York MKL/MKM 25, Technical Manual

Page: 16 / 20

16 CASSETTE
YORK CASSETTE (EN) 035T76015-000
Status Power Timer Operation Mode
OFF(with power on) O O O Normal Operation
ON (Temperature satisfied) X O O Normal Operation
Waiting for delay X F-1 O Normal Operation
Compressor started X O X Normal Operation
Sleep mode X X X/O Normal Operation
Start timer set X F-2 X/O Normal Operation
Stop timer set X F-3 X/O Normal Operation
Low HP temp < 18°C X O F-1 Protection
Coil temp > 40°C (cooling) X O F-2 Protection
Overheat > 62° (heating) X F-1 F-1 Protection
Anti Freeze X F-2 F-2 Protection
Low voltage F-2 O O Protection
Sensor fail F-1 O F-1
Reset-Call Service Technician
Cooling fail F-2 O F-2
Reset-Call Service Technician
Heating fail F-3 O F-3
Reset-Call Service Technician
Emergency operation F-3 Note 1 Note 1
Operational
Test operation F-1 F-1 F-1
Operational
Filter F-3 F-3 F-3 Protection
X = ON, O = OFF, F-1 = ON : 0.5 sec, OFF : 0.5 sec
F-2 = ON : 1.5 sec, OFF : 0.5 sec
F-3 = ON : 0.5 sec, OFF : 1.5 sec
Notes
1) In emergency mode, the Power light will flash and the other lights will indicate the operation as above.
2) Lights will flash during the time that the units is held off, due to Low Voltage. If the voltage has passed through the
reset voltage and the unit is waiting for the time delay, the lights will go to normal operation.
3) The lights will show the LED Diagnostic Code even when the unit is off.
11 - WIRING DIAGRAM
For details of indoor unit and outdoor unit wiring, see the
diagram supplied inside the units. Star t the unit
and check operation both in cooling and heating mode.
This feature is intended to provide information to the consumer as well as for service of the units.
Table 3 - Wiring sizes
Power supply
Fuse (slow-blow)
Interconnection
(Indoor/Outdoor)
Unit size
mm 2
Cooling mm 2
Heating mm 2
A
25 35 45 55
3 x 4 5 x 2.5 5 x 4
3 x 2.5
4 x 2.5
20 10 16
10 - Unit Controller Operation (continued)
MKL/MOL 25 - 35 Cooling Only Units
N 1 2
N L 1 2
Indoor unit
Outdoor unit
Power Supply
220-240V/1Ph/50Hz
208-230V/1Ph/60Hz
MKM/MOM 25 - 35 Heat Pump Units
N 1
N L 1
Indoor unit
Outdoor unit
Power Supply
220-240V/1Ph/50Hz
208-230V/1Ph/60Hz
3
3
2
2
MKL/MOL 25 - 55 - Cooling Only Units
N 1 2
Indoor
unit
L1 L2 L3 N 1 2
Outdoor
unit
380-415V/3Ph/50Hz
460V/3Ph/60Hz
Power Supply
MKM/MOM 25 - 55 - Heat Pump Units
N 1 2 3
Indoor unit
L1 L2 L3 N 1 2 3
Outdoor unit
380-415V/3Ph/50Hz
460V/3Ph/60Hz
Power Supply
03_MKL-MKM.p65 13/6/02, 11:08 am 16