York YOCC-YOHC 12-60 User Manual download pdf (Page 3)

Q(E)

Y/G

Q(E)

L1 L2 L3 N

XT1

ABC 1N

ABCN

123

XT2 XT1

■ Maximum Piping Lengths

Note : Where the difference in elevation between the indoor unit and the outdoor unit is greater than

5 meters, install an oil trap every 5 meters.

The suction line must have a 2% gradient up to the compressor on horizontal

sections.

Where piping lengths are unusually long and include a large number of oil

traps, it may be necessary to adjust to compressor charge.

■ Refrigerant Piping Connections (FLARE Connections)

To avoid alteration of unit capacities, check that piping lengths and changes in

elevation are kept to a strict minimum.

Before connection the refrigerant lines, follow the procedures below (if precharged

connection lines are not supplied):

– Select copper pipe diameters according to the size of unit to be installed.

– Install the refrigeration lines, checking that no foreign bodies get inside the

piping.

– Install the ﬂ are connectors and ﬂ are the ends of the pipes.

Refrigerant charge to be added per extra metre of piping length when

more than 7 meters.

TEST OPERATION

CHECK THIS ITEM BEFORE START OPERATION

Outdoor

Check the ﬂ are nut connections, valve stem cap connections and service cap

connections for gas leak with a leak detector or soap water.

Indoor

• Check the unit is ﬁ rmly ﬁ xed.

• Check the connecting pipes are tighten securely.

• Check the pipe insulation.

• Check the drainage.

• Check the connection of the grounding wire.

TROUBLESHOOTING GUIDE

This unit is shipped complete with a charge of R-22/R-407C refrigerant that will

be sufﬁ cient for an interconnecting piping length of 7.5 meters.

Unit size 12 18 24 30 36 48 60

g/m 15 40 40 40 40 60 60

Low Pressure

Gas Valve

Liquid Valve

Pressure Tap

Manifold

High Pressure

12000 Btu/h (1 PHASE)

Air Conditioner Link-circuit (For R-410A and R-407C, Cooling

Only)

18000 Btu/h (1 PHASE)

Air Conditioner Link-circuit (For R-410A, Cooling Only)

36000~60000 Btu/h (3 PHASE)

Air Conditioner Link-circuit (For R-410A, R-407C and R-22,

Cooling & Heating)

Chart 23Chart 22

24000 Btu/h (1 PHASE)

Air Conditioner Link-circuit (For R-410A, Cooling Only)

18000 Btu/h (1 PHASE)

Air Conditioner Link-circuit (For R-22, Cooling Only)

36000~60000 Btu/h (3 PHASE)

Air Conditioner Link-circuit (For R-410A, R-407C and R-22,

Cooling Only)

Chart 24

Chart 26Chart 25

Chart 29Chart 28

24000~36000 Btu/h (1 PHASE)

Air Conditioner Link-circuit (For R-407C, Cooling Only)

24000~36000 Btu/h (1 PHASE)

Air Conditioner Link-circuit (For R-22, Cooling & Heating)

Chart 32Chart 31

24000~30000 Btu/h (3 PHASE)

Air Conditioner Link-circuit (For R-407C, Cooling & Heating)

24000~30000 Btu/h (3 PHASE)

Air Conditioner Link-circuit (For R-407C, Cooling only)

Y&G

XT3 XT4

Y&G

1234

ABCN 1

XT1

XT2

5-core cable 5x2.5mm

3-core cable 3x1.5mm

OUTDOOR UNIT

INDOOR UNIT

POWER:

380V 3N~50Hz

5-core cable 5x2.5mm

L N12(N)

3-core cable 3x2.5mm

3-core cable 3x2.0mm

OUTDOOR UNIT

INDOOR UNIT

POWER:

220-240V~50Hz

XT1

XT3

LN1 32

3-core cable 3x2.5mm

OUTDOOR UNIT

INDOOR UNIT

POWER:

220-240V~50Hz

3-core cable 5x2.5mm

1-core cable 1x2.0mm

OUTDOOR UNIT

INDOOR UNIT

POWER:

380V 3N~50Hz

5-core cable 5x2.5mm

L N 1 2(N)

3-core cable 3x2.5mm

3-core cable 3x2.0mm

OUTDOOR UNIT

INDOOR UNIT

POWER:

220-240V~50Hz

Chart 27

24000~36000 Btu/h (1 PHASE)

Air Conditioner Link-circuit (For R-22, Cooling only)

XT2

E XT1

T 3 E

L(1) N(1)

XT4

Y&G

123 456

Y&G

XT1 T3

XT2

LN12 3

3-core cable 3x2.5mm

OUTDOOR UNIT

INDOOR UNIT

POWER:

220-240V~50Hz

1-core sheild wire 1x0.5mm

XT2

E XT1

T 3 E

L(1) N(1)

XT4

Y&G

123 456

Y&G

XT1 T3

XT2

LN12 3

3-core cable 3x2.5mm

OUTDOOR UNIT

INDOOR UNIT

POWER:

220-240V~50Hz

1-core sheild wire 1x0.5mm

3-core cable 3x2.0mm

3-core cable 3x2.5mm

OUTDOOR UNIT

INDOOR UNIT

POWER:

220-240V~50Hz

LN1 32

XT3

XT1

XT2

XT1

T3 GND +5V

ABC N

Y&G

XT4

123 45 6

Y&G

ABCN1

XT1

XT2

T3 GND +5V

23(4)5

XT2

XT1

T3 GND +5V

ABCN

Y&G

XT4

123 45 6

Y&G

ABCN 1

XT1

XT2

T3 GND +5V

23(4)5

Chart 30

30000~36000 Btu/h (1 PHASE)

Air Conditioner Link-circuit (For R-407C, Cooling & Heating)

XT2

XT1

Y&G

XT1 XT2

T3 E

3-core cable 3x2.5mm

OUTDOOR UNIT

INDOOR UNIT

POWER:

220-240V~50Hz

1-core sheild wire 1x0.5mm

3-core cable 3x2.0mm

5-core cable 3x2.5mm

OUTDOOR UNIT

INDOOR UNIT

POWER:

380V~50Hz

2-core sheild wire 1x0.5mm

4-core cable 3x2.0mm

5-core cable 3x2.5mm

OUTDOOR UNIT

INDOOR UNIT

POWER:

380V~50Hz

2-core sheild wire 1x0.5mm

4-core cable 3x2.0mm

Problem Probable cause Remedy

The air conditioner does not

run.

1. Power Failure.

2. Fuse blown or circuit breaker open.

3. Voltage is too low.

4. Faulty contactor or relay.

5. Electrical connections loose.

6. Thermostat adjustment too low (in heating mode) or too high

(in cooling mode).

7. Faulty Capacitor.

8. Incorrect wiring, terminal loose.

9. Pressure switch tripped.

1. Wait for Power resume.

2. Replace the fuse or reset the breaker.

3. Find the cause and ﬁ x it.

4. Replace the faulty component.

5. Retighten the connection.

6. Check Thermostat setting.

7. Find the cause then replace Capacitor.

8. Check and retighten.

9. Find the cause before reset.

B. The outdoor fan runs but the

compressor will not start.

1. Motor winding cut or grounded.

2. Faulty Capacitor.

1. Check the wiring and the compressor winding resistance.

2. Find the cause then replace Capacitor.

C. There is insufﬁ cient heating or

cooling.

1. There is a gas leak.

2. Liquid and gas line insulated together.

3. The room was probably very hot (cool) when you started the system.

1. Remove charge, repair, evacuate and recharge.

2. Insulate them separately.

3. Wait while unit has enough time to cool the room.

D. The compressor run

continuously.

1. Thermostat adjustment too low (in heating mode) or too high

(in cooling mode).

2. Faulty fan.

3. Refrigerant charge too low, leak.

4. Air or incondensables in refrigerant circuit.

1. Check Thermostat setting.

2. Check condenser air circulation.

3. Find leak, repair and recharge.

4. Remove charge, evacuate and recharge.

E. The compressor starts but

shuts down quickly.

1. Too much or too little refrigerant.

2. Faulty compressor.

3. Air or incondensables in refrigerant circuit.

4. Changeover valve damaged or blocked open (heat pump unit).

1. Remove charge, evacuate and recharge.

2. Determine the cause and replace compressor.

3. Remove charge, evacuate and recharge.

4. Replace it.

F. Clicking sound is heard from

the air conditioner.

In heating or cooling operation any plastic parts may expand or shrink due to

a sudden temperature change in this event, a clicking sound may occur.

In heating or cooling operation any plastic parts may expand

or shrink due to a sudden temperature change in this event,

a clicking sound may occur.

1-core cable 1x2.0mm

1-core cable 1x2.5mm

Indoor

Unit

Outdoor

Unit

Gas Line

Liquid Line

R-22/R-407C

For 18000-24000 Btu/h

Q(E)

Y/G

Q(E)

Power supply

1-Phase

220-240V~ (3-core cable 3x2.5mm

)

Power supply

1-Phase

220-240V~ (3-core cable 3x1.0mm

)

3-core sheild cable

OUTDOOR UNIT

INDOOR UNIT

DC Inverter R-410A

For 36000-60000 Btu/h

Power supply

1-Phase

220-240V~ (3-core cable 3x2.5mm

)

Power supply

3-Phase

380-415V~ (5-core cable 5x2.5mm

)

3-core sheild cable

DC Inverter R-410A

INDOOR UNIT

OUTDOOR UNIT

See technical speciﬁ cation

J354-EN.indd 3J354-EN.indd 3 4/25/07 5:03:12 PM4/25/07 5:03:12 PM

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York YOCC-YOHC 12-60 User Manual Page 3

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