Brivis
Inverter Multi-Head
R410A
INSTALLATION MANUAL
PLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE
INSTALLING & USING THIS PRODUCT
Split System
1
CONTENTS
SAFETY PRECAUTIONS
Warning .............................................................................................................................................2
Caution ..............................................................................................................................................2
INSTALLATION INSTRUCTIONS
Selecting installation position .............................................................................................................4
Hi-Wall indoor unit .............................................................................................................................4
Ducted indoor unit ............................................................................................................................9
Outdoor unit installation ...................................................................................................................14
REFRIGERANT PIPE CONNECTION
Refrigerant pipe connection ............................................................................................................15
Inside you will find many helpful hints on how to install, test and operate the Brivis system properly.
All illustrations and specifications in this manual are subject to change without notice.
Please read this manual carefully and retain for future reference
ELECTRICAL INSTALLATION
Electrical installation ........................................................................................................................16
COMMISSIONING AND TEST RUN
Commissioning ................................................................................................................................22
REFRIGERATION
Air purging with vacuum pump ........................................................................................................19
Electrical safety and leak test ..........................................................................................................21
Installation must be carried out by suitably authorised and qualified personnel.
This appliance must be installed in accordance with all local and national wiring regulations.
This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety.
Young children should be supervised to ensure that they do not play with the system.
Do not install this system in a wet room such as a bathroom or laundry.
CAUTION
Outdoor Hi-Wall Indoor Slim Ducted Indoor
MON2H053 MINHW020 MINSD020
MON3H076 MINHW026 MINSD026
MON4H078 MINHW035 MINSD035
MON5H105 MINHW052 MINSD052
MON5H136 MINHW070 MINSD070
Model Numbers
13.6kW Outdoor Unit available late 2014
SPECIFICATIONS
Technical data ...................................................................................................................................3
2
SAFETY PRECAUTIONS
WARNING
Please read the follow SAFETY PRECAUTIONS carefully before installation.
Electrical work must be installed by a licensed electrician. Be sure to use the correct wiring ratings
for power and communications wiring.
Incorrect or incomplete installation or failure to adhere to these instructions may cause harm or damage.
The seriousness is classified by the following indications.
This symbol indicates the possibility of death or serious injury.
The items to be followed are classified by the symbols:
Symbol denotes item that is PROHIBITED.
CAUTION
This symbol indicates the possibility of injury or damage to property.
WARNING
1) Only qualified personnel shall undertake the installation. If the installation is defective, it may cause water or
refrigerant leaks, electrical shock or fire.
2) Install strictly in accordance with these installation instructions. If installation is defective, it may cause water
or refrigerant leaks, electrical shock or fire.
3) Use the appropriate accessories/parts and specified items for installation. Otherwise, the equipment may fall,
leak refrigerant or water, or cause electrical shock or fire.
4) Install the equipment in a strong, firm location, able to withstand the unit’s operating weight. If the installation
location is insufficient or the installation is incomplete, the equipment may fall and cause injury.
,
5) For electrical work, follow all local and national wiring standards and regulations, and in accordance with the
installation instructions. An independent circuit must be used. If the electrical circuit capacity is insufficient or
defective, it may cause electrical shock or fire.
6) Use the specified cables sizes and connect tightly. Clamp the cable so that no external force can be acted on
the terminals. If the connection or fixing is inadequate, the connections may overheat and cause fire.
7) Wiring routing must be properly arranged so that control board cover is fixed properly. If the control board
is not properly fixed, it may cause the connections to overheat and cause fire or electrical shock.
8) When carrying out piping connection, take care not to let air or other contaminants enter the refrigeration
system. Use only clean, specified refrigerant, otherwise the system will operate at a lower capacity/efficiency,
or at abnormally high pressures causing risk of explosion or injury.
9) Do not modify the length of any power supply cords or use extension cords. Do not share the power
supply with other electrical appliances. Otherwise, it may cause fire or electrical shock.
CAUTION
1) This equipment must be suitably earthed and installed with an appropriate circuit breaker. Electrical shock may
occur if the grounding is inadequate.
2) Do not install the unit in an area where leakage of flammable gases may occur. If the refrigerant leaks and
is allowed to accumulate around the unit, it may cause fire.
3) Install the condensate drain piping as per the installation instructions. If the drainage is inadequate or
incomplete, it may leak into the space and cause damage.
5) Do not install or operate this system in a wet room such as a bathroom or laundry.
4) The appliance shall be installed in accordance with all local and national wiring regulations.
3
SPECIFICATIONS
MON2H053 MON3H076 MON4H078 MON5H105 MON5H136
Qty 2 3 4 5 5
V-Ph-Hz
Rated Capacity (Maximum) 5.3 (6.77) 7.6 (10.18) 7.7 (10.96) 10.4 (12.68) 13.6 (15.12)
Power Input 1.48 2.25 2.23 3.05 3.57
Running Current A 6.6 9.96 9.86 13.36 15.6
AEER W/W 3.48 3.27 3.35 3.33 3.71
2 2 2 2 2.5
Rated Capacity (Maximum) 5.8 (6.86) 8.1 (10.18) 8.4 (11.03) 11.6 (13.48) 14.5 (15.54)
Power Input 1.60 2.16 2.30 3.09 4.327
Running Current A 7.16 9.58 10.22 13.56 18.88
ACOP W/W 3.50 3.62 3.53 3.64 3.618
2.5 2.5 2.5 2.5 2.5
Type Twin-rotary Twin-rotary Twin-rotary Twin-rotary Twin-rotary
A 14.5 16.5 17.0 25.0 26.0
67 69 69 73 73
60 60 61 64 64
Net (W x D x H) mm 845 x 320 x 700 900 x 315 x 860 900 x 315 x 860 990 x 345 x 965 938 x 392 x 1369
Gross (W x D x H) mm 965 x 395 x 755 1043 x 395 x 915 1043 x 395 x 915 1120 x 435 x 1100 1095 x 495 x 1505
Net / Gross Weight kg 48 / 52 62 / 66 64 / 68 89 / 93 100 / 112
Refrigerant Type
Connection Size: Liquid Line 2x Ø6.35 3x Ø6.35 4x Ø6.35 5x Ø6.35 5x Ø6.35
Connection Size: Gas 2x Ø9.52 2x Ø9.52
1x Ø12.7
3x Ø9.52
1x Ø12.7
4x Ø9.52
1x Ø12.7
4x Ø9.52
1x Ø12.7
Maximum Total System Pipe Length 30 45 60 75 75
Pre-Charged Length 20 30 40 50 50
Maximum Length Per Indoor Unit 20 25 30 30 30
Maximum Vertical Separation
Outdoor Unit ABOVE Indoor Unit 10 10 10 10 10
Maximum Vertical Separation
Outdoor Unit BELOW Indoor Unit 15 15 15 15 15
Maximum Height Difference
Between Indoor Units 10 10 10 10 10
Cooling
Heating
MINHW020 MINHW026 MINHW035 MINHW052 MINHW070
V-Ph-Hz
Rated Capacity (Range) kW 2.0 (1.71 ~ 3.71) 2.6 (1.90 ~ 4.04) 3.5 (2.21 ~ 4.71) 5.2 (3.03 ~ 6.46) 7.0 (4.25 ~ 9.06)
Power Input W 24 24 24 60 72
Rated Current A 0.11 0.11 0.11 0.27 0.33
Rated Capacity (Range) kW 2.3 (1.78 ~ 3.79) 2.9 (1.97 ~ 4.20) 3.8 (2.25 ~ 4.80) 5.5 (3.13 ~ 6.68) 7.5 (3.93 ~ 8.38)
Input W 24 24 24 60 72
Rated Current A 0.11 0.11 0.11 0.27 0.33
L/s 147 / 128 / 97 147 / 128 / 97 175 / 150 / 120 278 / 222 / 195 389 / 361 / 292
dB(A) 41 / 35 / 25 41 / 35 / 25 45 / 40 / 32 46 / 39 / 32 52 / 48 / 38
Net (W x D x H) mm 750 x 198 x 280 835 x 198 x 280 835 x198 x 280 990 x 218 x 315 1186 x 258 x 340
Gross (W x D x H) mm 830 x 270 x 355 910 x 270 x 355 910 x 270 x 355 1065 x 300 x 400 1265 x 420 x 340
Net / Gross Weight Kg 8 / 10 9 / 11 9 / 11 12 / 14 18 / 23
Refrigeration Pipe Size: Liquid / Gas mm Ø6.35 / Ø9.52 Ø6.35 / Ø9.52 Ø6.35 / Ø9.52 Ø6.35 / Ø12.7 Ø9.52 + Ø12.7
Type
oC
MINSD020 MINSD026 MINSD035 MINSD052 MINSD070
V-Ph-Hz
Rated Capacity (Range) kW 2.0 (1.71 ~ 3.71) 2.6 (1.90 ~ 4.04) 3.5 (2.21 ~ 4.71) 5.2 (3.03 ~ 6.46) 7.0 (4.25 ~ 9.06)
Power Input W 30 40 50 80 100
Rated Current A 0.13 0.18 0.23 0.37 0.46
Rated Capacity (Range) kW 2.3 (1.78 ~ 3.79) 2.9 (1.97 ~ 4.20) 3.8 (2.25 ~ 4.80) 5.5 (3.13 ~ 6.68) 7.5 (3.93 ~ 8.38)
Input W 30 40 50 80 100
Rated Current A 0.13 0.18 0.23 0.37 0.46
L/s 167 / 150 / 128 167 / 150 / 128 200 / 167 / 150 222 / 170 / 145 389 / 333 / 303
Pa 40 40 40 70 70
dB(A) 36 / 33 / 30 36 / 33 / 30 39 / 36 / 34 42 / 39 / 37 45 / 41 / 38
Net (W x D x H) mm 700 x 635 x 210 700 x 635 x 210 700 x 635 x 210 920 x 635 x 210 920 x 635 x 270
Gross (W x D x H) mm 915 x 655 x 290 915 x 655 x 290 915 x 655 x 290 1135 x 655 x 290 1135 x 655 x 350
Net / Gross Weight kg 18 / 23 18 / 23 18 / 23 23 / 29 28 / 32
Refrigeration Pipe Size: Liquid / Gas mm Ø6.35 / Ø9.52 Ø6.35 / Ø9.52 Ø6.35 / Ø9.52 Ø6.35 / Ø12.7 Ø9.52 + Ø12.7
mm OD Ø25 OD Ø25 OD Ø25 OD Ø25 OD Ø25
Type
oC
E & OE
OUTDOOR UNIT
Maximum Number of Indoor Units
Power Supply 220~240-1-50
Heating
kW
Star Rating
Cooling
kW
Star Rating
Compressor
Maximum Input Current
Sound Power Level dB(A)
Sound Pressure @ 1m
Dimensions
R410A
Refrigerant Piping
mm
m
220~240-1-50
Cooling
Heating
Ambient
Operating Range
oC-15 ~ 50
-15 ~ 24
Airflow (Hi / Med / Lo)
Sound Pressure (Hi / Med / Lo) @1m
Dimensions
INDOOR UNIT - HIWALL
Power supply
INDOOR UNIT - DUCTED
Power supply 220~240-1-50
Cooling
Heating
Control Wireless Remote Control
Indoor Operating Range 17 ~ 30
Capacities tested in accordance with AS 3823.3, with 5m interconnecting length for all attached Indoor Units.
Condensate Drain Connection
Control Wired Manual Thermostat
Indoor Operating Range 17 ~ 30
Airflow (Hi / Med / Lo)
Maximum External Static Pressure (Hi)
Sound Pressure (Hi / Med / Lo) @1m
Dimensions
4
Selecting installation position
Read completely, then follow step by step.
Indoor unit
Do not expose the indoor unit to external heat or steam.
Select a position where there are no obstacles
in front or around the unit.
Make sure that the condensate drain and pipework can
be conveniently routed.
Do not install near doorways.
Ensure that the clearance to the left and the right
of the unit is more than 12cm.
Use a stud finder to locate studs for secure mounting and prevent damage to the wall.
The indoor unit should be installed on the wall at a height of 2.1 metres or more from the floor.
The indoor unit should be installed allowing a minimum clearance of 15cm from the ceiling above.
Any variations in pipe length may require adjustment to the refrigerant charge.
Install away from direct sunlight. The sun may fade the plastic cabinet and affect its appearance.
If unavoidable, adequate sunlight prevention should be taken into consideration.
Outdoor unit
If an awning is built over the outdoor unit to minimise
direct sunlight or rain exposure, ensure that the
air paths and heat radiation from the condenser is
uninhibited.
Ensure that the clearance to the back of the
unit is more than 30cm and left side is more
than 30cm. The front of the unit should
have more than 100cm of clearance and the
connection side (right side) should have more
than 60cm of clearance.
Do not place animals or plants in the path of the air inlet or outlet.
Take the unit’s operating weight into account and select a suitable position to minimise noise
and vibration both internally and externally.
Select a suitable position so that the air discharge and noise from the unit does not disturb neighbors.
If the outdoor unit is installed on a roof structure, ensure it is installed on a secure level base.
Ensure the roof structure and securing method are adequate for the unit location.
Consult local codes and regulations regarding roof mounting.
If the outdoor unit is installed on roof structures or external walls, this may result in
excessive noise and vibration, it may also be classed as a non serviceable installation, and void
Roof installation:
INSTALLATION INSTRUCTIONS
More than 30cm
More than 60cm
More than 30cm
More than 100cm
Fig.2
More than 210cm
More than 15cm
More than 12cm
More than 12cm
Fig.1
1. Hi-Wall type
the manufacturers warranty.
5
Accessories
INSTALLATION INSTRUCTIONS
Note: Excepting the above parts provided mentioned above, other parts required are field supplied/purchased.
Spirit level
Screwdrivers
Electric drill, Hole core drill (φ65mm)
Flaring tool set
Specified torque wrenches: 1.8kgf.m, 4.2kgf.m,
5.5kgf.m, 6.6kgf.m (depending on model)
Spanners
Allen key (4mm)
Leak detector
Tools required for installation:
Vacuum pump
Manifold gauges
User manual
Thermometer
Multimeter
Pipe cutter
Tape measure
Field supplied parts
Consult specifications
for the proper sizes.
6.35
9.52
9.52
12.7
15.9
62
Self-tapping Screw B ST2.9X10
Remote control
Installation Plate
Accessory Description
Self-tapping Screw A ST3.9X25
Seal
Drain Joint
Magnetic Tyroid
(Install on the interconnective cable between indoor
unit and outdoor unit after installation.)
Cord protection sheath
(For smaller cables, if the cord clamp cannot fasten the cord
please use this sheath to ensure adequate clamping.
Transfer connector (Pipe reducer -
indoor or outdoor unit, depending on model)
(NOTE: Pipe sizes differ from unit to unit.
To meet different pipe size requirement, depending on
the pipe sizes, the pipe reducer may be required to be
fitted to the outdoor unit connections.)
Packed with the
Connecting
pipe
Liquid side
Plastic Expansion Sheath
Number Qty/unit
Gas side
7Remote controller holder 1
1
5-8
(depending on model)
5-8
(depending on model)
1
1
Optional part
(one piece/one cable)
Optional part
(one piece/indoor unit)
Optional part
(1-5 pieces for outdoor
unit, depending on model)
1
(on some models)
1
5
4
9
11
12
10
8
3
2
1
Optional
parts
refrigerant
De-burring tool
This illustration is for explanation purposes only.
The actual style of indoor and outdoor unit may be
slightly different.
Copper refrigerant lines must be insulated independently
Use a stud finder to locate studs to prevent
unnecessary damage to the wall.
A minimum pipe run of 3 metres is required
to minimise vibration & excessive noise.
A, B and C directions should be free from
intrusion or obstruction.
CAUTION
INSTALLATION INSTRUCTIONS
6
CAUTION
One outdoor unit - With two indoor units
One outdoor unit - With three indoor units
One outdoor unit - With four indoor units
One outdoor unit - With five indoor units
Air fil ter
Air filte r
Remote
controller
Remote
controller
Air filter
Remote
controller
Remote
controller
Air filter
More than 15cm
Air filter
Remote
controller
More tha n
30cm
A
BC
More tha n 100cm
Air out
More than 60cm
More than
30cm
More than
60cm
Loop a
connective
cable
1
2
3
4
5
6
Fig.3
7
INSTALLATION INSTRUCTIONS
Fig.4
Fig.5
Correct orientation
of Installation Plate
Indoor unit installation (Hi-Wall type)
Note:
1. Fit the Installation Plate
1. Fit the installation plate horizontally on
a structural part of the wall with required
space around the installation plate.
or the like, drill 5mm diameter holes
in the wall. Insert anchor plugs for
the appropriate mounting screws.
3. Fit the installation plate on the wall
with five or eight type A screws.
Fit the Installation Plate and drill holes in the
wall according to the wall structure and indoor
unit dimensions and the corresponding
mounting points on the installation plate. The
Installation Plate may be slightly different
according to the different models of indoor
unit. See Fig.5 for example.
(Dimensions in mm unless otherwise stated)
150mm or more to ceiling
Indoor unit outline Installation plate
H
Right rear side
refrigerant
pipe hole φ65
Left rear side
refrigerant
pipe hole φ65
120mm or
more to wall
120mm or
more to wall
W
45
R
L
45
180
140
260
275
110
110
135
275
MINHW020 - 750x280
MINHW026/035 - 835x280
MINHW052 - 990x315
MINHW070 - 1186x343
Indoor Unit Dimensions
mm(WxH)
L (Left) R (Right)
Mounting dimensions
2. If the wall is made of brick, concrete
1. For the left-hand and right-hand piping,
remove the pipe cover from the side panel.
2. For the rear-right-hand and rear-left-hand
piping, install the piping as shown in Fig.10.
3. Fix the end of the refrigerant pipe. (Refer
to Tightening Connection in REFRIGERANT
PIPING CONNECTION)
Refrigerant pipe installation
2. When connecting an extension drain hose,
insulate the connecting part of extension
drain hose with a shield pipe (See Fig. 8),
do not let the drain hose droop or kink.
3. Condensate drain and refrigerant
pipe installation
1. Run the condensate drain hose sloping
downward. Do not install the drain hose
as illustrated in Fig.7.
Drainage
2. Drill pipework hole in the wall
1. Determine hole positions according to the
diagram detailed in Fig.5. Drill one (1) hole
(φ65mm) slanting slightly to outdoor side.
2. Always use wall hole conduit when
drilling metal grid, metal plate or the like.
Fig.8
Fig.7
Do not block water flow by a rise.
Do not put the end of
drain hose into water.
Wall
Indoor Outdoor
5-7mm
Fig.6
Right-hand piping
Left-hand piping
Rear-right piping
Rear-left piping
Fig.9 Fig.10
8
INSTALLATION INSTRUCTIONS
4. Piping and wrapping
Bundle the refrigerant pipe, connecting cable, and
condensate drain hose with tape securely. Fig 11
Condensate is drained away from the indoor
unit via a condensate tray. Do not put any foreign
objects in the tray as it may block the drain
and cause a water leak.
Indoor unit
Connecting
pipe
Pipe enclosure
Condensate tray
Wrapping
Connecting
cable
Drain hose
.
.
.
..
.
.
.
.
.
.
.
.
.
.
.
.
.
..
.
.
..
.
.
.
.
.
. .
.
Fig.11
Connect the indoor unit first, then the
outdoor unit.
Ensure the bundled pipework is retained
in the rear of the indoor unit.
Ensure that the condensate drain falls correctly
Insulate the refrigerant pipes individually.
Ensure that the condensate drain hose is at
the bottom of the bundle. If located at the
top of the bundle will cause the condensate
tray to overflow inside the unit.
Ensure that the power wiring is routed separately
to all other wiring.
Run the condensate drain hose sloped downward
ensure the condensate flows away effectively.
CAUTION
Fig.12
1. Pass the piping through the hole in the
wall.
2. Put the upper slot at the back of the
indoor unit on the upper hook of the
installation plate, move the indoor unit
from side to side to see that it is securely
hooked (see Fig.12).
3. Piping can be manipulated more easily by propping
the indoor unit out from the wall with a cushioning
material between the indoor unit and the wall.
Ensure this is removed after finishing the piping.
4. Push the lower part of the indoor unit onto
the wall, then move the indoor unit from side
to side, up and down to check it is securely
fastened on the installation plate.
4. Indoor unit installation
9
INSTALLATION INSTRUCTIONS
3. Ducted type
Installation precautions
1. Determine the access route to the installation position.
2. To minimise damage, if possible, move the unit to the installation position with packaging intact.
3. Ensure all wiring is strictly in accordance with relevant local and national standards. Ensure that
insulation is in accordance with the standards, in case installation is on a metal part of the building.
Indoor unit installation
Refrigerant
pipe
Supply air outlet
Air return box
View A
<500mm
Duct
>100mm >200mm
>250mm
<3m
<1000mm
4. Avoid installing this system in the following locations, it may cause a malfunction.
(if unavoidable, please contact Brivis):
A. There is mineral oil present (as in the oil of machinery).
B. Highly corrosive environments. (Near the coast)
C. Highly caustic environments or near sulfuric gas. (Near hot spring.)
D. Areas where the voltage may fluctuate greatly.
E. On a mobile apparatus, caravan, mobile home, boat, bus etc...
F. In a kitchen or laundry with an overly steamy environment.
G. There are strong electromagnetic waves present.
H. There are combustible gases or materials present.
I. Highly acid or alkaline environments.
J. Other especially corrosive or arduous environments.
Ensure sufficient room for installation and maintenance.
Ensure that the installation is of sufficient strength to withstand the weight of the unit.
Ensure that the air inlet and outlet are not impeded and are not affected by outside air
Position so that the unit can distribute air effectively throughout the room.
Ensure that refrigerant pipes and condensate drain are accessible.
Avoid direct radiation from any external heat sources.
Installation location
Air return box
Supply air
<500mm
View A
Function
Insulation pipe
Wired remote control
Large metal washers
Binding tape
Water outlet joint
Name Qty.No. Outline
1
2
3
4
5
6
7
8
2
1
8
Pipe joint thermal insulation
Indoor unit fixing
Binding insulation pipe
Indoor unit remote control
9
10
Gasket
Copper nut
1
1
1
2
Connecting pipe
Outdoor unit drainage
Condensate drain hose 1
Indoor unit drainage
Outdoor unit drainage
Alkaline batteries
Remote signal receiver subassembly
(2)
1
Accessories
Supply
Outlet
10
INSTALLATION INSTRUCTIONS
Locate the hanging rods in accordance with dimensional data as shown in Fig.40.
Fig.34
Fig.35
Fig.37
Fig.36
Installation of unit
Install φ10 (4 pieces) hanging screw bolt (Field Supplied)
Ensure that the hanging rods are at least φ10mm diameter.
Please inspect and verify that the mounting facilities are of sufficient strength to withstand the full operating weight of the unit.
Reinforce the structural elements as required.
Proceed with the connection of piping and wiring.
Determine the piping route to ensure shortest and most accessible route. Ensure wiring is correctly routed before hanging the unit.
Install the hang rods according to the different applications shown below:
Timber over the beam
(Blade shape
insertion)
(Slide insertion)
Install with insertion or embedding screw.
Wooden structure
New concrete bricks
Put a timber across the beams and install
the bolts.
Hanging screw bolts
Ceiling
Roof beam
Steel bar
(Pipe hanging
and embedding
screw bolt)
Concrete bricks
Install the hanging hook with expansible
bolt into the concrete.
Steel roof beam structre
Install the supporting angle steel.
Hanging screw bolt
Hanging bolts Supporting angl steele
Hang the unit
Fig.38
Hanging screw bolt
Nut (upside)
Hanging bracket
Nut (underside)
Washer (upside)
Washer (underside)
Install the hanging screw rod in the
unit hanging bracket. .
Hang the indoor unit and check
that it is level. .
Fasten the nut
Spirit level
Fig.39
Fasten and tighten the hanging rod nuts.
17
INSTALLATION INSTRUCTIONS
11
Unit and Supply air dimensions
Return air size
Bottom return air dimensional data
Position of hanging brackets
Fig.40
Electric control box
Electric control box
Air filter
Air filter
Hanging rod position and unit dimension detail
Hanging bracket
920 210 635 570 65 713 35 119 815 200 80 960 350
A B CD E F GH I J K L M
700 210 635 570 65 493 35 119 595 200 80 740 350
External dimensions Supply air outlet size
Return air outlet size
Hanging
bracket
MINSD020, 026, 035
MINSD052, 070
17
INSTALLATION INSTRUCTIONS
12
Return air spigot
Side rail
Sealing sponge
Bottom access panel
1. Remove the bottom access panel and return air spigot.
Remove the staples from the side rail.
2. Adhere the sealing sponge (supplied) as shown below.
Then fix the bottom access panel to the rear of the unit,
and fix the return air spigot to the bottom of the unit.
3. To install the filter, place it on an incline through the return
air spigot, and push up into place.
4. The configuration change is complete when the filter
fixing blocks are positioned in the relevant holes.
All the figures in this manual are for explanation purpose only. There may be slight differences depending on the
model purchased. Alway check the physical unit for actual detail.
How to convert from rear supply air to bottom return air
Fig.41
NOTE
13
INSTALLATION INSTRUCTIONS
1.5m~2m
Fig.44
Fig.45
Fig.46
CAUTION
Refer to the figures for correct installation
procedure.
Ensure that the condensate drain pipe and its
connections are properly insulated to prevent
condensation and water leaks.
Connect the pipe with appropriate adhesive
to ensure a proper fit with no leaks.
Do not put undue stress on the condensate fittings,
it may cause the pipe to break and leak.
The downward slope of the condensate drain pipe
should be at least 1:50, do not bend or let droop.
Condensate drain pipe length shall be less than
20m. Install pipe supports as required to prevent
the pipe from drooping and trapping condensate.
Slope downward at least 1:50
Supporting Unit
Fold
Bend
Slope downward
at least 1:50
As deep as possible (at least 10cm)
Installation accessories
Duct design - Low Static (40 - 70Pa)
This is a low static unit, ensure that the duct is
as short as possible to minimise static pressure.
Duct installation
Fix the ducts onto the spigots.
NOTE:
1.Do not let the indoor unit bear the weight of duct.
2.Allow adequate space for service and
maintenance.
3.In noise critical spaces like meeting rooms or
bedrooms, use acoustic duct and/or additional
insulation to minimise noise.
Acoustic duct and insulation are field supplied
Use a flexible duct connection on the supply and
return air spigots to isolated any vibration.
Support the ducts independently of the unit.
Condensate drain
14
Fixing the outdoor unit
Anchor the outdoor unit with
φ10 or φ8 bolts tightly. Ensure
the unit is level and secure.
Fig.52
Install the outdoor unit on a firm rigid base to
prevent minimise noise and vibration.
Position the unit so the condenser air discharge
is free of obstruction. If the unit is exposed to
strong prevailing winds, such as in coastal areas
ensure that the condenser air discharge is
positioned properly by placing the unit lengthwise
along the wall, or by using a wind deflector.
In especially windy areas, use an alternative
installation position to prevent influence from the
strong breeze. If installed on a wall or roof bracket,
ensure that the bracket is of sufficient strength to
withstand the operating weight of the unit.
For wall mounted applications, the wall should be
of solid brick, concrete or the similar construction.
Appropriate reinforcement may be required to
support the unit. The connection between the
bracket and wall, and bracket and the unit should
be firm, stable and reliable.
Ensure there are no obstructions to the air inlets
or outlets.
Strong
wind
Fig.51
Outdoor unit installation
Outdoor installation precaution
INSTALLATION INSTRUCTIONS
560 335
624 366
590 333
MON2H053 - 845x700x320
MON3H076 & MON4H078 - 900x860x315
MON5H105 - 990x965x345
Outdoor unit dimensions mm
(L1 x H x W1)
L2 (mm) W2 (mm)
Mounting dimensions
MON5H136 - 938x1369x392
600 376
Fit the seal to the drain joint, then insert the
drain joint into the base pan hole of outdoor unit.
o
Rotate the joint 90 to lock in place.
Connect the drain joint with a drain hose (field
supplied), and drain to waste. The drain is
required to drain the water produced by the unit
in heating mode, including defrost.
Outdoor drain joint installation
Seal
Drain joint
Base pan hole of
outdoor unit
Seal
Drain pipe
Refrigerant pipe connection
The primary cause of refrigerant leaks is
defective pipe flared connections.
Follow the correct flaring procedure as
detailed below:
A: Cut the pipes to length.
1. Only use new, clean, refrigerant grade
copper pipe.
2. Measure the distance between the indoor
and the outdoor unit.
3. Cut the pipes square and slightly longer
than the measured distance.
1. Pipe flaring
Fig.53
B: Burr removal
1. Remove all burrs completely from the cut
cross section of pipe.
2. Hold the end of the copper pipe down as
you remove the burrs. This will prevent
the burrs falling into the refrigerant pipe.
Pipe
Reamer/Deburrer
Point down
Fig.54
Fig.55
C: Put the flare nut on
Remove the flare nuts attached to indoor and
outdoor units. Put them on the pipe after
removing the burrs. Flare nuts cannot be put
on the pipe after the flares have been made.
Flare nut
Copper tube
Fig.56
15
REFRIGERANT PIPE CONNECTION
(1) (2)
NOTE: The drain joint is product specific.
Bar
Copper pipe
Clamp handle
Cone
Yoke
Handle
Bar
"A"
Fig.57
D: Flaring the pipe
Hold the copper pipe firmly in a die, in accordance
with the dimensions shown in the table below.
Outer diam.
(mm)
A(mm)
Max. Min.
6.35 1.3 0.7
9.52
1.6 1.0
12.7
1.8 1.0
12.7
1.8 1.0
90 Angled Uneven Burred
16
REFRIGERANT PIPE CONNECTION
Caution
Align the centrelines of the pipes.
Tighten the flare by hand at first, then
tighten to the torque setting as detailed
in the table below. Use two spanners as
shown in Fig. 59
Tightening flare connection
Excessive torque can break the flare nut.
Use only specified torque.
Fig.59
Pipe Flare nut Pipe
Fig.58
Electric safety regulations for installation
1. If there is a serious safety issue regarding the power supply, technicians should refuse to install the system,
and fully explain the issue to the client to gain a resolution.
2. Power supply voltage should be in the range of 90%~110% of rated voltage.
3. A circuit breaker and main power switch adequately sized to accommodate the maximum input current of
the unit should be installed in power circuit.
4. Ensure that the system is earthed properly.
7. An individual electrical circuit and single power outlet must be used for the unit. Do not share the electrical
5. Wiring shall be in accordance with the Electrical Connection Diagram located on the access panel of the
outdoor unit.
6. All wiring must comply with all local and national electrical standards and codes and be installed by
qualified and skilled electricians.
Electrical work
Outside
diameter Tightening
torque(N.cm) Additional tightening
torque(N.cm)
6.35
12.7
9.52
1500
(153kgf.cm) 1600
(163kgf.cm)
3500
(357kgf.cm)
3600
(367kgf.cm)
2500
(255kgf.cm)
2600
(265kgf.cm)
circuit with other electrical devices.
When selecting a 7.0kW indoor unit, it must be connected to
the “A” circuit on the outdoor unit to ensure the appropriate
pipe size for a unit of this size. See Fig. 60
Indoor Unit Capacity kW Liquid (mm/In) Gas (mm/In)
2.0 / 2.5 / 3.5
7.0
5.0
Selecting a 7.0kW Indoor Unit
Fig.60
Pipe sizes for all indoor units is as follows:
C (6.35 / 1/4)
6.35 / 1/4
6.35 / 1/4
6.35 / 1/4
9.53 / 3/8
12.70 / 1/2
15.88 / 5/8
C (9.53 / 3/8)
B (6.35 / 1/4)
B (9.53 / 3/8)
A (6.35 / 1/4)
A (12.70 / 5/8)
17
ELECTRICAL WORK
Fig.61
Connect the cable to the outdoor unit
1. Remove the electrical control board cover
from the outdoor unit by loosening the screw
as shown in Fig.61
2. Connect the electrical cables to the terminals
as identified with their respective matched
terminals on the terminal blocks of the indoor
and outdoor units.
3. Secure the cable onto the control board with
the cord clamp.
4. To prevent the ingress of water, form a loop
in the connecting cables as illustrated in the
installation diagram of the indoor and outdoor
units.
5. Isolate any exposed wires/cables with electrical
terminators. Arrange the wiring to ensure it
does not touch any electrical or metal parts.
Wiring connection
NOTE: Before performing any electrical
work, turn off the mains power to the system.
Connection Cable
10mm 40mm
CAUTION
Do not touch the capacitors even if you
have disconnected the power. A stored
electrical charge may be evident, causing
an electrical shock. For your safety, wait
at least 5 minutes after the power has
been turned off to start work on the system.
Power is supplied from the outdoor
unit. The indoor units are connected with
power and signal wires. Ensure they are
correctly connected, otherwise the system
may not run, or will run abnormally.
Fig.62
CAUTION
Be sure to connect the indoor units (A, B, C, D,
E) to the Active and Neutral terminals of the signal
wires (A, B, C, D, E) of outdoor unit as identified
with their respective matched terminals.
Incorrect/incomplete wiring connections may cause
the system to malfunction.
Minimum nominal cross-sectional area
of conductors:
Rated current of appliance
(A)
Nominal cross-sectional
2
area (mm)
>3 and <6
>6 and <10
>10 and <16
>16 and <25
0.75
1
1.5
2.5
Screw
Cover
Connective cable
of indoor unit and
outdoor unit
Connective cable
of indoor unit and
outdoor unit
Connective cable
of indoor unit and
outdoor unit
Connective cable
of indoor unit and
outdoor unit
Connective cable
of indoor unit and
outdoor unit
One-two One-three One-four
One-five
POWER
E
E
The cable size and the current rating of the
circuit breaker are determined by the maximum
current on the nameplate, located on the side
panel of the unit. Please refer to the nameplate
before selecting the cable, circuit breaker and/or
switch. Please refer to the above tables and
choose the appropriate cable size to suit the
electrical requirements of the system.
NOTE:
NOTE: Please refer to the following diagrams for the wiring connections for the various models.
ELECTRICAL WORK
18
One Outdoor - Two Indoor models:
One Outdoor - Three Indoor models:
Please run the main power cord through the lower line-outlet of the cord clamp.
POWER
LNL(A) L(B)
N(A) N(B)
S(A) S(B)
TO A TO B
L N S L N S
LNL(A)N(A)S(A)
POWER
TO A
L N S
L(C)N(C)S(C)
TO C
L N S
L(B)N(B)S(B)
TO B
L N S
One Outdoor - Four Indoor models:
LNL(A)N(A)S(A)
POWER
TO A
L N S
TO C
L N S
TO B
L N S
L(B) N(B) S(B) L(C) N(C) S(C) L(D) N(D) S(D)
TO D
L N S
One Outdoor - Five Indoor models:
LNL(A)N(A)S(A)
POWER
TO A
L N S
TO D
L N S
TO C
L N S
L(C) N(C) S(C) L(D) N(D) S(D)
TO E
L N S
L(B)
N(B)
S(B)
TO B
L N S
L(E) N(E) S(E)
1) An individual power circuit must be used for
this system. Wiring shall be conducted in
these installation instructions.
2) The screws which fasten the wiring within the
vibration in transportation. Please ensure that
sufficiently tightened. Loose connections may
to an electrical failure or malfunction.
3) Confirm the suitability of the power source.
4) Confirm that electrical capacity is sufficient
5) Ensure that the starting voltage is maintained
marked as marked on the name plate.
6) Confirm that the cable thickness is suitable
7) Always use an adequately sized circuit breaker.
8) The following issues may be caused by voltage
Vibration/chattering of contactors, which will damage the
malfunction of the system.
9)
Before accessing the electrical terminals,
CAUTION
CAUTION
CAUTION
CAUTION
accordance with the unit circuit diagram, and
electrical switchboard may come loose from
all electrical connections within the unit are
cause overheating at the terminals, leading
for the operating current of the system.
at more than 90 percent of the rated voltage
for the power source specification.
drop.
contact points, blown fuses breaking, overload and/or
disconnect all power from the system.
Compressor Stop time Minimum 3 minutes
Power
Voltage variance
Voltage drop
Voltage imbalance
Within +/- 10% of supply voltage
Within +/- 15% of supply voltage
Within +/- 3% of supply voltage
start/stop
supply
voltage
Compressor / Power Supply Information
19
Air and/or moisture in the refrigerant system can have undesirable effects as indicated below:
● Higher system operating pressures.
● Higher system operating current.
● Performance and efficiency loss
● Moisture in the refrigerant circuit may freeze and cause blockages in the system.
● Water may lead to corrosion of key components in the refrigeration system.
Therefore, the system components, indoor, outdoor and refrigerant pipe between the units must be
leak tested and evacuated thoroughly to remove any non-condensables and/or moisture from the system.
Air purging with vacuum pump
●Preparation:
Check that all piping (both liquid and gas side pipes) between the indoor and outdoor units
have been properly connected and all wiring has been completed. Remove the service valve
caps from both the gas and the liquid side on the outdoor unit. Note that both the liquid and
gas side service valves on the outdoor unit are to be kept closed at this stage.
REFRIGERATION
Air purging
Please refer to Page 8 of this manual for specific pipe length and height specifications.
The outdoor unit is charged for a nominal 10m pipe length for each indoor
unit up to the maximum no. of indoor units (2-Head Outdoor 20m, 3-Head Outdoor 30m, 4-Head
Outdoor 40m & 5-Head Outdoor 50m). The total system refrigerant charge must be adjusted
REMOVE Refrigerant
Less than 10m pipe length
More than 10m pipe length
System Refrigerant Adjustment - Calculated for each Indoor Unit
ADD Refrigerant
15g/m for Ø 6.35mm Liquid Line
15g/m for Ø 6.35mm Liquid Line
or
according to the table below:
Indoor
Unit 1 2.0 10 0 Ø 6.35 15 0
FIVE Indoor Units (2.0+2.0+2.6+3.5+7.0kW) - 5 Head Outdoor Unit pre-charged for 50m
Size
(kW)
Actual
Length
(m)
Pre-charged Pipe
Length Variance
(m)
Liquid Line
(mm)
Size
Indoor Unit
(g/m)
Charge Adjustment
System Charge
(g)
Adjustment
Unit
Unit 2 2.0 12 2 Ø 6.35 15 30
Unit 3 2.6 6 -4 Ø 6.35 15 -60
Unit 4 3.5 20 10 Ø 6.35 15 150
Unit 5 7.0 14 4 Ø 9.52 30 120
Total System Length 62 Total System Refrigerant Adjustment (g) 120
In this example, an additional 240g of refrigerant is required to be ADDED to the system
System charging
●
Example 1
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