ft2)/(mm ) 2
8.1/0.75
10.8/1
16.21.5
27/2.5
Panel
Electrical box
cover
L1 L2 S
To outdoor unit
Fig. 23
Fig.22
Conduit panel
G
Connecting
cable
Power supply
cord
Cover control
Fig.23a