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FAN SPEED CONTROLLER

1      2      3     4

1

3

4

9

7

8

2

5

6

95

100

4- ø5.4

Note : For very low temperature operation in cooling mode we

recommend  to  set  the  Changeover  Switch

  to  ‘cut-off’

position.

NO.

1.
2.
3.
4.
5.
6.
7.
8.
9.

Parts Name

Bellows
Wiper
Operating Plate
Range Adjusting Screw
Coil Spring
Terminal Board
Changeover Switch
Pressure Connector
Range Setting Pointer

Indoor unit

Copper Packing

Cut

Off

Min

Speed

Slide Potentiometer

(CW)

Increase the

set valve

Decrease the

set valve

(CCW)

Capillary Tube

(900 mm Length)

Conduit Gland

1/4 Female Flare with Schrader

COOLING CIRCUIT - PRESSURE TAP LOCATION

PRESSURE TAP

Outdoor unit

C a u t i o n

Risk of electric shock

A fan speed controller is provided as standard on full featured condensing units and can be installed also as an accessory in the

field  on  all  N  series  condensing  units  that  are  equipped  with  a  pressure  tap  (see  diagram  below)  for  easy  installation. The

Saginomiya pressure type controller (YORK P/N 025T20003-000) is recommended. Fan speed controllers should be added when

the units are installed where operation in cool mode is required during periods with low outdoor ambient temperatures. Complete

installation instructions are included with every fan speed controller kit ordered from the factory.

Summary of Contents for MOC-MOH 07-65

Page 1: ...e line protection The unit must be grounded Installation and maintenance of this air conditioning system should only be carried out by trained and qualified personnel Regular maintenance operations such as cleaning the coils and air filters must be performed to keep the units in proper operati ng condition EN FR 035T83112 001 The units are shipped complete with a charge of R22 R407C refrigerant su...

Page 2: ... 1 590 820 280 56 58 5 8 3 8 1 2 55 12 34 61 1650 1600 1 696 850 285 65 67 5 8 3 8 25 3 3 53 6 77 48 1 35 5 8 3 8 3 5 71 9 10 53 3 6 79 11 72 62 3000 3000 1 1142 850 285 87 88 3 4 3 8 45 3800 3800 1 1142 1060 345 109 111 3 4 3 8 55 900 850 285 76 77 208 230 1 60 or 460 3 60 Reciprocating 2800 2500 1 3 57 16 17 81 1 5 8 3 8 220 240 1 50 or 380 415 3 50 MOC MOH R22 Scroll Flare Nuts 07 1 0 78 3 6 20...

Page 3: ...300 800 200 400 100 300 800 200 400 100 300 800 40 45 55 65 07 12 400 200 100 210 600 To prevent ice build up beneath the unit during winter operation it may be necessary to increase the dimension of C by 50 to 100 mm MOC MOH 07 18 MOC MOH 25 35 MOC MOH 40 65 MOC MOH 07 18 MOC MOH 25 35 MOC MOH 40 65 A minimum of clearance is necessary around the units to ensure proper air circulation and easy acc...

Page 4: ... sunlight especially if it is a cooling only model since direct sunlight will increase condensing pressure and reduce unit efficiency Install units facing North whenever possible In particularly windy places the unit should be installed so that the prevailing wind does not interfere with air discharge from the unit configuration with the wind blowing onto the side of the unit MOH heat pump unit in...

Page 5: ...tall the flare connectors and flare the ends of the pipes Heat pump discharge Evacuate the piping This operation which should last at least 15 minutes or even longer if there are large piping lengths and changes in elevation should be followed by a leak test To this effect when the piping has been evacuated close the pressure gauge tap note the value on the gauge then wait for 15 minutes If the ne...

Page 6: ... 860 0 856 0 852 0 849 0 845 0 842 0 838 0 835 0 831 0 828 0 824 Pipe Length L H 0 m H 3 m H 5 m H 10 m H 20 m H 25 m H 30 m Pipe Length L H 0 m H 3 m H 5 m H 10 m H 20 m H 25 m H 30 m 0 974 0 973 0 972 0 971 0 970 0 969 0 969 0 968 0 967 0 966 0 965 0 964 0 963 0 963 0 962 0 961 0 960 0 959 0 958 0 957 0 957 0 956 0 964 0 963 0 962 0 961 0 960 0 959 0 959 0 958 0 957 0 956 0 955 0 954 0 953 0 953...

Page 7: ...solating valves have been fully opened That the refrigerant charge has been topped up if necessary Start the units and check operation in both the cooling and the heating mode Unit base plate Compressor Diagram n 1 MOC 18 MOH 18 Coil DEFROST Defrost is handled via a defrost management electronic control board model with two potential meters and 6 dip switches see diagram n 2 This enables defrost c...

Page 8: ...le Flare with Schrader COOLING CIRCUIT PRESSURE TAP LOCATION PRESSURE TAP Outdoor unit C a u t i o n Risk of electric shock A fan speed controller is provided as standard on full featured condensing units and can be installed also as an accessory in t he field on all N series condensing units that are equipped with a pressure tap see diagram below for easy installation The Saginomiya pressure type...

Page 9: ...ome characteristic sounds that differentiate if from those normally associated with reciprocating type compressors These sounds described below are characteristics and do not affect reliability or indicate that the compressor is defective Cautions 1 Three phase scrolls will only pump when running in right direction 2 Verify rotation on initial start up by checking pressure 3 To correct improper mo...

Page 10: ...ry check that motors are operating properly Check wire gauges etc Replace it Remedy Cause Symptoms Remedy Ice build up indoor coil Faulty installation Compressor noisy Thermostat Safety device Excessive discharge pressure Insufficient discharge pressure Excessive suction pressure Insufficient suction pressure Low refrigerant charge refrigerant leak Insufficient airflow Low operating temperature li...

Page 11: ...ating valve with pressure tap 7 HP pressure switch Interseason start up safety 8 4 way cycle changeover valve 9 Anti slugging receiver 10 Restrictor Unit Capacity Total cooling capacity can be determined by using correction factors C1 C2 and C3 Given cooling capacity Cooling capacity at standard rating conditions x C1 x C2 x C3 C1 Capacity correction factor for temperature C2 Capacity correction f...

Page 12: ...l and gas isolation are secured in the OFF position The supply cables and gas pipework may then be disconnected and removed For points of connection refer to unit installation instructions 2 Remove all refrigerant from each system of the unit into a suitable container using a refrigerant reclaim or recovery unit This refrigerant may then be reused if appropriate or returned to the manufacturer for...

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