Midea 3M-61K Installation Manual page 32

Inverter one-two / one-three /one- four/one-five split-type room air conditioner
Table of Contents

Advertisement

Wiring connection
NOTE: Before performing any electrical
work, turn off the main power to the system.
CAUTIONS
Do not touch the capacitor even if you
have disconnected the power for there is
still high voltage power on it, or electric
shock hazard may occur. For your safety,
you should start repairing at least 5 minutes
later after the power is disconnected.
The power is supplied from the Outdoor
Unit. The Indoor Units are connected
with signal wires or power cords are
connected reliably and correctly, or the
air conditioner could not run normally.
NOTE:
The cable size and the current of thefuse or
switch are determined by the maximum current
indicated on the nameplate which located on the
side panel of the unit. Please refer to the
nameplate before selecting the cable, fuse and
switch. Please refering to the above tables and
choosing the proper wire size under the local
electrical requirements.
Connect the cable to the outdoor unit
1. Remove the electrical control board cover
from the outdoor unit by loosening the screw
as shown in Fig.61
2. Connect the connective cables to the
terminals as identified with their respective
matched numbers on the terminal block of
indoor and outdoor units.
3. Secure the cable onto the control board with
the cord clamp.
4. To prevent the ingress of water, from a loop
of the connective cable as illustrated in the
installation diagram of indoor and outdoor
units.
5. Insulate unused cords (conductors) with
PVC-tape.Process them so they do not
touch any electrical or metal parts.
CAUTIONS
Make sure to connect the indoor unit (A,B, C, D,
E) to the Hi and Lo valve and terminals of signal
wires(A, B, C, D, E) of outdoor unit as identified
with their respective matched connection.
Wrong wiring connections may cause some
electrical parts to malfunction.
ELECTRICAL WORK
Minimum norminal cross-sectional area
of conductors:
Rated current of appliance
(A)
>3 and <6
>6 and <10
>10 and <16
>16 and <25
Suggest Minimum Wire Size
(AWG:
American Wire Gage
Appliance Amps AWG Wire Size
10
13
18
25
30
Connection Cable
10mm
Fig.62
POWER
Connective cable
Connective cable
of indoor unit and
of indoor unit and
outdoor unit
outdoor unit
One-two
31
Nominal cross-sectional
2
area (mm )
0.75
1
1.5
2.5
):
18
16
14
12
10
Screw
Cover
Fig.61
40mm
Connective cable
Connective cable
Connective cable
of indoor unit and
of indoor unit and
of indoor unit and
outdoor unit
outdoor unit
outdoor unit
One-three
One-four
One-five
E
E

Advertisement

Table of Contents
loading

This manual is also suitable for:

2m-53k

Table of Contents