Ln p q( e ) y/g y/g p q (e) l1 l2 l3 n, Ln 1 2(n), T 3 e l(1) n(1) – York YOCC-YOHC 12-60 User Manual
Page 3: Ln 1 2 3, T3 gnd +5v, Test operation, Troubleshooting guide
L
N
P
Q(
E
)
Y/G
Y/G
P
Q (E)
L1
L2
L3
N
XT1
A B C
1
N
AB
C
N
12
3
XT2
XT1
4
■
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 23
Chart 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 26
Chart 25
Chart 29
Chart 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 32
Chart 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
Y&G
1234
A B C N 1
2 3
XT1
XT2
5-core cable 5x2.5mm
2
3-core cable 3x1.5mm
2
OUTDOOR UNIT
INDOOR UNIT
POWER:
380V 3N~50Hz
5-core cable 5x2.5mm
2
1
N
L
N
1 2(N)
3-core cable 3x2.5mm
2
3-core cable 3x2.0mm
2
OUTDOOR UNIT
INDOOR UNIT
POWER:
220-240V~50Hz
XT1
XT3
LN
S
L
N 1
3
2
3-core cable 3x2.5mm
2
3-core cable 3x2.5mm
2
OUTDOOR UNIT
INDOOR UNIT
POWER:
220-240V~50Hz
3-core cable 5x2.5mm
2
1-core cable 1x2.0mm
2
OUTDOOR UNIT
INDOOR UNIT
POWER:
380V 3N~50Hz
5-core cable 5x2.5mm
2
1
N
L
N
1 2(N)
4
3
3-core cable 3x2.5mm
2
3-core cable 3x2.0mm
2
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
T3
E
XT1
T 3 E
L(1)
N(1)
XT4
Y&G
123
4
5
6
Y&G
XT1
T3
E
XT2
L
N
1
2
3
3-core cable 3x2.5mm
2
3-core cable 3x2.5mm
2
OUTDOOR UNIT
INDOOR UNIT
POWER:
220-240V~50Hz
1-core sheild wire 1x0.5mm
2
XT2
T3
E
XT1
T 3 E
L(1)
N(1)
XT4
Y&G
123
4
5
6
Y&G
XT1
T3
E
XT2
L
N
1
2
3
3-core cable 3x2.5mm
2
3-core cable 3x2.5mm
2
OUTDOOR UNIT
INDOOR UNIT
POWER:
220-240V~50Hz
1-core sheild wire 1x0.5mm
2
3-core cable 3x2.0mm
2
3-core cable 3x2.5mm
2
3-core cable 3x2.5mm
2
OUTDOOR UNIT
INDOOR UNIT
POWER:
220-240V~50Hz
L
N
1
3
2
LN
1
3
2
XT3
XT1
XT2
XT1
T3 GND +5V
AB
C
N
Y&G
XT4
12
3
4
5
6
Y&G
A B C N 1
XT1
XT2
T3 GND +5V
2 3
(4)
5
XT2
XT1
T3 GND +5V
AB
C
N
Y&G
XT4
12
3
4
5
6
Y&G
A B C N 1
XT1
XT2
T3 GND +5V
2 3
(4)
5
Chart 30
30000~36000 Btu/h (1 PHASE)
Air Conditioner Link-circuit (For R-407C, Cooling & Heating)
3
1
2
L
N
3
1 2
L N
XT2
XT1
Y&G
Y&G
XT1
XT2
T3
E
T3
E
3-core cable 3x2.5mm
2
3-core cable 3x2.5mm
2
OUTDOOR UNIT
INDOOR UNIT
POWER:
220-240V~50Hz
1-core sheild wire 1x0.5mm
2
3-core cable 3x2.0mm
2
5-core cable 3x2.5mm
2
5-core cable 3x2.5mm
2
OUTDOOR UNIT
INDOOR UNIT
POWER:
380V~50Hz
2-core sheild wire 1x0.5mm
2
4-core cable 3x2.0mm
2
5-core cable 3x2.5mm
2
5-core cable 3x2.5mm
2
OUTDOOR UNIT
INDOOR UNIT
POWER:
380V~50Hz
2-core sheild wire 1x0.5mm
2
4-core cable 3x2.0mm
2
Problem
Probable cause
Remedy
A.
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
2
1-core cable 1x2.5mm
2
Indoor
Unit
Outdoor
Unit
Gas Line
Liquid Line
R-22/R-407C
For 18000-24000 Btu/h
L
N
P
Q(
E
)
Y/G
Y/G
L
N
X
Y
P
Q
(E)
Power supply
1-Phase
220-240V~ (3-core cable 3x2.5mm
2
)
Power supply
1-Phase
220-240V~ (3-core cable 3x1.0mm
2
)
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
2
)
Power supply
3-Phase
380-415V~ (5-core cable 5x2.5mm
2
)
3-core sheild cable
DC Inverter R-410A
INDOOR UNIT
OUTDOOR UNIT
See technical specifi cation
J354-EN.indd 3
J354-EN.indd 3
4/25/07 5:03:12 PM
4/25/07 5:03:12 PM