COMPONENT
E 1
2
1
N
A
E
2
Power Supply
220-240V/1Ph/50Hz
208-230V/1Ph/60Hz
N
2
3
23
N
E
N
1
EA
Power Supply
220-240V/1Ph/50Hz
208-230V/1Ph/60Hz
1
Outdoor unit
Power Supply
380-415V/3Ph/50Hz
Power Supply
380-415V/3Ph/50Hz
2
3
N
E
1
E
N12
RE
S
TN
12
Table 3 - Wiring sizes
Unit size
Power supply
Fuse (slow-blow)
mm
2
2
2
Interconnection
(Indoor/Outdoor)
Cooling mm
Heating mm
A
2
RE
S
TN
1
3
3x2.5
10
For details of indoor unit and outdoor unit wiring, see the diagram
supplied inside the units. Start the unit and check operation both
in cooling and heating mode.
Indoor unit
Indoor
unit
Outdoor
unit
▲
▲
▲
▲
▲
▲
▲
MCH/MOH 25 - Heat Pump Units
MCH/MOH 09 - 25 - Heat Pump Units
Indoor
unit
▲▲▲▲
MCC/MOC 25 - Cooling Only Units
MCC/MOC 09 - 25 Cooling Only Units
Indoor
unit
Outdoor
unit
Outdoor
unit
9
The units are designed to operate for long periods of time with a minimum of maintenance. However, the following operations must be
performed regularly.
RECOMMENDED
FREQUENCY
MAINTENANCE OPERATIONS
1 - Clean with a vacuum cleaner or tap gently then
wash in warm water (40°C) with a mild detergent.
2 - Rinse and dry before replacing on unit.
3 - Never use petrol, alcohol or any other chemical
product.
1 - Remove dust from the front panel with a soft duster
or wipe a dump cloth with a mild soap solution.
2 - Never use petrol, alcohol or any other chemical
product.
1 - No maintenance required.
Drain pan and
evacuation piping
Unit casing
Air filter
Indoor / Outdoor coils
Compressor
1 - Check condition and remove dust from between
coil fins.
1 - Clean and check for obstructions.
Every month or more
often if necessary
Every month or more
often if necessary
Each season before start up.
Each season before start up.
9 12 18 25
3x2.5
3x4
4x2.5
16
20
10 - Wiring Diagram
11 - Service and Maintenance
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