Johnson Controls DHM18CMB21S, Installation And Maintenance Manual

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5
2
.
3.
4.
5.
1. Remove the handle at the right side plate of the
outdoor unit (
10
screw
s
).
Remove the cable clamp, connect the connection cable
and power cable with the terminal at the row of connection
and fix the connection. The fitting line distributing must be
consistent with the indoor unit terminal of line bank. Wiring
should meet that of indoor unit.
Fix power connection wire
with
wire clamp.
Ensure wire has been
secured
well.
Install the handle.
DHM24CMB21S
An all-pole disconnection switch having a contact
separation of at least 3mm in all pole
s
should be
connected
with
fixed wiring.
Wrong wire connection may cause malfunction of some
electric components.After fixing cable, ensure that
leads between connection
s
to fixed point have some
space.
The connection pipes and the connection wirings of
unit
s
A, B and C must correspond to each other
respective
ly
.
The appliance shall be installed in accordance
with national
and local
wiring regulations.
Do not install the outdoor unit where it is exposed
to
the
sun.
To the power supply
To unit B
To unit A
cable
connection connection
cable
To unit C
connection
cable
Outdoor unit
Indoor unit
L1 L2
L1
L1
L2
L2
Power cable
A
B
C
connection cable
connection cable
connection cable
1) The power cable should be put in from the hole under
connection cable cover.
2) If connecting with two indoor units, the connection cable
should be put in from hole A and hole B.
3) If connecting with three indoor units, the connection cable
should be put in from hole
s
A , B and C.
4) If connecting with four indoor units, the connection cable
should be put in from hole
s
A, B, C and D.
All power cables and connection cables must be protected with conduits.
C B A
3 2
N(1)
3 2
N(1)
3 2
N(1)
Note:
The above is
only intended to be a simple diagram
of the appliance and may not correspond to the
appearance of the units that have been purchased.
power
cable