Wiring Diagram; Service And Maintenance - York MBC-MBH 25 Installation & Owner's Manual

MBC 25E/MOC 25 Cooling Only
UNIT CONTROL
HEATER CONTROL
N 1
1
L N 1
Power supply
220-240V/1Ph/50Hz/
208-230V/1Ph/60Hz/
MBH 25E/MOH 25 Heat Pump
UNIT CONTROL
N 1
HEATER CONTROL
L N 1
Power supply
220-240V/1Ph/50Hz/
208-230V/1Ph/60Hz/
Table 3 - Wiring sizes
Unit size
Power supply
m m 2
Interconnection
Cooling mm
(Indoor/Outdoor) Heating mm
Fuse (slow-blow)
A
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.
COMPONENT
Air filter
Unit casing
Drain pan and
evacuation piping
Indoor / Outdoor coils
Compressor

WIRING DIAGRAM

N 1 2 3
2 3 N 1 2 3
2
Outdoor
2 3
unit
N 1 2 3
2 3 N 1 2 3
Outdoor
2 3
unit
25 35
3x4 5x2.5
2
2
20 10

SERVICE AND MAINTENANCE

MAINTENANCE OPERA
1 - Clean with a vacuum cleaner or tap gently then
wash in warm water (40ºC) 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 35-65E/MOC 35-65 Cooling Only
Indoor
4
unit
HEATER CONTROL
Indoor
unit L L
4
1
L L
1
Power supply
380-415V/3Ph/50Hz/
460V/3Ph/60Hz
MBH 35-66E/MOH 35-65 Heat Pump
Indoor
4
unit
HEATER CONTROL
Indoor
L L
4
1
unit
L L
1
Power supply
380-415V/3Ph/50Hz/
460V/3Ph/60Hz
45 55
5x4
3x2.5
4x2.5
16
TIONS
UNIT CONTROL
L
N 1 2 3
2 3
Outdoor
L
N 1 2 3
unit
2 3
UNIT CONTROL
L
N 1 2 3
2 3
Outdoor
L
N 1 2 3
2 3
unit
65
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.
Indoor
N 1 2 3 4
unit
Indoor
N 1 2 3 4
unit
Indoor
N 1 2 3 4
unit
Indoor
N 1 2 3 4
unit