York MCC Technical Manual Download Page 6

Prefabricated refrigerant piping is available as an accessory.
If this is not used, piping and insulating materials employed
must be compatible with this type of installation.
Indoor unit gas and liquid line connectors are mounted on
annealed copper tubing stubs and may be shaped to suit the
connection arrangements of your choice. Use the knock-outs
provide in the unit casing. Do not bend stubs to tight angles.
The pre-charged outdoor unit does not require charging if
piping length is 5m or less. However, the interconnecting
piping and the indoor unit must be pumped down before

releasing R22 refrigerant into them from the outdoor unit.

1 -  Remove the cap from the service valve.

2 -  Connect the line to a vacuum pump and pump down
      to  5 Pa.
3 -  When pump down is finisned, wait 15 minutes to detect
      potential circuit leakage. Open service valves on the
      outdoor unit.

* Note

 : The expansion device is located in the outdoor unit.

6

Table 2 - Maximum piping lengths

Note :

  Where the difference in elevation is greater than 5 metres,

            install an oil trap every 5 metres.

Unit size

D(m)

L(m)

H(m)

7

10

15

12

9

10

15

12

12

12

18

15

18

12

18

15

25

20

25

22

35

20

25

22

45

24

30

26

55

24

30

26

If piping length exceeds 7.5 metres, add 15g of refrigerant
R22 per extra metre.

Install the drain hose.

Be sure to arrange the drain hose so that it is
leveled lower than the drain hose connecting
port of the indoor unit.

Drain tube on unit is flexible and can be routed to
suit various piping arrangements. The drainage
line must include an elbow trap (U bend).

Verification of condensate water drainage :

Fill the drain pan and observe evacuation.

6 - Condensate Drainage

7 - Refrigerant Piping Connections

Summary of Contents for MCC

Page 1: ...MOC MOH MCC MCH MINISPLIT Floor Ceiling TECHNICAL GUIDE Cooling only and Heat Pump Systems Models MCC MOC MCH MOH 09 to 25 Infrared remote control 035 T 700049 001...

Page 2: ...make sure that the power supply has been disconnected ELECTRICAL CONNECTIONS All electrical wiring and connections must comply with local standards Power supply cord used must not be lighter than Poly...

Page 3: ...Nominal Current Starting Current Fuse Size Indoor Airflow high speed Indoor unit Outdoor unit V Ph Hz Ph kW A A A m h 09 09 1 0 99 4 6 21 10 490 12 12 1 1 30 6 1 28 10 580 18 18 1 1 89 8 7 43 16 700...

Page 4: ...clearances A minimium of clearance is necessary around the units to ensure proper air circulation and easy access for maintenance Clearance required for indoor units Clearance required for outdoor uni...

Page 5: ...urely tighten the hex bolts on both sides Disassemble the side panels and the air inlet grill as shown First open the grill then remove the side panel installation screws Slide the panel toward the to...

Page 6: ...Pa 3 When pump down is finisned wait 15 minutes to detect potential circuit leakage Open service valves on the outdoor unit Note The expansion device is located in the outdoor unit 6 Table 2 Maximum p...

Page 7: ...point entered on the control SYSTEM OPERATION MODE SELECTION ROOM TEMPERATURE SETTING Press the TEMP button up or down to change the setting to the desired room temperature The setting range is from 1...

Page 8: ...ityofthebatteries and that they are in good working condition Also make sure that the controlispointeddirectlyattheairconditioningunitwhenyouareusing it that the distance is a maximum of 10 meters and...

Page 9: ...it 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...

Page 10: ...nt kit 8 C Inlet air wet bulb temperature indo or unit CWB 10 15 20 25 30 35 20 25 30 35 40 Air intake dry bulb temperature outdoor unit CDB Capacity correction factor C1 Operating temperature range 1...

Page 11: ...35 MSC 35 to 55 MSH 35 to 55 MKC 12 to 55 MKH 12 to 55 MAC 18 to 55 MAH 18 to 55 IS IN COMPLIANCE WITH REQUIREMENTS OF MACHINERY DIRECTIVE CEE 89 392 AS MODIFIED WITH DIRECTIVES CEE 91 368 93 44 93 6...

Page 12: ...the unit into a suitable container using a refrigerant reclaim or recovery unit This refrigerant may then be re used if appropriate or returned to the manufacturer for disposal Under No circumstances...

Reviews: