York MHC-MHH User manual

035T80000-000
MODELS
MHC-MHH/BOC-BOH 07
MHC-MHH/BOC-BOH 09
MHC-MHH/BOC-BOH 12
MHC-MHH/BOC-BOH 18
MHC-MHH/BOC-BOH 25
Installation Manual
MINISPLIT
HIGHWALL
AIR CONDITIONER
Installation Manual
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2 HIGHWALL
Please read this installation manual
carefully before starting the installation.
It will tell you necessary information.
Quality POLICY
We will continuously strive to satisfy
our customers with consistent reliability
in product, service and support.
CONTENTS
Safety Precautions ......................................4
Part List.........................................................5
Preparation Before Installation ..................6
Installation Diagram ....................................8
Installation Procedure .................................9
Test Operation............................................13
Trouble Shooting Guide ............................14
Technical Specification .............................15
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HIGHWALL 3
REQUIRED TOOLS
1. Screw driver
2. Hexagonal wrench
3. Torque wrench
4. Spanner
5. Reamer
6. Hole core drill
7. Tape measure
8. Thermometer
9. Manifold Guage
10. Gas leak detector
11. Vaccum pump
12. Pipe clamp
13. Pipe Cutter
14. Flare Tool Set
15. Electrical Circuit tester
EXTENDED PARTS
1. Refrigerant Pipe
Models MHC-MHH/BOC-BOH
07-09 12 18-25
Liquid size 1/4 inch 1/4 inch 3/8 inch
Gas size 3/8 inch 1/2 inch 5/8 inch
2. Pipe Insulation Material (Polyethylene foam
9 mm thick)
3. Vinyl tape
4. Putty
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4 HIGHWALL
SAFETY PRECAUTIONS
•Please read this installation manual carefully before starting installation of the unit.
•This air conditioning system contains refrigerant under pressure, rotating parts and
electrical connection which may be dangerous and can cause injury. Installation
andmaintenanceofthisairconditioningsystemshouldonlybecarried out bytrained
and qualified personnel.
•After unpacking, please check the unit carefully for possible damage.
•Before undertaking any work on the unit, make sure that the power supply has
been disconnected.
CAUTIONS FOR INSTALLATION
Do not install in a place where flammable gas may
leak.
It may cause fire.
Do not store or unpack the unit in a wet area or expose
to rain or water.
It may cause the unit to short circuit and may result electric
shocks or fire.
Do not conduct installation in wet area or in the rain.
It is a high risk to cause the electrical shocks.
This system is designed for domestic or residential
use only.
If used in certain envionments, such as a manufacturing
workplace, the equipment may not function efficiently.
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HIGHWALL 5
PART LIST
Part No. Name of part
MHC-MHH/BOC-BOH 07, 09, 12 MHC-MHH/BOC-BOH 18, 25
Mounting Plate and Mounting Template
1
Indoor Unit
2
Drain Hose
*Included with indoor unit
3
Central mounting bracket
4*Not supplied
Screws and Anchor Set
5
Remote Control and Battaries Set
6
Installation and Owner’s manual
7
Quantity
X1
X1
X1
X1
X4
X1
X1
—TEMP—
MODE
+
—
˚C˚C
˚C
SETCLEAR
TIMER
+
—
—TEMP —
MODE
+
—
˚C˚C
˚C
SET CLEAR
TIMER
+
—
Installation Manual
Owner's Manual
Installation Manual
Owner's Manual
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6 HIGHWALL
PREPARATION BEFORE INSTALLATION
•Before doing any work, check the interior power supply cord and the main breaker capacity are sufficient and the
installation area is sufficient and complies with the requirements.
•Check that the power supply available agrees with nameplate voltage.
•Electrical work, wiring and cables must be performed in compliance with national and local wiring codes and
standard.
•Do not use the extension cables.In the case extended cables are needed, use the terminal block.
SELECTION OF THE LOCATION
•Select a place which provides the space around the units as shown in the diagram below.
Models MHC-MHH/BOC-BOH
07 09 12 18 25
A 60cm 60cm 60cm 60cm 60cm
B 70cm 70cm 70cm 70cm 70cm
C 60cm 60cm 60cm 60cm 60cm
D 10cm 10cm 10cm 10cm 10cm
Models MHC-MHH/BOC-BOH
07 09 12 18 25
A 20cm 20cm 20cm 20cm 20cm
B 60cm 60cm 60cm 60cm 60cm
C 40cm 40cm 40cm 40cm 40cm
D 20cm 20cm 20cm 20cm 20cm
Outdoor
Cautions
•Do not install in a place that cannot bear the weight of the unit.
Indoor
BO 07-12
BO 18
BO 25
497133.5 133.5
248
230 268
429
150 550 150
100100
64
64
234
315
287 2424 335
517
144 144
296
260 316
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HIGHWALL 7
Installation of the outdoor unit in a place exposed
regularly to a strong wind.
Installation of the indoor unit in a place where there
is an obstacle near the air inlet or outlet.
Installation of the indoor unit at too low a position
Installation of outdoor units too close or, blowing
discharged air into each other.
Installation of the indoor unit in direct sun light.
Installation in the unit in wrong direction.
INSTALLATION IN THE FOLLOWING PLACES MAY RESULT IN TROUBLE
10 cm
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8 HIGHWALL
INSTALLATION DIAGRAM
Auto louver (vertical)
Manual louver (horizontal)
10 cm or more
20 cm or more
20 cm or more
60 cm or more
Vinyl tape
Gas side piping
Liquid side piping
Additional drain hose
Connecting cable
Vinyl tape
Apply after carrying out a drainage
test.
* To carry out the drainage test,
remove the air filters and pour
water into the heat exchanger.
60 cm or more
Installation plate
Remove the cover plate screw
to have access to the terminal
board.
70 cm or more
60 cm or more
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HIGHWALL 9
INSTALLATION
PROCEDURE
INDOOR UNIT
■Fixing
•Place the installation guide pattern on the designated
installation place and mark the hole position.
•Drill a hole and mount installation plate.
•After determining the pipe
hole position. Drill the hole
at a slight downward slant
towards the outdoor side.
Note : When installing
the refrigerant pipes from
others side. A hole must
be place to allow fall
towards the outdoor unit.
•Make ø5mm.4-6 holes, in the wall at the four corners
of mouting plate (bracket) then insert appropriate
mouting devices.
•Install the mounting plate using 4-6 pieces of mounting
screw securely at four corners and tighten the screw
completely.Do not over tighten the screws and deform
the back plate.
Caution
•Be careful when handling the sharp edge of the
mounting plate.
■Wiring
•This indoor unit is ready for connection to the outdoor
unit.
Cautions
•Never modify the unit by removing any of the safety
guards or by bypassing any of the safety interlock
swithces.
•Connect the interconnecting cable correctly and
connect the connecting cable to terminal as identified
with their respective marking.
•Do not damage the conductor core or inner insulation
of power supply cables and do not deform or crush
the cables.
■Piping
The auxiliary piping can be connected in the diections
shown the above diagram.To connect in the D, E and F
direction, pipes will need to be extended.
Cautions
•Bend pipes carefully to avoid flattening or obstructing
them if the pipes are bent incorrectly, the indoor unit
may be unstable on the wall.
•Carefully arrange pipes so that pipes do not stick out
of the rear plate of the indoor unit.
Outdoor
Indoor
ø70 mm
ARight
BRight
CRight FLeft
ERear Bottom
DRight
5
..............
..............
..............
..........
........
...
..............
..............
..............
............
........
......
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■Drain hose
• Drain hose is flexible and can be routed to suit various
pipingarrangements.The drain line must include elbow
trap (U bend).Connect a plastic condensate pipe with
an internal diameter of 12 mm.
Note: Do not put the drain hose end into water.
• The drain hose can be connected to the left or the
right side.
For left and left rear piping
For left and left rear piping
Verification of condensate water drainage:
Fill the drain pan with water and observe evacuation.
■Indoor Unit Fixing
• Thread the indoor unit piping and cable through the
hole.
• Hang the top of the unit onto the upper ridge of them
in mounting plate.
• Make sure that the unit is correctly hung in place by
sliding it to the left, then to the right.
• Press the bottom left and bottom right hand corners of
the unit against the mounting plate until the fixing
prongs click into place in the retainers provided to that
effect.
(MHC-MHH/BOC-BOH 07-25)
• For the model MHC-MHH/BOC-BOH 18 and 25 and
install the central mounting bracket as shown in the
below diagram.
(MHC-MHH/BOC-BOH 18 and 25)
(MHC-MHH/BOC-BOH 18 and 25)
Note:The condensate evacuation line should be taped to
the refrigerant lines with vinyl tape.
Drain hose
Drain cap
Drain hose
Drain cap
Drainage line
Interconnection cable
Condensate
drainage line
a
Vinyl tape
a) Access plate for the
condensate drainage
pump detection
(condensate pump is
available as an
accessory).
Mounting Plate
Central Mounting Bracket
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HIGHWALL 11
- Evacuate the piping.This operation, which should last
at least 15 minutes 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 needle moves,
there is a leak in the system. Make the necessary
adjustments or repairs and repeat this procedure until
the needle no longer moves.
- Open the service valves and top up the refrigerant
charge if necessary.
Thisunit is shipped complete with a chargeof R22 refrigerant
that will be sufficient for an interconnecting piping length of
5 meters.
Installation
Minimum thickness 6 mm
Low pressure
Gas valve
Liquid valve
Pressure tap
OUTDOOR UNIT
■Fixing and Piping
• Piping must be performed by qualified personnel
according to good refrigeration systems practices.
• Piping materials and insulation materials must be of
refrigerant quality.
• Select the pipe diameters according to the size of unit
and cut the pipe to design length by using pipe cutter.
• Install the flare nuts and flare the end of the pipes.
• Check that no foreign bodies are inside the piping.
• Align the central of the connecting pipes and tighten
the flare nut.
• Fix piping with pipe clamps and check that any pipe
vibrations cannot be transmitted to the building
structure.
Notes
• Connect the pipe correctly.
• Do not apply the excessive torque.
• Use an appropriate bending tool to form curves and
avoid over-tightening the refrigerant tubes.
• To prevent heat loss, the two lines must be insulated
separately.
■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 charge to be added per extra
metre of piping length when more than 7.5
meters.
■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 connectiong the refrigerant lines, follow the
procedures below (if pre-charged 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
boodies get inside the piping.
- Install the flare connectors and flare the ends of the
pipes.
Unit size 7 9 12 18 25
D (m) 10 12 15 15 22
L (m) 12 15 18 18 25
H (m) 710121220
MHC-MHH/BOC-BOH
Unit size 7 9 12 18 25
g/m 15 15 15 40 40
Outdoor Unit Indoor Unit
Gas Line
Liquid Line
R22
High pressure
Manifold
Heat pump
(discharge)
Cooling
(suction)
Heat pump
Liquid
Cooling
Heat pump
(discharge)
Heat pump
Liquid
Cooling
GASS
Cooling
(suction)
D
L
L
H
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12 HIGHWALL
■Vertical Discharge Condensing Unit
(H*DA, H*DB, H*RA)
The indoor unit and interconnecting wiring voltage is
220 volts. Where the outdoor unit requires a different
operating voltage such as 24 volts one of the following
solutions can be applied.
1. The coil of the relay switching the compressor and
reversing valves should be changed to a 220V coil.
2. A transformer should be installed to supply 24 volts
and a relay installed with a 220 volt coil to switch the
24voltsrequired bythe outdoor units.The transformer
should be energised at all times and not switched by
the start signal from the indoor unit. Switching the
transformer directly will cause electronic noise which
may cause malfunction of the electronics.
■Wiring
L N 1 2
For further detail on wiringof these units, see thediagramspasted
inside each unit.
Cautions
• Never modify the unit by removing any of the safety
guards or by bypassing any of the safety interlock
swithces.
• Connect the connecting cable correctly and connect
the connecting cable to terminal as identified with their
respective marks.
• Do not scratch the conductive core & inner insulator of
power supply cables and do not deform or smash on
the surface of cables.
■Electrical Connections
All electrical wiring and connections must comply with
local codes and standards. Power supply cord and
interconnection cord used must not be lighter than
Polychloroprene sheated cord (245 IEC 57 or H05RN-F).
Disconnecting device must have a contact separation
of at least 3 mm.
MHC 07-25 -Cooling Only
2
13
1
N
L2
N4
34
MHC 07-25 -Heat Pump
2
1
3
1
N
L2
N
4
34
For correct installation, a proper ground connection must be
made for unit.
Wiring sizes
Or as required to meet national and local codes.
Notes
• Terminals N and 1 (see diagrams above) correspond
to power supply to the indoor unit coming from the
outdoor unit.
• Compressor power supply is established by teminal 2.
• Power supply to the 4-way valve is established by
terminal 3.
• For further details on wiring of these units, see the
diagrams pasted inside each unit.
Indoor
Unit
Outdoor
Unit
Indoor
Unit
Outdoor
Unit
Power 220-240V/1Ph/50Hz
Supply 208-230V/1Ph/60Hz
Unit size 7 9 12 18 25
Power supply mm23x2.5 3x4
Interconnection Cooling mm23x2.5 + Ground
(Indoor/Outdoor) Heating mm24x2.5 + Ground
Fuse (slow-Blow) A 10 16 20
Indoor
Unit
Cooling Only Units
24V FROM OUTDOOR UNIT
Power Supply Power 220-240V/1Ph/50Hz
Supply 208-230V/1Ph/60Hz
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HIGHWALL 13
TEST OPERATION
CHECK THIS ITEM BEFORE START OPERATION
Outdoor
• Check the flare 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 firmly fixed.
• Check the connecting pipes are tighten securely.
• Check the pipe insulation.
• Check the drainage.
• Check the connection of the grounding wire.
PROTECTION MODES
Your air coditioner includes several automatic protection modes, which enables you to use it virtually at any time and
in any season, regardless of the outdoor temperature. Some of the protection modes are listed below:
Mode Operation Protection Controlled
conditions from remedy
Cooling Low outdoor Indoor coil Stop outdoor fan and
and Dry temperature freezing up Compressor when
approaching freezing
conditions.
Resumes operation
automatically.
High outdoor Outdoor coil Stops compressor when
temperature overheating approaching over heating
conditions.
Resumes operation
automatically.
Operating indicator blinks.
Heating Low outdoor Outdoor coil Reverses operation from
temperature ice build up heating to cooling for
short periods to de-ice
outdoor coil.
Operating indicator
blinks.
High indoor Indoor coil Stops outdoor fan and
or outdoor overheating compressor when
temperature approaching high indoor
coil temperature.
Resumes operation
automatically.
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14 HIGHWALL
Remedy
1. Wait for Power resume.
2.Replace the fuse or reset the
breaker.
3. Find the cause and fix 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.
1. Check the wiring and the
compressor winding resistance.
2.Find the cause then replace
Capacitor.
1.Remove charge, repair, evacuate
and recharge.
2.Insulate them separately.
3. Wait while unit has enough time to
cool the room.
1.Check Thermostat setting.
2.Check condenser air circulation.
3.Find leak, repair and recharge.
4.Remove charge, evacuate and
recharge.
1.Remove charge, evacuate and
recharge.
2.Determine the cause and replace
compressor.
3.Remove charge, evacuate and
recharge.
4.Replace it.
In heating or cooling operation any
plasticpartsmay expandor shrink due
toa sudden temperaturechange in this
event, a clicking sound may occur.
Problem
A. The air conditioner does not run.
B. The outdoor fan runs but the
compressor will not start.
C. There is insufficient heating or
cooling.
D. The compressor run
continuously.
E. The compressor starts but shuts
down quickly.
F. Clicking sound is heard from
the air conditioner.
TROUBLE SHOOTING GUIDE
Probable cause
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. Motor winding cut or grounded.
2. Faulty Capacitor.
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. 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. 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)
In heating or cooling operation any
plastic parts may expand or shrink
dueto a sudden temperaturechange
in this event, a clicking sound may
occur.
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HIGHWALL 15
Models Indoor Unit MHC-MHH
07 09 12 18 25
BOC-BOH
Outdoor Unit 07 09 12 18 25
Power Supply V/Ph/Hz 220-240/1/50
Ph 11111
Maximum Power Consumption kW 0.7 0.85 1.2 2 2.8
Running Current A 3.5 4.5 5.6 9.1 11.5
Fuse Size A 10 10 10 16 20
System Operation Control Wireless Remote Control with LCD Display
Compressor Type Rotary
Piping Diameter Suction 3/8" 3/8" 1/2" 5/8" 5/8"
Liquid 1/4" 1/4" 1/4" 3/8" 3/8"
H(mm) 290 290 290 315 356
Indoor W(mm) 799 799 799 1,019 1,019
Dimensions D(mm) 181 181 181 180 180
H(mm) 492 492 492 590 696
Outdoor W(mm) 764 764 764 820 850
D(mm) 230 230 230 280 287
Weights Indoor kg 11 11 11 18 18
Outdoor kg 34 36 38 59 65
TECHNICAL SPECIFICATION
INDOOR UNIT
CONDENSING UNIT
■BOC-BOH
Models
Power Supply
Power Consumption
Running Current
Compressor
Refrigerant Type
Air Flow
noise Level
Outdoor
Unit
V/Ph/Hz
Ph
kW
A
m3/h
dBa
BOC-BOH
07 09 12 18 25
220/240/1/50
11111
0.77 0.91 1.21 1.73 2.62
3.77 4.42 5.52 8.42 12.82
Rotary
R-22
1,220 1,220 1,220 3,310 3,310
50 50 51 57 57
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16 HIGHWALL
MOL-MOM
07 09 12 18 25
220/240/1/50
11111
0.77 0.93 1.34 1.77 2.65
3.52 4.32 6.12 8.12 12.42
Rotary
R-407C
1,220 1,220 1,220 3,310 3,832
50 50 51 57 57
Models
Power Supply
Power Consumption
Running Current
Compressor
Refrigerant Type
Air Flow
noise Level
Outdoor
Unit
V/Ph/Hz
Ph
kW
A
m3/h
dBa
■R407C
H*DB
012 018 024 030 036 042 048 060 076
208/230-1-60 -
- 460-3-60 - 460-3-60
1 1 1 1 1/3 1 1/3 1/3 3
Reciprocating Scroll Recip
R-22
Models
Power Supply
Compressor
Refrigerant Type
Outdoor
Unit
V/Ph/Hz
Ph
■H*DB
H*DA
012 018 024 030 036 048 060 076
220-240/1/50 380/3/50
11113333
Reciprocating
R-22
Models
Power Supply
Compressor
Refrigerant Type
Outdoor
Unit
V/Ph/Hz
Ph
■H*DA
H*RA
018 024 030 036 048 060
220-240/1/50 380/3/50
11 11333
Reciprocating
R-22
208/230-1-60
11 1111
Reciprocating Scroll
R-22
Models
Power Supply
Compressor
Refrigerant Type
Power Supply
Compressor
Refrigerant Type
Outdoor
Unit
V/Ph/Hz
Ph
V/Ph/Hz
Ph
■H*RA
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HIGHWALL 17
MMC-MMH
018 021 025 036 050
220-240/1/50 or 380-415/3/50
11 1 11
2x0.85 0.85x1.20 2x1.20 2x1.73 2x2.26
2x4.5 4.5x5.7 2x5.7 16.9 26.5
Rotary Recip
R-22
208-230/1/60
11 1 11
2x0.85 0.85x1.20 2x1.20 2x1.73 2x2.26
2x4.5 4.5x5.7 2x5.7 16.9 26.5
Rotary Recip
R-22
Models
Power Supply
Power Consumption
Running Current
Compressor
Refrigerant Type
Power Supply
Power Consumption
Running Current
Compressor
Refrigerant Type
Outdoor
Unit
V/Ph/Hz
Ph
kW
A
V/Ph/Hz
Ph
kW
A
■MMC-MMH
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HIGHWALL 19
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YORK®International Corporation
DE - COMMISSIONING DISMANTLING & DISPOSAL
This product contains refrigerant under pressure, rotating parts, and electrical connections which may be a
danger and cause injury!
All work must only be carried out by competent persons using suitable protective clothing and safety precautions.
Read the Manual Risk of electric shock Unit is remotely controlled and
may start without warning
1. Isolate all sources of electrical supply to the unit including any control system supplies switched by the unit. Ensure
thatallpoints of electricalandgas isolation aresecured in theOFFposition. The supplycablesand gas pipeworkmay
then be disconnected and removed. For points of connection refer to unit installation instructions.
2. Removeallrefrigerantfromeachsystemoftheunitintoasuitablecontainerusingarefrigerantreclaimorrecoveryunit.
This refrigerant may then be re-used, if appropriate, or returned to the manufacturer for disposal. Under No
circumstancesshouldrefrigerantbeventedto atmosphere.Whereappropriate,draintherefrigerantoilfromeach
system into a suitable container and dispose of according to local laws and regulations governing disposal of oily
wastes.
3. Packaged unit can generally be removed in one piece after disconnection as above. Any fixing down bolts should be
removed and then unit lifted from position using the points provided and equipment of adequate lifting capacity.
Reference MUST be made to the unit installation instructions for unit weight and correct methods of lifting. Note that
any residual or spilt refrigerant oil should be mopped up and disposed of as described above.
4. After removal from position the unit parts may be disposed of according to local laws and regulations.
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