SERVICE AND MAINTENANCE
WIRING DIAGRAM
L
1
L
2
L
3
N
N
1
1
2
2
3
3
4
N
1
2
3
L
N
1
2
3
4
N
N
1
1
2
2
3
3
4
N
1
2
3
N
1
2
3
4
L
1
L
2
L
3
N
N
1
1
2
2
3
3
4
N
1
2
3
L
N
1
2
3
4
N
N
1
1
2
2
3
3
4
N
1
2
3
N
L
1
L
2
L
3
L
1
L
2
L
3
1
2
3
4
1
2
Table 3 - Wiring sizes
25
35
45
55
65
3x4
5x2.5
5x4
3x2.5
4x2.5
20
10
16
m
Cooling mm
m
2
A
Unit size
Power supply
Interconnection
2
(Indoor/Outdoor) Heating mm
2
Fuse (slow-blow)
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.
The units are designed to operate for long periods of time with a minimum of maintenance. However, the
following operations must be performed regularly.
Air filter
Unit casing
Drain pan and
evacuation piping
Indoor / Outdoor coils
Compressor
RECOMMENDED
FREQUENCY
Every month or more
often if necessary.
Every month or more
often if necessary.
Each season before start up.
Each season before start up.
MAINTENANCE OPERA
COMPONENT
TIONS
1 - Clean with a vacuum cleaner or tap gently then
wash in warm water (40
º
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 - Clean and check for obstructions.
1 - Check condition and remove dust from between
coil fins.
1 - No maintenance required.
MBC 25E/MOC 25 Cooling Only
MBC 35-65E/MOC 35-65 Cooling Only
Power supply
380-415V/3Ph/50Hz/
460V/3Ph/60Hz
Outdoor
unit
Indoor
unit
Outdoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
UNIT CONTROL
UNIT CONTROL
HEATER CONTROL
HEATER CONTROL
Power supply
220-240V/1Ph/50Hz/
208-230V/1Ph/60Hz/
MBH 25E/MOH 25 Heat Pump
MBH 35-66E/MOH 35-65 Heat Pump
Power supply
220-240V/1Ph/50Hz/
208-230V/1Ph/60Hz/
Power supply
380-415V/3Ph/50Hz/
460V/3Ph/60Hz
Outdoor
unit
Indoor
unit
Outdoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
UNIT CONTROL
UNIT CONTROL
HEATER CONTROL
HEATER CONTROL
