Samsung | AM200FXWANR | Installation guide | Samsung AM200FXWANR Installation guide

Samsung AM200FXWANR Installation guide
DVM S WATER-GEO
AM✴✴✴FXWA Series
AM✴✴✴KXWA Series
Air Conditioner
installation manual
imagine the possibilities
Thank you for purchasing this Samsung product.
DB68-04066A-12
Contents
Before Installation
Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Preparing for installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Selecting installation location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Space requirement for installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Installing the product
Base construction and installation of the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Drain pipe installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Refrigerant pipe installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Electrical wiring work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Air tightness test and vacuum drying. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Pipe insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Refrigerant collection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Charging refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Basic segment display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Setting outdoor unit option switch and key function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Setting the MCU and Pipe Addresses (for HR Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Water pipe installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
External contact connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Explanation of optional functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Others
Things to check after completing the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Inspection and test operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Inspection and trial operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Automatic refrigerant amount checking function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Cooling water management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
For information on Samsung’s environmental commitments and product-specific regulatory obligations, e.g. REACH,
WEEE, Batteries, visit : samsung.com/uk/aboutsamsung/samsungelectronics/corporatecitizenship/data_corner.html
ENGLISH-2
Safety precautions
Hazards or unsafe practices that may result in severe personal injury or death.
CAUTION
Hazards or unsafe practices that may result in minor personal injury or property damage.
SEVERE WARNING SIGNS
Installation must be requested to a qualified installer.
fIf the user installs a product improperly on their own, it may cause water leakage, electric shock or fire.
Install the unit in a place where it is strong enough to hold the product weight.
fWhen installed in place where it is not strong enough to withhold the product weight, the unit could fall and cause injury.
Electric work must be done by qualified persons, complying the national wiring regulations and installed according to
the instruction stated in the installation manual with leased circuit.
fCapacity shortage on the leased circuit and improper installation may cause electric shock or fire.
Use specified wires to connect indoor and outdoor units, and make sure the wire is firmly fixed.
fImproper connection may cause fire.
ENGLISH-3
BEFORE INSTALLATION
WARNING
01
Before installing an air conditioner, please read this manual thoroughly to ensure that you know how to safely and efficiently
install a new appliance.
❋ DVM S WATER-GEO air conditioner uses R-410A refrigerant.
- When using R-410A, moisture or foreign substances may affect the capacity and reliability of the product. Safety
precautions must be taken when installing the refrigerant pipe.
- The designed maximum pressure of the system is 4.1MPa. Select appropriate material and thickness according to the
regulations.
- R-410A is a quasi-azeotrope of two refrigerants. Make sure to charge with liquid phase when filling refrigerant. (If you
charge vapor refrigerant, it may affect the capacity and reliability of the product as a result of a change in the blend of
the refrigerant.)
❋ You must connect the indoor units for R-410A refrigerant. When indoor units for R-22 refrigerant are connected, they
cannot operate normally.
❋ DVM S WATER-GEO air conditioner uses plate type heat exchanger, and extra concern must be taken regarding on
selecting the installation location since it requires water pipe installation.
❋ For product protection, it is recommended to adopt closed circuit cooling tower or indirect water pipe circuit structure for
DVM S WATER-GEO air conditioner.
Before the installation, read the ‘Severe warning signs’ and the ‘Caution signs’ thoroughly.
Manufacturer is not responsible for accidents due to incorrect installation. (Installer will be responsible for any service charges
that may occur.)
Product is irrelevant to any installation or performance problem of the cooling tower and water pipes.
Anti-freeze must be used when temperature of water inlet for heating is below 10°C or ground heat source is used.
Safety precautions
Neatly arrange the wires in the electrical parts to make sure that electrical cover is closed securely without any gaps.
fIf the cover is not properly closed, heat may be generate on the electrical terminal and cause electric shock or fire.
Make sure to use the provided or specified parts with the specified tools for installation.
fFailing to do so may cause product falling, water leakage, fire or electric shock.
In any case of refrigerant leakage, make sure to ventilate.
fIf the refrigerant gas comes in contact with fire, harmful gas will be generated.
fMake sure that the refrigerant gas does not leak after completing the installation. If the refrigerant gas of the indoor unit
leaks and comes into contact with the fan heater, space heater or stove, harmful gas will be generated.
Make sure to perform grounding work.
fDo not connect the ground wire to a gas pipe, water pipe, lightning rod or telephone grounding. Improper grounding
could cause electric shock.
Do not install the product in a place where it is or might be exposed to inflammable gas leakage.
fWhen the gas leaks and gets accumulated around the product, it may cause fire.
Installation work must be done according to the instruction in this installation manual.
fImproper installation may cause water leakage, electric shock or fire.
When inserting the power plug, make sure to insert it fully and check that power plug and a consent does not have any
dust, blockage or loosened part.
fIf there is dust, blockage or loosened part on a power plug or consent, it can cause electric shock or fire. Also, replace the
consent if it is loosened.
When installation is in progress, check the following before operating the product.
fMake sure pipes are properly connected without any leakage.
fService valve should remain open. If the compressor operates with service valve closed, compressor or other parts may
get damaged due to overpressure. Also, if there is leakage on the connection part, air inflow and other matter may make
the status even more overpressured, which can cause personal injury due to explosion.
Stop the compressor before disconnecting the refrigerant pipe for pump-down operation.
fIf you disconnect the refrigerant pipe while compressor is operating with service valve open, air inflow will cause
excessive pressure in the refrigerant cycle that could lead to explosion and personal injury.
Do not assemble the power cord on your own, use two cables together to extend the cable length or connect the power
to a multi consent connected with other products.
fBad connection, isolation and over voltage may cause fire or electric shock.
Cut-off the main power supply before indoor unit electrical installation.
fPotential risk or electric shock.
You may need to install an ELB (earth leakage breaker) depending on the installation location.
fNot installing an ELB (earth leakage breaker) may cause electric shock.
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. Children should be supervised to ensure that they do not
play with the appliance.
For use in Europe: This appliance can be used by children aged from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play
with the appliance. Cleaning and user maintenance shall not be made by children without supervision.
ENGLISH-4
CAUTION SIGNS
BEFORE INSTALLATION
ENGLISH-5
01
Perform the drainage/piping work securely according to the installation manual.
fIf not, water could drop from the unit and household goods could get wet and damaged.
Fasten a flare nut with a torque wrench as specified in this installation manual.
fWhen fastened too tight, a flare nut may break after a long period of time and cause refrigerant leakage.
Wear thick gloves during the installation process.
fIf not, personal injury may occur due to the air conditioner parts.
Do not install the outdoor unit in a place where animals could live.
fIf an animal get contact with the electric parts, damage or fire may occur. In addition ask the customer to maintain a
clean installation place around it.
After completing the installation run the trial operation. If no error occurs, explain to the customer how to use and clean
the air conditioner according to the user’s manual. In addition give the installation manual and the user’s manual to the
customer.
Before the installation, check if the product is in good shape.
fDo not install the product if there is any damage which occurred during shipment.
All the materials used to manufacture the product and packages are eco-friendly and they are recyclable.
Refrigerant used in this product must be added or disposed in an appropriate way by qualified personnel.
fAt the end of the life cycle, take it to a proper recycling or disposal center or return it to the dealer so that it can be
disposed correctly.
Preparing for installation
Outdoor unit classification
Classification
Small chassis
Large chassis
AM080/100/120FXWA✴
AM200FXWA✴/AM300KXWA✴
Appearance
Models
CAUTION
Packaging material disposition
• Safely store or dispose the packaging materials.
- Sharp metals such as nails or wooden material packaging that may break into pieces become a cause for
personal injury.
- Make sure to store or dispose the vinyl type packaging material to keep it out of reach of children. Children
may put them over their face, which is very dangerous since it may lead to suffocation.
ENGLISH-6
Outdoor unit combination
Premium energy efficiency type
Model name for combination
Number of individual outdoor units
AM080FXWANR
Combined outdoor unit
AM080FXWANR AM100FXWANR AM120FXWANR AM160FXWANR2 AM180FXWANR2 AM200FXWANR
1
1
1
1
AM100FXWANR
2
2
2
1
1
AM120FXWANR
1
1
AM200FXWANR
Rated capacity
1
Cooling (kW)
22.4
28.0
33.6
44.8
50.4
56.0
Heating (kW)
25.2
31.5
37.8
50.4
56.7
63.0
11.2
14.0
16.8
22.4
25.2
28.0
29.1
36.4
43.7
58.2
65.5
72.8
14
18
22
29
32
36
Total capacity of the
Minimum (kW)
connected indoor units
Maximum
(kW)
(Cooling)
Maximum number of connectable indoor
units
Model name for combination
Number of individual outdoor units
AM220FXWANR2 AM240FXWANR2 AM260FXWANR2 AM280FXWANR2 AM300FXWANR2 AM320FXWANR2
2
2
AM080FXWANR
Combined outdoor unit
AM100FXWANR
1
AM120FXWANR
1
3
2
2
1
1
2
2
1
2
1
AM200FXWANR
Rated capacity
1
1
1
1
Cooling (kW)
61.6
67.2
72.8
78.4
84.0
89.6
Heating (kW)
69.3
75.6
81.9
88.2
94.5
100.8
30.8
33.6
36.4
39.2
42.0
44.8
80.1
87.4
94.6
101.9
109.2
116.5
40
44
47
51
55
58
Total capacity of the
Minimum (kW)
connected indoor units
Maximum
(kW)
(Cooling)
Maximum number of connectable indoor
units
ENGLISH-7
BEFORE INSTALLATION
CAUTION
• Use the following table to determine the size and number of outdoor units needed to achieve the capacity
requirements.
01
fMake sure to use an indoor unit that is compatible with DVM S WATER-GEO.
fIndoor units can be connected within the range indicated in following table.
fIf the total capacity of the connected indoor units exceeds the indicated maximum capacity, cooling and heating capacity
of the indoor unit may decrease.
fTotal capacity of the connected indoor units can be allowed from 50% to 130% of the total outdoor unit capacity. 0.5 ×
Σ(Outdoor unit capacity) ≤ Total capacity of the connected indoor units ≤ 1.3 × Σ(Outdoor unit capacity)
❋ You can connect maximum 64 indoor units to the outdoor unit. Maximum quantity of connectable indoor unit is set to 64
since outdoor unit only support up to 64 communication address. Indoor unit address can be assigned from 0~63. If the
indoor unit address was assigned from 64~79, E201 error will occur.
❋ Maximum 32 Wall-mount type indoor units with EEV (AM✴✴✴✴NQDEH✴, AM✴✴✴JNV✴) can be connected.
❋ Do not install 1st-generation MCU and 2nd-generation MCU together.
- 1st-generation MCU: MCU-S✴NEE✴N
- 2nd-generation MCU: MCU-S✴NEK2N, MCU-S4NEK3N, MCU-S1NEK1N
Preparing for installation
Model name for combination
AM340FXWANR2 AM360FXWANR2 AM380FXWANR2 AM400FXWANR2 AM420FXWANR2
Number of individual outdoor units
AM080FXWANR
3
AM100FXWANR
AM120FXWANR
AM200FXWANR
1
2
1
Cooling (kW)
95.2
100.8
Heating (kW)
107.1
113.4
47.6
50.4
123.8
62
Combined outdoor unit
Rated capacity
Total capacity of the
Minimum (kW)
connected indoor units
Maximum
(kW)
(Cooling)
Maximum number of connectable indoor
units
Model name for combination
Number of individual outdoor units
Rated capacity
3
1
2
3
1
2
1
1
1
106.4
112.0
117.6
119.7
126.0
132.3
53.2
56.0
58.8
131.0
138.3
145.6
152.9
64
64
64
64
1
AM440FXWANR2 AM480FXWANR2 AM500FXWANR2 AM520FXWANR2 AM600FXWANR2
3
AM080FXWANR
Combined outdoor unit
3
2
3
3
3
3
1
AM100FXWANR
1
AM120FXWANR
2
AM200FXWANR
1
2
2
2
3
Cooling (kW)
123.2
134.4
140.0
145.6
168.0
Heating (kW)
138.6
151.2
157.5
163.8
189.0
61.6
67.2
70.0
72.8
84.0
160.2
174.7
182.0
189.3
218.4
64
64
64
64
64
Total capacity of the
Minimum (kW)
connected indoor units
Maximum (kW)
(Cooling)
Maximum number of connectable indoor
units
1
Premium compact type
Model name for combination
Number of individual outdoor units
AM300KXWANR AM380KXWANR1 AM400KXWANR1 AM420KXWANR1 AM460KXWANR1
1
2
2
2
1
AM080FXWANR
3
2
1
AM100FXWANR
1
Combined outdoor unit AM120FXWANR
AM200FXWANR
Rated capacity
AM300KXWANR
1
1
1
1
1
Cooling (kW)
84.0
106.4
112.0
117.6
128.8
Heating (kW)
94.5
119.7
126.0
132.3
144.9
42.0
53.2
56.0
58.8
64.4
109.2
138.3
145.6
152.9
188.4
55
64
64
64
64
Total capacity of the Minimum (kW)
connected indoor
Maximum (kW)
units
Maximum number of connectable indoor
units
ENGLISH-8
Model name for combination
AM480KXWANR1 AM500KXWANR1 AM520KXWANR1 AM540KXWANR1 AM580KXWANR1
Number of individual outdoor units
3
AM080FXWANR
1
AM100FXWANR
1
2
3
1
1
2
01
1
AM200FXWANR
1
1
1
1
1
1
Cooling (kW)
134.4
140.0
145.6
151.2
162.4
151.2
157.5
163.8
170.1
182.7
67.2
70.0
72.8
75.6
81.2
174.7
182.0
189.3
221.1
237.5
64
64
64
64
64
Model name for combination
Number of individual outdoor units
AM600KXWANR1 AM620KXWANR1 AM680KXWANR1 AM700KXWANR1 AM800KXWANR1 AM900KXWANR1
2
3
3
3
3
3
1
AM080FXWANR
1
AM100FXWANR
1
Combined outdoor unit AM120FXWANR
1
AM200FXWANR
1
AM300KXWANR
2
1
2
2
2
3
Cooling (kW)
168.0
173.6
190.4
196.0
224.0
252.0
Heating (kW)
189.0
195.3
214.2
220.5
252.0
283.5
84.0
86.8
95.2
98.0
112.0
126.0
218.4
225.7
247.5
254.8
291.2
327.6
64
64
64
64
64
64
Total capacity of the Minimum (kW)
connected indoor
Maximum (kW)
units
Maximum number of connectable indoor
units
ENGLISH-9
BEFORE INSTALLATION
AM300KXWANR
Heating (kW)
Total capacity of the Minimum (kW)
connected indoor
Maximum (kW)
units
Maximum number of connectable indoor
units
Rated capacity
3
1
Combined outdoor unit AM120FXWANR
Rated capacity
3
Preparing for installation
Moving the outdoor unit
fSelect the moving path in advance.
fBe sure that moving path can support weight of the outdoor unit.
fDo not slant the product more than 30˚ when carrying it. (Do not lay the product down in sideways.)
fSurface of the heat exchanger is sharp. Be careful not to get injured while moving the product.
• You must use certain part of the product when moving the product.
CAUTION
When moving with a crane
fFasten the wire rope as shown in the figure.
fTo protect damage or scratches, insert a piece of cloth between the
outdoor unit and the wire rope.
Wire rope
Protection
cloth
Spreader bar
Wooden
pallet
When moving with a forklift
fCarefully insert the forklift forks into the forklift holes at the bottom of
the outdoor unit.
fBe careful with the forklift from damaging the product.
Forklift
When moving the product without wooden pallet and the crane is not available for use
fConnect a wire rope to the outdoor unit as you would move it with a
crane.
fHang the wire rope to the forklift fork to move the outdoor unit.
Forklift
Wire rope
Spreader
bar
ENGLISH-10
Selecting installation location
Decide the installation location regarding the following condition and obtain user’s approval.
Standard installation condition
fChoose a place with ventilation duct or opening to cool down the heat generated from the product and maintain the
surrounding temperature within 0~40°C and the humidity below 80%.
fChoose a place where structure can bear the weight and vibration of the outdoor unit.
fChoose a flat place that rainwater does not settle or leak.
fChoose a well ventilated place with sufficient space for repair and other services.
fChoose a place where you can easily connect the refrigerant pipes between indoor and outdoor units within allowable
distance.
fThis product is not salt tolerant, therefore do not install it near the sea or hot springs where outdoor unit may corrode.
CAUTION
• R-410A refrigerant is a safe, nontoxic and nonflammable refrigerant. However, if the place holds any concerns for
exceeding dangerous level of refrigerant concentration in case of refrigerant leakage, extra ventilation system is
required.
• Do not install the product in a place with corrosive gas such as sulfur oxides, ammonia gas, sulfurous gases.
Example: near washroom exhaust pipe, ventilation duct outlet, or surface near hot spring etc. (Copper pipes and
soldered parts may corrode and cause refrigerant leakage.)
• Install the product in a place without any risk of inflammable gas leakage.
• System air conditioner can be interfered with static noise when listening to AM radio. Therefore, select a location
where indoor unit can be installed while keeping optimal distance from the radio, computer, stereo equipment.
Furthermore, select a location where electrical wiring work is possible and put those wires in a individual
protection tubes and ground those protection tube.
- Especially, keep the unit at least 3 m away from the electrical equipment in an area with weak electromagnetic
waves and put the main power cable and communication cables in separately installed protection tubes, and
ground each protection tubes.
- Make sure that there is no equipment that generates electromagnetic waves. If not electromagnetic waves
may cause problem to the control systems which may lead to air conditioner malfunction. (Example: Remote
control sensor of the indoor unit may not be received well, due to ballast stabilizer of the lighting equipment.)
ENGLISH-11
BEFORE INSTALLATION
Installation location condition
01
fHeat source water containing foreign substances can cause condenser and pipe corrosion as well as water scale.
Therefore, make sure that water source meets the standard of cooling water quality for refrigerating and air conditioning
equipment. (Refer to 'Cooling water management' on page 103.)
fClosed circuit cooling tower must be used, but when open cooling tower is in use, select indirect water pipe installation
method which water pipe of the building is not directly connected to the water pipe of the product.
fStrainer (which needs to be purchased separately) must be installed to the ‘Water IN’ pipes of the heat source water. If
sand, dust or rust debris enter to water system, it may cause corrosion on metallic materials or blockage of the water heat
exchanger and damage the heat exchanger.
fDVM S WATER-GEO air conditioner is not designed to be installed outdoor. There are risk of burst and frozen water pipes
when the outdoor unit is installed outdoor, therefore it must be installed indoor (machine room etc.)
Space requirement for installation
Minimum space requirement for installation
fSecure minimum installation space as shown in the following figures, considering service area and path for people etc.
- If the installation space is narrow, installer or other worker may get injured during work and may also cause problem to
the product.
fIf the conditions does not meet the space requirement in this manual, please contact qualified installation agent.
Single installation
When the water pipe passes through top of the product
B
Outdoor unit
500
300
(Unit : mm)
Service space
Front side
20
350
A
100
100
C
1000
Space for installing water
pipe
Anti-vibration pad
<Front view>
<Top view>
When the water pipe passes through back of the product
B
500
100
(Unit : mm)
Outdoor unit
Service space
Front side
300
350
A
Anti-vibration pad
300
<Front view>
<Top view>
ENGLISH-12
100
C
1000
Space for installing water
pipe
Module or continuous installation
350
A
C
Service space
Front side
100
350
A
BEFORE INSTALLATION
Service space
Front side
01
Outdoor unit
Outdoor unit
20
B
300
(Unit : mm)
100
<Top view>
Model name of outdoor unit
A
B
C
AM080/100/120FXWA✴✴
770
545
600
AM200FXWA✴✴/AM300KXWA✴✴
1100
545
600
CAUTION
• If the outdoor unit is needed to be installed close to the walls unavoidably, prevent the vibration from being
transferred to the walls with cushioning materials etc.
Double installation
100
1000
100
(Unit : mm)
100
1000
100
H beam support
D
Service space
<Front view>
fFor the double installation, service space is required for the front, rear, and sides of the product. For the size of the service
space, refer to the service space size of single, module or continuous installation.
fClear enough space for D (space between outdoor units), so that water pipes connected to outdoor units does not block
the front side of the outdoor units next to it.
ENGLISH-13
Accessories
Accessories
fYou must keep following accessories until the installation is finished.
fHand over the installation manual to the customer after finishing the installation.
Name
Installation manual
Installation check card
Packing socket
Quantity
1
1
1
Image
❋ Models with packing socket : AM080,100,120FXWA✴✴, AM300KXWA✴✴
❋ Socket can be different depending on the model (Page 20, 23)
Optional accessories
fFollowing optional accessories are needed for connecting pipes between the indoor and outdoor units.
Classification
Y-Joint
Y-Joint (Only H/R)
Model Name
Specification
MXJ-YA1509M
15.0 kW and below
MXJ-YA2512M
Over 15.0 kW~40.0 kW and below
MXJ-YA2812M
Over 40.0 kW~45.0 kW and below
MXJ-YA2815M
Over 45.0 kW~70.3 kW and below
MXJ-YA3419M
Over 70.3 kW~98.4 kW and below
MXJ-YA4119M
Over 98.4 kW~135.2 kW and below
MXJ-YA4422M
Over 135.2 kW
MXJ-YA1500M
22.4 kW and below
MXJ-YA2500M
Over 22.4 kW~70.3 kW and below
MXJ-YA3100M
Over 70.3 kW~135.2 kW and below
MXJ-YA3800M
135.2 kW and below
MXJ-HA2512M
45.0 kW and below (for 4 rooms)
MXJ-HA3115M
70.3 kW and below (for 8 rooms)
MXJ-HA3819M
Over 70.3 kW (for 8 rooms)
Y-Joint
- Outdoor unit
MXJ-TA3419M
134.4 kW and below
MXJ-TA4122M
140.0 kW and Over
Y-Joint (Only H/R)
- Outdoor unit
MXJ-TA3100M
134.4 kW and below
MXJ-TA3800M
140.0 kW and Over
Distribution header
❋ If you use an indoor unit with no internal EEV(Electric Expansion Valve), you will need an EEV kit.
❋ Only use the genuine accessories listed in above table and do not use imitated accessories.
❋ Recommended specification of the strainer
Work pressure
1.96 MPa
Water pipe connection
AM080/100/120/200✴
AM300✴
PT 1-1/4
(Internal thread)
PT 2
(Internal thread)
ENGLISH-14
Mesh size
Material(strainer/Mesh)
50 Mesh
AISI316/SUS304
Base construction and installation of the outdoor unit
WARNING
• Make sure to remove the wooden pallet before installing the outdoor unit. If you do not remove the wooden
pallet, there is risk of fire during welding the pipes. If the outdoor unit is installed with wooden pallet on, and
it was used for long period time, wooden palette may break and cause electrical hazard or high pressure may
damage the pipes.
ENGLISH-15
INSTALLING THE PRODUCT
1. Make sure that the height of the base ground is 150 mm or higher to protect the outdoor unit from rain water or other
external conditions. Also, install a draining pit around the base ground and connect the drain pipe to the drainage.
2. Considering the vibration and weight of the outdoor unit, strength of the base ground must be strong to prevent noise
and the top surface of it should be flat.
3. Base ground should be 1.5 times larger than the bottom of the outdoor unit.
4. Outdoor unit must be fixed firmly so that it can withstand the wind speed of 30 m/s. If you cannot fix the outdoor unit on
the base ground, fix it by side or use extra structure.
5. In heating operation, defrost water may form so you must really care about the drainage and waterproofing the floor. To
prevent defrost water from stagnating or freezing, construct a drainage with over 1/50 slope. (Ice may form on the floor
in winter time.)
6. It is necessary to add wire mesh or steel bar during concrete construction for the base ground to prevent damages or
cracks.
7. When installing multiple outdoor units at the same place, construct a H beam or an anti-vibration frame on the base
ground to install the outdoor unit.
8. After installing a H beam or an anti-vibration frame, apply corrosion protection and other necessary coating.
9. When concrete construction for outdoor unit installation is completed, install an anti-vibration pad (t=20 mm or more) or
an anti-vibration frame to prevent vibration of the outdoor unit from transferring to the base ground.
10. Place the outdoor unit on a H beam or an anti-vibration frame and fix it with the bolt, nut and washer. (The bearing force
has to be over 3.5 kN)
02
❋ Fix an outdoor unit firmly on the base ground with anchor bolts.
❋ Manufacturer is not responsible for the damage occurred by not following the installation standards.
Base construction and installation of the outdoor unit
Foundation
Draining Ditch
Over 150 mm
<When installing on the ground>
Outdoor unit installation
Foundation (or H beam
or anti-vibration frame)
Outdoor unit
Anchor bolt
Base ground
20 mm
Anti-vibration pad
Insertion
depth
50 mm or
more
Nut, Spring washer
A
Foundation (or H beam or antivibration frame)
Over A + 10~20 mm
Fixing the outdoor unit
A
B
54
C
D
54
Hole on outdoor unit for fixing anchor bolt (4 - Ø12)
Foundation (or H beam or anti-vibration frame)
(Unit : mm)
Classification
Small type
Large type
Models
AM080/100/120FXWA✴✴
AM200FXWA✴✴/AM300KXWA✴✴
A
770
1100
B
656
995
C
523
515
D
550
550
❋ For adding the anti-vibration frame on the base ground, the specification for the fixing hole depends on the specification
of the anti-vibration frame.
ENGLISH-16
Drain pipe installation
Installing the drain pipe
fAttach the drain pipe to the drain socket (PT1/2) located on the bottom of the product.
02
INSTALLING THE PRODUCT
Drain socket (PT 1/2)
Single installation
Outdoor unit
Open to air
Drain socket
Slope over 1/50
Module installation
Outdoor unit
Outdoor unit
Open to air
Drain socket
Slope over 1/50
fDo not install trap and ensure the slope of the drain pipe is more than 1/50.
fInsulate the drain pipe and drain plug with insulation over 10 mm thick.
fInstall self-regulating heating cable on the drain pipe to prevent it from freezing.
fIf you have installed a heater to prevent drain pipe from freezing, install a safety equipment for a heating appliance.
ENGLISH-17
Drain pipe installation
Rubber washer
fAnchor bolt specifications
Diameter of
the bore (a)
M10
14 mm
Anchor length Sleeve length
(b)
(C)
75 mm
40 mm
Insertion
depth
Fastening
torque
50 mm
30 N·m
M10
b
Size
c
CAUTION
Cautions regarding connecting the anchor bolt
fUse the rubber washer to prevent the anchor bolt from corroding.
❋ Use anchor bolts and nuts made of plated zinc or STS material. Regular anchor
bolts or nuts may get damaged by corrosion.
a
Cautions regarding anti-vibration frame installation
fDuring installation, make sure there is no gap between the base ground and the supporting structures such as
anti-vibration frame or H beam.
fBase ground must be constructed firmly to support the bottom part of the anti-vibration mount.
fAfter installing the anti-vibration frame, unscrew the fixing part on the top and bottom part of the frame.
fIf the anti-vibration frame or H beam is fixed to the base ground with anchor bolts, make sure that
waterproofed surface is not damaged by anchor bolts and apply additional waterproof solution if necessary.
ENGLISH-18
Refrigerant pipe installation
WARNING
• When installing, make sure there is no leakage. When collecting the refrigerant, stop the compressor first before
removing the connection pipe. If the refrigerant pipe is not properly connected and the compressor is working
with the service valve open, the pipe sucks the air in which makes the pressure inside of the refrigerant cycle
abnormally high which may lead to explosion and injury.
02
fThe length of refrigerant pipe should be as short as possible and the height difference between an indoor and outdoor
unit should be minimized.
fPiping work must be done within allowable piping length, height difference, and the allowable length after branching.
fThe pressure of the R-410A is high. Use only certified refrigerant pipe and follow the installation method.
fAfter installing the pipes, calculate the total length of the pipe to check if additional refrigerant is needed. When you need
to charge the additional refrigerant, make sure to use R-410A refrigerant.
fThe inside of the refrigerant pipe must be clean and contain no harmful ions, oxides, dust, iron particles or moisture.
fUse tools and accessories compatible with R-410A refrigerant gas.
Tool
Installation
process/purpose
Compatibility with conventional tool
Pipe cutter
Pipe cutting
Flaring tool
Pipe flaring
Refrigerant
machine oil
Refrigerant pipe
installation
Apply refrigerant
oil on flared part
Torque wrench
Connect flare nut
with pipe
Pipe bender
Pipe bending
Nitrogen gas
Prevent oxidation
within the pipe
Air tightness test
Welder
Manifold gage
Refrigerant
charging hose
Vacuum pump
Compatible
Exclusive ether oil, ester oil, alkali benzene oil or synthetic oil
Compatible
Pipe welding
Air tightness
test ~ additional
refrigerant
charging
Vacuuming,
charging
refrigerant
and checking
operation
Need exclusive one to prevent mixture of R-22 refrigerant oil use and
also the measurement is not available due to high pressure
Need exclusive one since there is risk of refrigerant leakage or
contamination
Compatible (Use products which contain the check valve to prevent
the oil from flowing backward into the outdoor unit.) Use the one
that can be vacuumed up to -100.7kpa(5Torr).
Pipe drying
Scale for
refrigerant
charging
Gas leak detector
Flare nut
Compatible
Gas leak test
Need exclusive one
(Ones used for R-134a is compatible)
Must use the flare nut supplied with the product. Refrigerant leakage may occur when the conventional flare
nut for R-22 is used.
ENGLISH-19
INSTALLING THE PRODUCT
Refrigerant pipe work
Refrigerant pipe installation
Selecting refrigerant pipe
Y-joint
Increase the
main pipe size
fInstall the refrigerant pipe according to main pipe size of each outdoor unit capacity.
fWhen the pipe length (including elbow) between the outdoor unit and the farthest indoor unit exceeds 90m, the size of
the pipe (main pipe) connecting the outdoor unit to the first branch joint must be increased by one grade.
fFor HR System, when the pipe length (including elbow) between an outdoor unit and the farthest indoor unit exceeds 90
m, you must increase the size of the liquid pipe by one grade among the pipes(main pipe) which connects between the
outdoor unit to the first branch joint
H/P
22.4 kW
22.4 kW 56.0 kW
Ex.) 100.8 kW
(D)
(1)
(2)
(C)
Outdoor unit
capacity (kW)
No.
22.4
(3)
(E)
Pipe size (mm)
Liquid pipe
Gas pipe
(1)
9.52
19.05
44.8
(2)
12.70
28.58
100.8
(3)
19.05
41.28
(A)
(B)
Size of the pipe connected to the outdoor unit (A)
Select the size of the pipe according to the below table.
Outdoor unit capacity (kW)
(Cooling)
22.4 kW
28.0 kW
33.6 kW
44.8 kW
Maximum pipe length within 90m
Liquid pipe (mm)
Ø 9.52
61.6 kW
Ø 19.05
Ø 22.22
Ø 12.70
50.4 kW
56.0 kW
Gas pipe (mm)
Maximum pipe length over 90m
Liquid pipe (mm)
Ø 12.70
Gas pipe (mm)
Ø 22.22
Ø 25.40 note1)
Ø 15.88
Ø 28.58
Ø 19.05
Ø 31.75 note2)
Ø 28.58
Ø 15.88
67.2 kW
ENGLISH-20
Outdoor unit capacity (kW)
(Cooling)
Maximum pipe length within 90m
Liquid pipe (mm)
Gas pipe (mm)
72.8 kW ~ 84.0 kW
Liquid pipe (mm)
Ø 19.05
Ø 22.22
Ø 41.28
Ø 41.28
173.6 kW ~ 252.0 kW
Φ 22.22
274.4 kW ~ 336.0 kW
Φ 25.40
Ø 53.98
Ø 25.40 note1)
Ø 53.98
❋ Maximum pipe length : The pipe length between an outdoor unit and the farthest indoor unit.
Note1) If Ø 25.40 pipe is not available on site, use Ø 28.58 pipe.
Note2) If Ø 31.75 pipe is not available on site, use Ø 34.92 pipe.
Note3) If Ø 38.10 pipe is not available on site, use Ø 41.28 pipe
Ú For the case that the diameter of the default pipe of an outdoor unit does not match that of the pipe installed on the site,
a socket is provided by default together with the outdoor unit.
Size of the pipe between branch joints (B)
Select the pipe size according to the sum of indoor unit capacity which will be connected after the branch.
Ú However, if the size of the pipe between branch joints (B) is bigger than the size of the pipe connected to the outdoor
unit (A), apply the pipe size (A).
Indoor unit capacity (kW)
Branch pipe length within 45m
Liquid pipe (mm)
15.0 kW and below
15.1 kW ~ 22.4 kW
28.2 kW ~ 40.0 kW
45.1 kW ~ 63.3 kW
63.4 kW ~ 70.3 kW
Ø 9.52
Gas pipe (mm)
Ø 19.05
Ø 12.70
Ø 22.22
Ø 19.05
Ø 25.40 note1)
Ø 22.22
Ø 12.70
Ø 28.58
Ø 15.88
Ø 15.88
Ø 19.05
135.3 kW ~ 169.0 kW
169.0 kW ~ 275.0 kW
Ø 22.22
Over 275.0 kW
Ø 25.40
Ø 28.58
Ø 31.75 note2)
Ø 19.05
Ø 38.10 note3)
Ø 34.92
70.4 kW ~ 98.4 kW
98.5 kW ~ 135.2 kW
Liquid pipe (mm)
Ø 15.88
22.5 kW ~ 28.1 kW
40.1 kW ~ 45.0 kW
Gas pipe (mm)
Branch pipe length between 45~90m
Ø 41.28
Ø 53.98
Note1) If Ø 25.40 pipe is not available on site, use Ø 28.58 pipe.
Note2) If Ø 31.75 pipe is not available on site, use Ø 34.92 pipe.
Note3) If Ø 38.10 pipe is not available on site, use Ø 41.28 pipe
ENGLISH-21
Ø 22.22
Ø 25.40 note1)
Ø 41.28
Ø 53.98
INSTALLING THE PRODUCT
140.0 kW ~ 168.0 kW
02
106.4 kW ~ 134.4 kW
Gas pipe (mm)
Ø 38.10 note3)
Ø 34.92
89.6 kW ~ 95.2 kW
100.8 kW
Maximum pipe length over 90m
Refrigerant pipe installation
Size of the pipe between the branch joint and the indoor unit
Make a selection according to outdoor unit capacity.
Pipe size (O.D. mm)
Indoor unit capacity (kW)
Liquid pipe
Gas pipe
6.0 kW and below
Ø 6.35
Ø 12.70
6.1 kW ~ 16.0 kW
Ø 9.52
Ø 15.88
16.1 kW ~ 23.0 kW
Ø 9.52
Ø 19.05
Over 23.0 kW
Ø 9.52
Ø 22.22
Branch joint
fBranch joint between outdoor units (C)
Classification
Y-joint for outdoor unit (C)
Model name
Specification (kW)
MXJ-TA3419M
134.4 kW and below
MXJ-TA4122M
140.0 kW and over
fFirst branch joint (D)
Make a selection according to outdoor unit capacity.
Classification
Y-joint (D)
Outdoor unit capacity (kW)
Model name of the branch joint
33.6 kW and below
MXJ-YA2512M
44.8 kW
MXJ-YA2812M
50.4 kW ~ 67.2 kW
MXJ-YA2815M
72.8 kW ~ 95.2 kW
MXJ-YA3419M
100.8 kW ~ 134.4 kW
MXJ-YA4119M
140.0 kW and over
MXJ-YA4422M
fBranch joint (E)
Select a branch joint according to the sum of indoor unit capacity which will be connected after the branch.
Ú However, if the size of the pipe between branch joints (E) is bigger than the size of the pipe connected to the outdoor unit
(D), apply the pipe size (D).
1) Y-joint
Classification
Y-joint (E)
Model name
Specification (kW)
MXJ-YA1509M
15.0 kW and below
MXJ-YA2512M
Over 15.0 kW ~ 40.0 kW and below
MXJ-YA2812M
Over 40.0 kW ~ 45.0 kW and below
MXJ-YA2815M
Over 45.0 kW ~ 70.3 kW and below
MXJ-YA3419M
Over 70.3 kW ~ 98.4 kW and below
MXJ-YA4119M
Over 98.4 kW ~ 135.2 kW and below
MXJ-YA4422M
Over 135.2 kW
Model name
Specification (kW)
MXJ-HA2512M
45.0 kW and below (for 4 rooms)
MXJ-HA3115M
70.3 kW and below (for 8 rooms)
MXJ-HA3819M
Over 70.3 kW (for 8 rooms)
2) Distribution header
Classification
Distribution header (E)
ENGLISH-22
H/R
22.4 kW 22.4 kW
56.0 kW
Ex.) 100.8 kW
(D)
(C)
(3)
(E)
22.4
(1)
Liquid pipe
9.52
Low pressure gas High pressure
pipe
gas pipe
19.05
15.88
44.8
(2)
12.70
28.58
41.28
100.8
(3)
19.05
41.28
34.92
(F)
Size of the pipe connected to the outdoor unit (A)
Select the size of the pipe according to the below table.
Outdoor unit capacity
(kW)
(Cooling)
22.4 kW
28.0 kW
33.6 kW
44.8 kW
Maximum pipe length within 90m
Liquid pipe
(mm)
Ø 9.52
61.6 kW
High pressure
gas pipe (mm)
Ø 19.05
Ø 15.88
Ø 22.22
Ø 12.70
Low pressure
gas pipe (mm)
High pressure
gas pipe (mm)
Ø 19.05
Ø 15.88
Ø 22.22
Ø 22.22
Ø 28.58
Ø 28.58
Ø 15.88
Ø 19.05
67.2 kW
Ø 28.58
Ø 28.58
Ø 34.92
89.6 kW ~ 95.2 kW
Ø 34.92
Ø 19.05
106.4 kW ~ 134.4 kW
Ø 19.05
Ø 15.88
Ø 22.22
72.8 kW ~ 84.0 kW
100.8 kW
Liquid pipe
(mm)
Ø 19.05
Ø 12.70
50.4 kW
56.0 kW
Low pressure
gas pipe (mm)
Maximum pipe length over 90m
Ø 22.22
Ø 41.28
Ø 34.92
Ø 53.98
Ø 41.28
Ø 41.28
Ø 34.92
Ø 53.98
Ø 41.28
140.0 kW ~ 168.0 kW
173.6 kW ~ 252.0 kW
Ø 22.22
274.4 kW ~ 336.0 kW
Ø 25.40
Ø 25.40
*Maximum pipe length : The pipe length between an outdoor unit and the farthest indoor unit.
Note1) If Ø 25.40 pipe is not available on site, use Ø 28.58 pipe.
Ú For HR model, only increase the size of the liquid pipe If pipe length exceeds 90m
Ú For the case that the diameter of the default pipe of an outdoor unit does not match that of the pipe installed on the site,
a socket is provided by default together with the outdoor unit.
ENGLISH-23
INSTALLING THE PRODUCT
(A)
(B)
(2)
No.
02
(1)
Pipe size (mm)
Outdoor unit
capacity (kW)
Refrigerant pipe installation
Size of the pipe between branch joints (B)
Select the pipe size according to the sum of indoor unit capacity which will be connected after the branch.
Ú However, if the size of the pipe between branch joints (B) is bigger than the size of the pipe connected to the outdoor
unit (A), apply the pipe size (A).
If the pipe length from the first branch joint to the farthest indoor unit is 45 m to 90 m, increase the sizes of the liquid pipe
and low pressure gas pipe according to the table below.
- When the Heat Pump is installed: The liquid pipe and low pressure gas pipe from the first branch joint to the branch joint of
the farthest indoor unit (Refer to page 40.)
- When the Heat Recovery is installed (combination of branch joints and MCU): The liquid pipe and low pressure gas pipe
from the first branch joint to the MCU (Refer to page 42.)
Branch pipe length between 45~90m
Pipe size (mm)
Indoor unit capacity (kW)
(Cooling)
Liquid pipe
Low pressure High pressure
gas pipe
gas pipe
15.0 kW and below
15.1 kW ~ 22.4 kW
Ø 15.88
Ø 9.52
22.5 kW ~ 28.1 kW
Ø 19.05
Ø 22.22
28.2 kW ~ 33.6 kW
33.7 kW ~ 40.0 kW
Ø 15.88
Ø 19.05
Ø 19.05
Ø 22.22
Ø 22.22
Ø 31.75 note2)
Ø 15.88
Ø 19.05
Ø 34.92
70.4 kW ~ 98.4 kW
Ø 19.05
135.3 kW ~ 169.0 kW
169.0 kW ~ 275.0 kW
Ø 22.22
Over 275.0 kW
Ø 25.40
Ø 28.58
Ø 41.28
Ø 34.92
Ø 53.98
Ø 41.28
Ø 38.10 note3)
Ø 22.22
Ø 41.28
Ø 25.4 note1)
Ø 53.98
Ø 28.58
Note1) If Ø 25.40 pipe is not available on site, use Ø 28.58 pipe.
Note2) If Ø 31.75 pipe is not available on site, use Ø 34.92 pipe..
Note3) If Ø 38.10 pipe is not available on site, use Ø 41.28 pipe
Size of the pipe between the branch joint and indoor unit
Make a selection according to outdoor unit capacity.
Indoor unit capacity (kW)
Ø 15.88
Ø 28.58
Ø 15.88
Ø 28.58
63.4 kW ~ 70.3 kW
98.5 kW ~ 135.2 kW
Ø 22.22
Ø 25.40 note1)
45.1 kW ~ 50.4 kW
50.5 kW ~ 63.3 kW
Low
High
pressure gas pressure gas
pipe(mm)
pipe(mm)
Ø 12.70
Ø 19.05
Ø 12.70
40.1 kW ~ 45.0 kW
Liquid
pipe(mm)
Pipe size (O.D. mm)
Liquid pipe
Gas pipe
6.0 kW and below
Ø 6.35
Ø 12.70
6.1 kW ~ 16.0 kW
Ø 9.52
Ø 15.88
16.1 kW ~ 23.0 kW
Ø 9.52
Ø 19.05
Over 23.0 kW
Ø 9.52
Ø 22.22
ENGLISH-24
Ø 28.58
Ø 34.92
Ø 41.28
Branch joint
fBranch joint between outdoor units (C)
Classification
Liquid/Low pressure Y-joint (C)
Specification (kW)
134.4 kW and below
140.0 kW and over
MXJ-TA3100M
134.4 kW and below
MXJ-TA3800M
140.0 kW and over
fFirst branch joint (D)
Make a selection according to outdoor unit capacity.
Classification
Liquid/Low pressure Y-joint (D)
High pressure Y-joint (D)
Outdoor unit capacity (kW)
Model name of the branch joint
33.6 kW and below
MXJ-YA2512M
44.8 kW
MXJ-YA2812M
50.4 kW ~ 67.2 kW
MXJ-YA2815M
72.8 kW ~ 95.2 kW
MXJ-YA3419M
100.8 kW ~ 134.4 kW
MXJ-YA4119M
140.0 kW and over
MXJ-YA4422M
22.4 kW
MXJ-YA1500M
28.0 kW ~ 67.2 kW
MXJ-YA2500M
72.8 kW ~ 134.4 kW
MXJ-YA3100M
140.0 kW and over
MXJ-YA3800M
fBranch joint (E)
Select a branch joint according to the sum of indoor unit capacity which will be connected after the branch.
Ú However, if the size of the pipe between branch joints (E) is bigger than the size of the pipe connected to the outdoor unit
(D), apply the pipe size (D).
• Y-joint
Classification
Y-joint (E)
Y-joint (E)
(Only H/R)
Model name
Specification (kW)
MXJ-YA1509M
15.0 kW and below
MXJ-YA2512M
Over 15.0 kW ~ 40.0 kW and below
MXJ-YA2812M
Over 40.0 kW ~ 45.0 kW and below
MXJ-YA2815M
Over 45.0 kW ~ 70.3 kW and below
MXJ-YA3419M
Over 70.3 kW ~ 98.4 kW and below
MXJ-YA4119M
Over 98.4 kW ~ 135.2 kW and below
MXJ-YA4422M
Over 135.2 kW
MXJ-YA1500M
22.4 kW and below
MXJ-YA2500M
Over 22.4 kW ~ 70.3 kW and below
MXJ-YA3100M
Over 70.3 kW ~ 135.2 kW and below
MXJ-YA3800M
Over 135.2 kW
ENGLISH-25
INSTALLING THE PRODUCT
MXJ-TA4122M
02
High pressure Y-joint (C)
Model name
MXJ-TA3419M
Refrigerant pipe installation
Additional refrigerant
H/P
HR
56.0 kW
20 HP
12 HP
10 HP
61.6 kW
Ø15.88 (5 m)
Ø9.52 (1 m)
Ø12.70 (5 m)
7.1 kW
Ø15.88 (5 m)
Ø15.88 (10 m)
Ø9.52 (5 m)
7.1 kW
Ø12.7 (5 m)
Ø12.70 (10 m) Ø12.70 (10 m)
MCU
Ø9.52 (10 m)
Ø12.7 (10 m)
7.1 kW
MCU
Ø6.35 (15 m)
Ø9.52
(10 m)
Ø9.52 (15 m)
3.6 kW
7.1 kW
Ø9.52 (15 m)
Ø9.52 (10 m)
Ø6.35 (2 m)
11.2 kW
Ø9.52 (10 m)
Ø9.52
(25 m)
Ø9.52 (15 m)
Ø9.52 (10 m)
Ø9.52 (10 m)
9.0 kW
Ø9.52 (10 m)
Ø9.52 (18 m)
7.1 kW
Ø9.52 (18 m)
Ø6.35 (5 m)
7.1 kW
7.1 kW
7.1 kW
11.2 kW
3.6 kW
7.1 kW
7.1 kW
ENGLISH-26
7.1 kW
Refrigerant pipe installation
fBasic amount of refrigerant inside the outdoor unit (kg)
- Amount of additional refrigerant has to be calculated based on the sum of all liquid pipe lengths.
Classification
AM080FXWA✴✴
AM100FXWA✴✴
AM120FXWA✴✴
AM200FXWA✴✴
AM300KXWA✴✴
Basic amount
5.5
5.8
6.0
9.8
11
02
Size of liquid pipe (mm)
6.35
9.52
12.70
15.88
19.05
22.22
25.40
28.58
Additional amount (kg/m)
0.02
0.06
0.125
0.18
0.27
0.35
0.53
0.65
- For the indoor unit already connected to EEV kit, the additional refrigerant charging is 0.01kg per meter regardless of
the pipe size.
fAmount of additional refrigerant for each indoor unit ( )
(Unit : kg)
Capacity (kW)
Model
1 .5 1 .7 2 .2 2 .8 3 .2 3 .6 4 .5 5 .6 6 7 .1 8 .2 9
Slim 1way
cassette (JSF)
(AM✴✴✴FN1DE✴✴)
(AM✴✴✴JN1DE✴✴)
0 .32
0 .32
2way cassette
(AM✴✴✴FN2DE✴✴)
0 .31
0 .47
4Way Casette S
(AM✴✴✴FN4DE✴✴)
0 .45 0 .45
0 .45
0 .45
0 .57 0 .69 0 .69
360 Casette
(AM✴✴✴KN4DE✴✴)
0 .45 0 .45
0 .45
0 .45
0 .69 0 .69 0 .69
0 .32
0 .32
Interior 1way cassette
(AM✴✴✴HN1DE✴✴)
0 .25 0 .25
0 .25
9.3 11 .2 12 .8 14 16 18 22 22 .4 28 32 50
0 .15 0 .15
Floor Standing Unit
(AM✴✴✴✴NFDE✴✴)
0 .22
ERV plus
(AM✴✴✴FNKDE✴✴)
4way cassette S
(600 X 600)
0 .29
(AM✴✴✴FNNDE✴✴)
0 .11 0 .36
0 .29 0 .29
0 .29 0 .37 0 .37 0 .37
Duct S
(AM✴✴✴✴HNMPK✴/✴)
0 .22 0 .22 0 .22
0 .22
Duct S
(AM✴✴✴HNMPK✴9✴)
0 .31 0 .31 0 .38 0 .38
0 .38
0 .31
Duct S
(AM✴✴✴HNHPK✴/✴)
Slim duct
(AM✴✴✴FNLDE✴✴)
0 .38 0 .38 0 .38
0 .38 0 .38 0 .38
0 .17 0 .17 0 .17
Slim duct
(with drain pump)
(AM✴✴✴KNLDE✴✴)
MSP duct
(AM✴✴✴✴NMDE✴✴)
500 1000
CMH CMH
0 .24 0 .24
0 .26 0 .35 0 .35
0 .45
0 .42
0 .42 0 .62 0 .62
0 .35 0 .35
0 .45
0 .42
0 .42 0 .62 0 .62
0 .24 0 .28 0 .28
0 .28
0 .32
0 .54 0 .68 0 .68 0 .91
ENGLISH-27
INSTALLING THE PRODUCT
fAmount of additional refrigerant depends on the pipe size (ⓐ)
- Amount of additional refrigerant has to be calculated based on the sum of all liquid pipe length.
Refrigerant pipe installation
Capacity (kW)
Model
1 .5 1 .7 2 .2 2 .8 3 .2 3 .6 4 .5 5 .6 6 7 .1 8 .2 9
MSP duct
(with drain pump)
(AM✴✴✴KNMDE✴✴)
Home Duct
(AM✴✴✴KNLDEH)
0 .24 0 .24
0.13 0.13 0.13
0 .24 0 .28 0 .28
0 .28
9.3 11 .2 12 .8 14 16 18 22 22 .4 28 32 50
0 .32
500 1000
CMH CMH
0 .54 0 .68 0 .68 0 .91
0.17
Ceiling
(AM✴✴✴FNCDE✴✴/
AM✴✴✴JNCDK✴✴)
0 .39
0 .39
0 .56
Console
(AM✴✴✴✴NJDE✴✴)
0 .16 0 .27
0 .27 0 .27 0 .27
Neo forte
0 .24
(AM✴✴✴FNTDE✴✴)
0 .24 0 .24
0 .24
0 .36
0 .36
Neo forte (with EEV)
0 .34
(AM✴✴✴FNQDE✴✴)
0 .34 0 .34
0 .34 0 .51 0 .51
0 .51
AR5000
0 .16
(AM✴✴✴JNADK✴✴)
0 .16 0 .19
0 .25 0 .25 0 .52
0 .52 0 .52
AR5000 (with EEV)
0 .22
(AM✴✴✴JNVDK✴✴)
0 .22 0 .25
0 .34 0 .34 0 .71
0 .71 0 .71
New Boracay
0.24
(AM✴✴✴KNTDE✴✴)
0.24 0.32
0.32 0.49 0.49
0.49
New Boracay
(with EEV)
0.24
(AM✴✴✴KNQDE✴✴)
0.24 0.32
0.32 0.49 0.49
0.49
MAX 4
(AM✴✴✴MNQDE✴✴)
0 .95
0.49
HSP duct
(AM✴✴✴FNHDE✴✴)
0 .68 0 .68 0 .68
1 .18
1 .18
OAP duct
(AM✴✴✴JNEPE✴✴)
0 .68
1 .18
1 .18
Big duct
(AM✴✴✴JNHFK✴✴)
1 .15
PAC
(AM✴✴✴JNPD✴✴)
0.73
Hydro Unit HE
(AM✴✴✴FNBD✴✴)
1.85
0.6
Hydro Unit HT
(AM✴✴✴FNBF✴✴)
0.6 note1)
MCU
(MCU-S✴NE✴✴N)
0.5
1 .15
0.7 1.2
fIf AHU kit is included among the indoor units, you must add 0.063 kg of refrigerant for every 1 kW of the AHU capacity
increase.
Note1) In case the capacity conjunction of the Hydro Unit HT exceeds 50 % among the total indoor unit, please don’t put the
additional refrigerant.
ENGLISH-28
Liquid pipe (ⓐ)
Classification
Indoor unit (ⓑ)
Size of liquid pipe
Unit amount of
refrigerant (kg/m)
Amount of
additional
refrigerant (kg)
Total amount
of additional
refrigerant (kg)
∑(①×②)
①
②
①×②
6.35
5
0.02
0.1
9.52
70
0.06
4.2
12.70
15
0.125
1.875
15.88
10
0.18
1.8
Model name of
indoor unit
Number of units
Unit amount of
refrigerant (kg/EA)
Amount of
additional
refrigerant (kg)
Total amount
of additional
refrigerant (kg)
∑(①×②)
ⓐ 7.975
①
②
①×②
4way cassette
(AM071FN4DEH✴)
3
0.45
1.35
4way cassette
(AM090FN4DEH✴)
1
0.45
0.45
Slim duct
(AM071FNLDEH✴)
3
0.45
1.35
1way cassette
(AM036FN1DEH✴)
1
0.25
0.25
Length (m)
Unit amount of
refrigerant (kg/m)
Amount of
additional
refrigerant (kg)
Total amount
of additional
refrigerant (kg)
①
②
①×②
∑(①×②)
6.35
15
0.02
0.3
9.52
112
0.06
6.72
12.70
25
0.125
3.125
15.88
10
0.18
1.8
6.35
(EEV Kit ~ indoor
unit)
2
0.01
0.02
ⓑ 3.4
- Total amount of refrigerant (ⓐ+ⓑ) = 7.975+3.4=11.375 (kg)
fExample of refrigerant calculation for HR System
Classification
Liquid pipe (ⓐ)
Size of liquid pipe
ENGLISH-29
ⓐ 11.965
INSTALLING THE PRODUCT
Classification
Length (m)
02
fMethod to calculate the total amount of additional refrigerant
- Amount of additional refrigerant depends on the pipe length (ⓐ)
- Amount of additional refrigerant for each indoor unit (ⓑ) = ∑(Amount of additional refrigerant for each connected
indoor unit) ❇ Refer to the table
- Total amount of additional refrigerant = ⓐ+ⓑ
❋ Sum of total amount of additional refrigerant and the basic amount of refrigerant should not exceed 100 kg. If the
refrigerant exceeds 100kg, separate the module so that the weight of the refrigerant doesn't exceed 100 kg.
Ex.) For AM200FXWA✴✴, basic amount of refrigerant is 9.8 kg, therefore total amount of additional refrigerant (ⓐ+ⓑ)
should not exceed 90.2 kg.
fExample of refrigerant calculation for H/P System
Refrigerant pipe installation
Model name of
indoor unit
Classification
Indoor unit (ⓑ)
Number of units
Unit amount of
refrigerant (kg/EA)
Amount of
additional
refrigerant (kg)
Total amount
of additional
refrigerant (kg)
∑(①×②)
①
②
①×②
4way cassette
(AM071FN4DEH✴)
5
0.45
2.25
4way cassette
(AM112FN4DEH✴)
2
0.57
1.14
Neo Forte
(AM036FNTDEH✴)
1
0.24
0.24
MCU
2
0.5
1
ⓑ 4.63
- Total amount of refrigerant (ⓐ+ⓑ) = 11.965+4.63 = 16.595 (kg)
Temper grade and minimum thickness of the refrigerant pipe
CAUTION
Outer diameter (mm)
Minimum thickness (mm)
6.35
0.70
9.52
0.70
12.70
0.80
15.88
1.00
19.05
0.90
22.22
0.90
25.40
1.00
28.58
1.10
31.75
1.10
34.92
1.21
38.10
1.35
41.28
1.43
44.45
1.60
50.80
2.00
53.98
2.10
Temper grade
Annealed
Drawn
• For pipes larger than Ø 19.05, drawn type (C1220T-1/2H or C1220T-H) type copper pipe must be used. If a
annealed type (C1220T-O) copper pipe is used, pipe may break due to its low pressure resistance and cause
personal injury.
ENGLISH-30
Keeping refrigerant pipe
To prevent foreign materials or water from entering the pipe, storing method and sealing method (especially during
installation)is very important. Apply correct sealing method depending on the environment.
Exposure place
Sealing type
Pipe pinch
Taping
-
Taping
Refrigerant pipe welding and safety information
CAUTION
Important information for refrigerant pipe work
• Make sure there is no moisture inside the pipe.
• Make sure there are no foreign substances and impurities in the pipe.
• Make sure there is no leakage.
• Make sure to follow the instruction when welding or storing the pipe.
Nitrogen flushing welding
fWhen welding the refrigerant pipes, flush them with nitrogen gas as shown in the picture.
fIf you do not perform nitrogen flushing when welding the pipes, oxide may form inside the pipe. It can cause the
damage of the important parts such as compressor and valves etc.
fAdjust the flow rate of the nitrogen flushing with a pressure regulator to maintain 0.05m3/h or less.
Ø 6.35 copper pipe
Welding part
Nitrogen gas
Stop valve
Pressure regulator
Taping
Flowmeter
Nitrogen gas
High pressure hose
Direction of the pipe when welding
fDirection of the pipe should be headed downward or in a sideways when welding.
fAvoid welding the pipe with pipe direction heading upward.
CAUTION
• When you test gas leakage after welding the pipes, use a designated solution for gas leakage detection. If you
use the detection solution that includes sulfuric ingredient, it may cause corrosion to the pipes.
ENGLISH-31
INSTALLING THE PRODUCT
Shorter than one month
Indoor
02
Outdoor
Exposure time
Longer than one month
Refrigerant pipe installation
Cutting or flaring the pipes
1. Make sure that you prepared the required tools.
fPipe cutter, Deburring tool, flaring tool and pipe holder, etc.
2. If you want to shorten the pipe, cut it with a pipe cutter ensuring that the cut edge remains at 90° with the side of the
pipe.
fRefer to below illustrations for correct and incorrect examples of cut edges.
Rough
Oblique
90°
Burr
3. To prevent a gas leak, remove all burrs at the cut edge of the pipe using a Deburring tool.
4. Carry out flaring work using flaring tool as shown below.
[Flaring tools]
A
Yoke
Flaring bar
Flaring bar
Clutch type
Wing nut type
Pipe diameter
[D (mm)]
Pipe
Flare nut
Pipe
Depth of flaring part [A (mm)]
Using conventional flaring tool
Using flaring tool for
R-410A
Clutch type
Wing nut type
Ø 6.35
0~0.5
1.0~1.5
1.5~2.0
Ø 9.52
0~0.5
1.0~1.5
1.5~2.0
Ø 12.70
0~0.5
1.0~1.5
1.5~2.0
Ø 15.88
0~0.5
1.0~1.5
1.5~2.0
5. Check that you flared the pipe correctly.
fRefer to below illustrations for correct and incorrect examples of flared pipe.
Correct
CAUTION
Inclined
Damaged Surface
Cracked
Uneven Thickness
• If foreign matters or burrs are not removed after cutting pipe, refrigerant gas may leak.
• If foreign matters enter inside the pipe, important interior parts of the unit may get damaged or product
efficiency will be reduced. So, the direction of pipe should be downward during pipe cutting or flaring.
ENGLISH-32
Connecting the flared pipes
fCheck if the flaring is properly done according to the standard size.
fAlign the center of the piping and tighten the flare nut with your hands. Then, tighten the flare nut with torque wrench in
a direction of the arrow indicated in below illustration.
fMake sure to use ester oil to coat the flare connection section.
02
Pipe
Monkey wrench
INSTALLING THE PRODUCT
Torque wrench
Connection torque (N·m)
Flare dimension (L, mm)
Ø 6.35
14~18
8.7~9.1
Ø 9.52
34~42
12.8~13.2
Ø 12.70
49~61
16.2~16.6
Ø 15.88
68~82
19.3~19.7
Ø 19.05
100~120
23.6~24.0
Flare shape (mm)
45° ±2°
Outer diameter (D, mm)
Flare nut
90° ±2°
Flare connection section
R 0.4~0.8
D
L
Ú 1 N•m = 10 kgf•cm
CAUTION
•
•
•
•
•
Blowing Nitrogen gas should be done when welding the pipe.
Make sure to use the provided flare nut.
Make sure that there are no cracks or twisted part when you need to bend the pipe.
Do not fasten the flare nut with excessive strength.
R-410A is a high pressure refrigerant and there is a risk of refrigerant leakage if the flare connection is not coated
with ester oil. Therefore, apply ester oil to coat the flare connection area.
ENGLISH-33
Refrigerant pipe installation
Pipe installation for an outdoor unit
1. Please read the following instructions to connect the refrigerant pipe to an outdoor unit.
- For H/P System, connect liquid and gas pipes to an indoor unit.
- For HR System, connect liquid and high/low pressure gas pipes to a MCU. Close the internal heat pump valve and set
the following option switch.
- For module installation, make sure that each heat pump valve and the following option switch setting is adjusted
according to each purpose. (When installing outdoor units in module, E573 error may occur when settings are different
between outdoor units.)
Classification
H/P System
HR System
Liquid pipe
High pressure gas pipe
Liquid pipe
High pressure gas pipe
Not in use
(Low pressure gas
pipe)
Low pressure gas pipe
Heat pump valve
(Open)
Heat pump valve
(Close)
Service valve
Heat pump valve
A Type PBA (K5)
Option
switch B Type PBA Key
mode (K1+K2)
Open (Factory default)
Close (Set during installation)
ON (Factoty default)
OFF (Set during installation)
Set as "ht 00" (Factory default)
Set as "ht 01" (Set during installation)
Ú Refer to the outdoor unit key function option switch and key function (page 71, 72)
Caution for welding the pipe to an outdoor unit
CAUTION
• When welding the pipe, the unit may get damaged by the heat and flame from welding. Use a flame proofing
cloth to protect the unit from a brazing fire or flame.
• The O-ring and Teflon packing inside service valve may get damaged by the heat from welding. Wrap the
bottom side of the service valve with a wet cloth and weld it. Also, water dripping from the wet cloth may
interrupt the welding. Make sure the water does not drip from the wet cloth.
• Make sure that connected pipes does not interrupt each other or make contact with the product. If they contact
each other or contact with the outdoor unit, vibration will occur and it may cause damage to the pipes.
• When removing the sealed pipe on the bottom side of the service valve, cut it with a pipe cutter first and then
start the welding. When the sealed pipe is welded without cutting, you may get injured by the refrigerant within
the pipe.
ENGLISH-34
1. Connect refrigerant pipes between outdoor units.
fTo connect pipes between outdoor units, branch joints (that needs to be purchased separate) must be installed.
❋ For optimal distribution of the refrigerant, you must use Y-joint for connecting outdoor units. (Do not use
T-joint)
fWhen outdoor units are installed in module, there are no restrictions on the order of installation.
Correct installation
When refrigerant
pipe is installed
at higher level
than the pipe
connection part of
the outdoor unit,
you must install
a trap at the gas
pipe.
Branch joint
between outdoor
units must
be installed
horizontally.
ENGLISH-35
INSTALLING THE PRODUCT
200 mm or more
Incorrect installation
02
Caution
Refrigerant pipe installation
Caution
Correct installation
Incorrect installation
200~300 mm
When the piping
length between
outdoor unit and
the branch joint
exceeds 2 m,
install a vertical
trap as show in
the figure.
1 m or less
2 m or more
2 m or more
ENGLISH-36
Examples of refrigerant pipe installation
H/P
1. Using Y-joint
02
INSTALLING THE PRODUCT
2. Using distribution header
HR
1. Using Y-joint
MCU
MCU
MCU
MCU
ENGLISH-37
Refrigerant pipe installation
Allowable length of the refrigerant pipe and the installation examples
H/P
Classification
Single Installation
Module installation
Outdoor unit
Outdoor unit
Branch joint
Branch joint
Installing only with
Y-joint
Indoor unit
Outdoor unit
Indoor unit
Branch joint
Distribution header
Outdoor unit
Distribution header
Branch joint
Installing with Y-joint
and distribution
header
Indoor unit
Indoor unit
Outdoor unit
Outdoor unit
Distribution header
Distribution header
Installing only with
distribution header
Indoor unit
Indoor unit
ENGLISH-38
Classification
Example
170 m and
below (190
m and
below)
Maximum
allowable
pipe length
Installing only with
a+i ≤ 170 (190) m
distribution header
Installing only with
Y-joint
Total length 500 m or
of pipe (m) less
Equivalent length
• Y-joint: 0.5 m
• Distribution
header: 1 m
Installing with
a+b+h ≤ 170 (190) m,
Y-joint and
a+i+k ≤ 170 (190) m
distribution header
INSTALLING THE PRODUCT
Outdoor unit ~
Indoor unit
a+b+c+d+e+f+g+p ≤
170 (190) m
a+b+c+d+e+f+g+p+h+
i+j+k+l+m+n ≤ 500 m
Installing with
a+b+c+d+e+f+g+h+
Y-joint and
i+j+k ≤ 500 m
distribution header
Installing only with a+b+c+d+e+f+g+h+i
distribution header ≤ 500 m
Outdoor unit~
Outdoor unit
(Module
installation)
Maximum
allowable
height
difference
Maximum
allowable
length after
branch joint
Pipe length
10 m or less r ≤ 10 m, s ≤ 10 m, t ≤ 10 m
Equivalent
length
13 m or less r ≤ 13 m, s ≤ 13 m, t ≤ 13 m
Height
difference
200mm
or more
1.5 m or less H5 ≤ 1.5 m
H5
Outdoor unit ~
Indoor unit
50/40 m Note 2)
H1 ≤ 50/40 m
Indoor unit ~
Indoor unit
50 m or less
H2 ≤ 50 m
First branch
joint ~ Farthest
Indoor unit
Pipe length
45 m or less b+c+d+e+f+g+p ≤ 45 m, i ≤ 45 m
45 m ~ 90 m
note 1)
Required conditions must be satisfied
EEV kit
Model
2m
MEV-E24SA
MEV-E32SA
Remarks
1 indooor
MXD-E24K132A
MXD-E24K200A
EEV kit ~
Indoor unit
Actual pipe
length
2 indooor
Apply to products without EEV
(Wall mount & ceiling)
MXD-E32K200A
20 m or less
MXD-E24K232A
MXD-E24K300A
MXD-E32K224A
MXD-E32K300A
❋ Please refer to the EEV Kit manual.
ENGLISH-39
3 indooor
02
Actual pipe
length
(Equivalent
length)
Installing only with
Y-joint
Remarks
Refrigerant pipe installation
Note 1) Required condition
Classification
Condition
First branch joint ~
Farthest Indoor unit
45 m ≤ b+c+d+e+f+g+p ≤ 90 m: Size of the
branch pipe (b, c, d, e, f, g) must be increased by
one grade
Total length of
extended pipe
Each Y-joint ~ Each
indoor unit
Example
If the size of the main pipe (pipe that connects
between the outdoor unit ~ first branch joint) was
not increased by one grade: a+(b+c+d+e+f+g)×2
+h+i+j+k+l+m+n+p ≤ 500 m
If the size of the main pipe (pipe that connects
between the outdoor unit ~ first branch joint) was
increased by one grade: (a+b+c+d+e+f+g)×2
+h+i+j+k+l+m+n+p ≤ 500 m
h, i, j, … p ≤ 45 m
Difference between the distance of the outdoor unit to the farthest indoor
unit and nearest indoor unit ≤ 45 m
(a+b+c+d+e+f+g+p)-(a+h) ≤ 45 m
Note 2) If an outdoor unit is located in a lower position than indoor unit, maximum level difference is 40 m. If outdoor unit is
located in a higher position than indoor unit, level difference is 50 m or under.
❋ Total refrigerant amount of the system must be less than 100 kg. If total refrigerant amount of system is
over than 100 kg, the system has to be divided into smaller system, each less than 100 kg.
ENGLISH-40
H/R
Classification
Installation with Y-joint
02
INSTALLING THE PRODUCT
Installing with
MCU only
Cooling Only Indoor Unit
(Connecting Only Low Pressure Gas Pipe /
Liquid Pipe note3)
q
l
n
MCU
Installing with
MCU and Y-joint
H4
H1
o
p
h
MCU
MCU
H2
H3
Classification
Example
Installing only with
Actual pipe
a+g+j ≤ 170 m (190 m)
170 m or
MCU
length
less (190 m
(Equivalent
Installing with
or less)
a+b+h+k ≤ 170 m (190 m)
length)
MCU and Y-joint
Outdoor unit ~
Indoor unit
Installing only with
a+b+c+d+e+f+g+h+i+j ≤ 500 m
MCU
Total length 500 m or
of pipe less
Installing with a+b+c+d+e+f+g+p+h+i+j+k+m+
MCU and Y-joint
n+o+p+q ≤ 500 m
Maximum
allowable Outdoor unit~
pipe length Outdoor unit
(Module
installation)
Pipe
length
10 m or
less
r ≤ 10 m, s ≤ 10 m, t ≤ 10 m
Equivalent 13 m or
length
less
r ≤ 13 m, s ≤ 13 m, t ≤ 13 m
Height
difference
1.5 m or
less
Equivalent length
• Y-joint: 0.5 m
• Distribution header: 1 m
• MCU: 1 m
200mm
or more
H5 ≤ 1.5 m
H5
Installing only with
MCU
45 m or
MCU ~ Indoor
Pipe length
less
unit
Remarks
b+c ≤ 45 m, b+d ≤ 45 m, b+e ≤ 45 m,
f≤ 45 m, g+h ≤ 45 m, g+i ≤ 45 m,
g+j ≤ 45 m
c+d ≤ 45 m, c+e ≤ 45 m, c+f ≤ 45 m, g ≤ 45 m,
Installing with
h+i ≤ 45 m, h+j ≤ 45 m, h+k ≤ 45 m, m ≤ 45 m,
MCU and Y-joint
n ≤ 45 m, o ≤ 45 m, p ≤ 45 m
ENGLISH-41
Refrigerant pipe installation
Classification
Outdoor unit ~
Indoor unit
Maximum
allowable
height
difference
50 m /40 m
Note 1)
Indoor unit ~
Indoor unit
Indoor unit ~
Indoor unit
(in one MCU)
Example
Remarks
H1 ≤ 50 m / 40 m
40 m or less H2 ≤ 40 m
Pipe length
15 m or less H3 ≤ 15 m
But, when AM✴✴✴✴NQDEH✴ / AM✴✴✴JNV✴ is installed, H2
is 15 m or less.
30 m or less H4 ≤ 30 m
MCU ~ MCU
Installing only with
45 m or less
MCU
Maximum
First branch
allowable
joint ~ Farthest Pipe length
length after
45 ~ 90 m Installing with
Indoor unit
Note 2)
branch joint
MCU and Y-joint
Distribution kit
From distribution kit
Actual pipe length
to indoor unit
g+j ≤ 45 m
b+h+k ≤ 45 m
l+p ≤ 45 m
Required conditions must be
satisfied
Model
2 m or less
Remarks
MEV-24SA (For 1 indoor unit)
Applied to products without EEV
(wall-mounted)
Note 1) If an outdoor unit is located in a lower position than indoor unit, maximum level difference is 40 m. If outdoor unit is
located in a higher position than indoor unit, level difference is 50 m or under.
❋ Total refrigerant amount of the system must be less than 100 kg. If total refrigerant amount of system is
over than 100 kg, the system has to be divided into smaller system, each less than 100 kg.
Note 2) Required condition
Classification
Condition
Example
First branch joint ~
Farthest Indoor unit
45 m ≤ b, l+m, q ≤ 90 m: Size of the branch pipe (b,
l, m, q) must be increased by 1 grade.
Condition of total
length of extended
pipe
a+(bx2) + c + d + e + f + g + h + I + j + k + l + m +
n + o + p + q + r ≤ 500
MCU ~ Each indoor unit
c + d, c + e, c + f, g, h + I, h + j, h + k, n, o, p, r ≤ 45
q
m
l
r
MCU
n
MCU
o
p
h
MCU
MCU
Difference between the distance of the outdoor unit to the farthest indoor
unit and nearest indoor unit ≤ 45 (a+b+h+k) - (a+b+c+d) ≤ 45
Ú If the Y-joint and the MCU are installed together and the pipe length from the first branch
joint to the farthest indoor unit is 45 m to 90 m, increase by one level the sizes of the liquid pipe and low pressure gas
pipe from the first Y-joint to the MCU.
Refer to Size of the pipe between branch joints (B) on page 24.
Note 3) For indoor units to which no MCU is connected, be sure to set their options to “Cooling only indoor unit,” and then
connect them to a low pressure gas pipe and a liquid pipe. Be sure to combine the cooling only indoor units so that
their total capacity becomes 50% or less of the total capacity of all indoor units.
Note 4) In case of connecting more than one indoor unit in one MCU Port, the below indoor units can not be combined.
ERV plus (AM✴✴✴FNKDE✴✴), OAP duct(AM✴✴✴✴NEPE✴✴), Hydro Unit HE(AM✴✴✴FNBD✴✴), Hydro Unit
HT(AM✴✴✴FNBF✴✴), AHU kit (MXD-K✴✴✴AN, MCM-D✴✴✴N)
Note 5) In case of connecting two MCU ports with Y-joint, the indoor units can not be combined to more than one.
ENGLISH-42
Installing the branch joints
Branch joints must be installed ‘horizontally’ or ‘vertically’.
Horizontal installation
02
INSTALLING THE PRODUCT
Vertical installation
NOTE
• Cut the connection part of the branch joint or the provided socket, according to the diameter of the connection
pipe, before connecting them.
Over 10~15mm
CAUTION
• Install the branch joint within ±15° of the horizon or vertical line.
• Make sure that the pipe is not bent at where it is connected to the branch joint.
• Keep a minimum straight line distance of 500mm or more before connecting branch joint.
Connect to other branch joint or indoor unit
After branching
Pipe connection
Socket
Socket
After branching
Pipe
Gas side/Liquid side branch joint
Connect to
indoor unit
Before branching
Pipe (Main pipe)
❋ Install within ±15° of the horizon or vertical line.
ENGLISH-43
Minimum straight line
(over 500mm)
Refrigerant pipe installation
Installing the distribution header
1. Select the reducer that fits the diameter of the pipe.
Provided item
Socket
Pipe*
Pipe*
Socket
Pipe *
Pipe*
To indoor unit
To outdoor unit
To indoor unit
Socket
To outdoor unit
Socket
<Gas side>
<Liquid side>
❋ Pipe : Separately purchased item
2. If the number of connected indoor unit is fewer than ports on the distribution header, block the unused ports with caps.
Welding part
Connect in
order
Provided item
Connect in
order
Case of blocking the unused
distribution header ports
<Liquid side>
Case of blocking the unused
distribution header ports
<Gas side>
• Cut the provided socket, according to the diameter of the connection pipe, before connecting it.
NOTE
Over 10~15mm
CAUTION
• Connect the indoor units in order, while following the direction of the arrow shown in the illustration.
• When indoor units are connected to same distribution head, indoor unit must be connected in order of their
capacity, from largest to smallest.
ENGLISH-44
Install the distribution header horizontally.
fInstall the distribution header horizontally so that its ports do not face down.
Socket
Distribution header
Horizon line
Below ±10°
02
Horizon line
Horizon line
Below ±15°
< Liquid side >
Horizon line
Below ±15°
Horizon line
Below ±10°
< Gas side >
ENGLISH-45
INSTALLING THE PRODUCT
Pipe
(Separately purchased item)
Refrigerant pipe installation
Installing the branch joint between outdoor units
Installation of outdoor joints
Low pressure gas pipe
Branch joint between outdoor units must
not be installed in vertical position.
High pressure gas pipe
Liquid pipe
❋ For HR System, connect liquid pipe, high pressure gas pipe and low pressure gas pipe.
❋ For H/P System, connect liquid pipe and high pressure gas pipe.
Connect to other outdoor unit
❋ Use a provided liquid side socket according to the size of the selected
pipe.
Pipe
Connect to other branch joint between
outdoor units or outdoor unit
Liquid side socket
Liquid side socket
Pipe
Connect to other branch joint between outdoor units or
main pipe branch joint
<Liquid pipe, High pressure gas pipe, Low pressure gas pipe>
NOTE
• Cut the connection part of the outdoor unit connection pipe or the provided socket, according to the diameter
of the connection pipe, before connecting them.
Over 10~15 mm
ENGLISH-46
Installing the MCU
MCU specification
Model
MCU-S4NEK3N
MCU-S2NEK2N
MCU-S1NEK1N
Number of
connectable indoor
units at one port
Up to 8 units
Up to 8 units
Up to 8 units
Up to 8 units
The maximum
capacity of the
connectable indoor
units at one port
16 kW
16 kW
16 kW
16 kW
The maximum
capacity of the
connectable indoor
units
61.6 kW
61.6 kW
32.0 kW
16 kW
02
MCU-S6NEK2N
Exterior of MCU
Not included
Installing the indoor unis
Model
MCU-S6NEK2N
MCU-S4NEK3N
MCU-S2NEK2N
Example installing
(Each port
connection)
MCU series connection
Example installing
(MCU series
connection)
MCU
MCU
ENGLISH-47
MCU-S1NEK1N
INSTALLING THE PRODUCT
Internal EEV
Electrical wiring work
Model
MCU-S6NEK2N
MCU-S4NEK3N
MCU-S2NEK2N
Under 16.0 kW indoor unit : Don’t use Y-connector
16.0 kW ~ 28.0 kW indoor unit : Use Y-connector at the Gas & Liquid line
In case of using Y-connector, it is only connectable for port combination at below
Connectable port combination for Y-connector : A + B port, C + D port, E + F port
Non-connectable port combination for Y-connector : B + C port, D + E port, noncontinuous port
Set Dip Switch option for using Y-connector
Installing indoor units
S/W Option
S/W Option
S/W Option
S/W Option
ON
ON
ON
ON
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
Default
Combination of
A+B port
Combination of
C+D port
Combination of
E+F port
MCU-S1NEK1N
This unit is only
connectable for one
port under 16 Kw
This unit is impossible
to connect MCU to
MCU in series.
In case of MCU connection in series, the maximum capacity of indoor units in MCU
series connection is 61.6 kW
How to connect the pipes
70 mm
Protect with wet towel
when welding
70 mm
Pipe connection from outdoor unit
Default installing direction.
Low pressure gas pipe conection (welding)
High pressure gas pipe connection (welding)
Liquid pipe connection (welding)
Pipe connection to indoor unit
Liquid pipe (welding)
Gas pipe (welding)
❋ When installing MCU, use the pattern sheet for installation that is provided with the product.
❋ When welding the gas pipes, protect the product with the flame-proof sheet.
❋ When connecting the MCU with outdoor units, default direction is set in the MCU.
If installing opposite direction, weld the enclosed copper cap in each high pressure, low pressure and liquid pipes.
ENGLISH-48
Specification of the circuit breaker and power cable
Single
MCA
MFA
AM080FXWANR
16.1
20.0
10
AM100FXWANR
16.1
20.0
12
AM120FXWANR
20.0
25.0
20
AM200FXWANR
31.8
40.0
30
AM300KXWANR
48.1
63.1
Module (Premium energy efficiency type)
Module table
Capacity
(HP)
Model
16
AM160FXWANR2
2
18
AM180FXWANR2
1
22
AM220FXWANR2
24
AM240FXWANR2
26
AM260FXWANR2
2
28
AM280FXWANR2
1
30
AM300FXWANR2
32
AM320FXWANR2
34
AM340FXWANR2
36
AM360FXWANR2
2
38
AM380FXWANR2
1
40
AM400FXWANR2
42
AM420FXWANR2
44
AM440FXWANR2
48
AM480FXWANR2
50
AM500FXWANR2
52
AM520FXWANR2
60
AM600FXWANR2
AM080FXWANR
AM100FXWANR
MCA
MFA
32.2
40.0
32.2
40.0
1
36.1
40.0
2
40.0
50.0
48.3
63.0
1
47.9
63.0
1
47.9
63.0
1
51.8
63.0
56.1
63.0
1
64.0
75.0
1
64.0
75.0
2
63.6
75.0
1
1
67.9
75.0
2
1
71.8
80.0
AM120FXWANR
AM200FXWANR
1
1
1
1
1
1
2
1
1
1
1
1
ENGLISH-49
AM300KXWANR
2
79.7
90.0
2
79.7
90.0
2
83.6
100.0
3
95.4
125.0
INSTALLING THE PRODUCT
Model
8
02
Capacity (HP)
Electrical wiring work
Module (Premium compact type)
Capacity
(HP)
Model
AM080FXWANR
38
AM380KXWANR1
1
40
AM400KXWANR1
42
AM420KXWANR1
46
AM460KXWANR1
2
48
AM480KXWANR1
1
50
AM500KXWANR1
52
AM520KXWANR1
54
AM540KXWANR1
58
AM580KXWANR1
60
AM600KXWANR1
62
AM620KXWANR1
68
AM680KXWANR1
70
AM700KXWANR1
80
AM800KXWANR1
90
AM900KXWANR1
AM100FXWANR
AM120FXWANR
AM200FXWANR
1
1
1
1
1
1
2
1
1
1
1
1
1
1
AM300KXWANR
MCA
MFA
1
64.1
75
1
64.1
75
1
68
75
1
80.2
90
1
80.2
90
1
79.8
90
1
84.1
100
1
88
100
1
95.9
125
2
96
125
1
99.8
125
2
112.1
125
2
112.1
125
2
127.8
150
3
144
175
❋ Power Supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed flexible
cord. (Code designation IEC:60245 IEC 66 / CENELEC: H07RN-F)
❋ When installing outdoor units in module, select the power supply cable according to the sum of outdoor unit capacity.
(Refer to the table for each model)
ex) Outdoor unit installation (AM100FXW✴ + AM120FXW✴)
AM100FXW✴
AM120FXW✴
ELCB
①
or
MCCB+
ELB
①
6.0 mm2
②
2.5 mm2
②
ENGLISH-50
NOTE
CAUTION
Ssc [MVA]
3.9
AM100FXWA✴✴
3.9
AM120FXWA✴✴
4.8
AM200FXWA✴✴
7.7
AM300KXWA✴✴
11.5]
Caution for electrical work
• You must install ELCB or MCCB + ELB
- ELCB: Earth leakage breaker
- MCCB: Molded case circuit breaker
- ELB: Earth leakage breaker
• Do not operate the outdoor unit before completing the refrigerant pipe work.
• Do not disconnect or change the cable inside the product. It may cause damage to the product.
• Specification of the power cable is selected based on following installation condition; culvert installation/
ambient temperature 30 °C/ single multi conductor cables. If the condition is different from the ones stated,
please consult an electrical installation expert and re-select the power cable.
- If the length of power cable exceed 50m, re-select the power cable considering the voltage drop.
• Use a power cable made out of incombustible material for the insulator (inner cover) and the sheath (outer cover).
• Do not use the power cable with the core wire exposed due to insulator damage occurred during removal of the
sheath. When the core wire is exposed, it may cause fire.
Exposed wire core
Insulator (inner cover)
Sheath (outer cover)
<The example of exposed core wire>
ENGLISH-51
INSTALLING THE PRODUCT
Model
AM080FXWA✴✴
02
• This device is intended for the connection to a power supply system with a maximum permissible system
impedance shown in the table (on the left page) at the interface point (power service box) of the user’s supply.
• The user must ensure that this device is connected only to a power supply system which fulfills the
requirement above. If necessary, the user can ask the public power supply company for the system impedance
at the interface point.
• This equipment complies with IEC 61000-3-12 provided that the short-circuit power Ssc is greater than or
equal to Ssc(*2) at the interface point between the user’s supply and the public system. It is the responsibility
of the installer or user of the equipment to ensure, by consultation with the distribution network operator if
necessary, that the equipment is connected only to a supply with a short-circuit power Ssc greater than or
equal to Ssc(*2).
[Ssc (*2)]
Electrical wiring work
Power and communication cable configuration
fMain power and the ground cable must be withdrawn through the knock-out hole on the bottom-right or right side of
the cabinet.
fWithdraw the communication cable from the designated knock-out hole on the bottom-right side of the front part.
fInstall the power and communication cable using separate cable protection tube.
fFix a protection tube to the knock-out hole on the outdoor unit by using a CD connector or bushing. Make sure to use
insulating bushing.
fMake sure that power and communication cables do not block the front panel.
or
ELCB
MCCB+
ELB
Communication cable between
outdoor units
Power cable
Specification of the protection tube
Name
Temper grade
Applicable conditions
Flexible PVC conduit
PVC
When the protection tube is installed indoor and not exposed
to outside, because it is embedded in concrete structure
Class 1 flexible conduit
Galvanized steel sheet
Class 2 flexible conduit
Galvanized steel sheet and
Soft PVC compound
CAUTION
When the protection tube is installed indoor but exposed to
outside so there are risk of damage to the protection tube
When the protection tube is installed outdoor and exposed to
outside so there are risk of damage to the protection tube and
extra waterproof is needed
Caution for perforating the knock-out hole
• Perforate a knock-out hole by punching it with a hammer.
• After perforating the knock-out hole, apply rust resisting paint around the hole.
• When you need to pass the cables through the knock-out hole, remove burrs on the hole and protection the
cable with a protection tape or bushing etc.
ENGLISH-52
Power wiring diagram
Supplying 3 phase 4 wires (380-415 V~)
3 phase 4 wires
(380 ~ 415 V)
MCCB+
ELB
or
ELCB
Sub outdoor
unit 2
MCCB+
ELB
or
ELCB
Communication
cable (Outdoor unit
~ Outdoor unit)
Main outdoor unit
Sub outdoor unit
Main outdoor unit
Sub outdoor unit
Communication
cable (Outdoor unit ~
Indoor unit )
Communication
cable (Outdoor unit ~
Outdoor unit )
Communication
cable (Outdoor unit
~ Indoor unit)
Grounding Grounding Grounding
Wired remote Wired remote Wired remote
controller
controller
controller
fConnect a power cable of the outdoor unit after checking that R-S-T-N (3 phase 4 wire) is properly connected. (If the 380415 V power is supplied to the N phase, PCB and other electrical part will be damaged.)
fCommunication cable between indoor and outdoor units and communication cable between outdoor units has no
polarity.
fArrange the cables with a cable tie.
❋ ELCB and ELB must be installed since there is risk of electric shock or fire when they are not installed.
ENGLISH-53
INSTALLING THE PRODUCT
Single phase 2 wires
(220 -240 V)
Sub outdoor
unit 1
02
Main outdoor
unit
Electrical wiring work
Selecting solderless ring terminal
fSelect a solderless ring terminal for a power cable according to the nominal dimensions for cable.
fApply insulation coating to the connection part of the solderless ring terminal and the power cable.
Silver solder
Nominal dimensions for cable (mm2)
Nominal dimensions for screw (mm)
B
D
d1
Standard dimension (mm)
25
35
50
70
4
8
8
8
8
8
8
8
8
8
15
15
16
12
16.5
16
22
22
24
±0.2
±0.2
±0.3
±0.4
±0.2
±0.3
±0.3
5.6
7.1
9
11.5
13.3
13.5
17.5
Allowance (mm)
+0.3
-0.2
+0.3
-0.2
+0.3
-0.2
+0.5
-0.2
+0.5
-0.2
+0.5
-0.2
+0.5
-0.4
Standard dimension (mm)
3.4
4.5
5.8
7.7
9.4
11.4
13.3
Allowance (mm)
±0.2
±0.2
±0.2
±0.2
±0.2
±0.3
±0.4
7.9
9.5
17.5
18.5
9
13
14
20
Min. (mm)
Min. (mm)
t
16
Standard dimension (mm)
F
d2
10
9.5
Allowance (mm)
E
L
4/6
6
5
9
11
15
12.5
13
13
38
43
50
51
8.4
8.4
8.4
8.4
8.4
Max. (mm)
20
28.5
30
33
Standard dimension (mm)
4.3
8.4
8.4
8.4
Allowance (mm)
+ 0.2
0
+ 0.4
0
+ 0.4
0
+ 0.4
0
+ 0.4
0
+ 0.4
0
+ 0.4
0
+ 0.4
0
1.15
1.45
1.7
1.8
1.8
2.0
Min. (mm)
0.9
ENGLISH-54
34
13
8.4
Connecting the power terminal
Communication cable
(Indoor/outdoor unit)
R
S
T
N
Communication /
External contact signal
MCCB+
ELB
or
ELCB
Grounding
Lock nut (field supply)
Conduit mounting plate
Screw
CAUTION
Sub unit 3 phase (380-415 V)
(Knock out hole)
Protection tube for
power cable
Conduit (field supply)
Tightening torque for terminal (N∙m)
M4
1.2~1.8
Single phase (220-240 V) power cable
M8
5.5~7.3
3 phase (380-415 V) power cable
• When removing the outer sheath of the power supply cable, be careful not to scratch the inner sheath of the
cable.
• Make sure that more than 20mm of the outer sheath of the indoor unit power and communication cable are
inside the electrical component box.
• Install the communication cable separately from power cable and other communication cables.
ENGLISH-55
INSTALLING THE PRODUCT
3 phase
380-415 V
02
fConnect the cables to the terminal board with solderless ring terminals.
fProperly connect the cables by using certified and rated cables and make sure to fix them properly so that external force
is not applied to the terminal.
fUse a driver and wrench that can apply the rated torque when tightening the screws on the terminal board.
fTighten the terminal screws by complying rated torque value. If the terminal is loose, fire can occur due to arc heat
generation and if the terminal is too tight, terminal board could get damaged.
Electrical wiring work
Examples of how to use the cable striper
<Cable striper>
1. Adjust the blade position by coin. (Controller is at the bottom side of the tool.) Fix the blade
position according to the outer sheath thickness of the power cable.
2. Fix the power cable and tool by using the hook at the top side of the tool.
3. Cut out the outer sheath of the power cable by revolving the tool in the direction of the arrow,
two or three times.
4. At this situation, cut out the outer sheath of the power cable by moving the tool toward the
direction of the arrow.
5. Slightly bend the wire and pull out the cut part of the outer sheath.
Fixing the power cable
CAUTION
• Do not let the power cable come into contact with the pipes inside the outdoor unit. If the power supply cable
touches the pipes, the vibration of the compressor is transferred to the pipes and can damage the power supply
cables or pipes, creating the danger of fire or explosion.
• Make sure that the place where the sheath of power supply cable is removed is inside the power supply box. If it
is impossible, you should connect the protection tube for power cable to the power supply box.
• After arranging the power cable into the power supply box, tighten the cover.
Connect the ring terminal of 3 phase cable
1. Cut the power cable to an appropriate length and connect it with the solderless terminal.
2. After connecting the power cable to the terminal as seen in the illustration, fix it with cable tie.
3. Fix the housing, which has an insulator, to the terminal board.
ENGLISH-56
Fixing the ground cable
fConnect the ground cable to the grounding hole inside the power supply box.
Withdrawing the power cable
R2
R1
R1
OF2
OF2
OF1
Solution device terminal
Communication cable terminal
(Outdoor unit ~ Outdoor unit)
F1
F2
OF1
R2
F2
F1
Communication cable terminal
(Outdoor unit ~ Indoor unit)
❋ When connecting the communication cable, use a wire holder to fix it.
fLocation of the interface module
❋ To connect old communication type upper level controller, interface module
must be installed. For detail instruction of installation, refer to the installation
manual of corresponding interface module.
ENGLISH-57
INSTALLING THE PRODUCT
Installing the Solution device
fWhen the number of indoor units installed with the outdoor unit is 16 or less
02
fThrough the cable withdrawing hole, penetrate the knock out hole on the side and connect the protection tube (for
power cable) up to the power box.
❋ When penetrating knock out hole, be careful not to damage the heat exchanger pipe or temperature sensor.
❋ Be sure that the power supply cable is not damaged by burr on the knock-out hole.
Electrical wiring work
Connecting the MCU (MCU-S6NEE1N, MCU-S4NEE1N, MCU-S4NEE2N)
Example 1
ELB
Indoor unit
Indoor unit
MCCB
Outdoor
unit
220-240 V~
Example 2
ELB
Indoor unit
Indoor unit
Indoor unit
Outdoor
unit
MCCB
220-240 V~
f Power must be supplied to the MCU separately from the outdoor unit.
f Connect the communication cable of the outdoor unit (F1, F2) to the communication cable of the MCU (F1, F2)
• Power cable connection should be done with the solderless ring terminal.
CAUTION
Indoor unit
MCU
MCU
Indoor unit
Indoor unit
MCU
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
MCU
Indoor unit
• When installing the MCU, communication cable can be connected as shown above.
ENGLISH-58
Indoor unit
Indoor unit
Connecting the MCU (MCU-S6NEK2N, MCU-S4NEK3N, MCU-S2NEK2N, MCU-S1NEK1N)
Example
ELB
Indoor unit
ELB
MCCB
Outdoor unit
220-240 V~
f Power must be supplied to the MCU separately from the outdoor unit.
f Connect the communication cable of the outdoor unit (F1, F2) to the communication cable of the MCU (F1, F2)
• Power cable connection should be done with the solderless ring terminal.
CAUTION
Indoor unit
MCU
Indoor unit
Indoor unit
Indoor unit
MCU
Indoor unit
Indoor unit
• When installing the MCU, communication cable can be connected as shown above.
ENGLISH-59
INSTALLING THE PRODUCT
Indoor unit
02
MCCB
Electrical wiring work
Grounding work
Grounding must be done by a qualified installer for your safety.
Grounding the power cable
fThe standard of grounding may vary according to the rated voltage and installation place of the air conditioner.
fGround the power cable according to the following table.
Power condition
Installation place
Voltage to ground is lower than 150V
Voltage to ground is over 150V
Must perform the grounding work 3. Note 1)
(Including the case where earth leakage breaker is installed)
High humidity
Average humidity
Perform grounding work 3. Note 1)
Low humidity
Perform grounding work 3, if possible, for
your safety. Note 2)
Must perform the grounding work 3. Note 1)
(Including the case where earth leakage
breaker is installed)
Note 1) About grounding work 3.
• Grounding work must be done by an expert (with qualification).
• Check if the grounding resistance is lower than 100Ω. When installing a earth leakage breaker (that can cut the electric
circuit within 0.5 second in case of a short circuit), allowable grounding resistance should be 30~500Ω.
Note 2) Grounding at dry place
• The grounding resistance should be lower than 100Ω. Even in worst case, grounding resistance should be lower than
250Ω.
Performing the grounding work
fUse a rated grounding cable by referring to the specification of the electric cable for the outdoor unit.
❋ When using the exclusive grounding terminal (When
the grounding terminal is already built on the house)
❋ When using grounding of the switch board
Exclusive grounding
terminal
ENGLISH-60
Distributing board
Air tightness test and vacuum drying
Air tightness test
02
fUse tools for R-410A to prevent the inflow of foreign substances and resist against the internal pressure.
fDo not remove the core of filling port.
fUse Nitrogen gas for air tightness test as shown in the illustration.
INSTALLING THE PRODUCT
Manifold gage
Filling port
Liquid pipe
High pressure gas pipe
Low pressure gas pipe
Nitrogen gas
Apply pressure to the liquid side pipe and gas side pipe
(when installing outdoor units in module) with Nitrogen
gas at 4.1MPa.
If you apply pressure at more than 4.1MPa, pipes may get
damaged. Apply pressure with pressure regulator and pay
attention to the pressure of the nitrogen.
Keep it for minimum 24 hours to check if pressure drops.
After applying Nitrogen gas, check there's any change of
pressure, using a pressure regulator.
If the pressure drops, check for gas leakage.
If the pressure is changed, apply soap water to check for leakage
and check the pressure of the nitrogen gas again.
Maintain 1.0MPa of the pressure before performing
vacuum drying and check for further gas leakage.
After checking the first gas leakage, maintain 1.0MPa to check for
further gas leakage.
CAUTION
• Perform a Nitrogen gas leak test with the service valve of the outdoor unit closed.
• When charging the nitrogen gas, charge it from the both (high•low pressure) sides.
• If the pipe is filled in a short time with a highly excessive pressure of Nitrogen gas, the pipes may get damaged.
Make sure to use a regulator to prevent the high pressure Nitrogen gas, over 4.1MPa, from entering into the pipe.
ENGLISH-61
Air tightness test and vacuum drying
Vacuum drying pipes and indoor units
fUse tools for R-410A to prevent the inflow of foreign substances and resist against the internal pressure.
fUse vacuum pump that allows vacuuming under -100.7kPa (5 Torr).
fUse the vacuum pump with the check valve to prevent pump oil from flowing backward while the vacuum pump is
stopped.
fCompletely close the liquid·gas side service valve of the outdoor unit.
Connect the manifold gauge to the liquid side pipe
and gas side pipe (when installing outdoor units in
module).
When installing outdoor units in module, connect the manifold gauge to
liquid side pipe and the gas side pipe.
Perform vacuum drying of the liquid side pipe and
gas side pipe (when installing outdoor units in
module) using a vacuum pump.
Make sure that check valve is installed to prevent pump oil from flowing
into the pipe.
While the vacuum gauge pressure is less than
-100.7 kPa (5 Torr), perform the vacuum drying for
more than 1 hour and close the valve.
Vacuum pressure must be checked with the vacuum gauge.
After vacuum pump stops, check whether the
pressure is maintained within -100.7 kPa (5 Torr) for
an hour.
Check for gas leakage
Vacuum destruction
• Apply nitrogen gas to the pipe at pressure
of 0.05 Mpa.
Yes
Over -100.7 kPa (5 Torr)
No
Charge additional refrigerant to the pipe
Perform vacuum drying again
No
Yes
Pressure increase
❋ If the pressure rises in an hour, either water is remaining inside the pipe or there is a leakage.
❋ When the ambient temperature of vacuuming pipe is low (less than 0 °C), moisture might remain within the pipe.
Therefore, pay special attention to the pipe sealing in the winter.
ENGLISH-62
Pipe insulation
Insulating the refrigerant pipes and branch joints
Unit
Standard
3
Density
g/cm
0.048~0.096
Dimensional change rate by heat
%
Below -5
Absorption rate
3
g/cm
Below 0.005
Thermal conduction rate
W/m·K
Below 0.037
2
Moisture transpiration factor
ng/(m ·s·Pa)
Below 15
Moisture transpiration grade
g/(m2·24h)
Below 15
Formaldehyde dispersion
mg/L
There should be none
Oxygen rate
%
Over 25
Selecting the refrigerant pipe insulator
fInsulate the gas pipe and liquid pipe by referring to the thickness of insulator for each pipe size.
fThe standard condition is; temperature at 30°C, humidity less than 85%. If case if the humidity is higher, you must
increase the size by one grade as stated in below table.
Insulator (Cooling·Heating)
Pipe
Diameter of
refrigerant pipe
General
[30 °C, 85 %]
High humidity
[30 °C, over 85 %]
Remarks
EPDM, NBR
Liquid pipe
Gas pipe
Ø 6.35~Ø 9.52
9 mm
Ø 12.7~Ø 50.80
13 mm
Ø 6.35
13 mm
19 mm
Ø 9.52 ~ Ø 25.40
Ø 28.58 ~ Ø 44.45
Ø 50.80
19 mm
25 mm
25 mm
Heat resisting
temperature over 120°C
32 mm
38 mm
❋ When installing insulation in places and conditions below, use the same insulation that is used for high humidity
conditions.
- High humidity places such as shoreline, hot spring, near lake or river, and ridge (when the part of the building is
covered by earth and sand.)
- Restaurant ceiling, sauna, swimming pool etc.
- The ceiling frequently exposed to moisture and cooling is not covered. (e.g. The pipe installed at a corridor of a
dormitory and studio or near an exit that opens and closes frequently.”)
- The place where the pipe is installed is highly humid due to the lack of ventilation system.
ENGLISH-63
INSTALLING THE PRODUCT
Test item
02
fCheck for gas leakage before completing (the hose and pipe insulation) and if there is no sign of leakage, make sure to
insulate the pipes and hoses.
fUse EPDM material insulator that meets the following conditions.
Pipe insulation
Insulate the refrigerant pipe
fMake sure to insulate the refrigerant pipe, branch joint, distribution header, and the connection part of the pipes.
fIf you insulate the pipes, condensed water will not fall from the pipes.
fCheck if there are any cracks on the insulation at the bent part of the pipe.
Insulator
Clamp
Insulator
Indoor unit
Insulator
Gas side
pipe
Install the insulation to be
overlapped
Fix securely without any gap.
Liquid side pipe
Insulating pipes
Insulating pipes connected behind the EEV kit
• The insulation of the gas and liquid pipes can be in contact
with each other but they should not press excessively against
each other.
• When the gas side and liquid side pipes are contacting each
other, increase the thickness of the insulation by one grade.
• When installing the gas side and liquid side pipes, leave at
least 10mm of space.
• When the gas side and liquid side pipes are contacting each
other, increase the thickness of the insulation by one grade.
10 mm
10 mm
10 mm
Insulator
Insulator
Liquid pipe
Gas pipe
Gas pipe
CAUTION
• Install the insulation without any gaps or cracks and
use adhesive on the connection part of it to prevent
moisture from entering.
• Bind the refrigerant pipe with insulation tape if it
is exposed to outside sunlight. (When binding the
pipe with finishing tape, be careful not to reduce the
thickness of the insulation.)
• Install the refrigerant pipe respecting that the
insulation does not get thinner on the bent part or
hanger of pipe.
• When the thickness of insulation is reduced,
reinforce the reduced thickness with additional
insulation.
Liquid pipe
Hanger
Additional Insulator
ENGLISH-64
a
ax3
Insulator for refrigerant
pipe
Insulate the distribution header
fFix the distribution header with a cable tie and cover the connected part.
fInsulate the distribution header and the welded part and wrap the connected part with an
adhesive insulation tape to prevent dew formation.
Insulate after welding a stopper
Adhesive insulation tape
fFix the distribution header with a hanger after insulating it.
Insulating the branch joint
fTightly attach the insulator, provided with the branch joint, to the separately purchased insulator. Wrap the connected
part with an insulator (separately purchased item) that has thickness of at least 10mm.
fUse an insulator that resist heat up to 120°C. Wrap the branch joint with an insulation that has thickness of at least 10mm.
Pipe insulator
(Separately
purchased item)
Insulation tape (Separately purchased item)
Provided
Insulator
Fix securely without
any gap.
Fix securely without any gap.
Pipe
Pipe insulator (Separately purchased item)
Pipe insulator
Branch
(Separately
joint
purchased item)
Thickness of the insulator (Separately purchased
item) should be thicker than 10mm.
150mm
ENGLISH-65
❋ Attach the adhesive insulation
tape to the pipe, as shown in the
picture, after insulating the pipe.
INSTALLING THE PRODUCT
Insulate the refrigerant
pipe
Insulate the
distribution
header
02
Adhesive insulation tape
Insulation
Pipe insulation
Insulating the pipe located inside of the outdoor unit
fWith a pipe insulator, insulate the pipe up to whole service valve located inside of the outdoor unit.
fSeal the gap between the outdoor unit pipe and the insulator. Rainwater and dewdrops may soak through the gap
between the pipe and the insulation of the outdoor unit installed on the outside.
fSeparate the cover of the pipe and close it after insulation work. Only remove a knock-out hole cover where the pipe will
be installed. If the knock-out hole is open unnecessarily, it must be closed. If not, small animals such as squirrels and rats
may get into the unit through the hole and the unit may be damaged.
H/P
HR
ENGLISH-66
Refrigerant collection
WARNING
1. Connect a refrigerant container to an outdoor unit as shown in the illustration and operate about 50% of the indoor units
in cooling mode.
2. When the pressure on the high pressure side is over 2.94 Mpa, decrease the number of operating indoor unit.
3. Open the manifold gauge (that is connected to the liquid side service valve) and the valve on the refrigerant container to
collect refrigerant.
Manifold gage
Filling port
Liquid pipe (Flare installation)
High pressure gas pipe
Low pressure gas pipe
Refrigerant
container
Scale
CAUTION
• Refrigerant must be collected prior to pump down operation.
• Make sure that amount of collecting refrigerant does not exceed capacity of the refrigerant container.
• Refer to service manual for detail instruction.
ENGLISH-67
INSTALLING THE PRODUCT
Collecting refrigerant (to a refrigerant container)
You cannot collect the entire refrigerant in the system at once during pump down operation. Therefore you must collect
additional refrigerant into the empty refrigerant container prior to pump down operation.
02
• After installing the product, be sure to perform leak tests on the piping connections. Before pumping down
refrigerant to inspect or relocate the outdoor unit, be sure to stop the compressor and then remove the
connected pipes.
- Do not operate the compressor while a valve is open due to refrigerant leakage from a pipe or an unconnected
or incorrectly connected pipe. Failure to do so may cause air to flow into the compressor and too a high
pressure to develop inside the refrigerant circuit, leading to an explosion or product malfunction.
Charging refrigerant
fThe R-410A refrigerant is blended refrigerant. Add only liquid refrigerant.
fMeasure the quantity of the refrigerant according to the length of the liquid side pipe. Add quantity of the refrigerant
using a scale.
Important information regulation regarding the refrigerant used
This product contains fluorinated greenhouse gases. Do not vent gases into the atmosphere.
CAUTION
• Inform user if system contains 5 tCO2e or more of fluorinated greenhouse gases. In this case, it has to be checked
for leakage at least once every 12 months, according to regulation n°517/2014. This activity has to be covered
by qualified personnel only. In case situation above (5 tCO2e or more of R-410A), installer (or recognized person
which has responsibility for final check) has to provide a maintenance book, with all the information recorded
according to REGULATION (EU) No 517/2014 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 16 April
2014 on fluorinated greenhouse gases.
Please fill in the following with indelible ink on the refrigerant charge label supplied with this product and on
this manual.
f① : The factory refrigerant charge of the product.
f② : The additional refrigerant amount charged in the field.
f①+② The total refrigerant charge.
Unit
Indoor unit
kg
tCO2e
①, a
②, b
①+②, c
②
d
①
Outdoor
unit
Refrigerant type
GWP value
R-410A
2088
• GWP=Global Warming Potential
• Calculating tCO2e : kg x GWP / 1000
NOTE
CAUTION
a Factory refrigerant charge of the product: see unit name plate.
b Additional refrigerant amount charged in the field. (Refer to the above information for the quantity of
refrigerant replenishment.)
c Total refrigerant charge.
d Refrigerant cylinder and manifold for charging.
• The filled-out label must be adhered in the proximity of the product charging port.
(ex. onto the inside of the stop valve cover.)
ENGLISH-68
Single installation
fOpen the manifold gauge valve connected to the liquid side service valve and add the liquid refrigerant.
fIf you cannot add the whole quantity of the refrigerant while the outdoor unit is stopped, open the gas side and liquid
side service valve. Then, add remaining refrigerant by pressing the refrigerant adding button of the outdoor PCB.
Outdoor unit
Liquid side
02
Gas side
Service valve
Manifold gage
Scale
Vacuum port
Module installation
fOpen the manifold gauge valve connected to the liquid side service valve and add the liquid refrigerant.
fIf you cannot add the whole quantity of the refrigerant while the outdoor unit is stopped, open the gas side and liquid
side service valve. Then, add remaining refrigerant by pressing the refrigerant adding button of the outdoor PCB.
fIf you use the refrigerant charging function from the PCB, outdoor unit will operate and charge the refrigerant. At this
time, you must use gas side manifold gauge for cooling operation and use charging port for heating at the manifold
gauge for heating operation.
Gas side
Outdoor unit
Liquid side
Outdoor unit
R-410A (Inject
liquid refrigerant)
Liquid side pipe
Service valve
Manifold gage
Scale
Vacuum port
CAUTION
• Open the gas side and liquid side service valve completely after charging the refrigerant. (If you operate the air
conditioner with the service valve closed, the important parts may be damaged.)
• Put on safety equipment when charging refrigerant.
• Do not charge the refrigerant when you adjust or control other product such as indoor units or EEV kits.
• If you charge the refrigerant with the front cabinet open, be very careful with the fan on the top of the product
to prevent personal injury.
• When the ambient temperature is low in winter time, do not heat the refrigerant container to speed up the
charging process. There is risk of explosion.
• Beware for possibility of refrigerant leakage when you connect the manifold gauge to the charging port for
heating.
• Close the valve of the refrigerant container immediately after charging the refrigerant. If not, there might be a
change in entire amount of refrigerant.
ENGLISH-69
INSTALLING THE PRODUCT
R-410A (Inject
liquid refrigerant)
Charging refrigerant
Using service valve for gas
fAfter charging the refrigerant, close all caps as shown in the illustration.
fTightening torque for the cap of refrigerant charging port 10~12 N·m
fTightening torque for the cap of control part 20~25 N·m
fOpening/closing torque for the valve
- Over Ø 19.05 : 10.0 N·m
Cap for the control part
Cap for the refrigerant
charging port
Basic segment display
Step
At initial power input
Display content
Checking segment display
While setting communication
between indoor and outdoor unit
(Addressing)
Number of connected indoor units
After communication setting
(usual occasion)
Transmit/Reception address
❋ I/U : Indoor unit
ENGLISH-70
Display
SEG 1
SEG 2
SEG 3
“8”
“8”
“8”
“8”
SEG 1
SEG 2
SEG 3
SEG 4
“A”
“d”
SEG 1
SEG 2
I/U: “A”
MCU: “C”
I/U: “0”
MCU: “1”
SEG 4
Number of communicated
units
❋ Refer to "View Mode"
for communication
address
SEG 3
SEG 4
Reception address (in
decimal number)
Setting outdoor unit option switch and key function
Setting outdoor unit option switches : A TYPE
02
K21 K22
BCD
3456
EF012
789A
K21 K22
TEN
ONE
MCU
❋ If you install HR products, you must match the address between the MCU and the indoor unit.
Switch
Setting
SW51 /
SW52
K5
Remarks
Setting total number of installed indoor unit
SW51: Tens digit, SW52: Units digit
Setting can be done from the main outdoor unit
only (sub unit: setting is unnecessary)
Ex) When 12 indoor units are installed SW51: 1,
SW52: 2
On
H/P(Heat Pump) System
Connect Liguid pipe and High pressure gas pipe
Off
HR(Heat Recovery) System
Close outdoor unit's heatpump valve
On
Enable maximum capacity restriction for cooling
operation
Restrict excessive capacity increase when
operating indoor units with small capacity
Off
Disable maximum capacity restriction for cooling
operation
K6
SW53
-
K7
K8
On
On
Outdoor unit address: No. 1
Main unit
On
Off
Outdoor unit address: No. 2
Sub unit 1
Off
On
Outdoor unit address: No. 3
Sub unit 2
Off
Off
Outdoor unit address: No. 4
Sub unit 3
Setting total number of connected MCU
Setting can be done from main unit only
Ex) When 3 MCUs are installed SW57: 3, SW52: 2
SW57
SW58
Function
Selecting outdoor unit address
K21
K22
ON
ON
Selecting type of circulating water
ON
Anti-freeze circulation (freezing point of anti-freeze
Minimum temperature of entering water -5 °C
OFF
must be below -8 °C)
OFF
ON
Water circulation
-
Anti-freeze circulation (freezing point of anti-freeze
Minimum temperature of entering water -10 °C
must be below -15 °C)
❋ Maintain appropriate concentration level of anti-freeze according to SW58 switch setting. (Refer to 'Cooling water
management' on page 103)
ENGLISH-71
INSTALLING THE PRODUCT
SW58
Setting outdoor unit option switch and key function
Setting outdoor unit option switches : B TYPE
fSetting outdoor install option
Step
Button
Display
Description
Outdoor unit address
Outdoor unit
Step1
display
Press (K1+K2) for
2 seconds
K4 x 1 time
Step2
K4 x 2 times
K4 x 3 times
Step3
Step4
Step6
Step7
Start
Setting required
Unit address
for module
combination
00: Main unit
01: Sub1 unit
02: Sub2 unit
03: Sub3 unit
If it is main unit, go to step4.
Otherwise, press K2 button for 2 seconds to save & exit
(system will be reset)
Quantity of indoor units
Press K1
K2 x n times
Step5
Note
X
X
Ready to set
Ex) 03: 3 units
64: 64 units
Step8
Ex) 03: 3 units
16: 16 units
Ones digit (0 ~ 9)
K4 x n times
X
* K4: Press for 2 seconds - automatic detection of MCUs' quantity
00 : Heat pump
Step9
Press K1
Ready to set
system
Step10
Press K4
Ones digit(0~1) 01 : Heat recovery
system
Step11
K2: long
Save
Restart
* Press K1 for 2 seconds to exit without save regardless of setting step.
ENGLISH-72
No
Quantity of indoor units
Tens digit (0 ~ 6)
Tens digit (0 ~ 1)
Main unit?
Yes
Ones digit (0 ~ 9)
K4 x n times
X
* K4: Press for 2 seconds - automatic detection of indoor units’ quantity
If it is heat recovery model, go to step 7.
Otherwise, press K2 button for 2 seconds to save & exit
(system will be reset)
Quantity of MCUs * Heat recovery model only
Press K1
Ready to set
K2 x n times
Outdoor unit address
Heat recovery?
Yes
Quantity of MCUs
Save
No
Setting outdoor unit key function
K1
K2
K3
K4
02
< B type >
Installing and setting the option with tact switch and explanation of the functions
Setting the option
1. Press and hold K2 to enter the option setting. (Only available when the operation is stopped)
- If you enter the option setting, display will show the following. (If you have set the 'Emergency operation for
compressor malfunction', 1 or 2 will be displayed on Seg 4.)
- Seg 1 and Seg 2 will display the number for selected option.
- Seg 3 and Seg 4 will display the number for set value of the selected option.
2. If you have entered option setting, you can shortly press the K1 switch to adjust the value of the Seg 1, Seg 2 and select
the desired option. (Refer to pages 74~77 for the Seg number of the function for each option)
Example)
Z
3. If you have selected desired option, you can shortly press the K2 switch to adjust the value of the Seg 3, Seg 4 and change
the function for the selected option. (Refer to pages 74~77 for the Seg number of the function for each option)
Example)
Z
ENGLISH-73
INSTALLING THE PRODUCT
< A type >
Setting outdoor unit option switch and key function
4. After selecting the function for options, press and hold the K2 switch for 2 seconds. Edited value of the option will be
saved when entire segments blinks and tracking mode begins.
• Edited option will not be saved if you do not end the option setting as explained in above instruction.
CAUTION
❋ While you are setting the option, you may press and hold the K1 button to reset the value to previous setting.
❋ If you want to restore the setting to factory default, press and hold the K4 button while you are in the option setting
mode.
- If you press and hold the K4 button, setting will be restored to factory default but it doesn't mean that restored setting
is saved. Press and hold the K2 button. When the segments shows that tracking mode is in progress, setting will be
saved.
Optional item
Emergency
operation for
compressor
malfunction
Cooling capacity
correction
Capcity correction
for heating
Input unit SEG1 SEG2 SEG3 SEG4
Individual
Main
Main
0
0
0
0
1
2
Function of the option
0
0
Disabled (Factory default)
0
1
Set compressor 1 as
malfunction state
0
2
Set compressor 2 as
malfunction state
0
0
7-9 (Factory default)
0
1
5-7
0
2
9-11
0
3
10-12
0
4
11-13
0
5
12-14
0
6
13-15
0
0
2.8 (Factory default)
0
1
2.5
0
2
2.6
0
3
2.7
0
4
2.9
0
5
3.0
0
6
3.1
0
7
3.2
0
8
3.3
ENGLISH-74
Remarks
E560 will occur when all
the compressors are set as
malfunction state.
Targeted evaporation
temperature [°C].
(When low temperature value is
set, discharged air temperature
of the indoor unit will decrease)
Targeted high pressure [MPa].
(When low pressure value is set,
discharged air temperature of
the indoor unit will decrease)
Optional item
0
3
Oil collection
interval
Main
0
4
Disable
Main
0
5
Disable
Individual
0
6
Disable
Setting highhead condition
Setting longpiping condition
(Setting is
unnecessary
if high-head
condition is set.)
Main
Main
Main
0
0
0
7
8
Remarks
0
0
100% (Factory default)
0
1
95 %
0
2
90 %
0
3
85 %
0
4
80 %
0
5
75 %
0
6
70 %
0
7
65 %
0
8
60 %
0
9
55 %
1
0
50 %
1
1
No restriction
0
0
Factory default
0
1
Shorten the interval by 1/2
0
0
Disable
0
1
Disable
0
0
Disable
0
1
Disable
0
0
Disable
0
1
Disable
0
2
Disable
0
3
Disable
0
0
Disable (Factory default)
0
1
Level 1 of height difference
type 1 (Indoor unit is lower
than outdoor unit)
When outdoor unit is over 40 ~
80 m above the indoor unit
0
2
Level 2 of height difference
type 1 (Indoor unit is lower
than outdoor unit)
When outdoor unit is over 80 m
above the indoor unit
0
3
Height difference type 2
(Outdoor unit is lower than
indoor unit)
When indoor unit is over 30 m
above the outdoor unit
0
0
Disable (Factory default)
0
1
Long piping level 1
When equivalent length of
farthest indoor unit from
the outdoor unit is between
100~170 m
0
2
Long piping level 2
When equivalent length of
farthest indoor unit from the
outdoor unit is over 170 m
9
ENGLISH-75
When restriction option is
set, cooling and heating
performance may decrease.
This function is not applicable
for this model
This function is not applicable
for this model
This function is not applicable
for this model
INSTALLING THE PRODUCT
Individual
Function of the option
02
Current restriction
rate
Input unit SEG1 SEG2 SEG3 SEG4
Setting outdoor unit option switch and key function
Optional item
Input unit SEG1 SEG2 SEG3 SEG4
0
Energy saving/
rapid cooling
setting
(B type PBA)
Disable
Expand
operational
temperature
range for cooling
operation
Channel address
Main
Main
Main
Main
1
1
1
1
0
1
2
0
0
1
Energy saving mode
0
2
Rapid cooling
0
0
Disable
0
1
Disable
0
0
Disable
0
1
Enable
A
U
Automatic setting (Factory
default)
3
Manual setting for channel
0~15
0 ~ 15
Disable
Circulation water
flow control
Main
Individual
1
1
4
5
Forced quiet
mode (Disuse)
Main
1
6
High-speed
operation
(B type PBA)
Main
1
7
Max. capacity
restriction
(B type PBA)
Main
1
8
Gasleak
Pumpdown
(B type PBA)
Main
1
9
Function of the option
Remarks
Disable (Factory default)
0
0
Disable
0
1
Disable
0
0
Disable (Factory default)
0
1
7-10 V
0
2
5-10 V
0
3
3-10 V
0
0
Disused option
0
0
Disable (Factory default)
0
1
Enable
0
0
Enable
0
1
Disable
0
0
Disable
0
1
Enable
ENGLISH-76
Energy saving mode triggers
when the room temperature
reaches desired temperature
while operating in cooling or
heating mode.
This function increases cooling
speed.
This function is not applicable
for this model
Address for classifying the
product from upper level
controller (DMS, S-NET 3, etc)
This function is not applicable
for this model
When variable flow control
valve is applied
High-speed operation
Maximum cooling capacity
restriction
Leaked refrigerant collection
Optional item
Input unit SEG1 SEG2 SEG3 SEG4
Individual
Disable
Main
Main
2
2
0
1
2
0
0
Water
0
1
Anti-freeze solution 1
0
2
Anti-freeze solution 2
0
0
Disable
0
1
Disable
0
0
0
1
0
2
Circulation fluid flow setting
This function is not applicable
for this model
Disabled (Factory default)
Indoor high humidity condition When set, emergency operation
(operating for up to 12hours) is possible even if an indoor
Indoor low humidity condition communication error occurs.
(operating for up to 24hours)
Note 1) Anti-freeze solution 1: Freezing point of anti-freeze must be below -8 ˚C. (Minimum temperature of entering water: - 5˚C)
Anti-freeze solution 2: Freezing point of anti-freeze must be below -15 ˚C. (Minimum temperature of entering water: - 10˚C)
❋ There is a risk of water leakage during emergency operation for indoor unit communication error. Please be careful when
using it.
ENGLISH-77
INSTALLING THE PRODUCT
Emergency
operation for
indoor unit
communication
error (B type PBA)
2
Remarks
02
Note 1)
Circulation
fluid flow setting
(B type PBA)
Function of the option
Setting outdoor unit option switch and key function
Setting key operation and checking the view mode with tact switch
K1
K2
K3
K4
< A type >
< B type >
K1 (Number of
press)
KEY operation
Display on segment
Press and hold 1
time
Auto trial operation
“K”“K”“BLANK”“BLANK”
1 time
Refrigerant charging in Heating mode
“K”“1”“BLANK”“BLANK”
2 times
Trial operation in Heating mode
“K”“2”“BLANK”“BLANK”
3 times
Pump out in Heating mode (Outdoor unit address 1)
“K”“3”“BLANK”“1”
4 times
Pump out in Heating mode (Outdoor unit address 2)
“K”“3”“BLANK”“2”
5 times
Pump out in Heating mode (Outdoor unit address 3)
“K”“3”“BLANK”“3”
6 times
Pump out in Heating mode (Outdoor unit address 4)
“K”“3”“BLANK”“4”
7 times
Vacuumig (Outdoor unit address 1)
“K”“4”“BLANK”“1”
8 times
Vacuumig (Outdoor unit address 2)
“K”“4”“BLANK”“2”
9 times
Vacuumig (Outdoor unit address 3)
“K”“4”“BLANK “ “3”
10 times
Vacuumig (Outdoor unit address 4)
“K”“4”“BLANK”“4”
11 times
Vacuuming (All outdoor units)
“K”“4”“BLANK”“A”
12 times
End Key operation
-
ENGLISH-78
K2 (Number of press)
KEY operation
Display on segment
1 time
Refrigerant charging in Cooling mode
K - 5 - BLANK - BLANK
2 times
Trial operation in Cooling mode
K - 6 - BLANK - BLANK
3 times
Pump down all units in Cooling mode
K - 7 - BLANK - BLANK
4 times
HR: Pipe connection inspection
H/P: Auto trial operation
K - 8 - BLANK - BLANK
02
5 times
Checking the amount of refrigerant
K-9-X-X
(Display of last two digits may differ depending on
the status)
6 times
Discharge mode of DC link voltage
K - A - BLANK - BLANK
7 times
Forced oil collection
K - C - BLANK - BLANK
8 times
Inspect inverter compressor 1
K - D - BLANK - BLANK
9 times
Inspect inverter compressor 2
K - E - BLANK - BLANK
INSTALLING THE PRODUCT
10 times
Water pipe valve/Pump check
K - F - BLANK - BLANK
11 times
Cooling fan/Flow control valve check
K - G - BLANK - BLANK
A type PBA
12 times
13 times
End key operation
-
B type PBA
HR : Auto pipe pairing,
H/P : Unused
“K””H”XX
(Display of last two digits may differ
depending on the progress)
B type PBA
End key operation
-
❋ During “Discharge mode of DC link voltage,” voltage of INV1 and INV2 will be displayed alternately.
❋ Even when the outdoor unit power is off, it is dangerous when you come in contact with inverter PCB and fan PCB since
they are charged with high DC voltage.
❋ When pressing K2 key 9 to 12 times without inverter checker, error code can be displayed on segment even though the
outdoor unit is normal.
❋ When replacing/repairing the PCB, cut off the power and wait until the DC voltage is discharged before replacing/
repairing them (Wait for more than 15 minutes to allow it to discharge naturally.)
❋ When there were error, ‘Discharge mode of DC link voltage’ may not have been effective. Especially if error E464 and E364
have been occurred, power element might be damaged by fire and therefore, do not use the ‘Discharge mode of DC link
voltage.’
❋ If the 1st-generation MCU is installed, the Auto pipe pairing operation can not be used.
If the 2nd-generation MCU is installed, the Checking the pipe connection can not be used.
- 1st-generation MCU : MCU-S*NEE*N
- 2nd-generation MCU : MCU-S*NEK2N,MCU-S4NEK3N,MCU-S1NEK1N
❋ If there is an A type PBA among the outdoor units installed as a module, the Auto pipe pairing operation can not be used.
K3 (Number of
press)
KEY operation
Display on segment
1 time
Intialize (Reset) setting
Same as initial state
Setting outdoor unit option switch and key funtion
ENGLISH-79
Setting outdoor unit option switch and key function
K1
K2
K3
K4
< A type >
K4 (Number of
press)
< B type >
Display on segment
KEY operation
SEG 1
SEG2, 3, 4
1 time
Outdoor unit model
1
AM120FXW✴ Off, 1, 2
2 times
Target frequency (Compressor 1)
2
120 Hz 1, 2, 0
3 times
Target frequency (Compressor 2)
3
120 Hz 1, 2, 0
4 times
High pressure (MPa)
4
1.52 MPa 1, 5, 2
5 times
Low pressure (MPa)
5
0.43 MPa 0, 4, 3
6 times
Discharge temperature (Compressor 1)
6
87 °C 0, 8, 7
7 times
Discharge temperature (Compressor 2)
7
87 °C 0, 8, 7
8 times
IPM temperature (Compressor 1)
8
87 °C 0, 8, 7
9 times
IPM temperature (Compressor 2)
9
87 °C 0, 8, 7
10 times
CT sensor value (Compressor 1)
A
2 A 0, 2, 0
11 times
CT sensor value (Compressor 2)
B
2 A 0, 2, 0
12 times
Suction temperature
C
-42 °C -, 4, 2
13 times
COND OUT temperautre
D
-42 °C -, 4, 2
14 times
Temperature of liquid pipe
E
-42 °C -, 4, 2
15 times
TOP temperature (Compressor 1)
F
-42 °C -, 4, 2
16 times
TOP temperature (Compressor 2)
G
-42 °C -, 4, 2
17 times
Water temperature
H
-42 °C -, 4, 2
18 times
EVI inlet temperature
I
-42 °C -, 4, 2
19 times
EVI outlet temperature
J
-42 °C -, 4, 2
20 times
Main EEV 1 step
K
2000 steps 2, 0, 0
21 times
Main EEV2 step
L
2000 steps 2, 0, 0
22 times
EVI EEV step
M
300 steps 3, 0, 0
23 times
HR EEV step
N
2000 steps 2, 0, 0
24 times
-
O
-
ENGLISH-80
K4 (Number of
press)
KEY operation
25 times
Display on segment
SEG 1
SEG2, 3, 4
Current frequency of the compressor 1
P
120 Hz 1,2,0
26 times
Current frequency of the compressor 2
Q
120 Hz 1,2,0
27 times
Suction 2 temperature
R
-42 °C -, 4, 2
S
29 times
Temperature of control box
T
-42 °C -, 4, 2
K4 (Number of
press)
Press and hold
the K4 to enter
the setting
Displayed content
1 time
Main version
Display on segment
page1
page2
MAIN
Version (ex. 1412)
2 times
Hub version
HUB
Version (ex. 1412)
3 times
Water hub version
HUB2
Version (ex. 1412)
4 times
Inverter 1 version
INV1
Version (ex. 1412)
5 times
Inverter 2 version
INV2
Version (ex. 1412)
6 times
EEP version
EEP
7 times
Automatically assigned address of the
units
AUTO
8 times
Manually assigned address of the units
MANU
❋ I/U: Indoor unit
ENGLISH-81
Version (ex. 1412)
SEG1
SEG2
SEG3, 4
Indoor unit: “A”
MCU: “C”
Indoor unit: “0”
MCU: “1”
Address
(ex: 07)
SEG1
SEG2
SEG3, 4
Indoor unit: “A”
Indoor unit: “0”
Address
INSTALLING THE PRODUCT
Address of master indoor unit
02
28 times
When master indoor unit is not set BLANK, N, D
When indoor unit No.1 is set as master indoor unit 0, 0, 1
Setting the MCU and Pipe Addresses (for HR Only)
You can set the MCU address, the MCU ports to use, and the address for each MCU port connected to each indoor unit.
It is for 2nd-generation MCU only. (MCU-S✴NEK2N,MCU-S4NEK3N,MCU-S1NEK1N)
Setting the MCU address and the MCU ports to use
You can set the MCU address and the MCU ports on the MCU PBA.
MCU address
switch
DIP switch
ON
ON
1 2 3 4
1 2
A B C D
E F
1 2 3 4
456
23
9 01
78
ON
23
78
9 01
S/W option
DIP switch
A
B
C
D
E
F
456
1. Set the MCU address switch to a value. If two or more MCUs are installed, be sure to set a unique value for each MCU. For
the MCU address, you can set a value from 0 to 15.
2. For each MCU ports that are connected to an indoor unit through piping, set their DIP switch to ON. For other MCU ports,
set their DIP switches to OFF.
You can find the address (A to F) of an MCU port on the indoor unit piping connection.
3. If two MCU ports are connected to an indoor unit through a Y-joint, set the relevant S/W option DIP switch to the
settings given in the following table:
S/W option DIP
switch No.
ON
(Individual connection)
OFF
(Shared connection)
1
Each of ports A and B
Both ports A and B
2
Each of ports C and D
Both ports C and D
3
Each of ports E and F
Both ports E and F
❋ You cannot make a shared connection for the two ports B and C, and D and E at the same time.
A
B
C
D
E
F
A
B
C
D
E
F
4. Set the address of each MCU port that is connected to an indoor unit by taking the procedures in Setting the Pipe
Addresses Manually or Setting the Pipe Addresses Automatically. (Auto pipe pairing operation)
CAUTION
• If the following models are connected, set the pipe addresses manually by referring to Setting the Pipe
Addresses Manually.
- ERV plus (AM✴✴✴✴NKDE✴), OAP duct (AM✴✴✴✴NEPE✴), Hydro Unit (AM✴✴✴✴NBDE✴,
AM✴✴✴✴NBF✴✴), AHU kit (MXD-K✴✴✴AN, MCM-D✴✴✴N)
• If 1st-generation MCU (MCU-S✴NEE✴N) is installed, refer to the corresponding install manual.
ENGLISH-82
Setting the Pipe Addresses Manually
You can use the wired or wireless remote control or the S-NET Pro 2 to set the pipe addresses for each indoor unit.
Setting by using the wired or wireless remote control (For how to operate the remote control
buttons, see the remote control user manual.)
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
0 to 9: Hundreds
digit of the indoor
unit address
0 to 9: Tens digit
of the indoor unit
address
0 to 9: Units digit
of the indoor unit
address
Value
0
A: Address setting
mode
0: The address of the
indoor unit will not
be set.
1: The address of the
indoor unit will be
set.
Option
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
Value
1
0
0: The RMC address
will not be set.
1: The RMC address
will be set.
0
0 to F: RMC group
channel
0 to F: RMC group
address
Option
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
0: The MCU
address will not
0 to 9: Units
0 to 1: Tens digit of
be set.
digit of the MCU
the MCU address
address
1: The MCU
address will be set.
A to F: MCU port
address
Value
2
0
Option
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
Value
3
0
0
0
0
0
Examples> If the indoor unit whose address is not yet set is connected to port A on the MCU 1, set 0A0000-10000020101A-300000.
If the indoor unit whose address is set to 9 is connected to port B on the MCU 2, set 0A1009-100000-20102B-300000.
Setting by using S-NET Pro 2
fSet the pipe addresses by using Add-on > Change address on S-NET Pro 2. (For more information, see the S-NET Pro 2
Help.)
ENGLISH-83
INSTALLING THE PRODUCT
Option
02
1. Turn on both the indoor unit and the remote control.
2. Enter the “Option setting mode” on the remote control.
3. Set the address of each MCU port that is connected to an indoor unit by referring to the following table.
(You can also set the address of each indoor unit.)
Setting the MCU and Pipe Addresses (for HR Only)
Setting the Pipe Addresses Automatically (Auto pipe pairing operation)
You can use the Automatic pipe-address setting operation to automatically set the address of each MCU port that is
connected to an indoor unit.
If an MCU port is set incorrectly or a pipe between an MCU and an indoor unit is connected incorrectly, that indoor unit is
indicated.
Check items before running the Auto pipe pairing operation
Water Temperature (°C)
1. Ensure that the service valve of the outdoor unit is open.
2. Ensure that the power cables and communication cables of the indoor and outdoor units are correctly connected.
3. Turn on the indoor and outdoor units 6 hours before running the Automatic pipe-address setting operation to warm up
both units sufficiently.
4. Before turning on the power, check whether the voltages and phases are correct by using a voltmeter and a phase tester.
- Check for the R, S, T, and N terminals: ensure that 380-415V is read between lines (R-S, S-T, T-R) and 200-240V (R-N, S-N,
T-N) between phases.
5. After the power is turn on, set the devices (indoor unit, MCU, and others) that are connected to the outdoor unit, and set
the options.
Note that, before the MCU port addresses are set, MCU port setting errors (E216, 217, 218) may occur. You can run the
Automatic pipe-address setting operation regardless of MCU port setting errors.
6. If the OAP(Outdoor Air Precessing) Duct or Hydro unit is connected, set the pipe addresses manually referring to [Setting
the Pipe Addresses Manually].
7. Check the operating temperature for the Automatic pipe-address setting operation:
If this operation is run at a temperature out of the operating temperature range, the addresses set automatically may be
incorrect. Set the pipe addresses manually by referring to Setting the Pipe Addresses Manually.
8. Auto pipe-pairing operation does not work within 3 minutes after power on and reset due to communication check.
45
Main cooling operation
Main heating operation
35
10
10
32
Indoor Temperature (°C)
[Operating temperature for the Auto pipe pairing operation]
ENGLISH-84
❋ Before running the Auto pipe pairing operation, be sure to close the front cabinet. If this operation is run with the front
cabinet open, the product may be damaged and the pipe addresses cannot be correctly recognized.
02
INSTALLING THE PRODUCT
To run the Auto pipe pairing operation, take the following steps:
1. Press the K2 button 12 times on the B type main PBA of the outdoor unit to start the Auto pipe pairing operation.
(Display :
.)
Water temperature < 35 °C
30°C < Water temperature
Main heating operation
Main cooling operation
Each step is indicated on the outdoor unit display. (The whole operation takes about 25 to 55minutes normally,
depending on the number of indoor units connected. However, it can be operated for up to 2 hours to protect the
compressor.)
) → Steps 2 to 8 (Setup
) → Step 9 (Check
) → Step 10 (Confirmation
- Step 1 (Start
2. When the Auto pipe pairing operation finishes, the following data is shown on the outdoor unit display.
Result
Outdoor unit display
Setting completed
End
)
Description
Indoor unit data
Setting error
E191
Indoor unit data
(displayed alternately)
- SEG 1,2 = indoor unit address / SEG 3,4 = error status
00: An MCU port is not disabled, or a
pipe is not connected.
01: Cooling only indoor unit is
connected to MCU.
02: The shared setting for two ports
is incorrect.
Example) When the MCU port connected to the indoor unit 12 is
disabled, E191 and 1200 are displayed alternately
- If two or more indoor units have setting errors, the data about the
next indoor unit is displayed each time you press the K2 switch.
CAUTION
• If the MCU ports to use are set incorrectly, the Auto pipe pairing operation may stop due to high-pressure or lowpressure protection control or the data about the indoor unit that has a MCU port setting error may be incorrect. Ensure
that the MCU ports to use are set correctly.
• Depending on the indoor and water temperature, the Auto pipe pairing operation may stop due to protection control.
• If an error occurs while the Auto pipe pairing operation is running, check the error code and take actions.
• If you cannot finish the Auto pipe pairing operation because of the previous reasons, set the pipe addresses manually by
referring to Setting the Pipe Addresses Manually.
ENGLISH-85
Water pipe installation
It is recommended to use closed circuit cooling tower. If open cooling tower is applied, use intermediate heat exchanger and
make sure that supplied heat source water system is closed circuit.
Water pipe installation
<Water pipe diagram>
Water pipe
Flange
2Way solenoid valve
Ball valve
<Connecting pipe before test operation>
T
Water pipe
connection
hose
Flexible joint
(absorb vibration)
Flow switch
(Mandatory
connection)
Protection tube
T
Pipe for cleaning
<Pipe connection part>
Anti-vibration pad
Insulator
Water pipe
50 or more
Heat exchanger
80 mm or more
Finishing tape
Water pipe IN
Strainer (must be
purchased separately)
Support to prevent
loading on the pipe
❋ From above illustration, flow switch (mandatory) and 2way solenoid valve (optional) must be at least equivalent to the
specification recommended by our company and they should be installed horizontally.
CAUTION
When water pipe circuit freezes, it will cause damage to the plate type heat exchanger and therefore
preventive measure must be taken according to the situation.
• Drain remaining water in the water pipe when it will not be used for long period of time
• Constantly operate the water pump to circulate the water within the water pipe
• Install self-regulating heat cable on the water pipes
❋ Design condition
Type
Circulating
water
Heat source
water
Water loop
Ground heat
source Note1)
Ground loop
Operation
Cooling
Heating
Inlet water temperature
Main usage range
Usage range limit Note 3)
20 ~ 35 °C
10 ~ 45 °C
Cooling
15 ~ 35 °C
10 ~ 45 °C
Heating
5 ~ 25 °C
-5 ~ 45 °C (-10 ~ 45 °C) Note 2)
Remarks
Refer to
'Cooling water
management' on
page 103
Note 1): Anti-freeze must be used when temperature of water inlet for heating is below 10°C or ground heat source is
used. Maintain appropriate concentration level of anti-freeze according to temperature of water inlet.
Note 2): Strict management of anti-freeze concentration level is required. Consult Samsung before application.
Note 3): When inlet water temperature is outside of limit, consult Samsung before application.
ENGLISH-86
1. Refer to following table, for diameter of the outdoor unit connection part where water pipe will be connected. If you
install outdoor units with different capacities, install a flow control valve to secure rated flow for each outdoor unit. Socket
must be connected within below tightening torque. If the tightening torque exceeds below value, it may cause product
breakage.
PT 2 (Internal thread)
Outer diameter of water pipe (mm)
Tightening torque (N·m)
10 ~ 20
25
21 ~ 30
50
31 ~ 50
100
51 ~ 80
220
81 ~ 115
600
2. Use certified parts for water pipe system and the water pressure of the water pipe system connected to outdoor unit
must remain under 1.96 MPa.
3. Outdoor unit water pipes must be equipped with valves and other instrumentations as shown in the figure on the
previous page. Strainer and flow switch must be installed within 1~2 m from the entrance pipe of the outdoor unit.
(Strainer must be installed on entrance side)
- When strainer is not installed, sand, dust or rust debris may cause product breakage.
- Make sure to install a flow switch that works at minimum discharge. When optimal discharge level is not reached, heat
exchanger within the outdoor unit may break.
4. Water inlet pipe is located at the bottom part of the heat exchanger and the water outlet pipe is at the top part of the
heat exchanger.
5. Outdoor unit must be installed indoor at room temperature and the water inlet and outlet of the outdoor unit must be
insulated with the heat exchanger as shown in the illustration.
6. Damp-proof, cold reserving and insulation work must be done thoroughly to prevent condensation from forming on the
surface of the product and drain pipes of indoor/outdoor units. When the necessary work is not done thoroughly, you will
waste energy caused by thermal loss and may get property damage during cold seasons when water pipe freezes and
bursts.
7. If you stop the product for long time or in night time, water pipe circuit may freeze naturally when the temperature
around the outdoor unit is under 0°C. When water pipe circuit freezes, it will cause damage to the plate type heat
exchanger and therefore preventive measure must be taken according to the situation.
- Drain remaining water in the water pipe
- Operate continuous water circulation pump during outdoor unit operation, 1~5 minutes before the operation and 1~5
minutes after operation stops
- Install self-regulating heat cable on the water pipes
8. When inlet water temperature is lower than 10°C, appropriate anti-freeze must be used according to the temperature. Set
the outdoor unit option switch (A Type PBA : K21/K22, B Type PBA : Key option) according to the usage temeprature.
- When lowest inlet water temperature is -5°C, freezing point of anti-freeze must be lower than -8°C
- When lowest inlet water temperature is -10°C, freezing point of anti-freeze must be lower than -15°C
9. Install number of auto air vent valve at a point where air may remain within the pipe (such as vertical water pipe). If the
air within the pipe is not vented, it may cause performance decrease or corrosion on the product or pipes.
10. Keep the inlet water temperature within 'Main usage range'. If not, product may not work continuously.
11. Water scale may occur on the plate type heat exchanger depending on the water quality and the type of plate heat
exchanger so regular chemical cleaning is necessary. When installing water pipes, install a heat source water shut-off
valve and also install the flushing pipe with a ball valves (for chemical cleaning) on the pipe installed between the shutoff valve and the outdoor unit.
ENGLISH-87
INSTALLING THE PRODUCT
AM300KXWA✴✴
PT 1-1/4 (Internal thread)
02
AM080/100/120/200FXWA✴✴
Water pipe installation
Ball valve
(used as cleaning hole)
Cleaning device
Water outlet pipe
Plate
type heat
exchanger
Outdoor unit
Auto air discharge valve
Ground heat or
closed circuit
cooling tower
Strainer for
outdoor unit
Water inlet pipe
Strainer for
pump
Ball valve
(used as cleaning hole)
Flushing pipe
(Install it when cleaning)
1. Before trial operation, connect the cleaning pipes installed on inlet and outlet as shown in above illustration. Then, take
appropriate measures (such as blind flange etc) to stop the circulation water from entering the outdoor unit plate type
heat exchanger, and use circulating pump to remove foreign substance within the water pipes and clean the strainer.
When foreign substances accumulates on outdoor unit plate type heat exchanger, it may break the heat exchanger or
cause problem to it.
2. For legal facilities, install digital sensor and flow meter on the water pipe for monitoring.
CAUTION
• Open the valve of the water pipe connected to the outdoor unit after flushing (cleaning foreign substances in
water pipe) is completed.
• Check that air is vented from the water pipe and circulation amount is secured before opening the service valve
on the refrigerant side of the outdoor unit.
• When circulating water stops during outdoor nit operation, it may cause breakage on plate type heat exchanger.
Check the flow of circulation with flow switch or other devices.
ENGLISH-88
External contact connection
Flow switch connection (Mandatory connection)
Flow control
Connect flow switch wire to the FLOW-SW IN terminal regardless of the polarity
Flow switch turns on when flow
amount increases
CAUTION
• Pump out, 2way solenoid valve, flow switch can be used individually or together.
• For installation location of the 2way solenoid valve and flow switch, Refer to 'Water pipe diagram' on page 86.
Pump out connection
fWhen the main pump is installed to common water pipe, powerless contact signal will be provided. (Refer to 'Installation
example of extra controller such as 2way solenoid valve and pump etc.' on page 91.)
Water Hub PBA
PUMP OUT 2WAY V/V FLOW S/W
Flow control
Controller
Pump
Power
source
ENGLISH-89
INSTALLING THE PRODUCT
Water Hub PBA
PUMP OUT 2WAY V/V FLOW S/W
02
fWhen flow switch is used, it will receive signal of the heat source water circulation and detects if there is any problem on
water circulation before operating the outdoor unit.
fWhen there is no contact signal input to the flow switch, it will be diagnosed as 'Problem with the heat source water
circulation' and outdoor unit will stop operating to protect outdoor unit.
Explanation of optional functions
2Way solenoid valve
fWhen installing multiple number of outdoor units to a common water pipe, 2way valve will cut the cooling water supply
to an outdoor unit that is not operating, so it will increase the overall efficiency of the system. 2Way solenoid valve will
operate automatically depending on the operation status of the indoor and outdoor units. (Outputs contact signal)
fYou may select either internal or external power cable connection for the 2way solenoid valve.
(External power)
Power source
External controller
Water Hub
PBA
2Way solenoid valve
PUMP OUT 2WAY V/V FLOW S/W
Flow control
(Internal power)
❋ Connect the 2way solenoid valve cable to the 2way valve terminal regardless of the polarity.
(However, Use external power if the load of solenoid valve is maximum 250 V and current over 0.2 A.)
Flow control
fAfter setting the outdoor unit option switch, you may connect variable flow control valve that is controlled at 0 ~ 10 V of
input signal.
fIf the power of variable flow control valve is AC 220-240V, you may use the internal power of the outdoor unit.
fWhen applying the DC 24 V flow control valve, use Transformer kit MVR-TK024 (optional).
fUse the external power if the load of variable solenoid valve is maximum 250 V and current over 0.2 A.)
fOutput range of the variable flow control valve is different depending on the setting of the outdoor unit option switch
(Refer to 'Setting key operation and checking the view mode with tact switch' on page 76)
Water Hub
PBA
PUMP OUT 2WAY V/V FLOW S/W
(Use internal
power)
Flow control
Variable flow
control valve
Power source
(External power)
❋ When valve load is over 0.2 A use external power.
ENGLISH-90
Wiring method for optional functions
Installation example of AC 220-240 V, direct operation type 2way solenoid valve
2Way solenoid valve
AC 220-240 V
AC 220-240 V
02
Relay
INSTALLING THE PRODUCT
2Way solenoid valve
OUT
Relay
Controller
PUMP OUT
Flow switch
PUMP F/B IN
PUMP/2Way solenoid valve controller (PBA)
Caution for wiring
Outdoor unit
Internal part of outdoor unit
External part of outdoor unit
f2way solenoid valve is a type that works at AC 220-240 V 50/60 Hz and supports product with 0.2 A or low.
- For 2way solenoid valve with over 0.2 A, connect external power.
- For external power cable for 2way solenoid valve must use 600 V flame-resisting double layered cable.
fProduct will not operate when flow switch is not installed.
Installation example of extra controller such as 2way solenoid valve and pump etc.
FUSE
AC 220-240 V
AC 220-240 V
2Way
solenoid
valve
Relay
Relay
Controller
2Way solenoid
valve, Pump
controller
2Way solenoid
valve OUT
PUMP OUT
PUMP
PUMP F/B IN
Flow switch
PUMP/2Way solenoid valve controller (PBA)
Outdoor unit
Caution for
wiring
Internal part of outdoor unit
AC 220240 V
2Way solenoid valve, Pump controller
External part of outdoor unit
fIf the operation type of 2way solenoid valve is different, use extra controller.
- Also use external controller for pump.
- Outdoor unit only provides contact signal needed for 2way solenoid valve and pump operation. Therefore, do not use
the contact signal from the air conditioner directly.
fProduct will not operate when flow switch is not installed.
ENGLISH-91
Explanation of optional functions
Flow chart of outdoor unit external contact controller
Indoor unite remote controller ON
2Way solenoid valve On
Pump On
Flow switch On
System stops
No
Yes
System operation
fFlow switch detector circuit must be detected for more than 30 seconds within 3 minutes after first operation signal
output of the pump. (Outdoor unit will not operate when there is no detection.)
fOutdoor unit will stop if the contact of flow switch becomes ‘Off’ even during the operation.
fWhen outdoor unit stops, cooling water pump will also stop.
fEven when you are not using the external contact control from DVM outdoor unit, you may use other external control
methods such as DDC, PLC or BMS and apply above flow chart. Also apply control for freezing prevention of the water
circulation during winter season.
fIf you control pump/2way solenoid valve with extra controller, make sure to apply in control so that pump/2way solenoid
valve operates for 3 minutes after the outdoor unit stops operating.
ENGLISH-92
Things to check after completing the installation
230V 230V 230V
400V
400V
400V
N
T
S
R
< ELB >
3. Check if the R-410A indoor units are connected.
4. When N phase is not correctly connected to R, S and T phase, over-voltage protection control will be in effect and it will
cut-off the power of the PCB. Check the power cable connection of the N phase if the PCB is not turned on.
5. Check the following after the installation is completed.
Outdoor unit
Installation work
Indoor unit
•
•
•
•
• Have you checked the external surface and the inside of the indoor unit?
• Is there enough space for service?
• Have you checked if the center of the indoor unit is ensured and it is installed
horizontally?
•
•
•
•
Refrigerant pipe work
Have you checked the external surface and the inside of the outdoor unit?
Is there any possibility of short-circuit caused by the heat of an outdoor unit?
Is the place well-ventilated and ensures space for service?
Is the outdoor unit fixed securely to withstand any external force?
•
•
•
•
•
Have you selected correct pipes?
Are the liquid and gas valve open?
Is the total number of connected indoor units within the allowable range?
Are the length and the height difference between the refrigerant pipes
within the allowable range?
Are the branch joints properly installed?
Did you check the connection of liquid and gas pipes?
Have you selected correct insulator for pipes and insulated them correctly?
DId you insulate the pipes and connection part correctly?
Is the quantity of the additional refrigerant correctly weighed in? (You must
record the amount of additional refrigerant on the service record paper
placed inside of the outdoor unit.)
ENGLISH-93
OTHERS
CAUTION
• Never measure the communication terminal since communication circuit may get damaged.
• Check for short-circuit of the communication terminal with a general circuit tester.
03
1. Before supplying the power, use DC 500 V insulation resistance tester to measure the power (3 phase: R, S, T/ 1 phase: L,
N) terminal and insulation resistance between the outdoor unit groundings.
- Measurement should be over 30MΩ.
2. Before supplying the power, use a voltmeter and phase tester to check the voltage and the phase.
- R, S, T, N terminal: check if the voltage is within 380-415 V between wires (R-S, S-T, T-R) and 220-240 V between phases
(R-N, S-N, T-N) before turning on the switch.
Things to check after completing the installation
Drain pipe work
• Have you checked if the drain pipes of the indoor and outdoor unit are
connected together?
• Have you completed the drain test?
• Is the drain pipe properly insulated?
Electrical wiring work
• Are the power cable and communication cable tightened firmly on the
terminal board within the range of rated tightening torque?
• Have you checked for cross-connection of the power and communication
cables?
• Have you performed the earthing work 3 to the outdoor unit?
• Did you make sure to use 2-core cable (not multi-core cable) for the
communication cable?
• Is the length of the wire within allowed range?
• Is the wiring route correct?
Setting address
• Did you set the address of the indoor and outdoor units properly?
• Did you set the address of the indoor and outdoor units properly? (When
using multiple remote controllers)
Option
• If there is a possibility of the outdoor unit from vibrating, check whether the
anti-vibration frame is correctly installed.
Inspection and test operation
CAUTION
Precautions before trial operation
• When the outdoor temperature is low, turn on the main power 6 hours before beginning the operation.
- If you start the operation immediately after turning on the main power, it may cause serious damage to the
part within the product.
• Do not touch the refrigerant pipe during or right after the operation.
- Refrigerant pipe may be hot or cold during or right after the operation depending on the status of the
refrigerant which flows through the refrigerant pipe, compressor and other parts of the refrigerant cycle. If you
touch the refrigerant during or right after the operation, you may get burns or frostbite.
• Do not operate the product with its panel or protection nets off.
- There is risk of personal injury from the parts that rotates, heated or with the high voltage.
• Do not cut off the main power right after stopping the operation.
- Wait for at least 5 minutes before turning off the main power. If not, water leakage or other problems may
occur.
• Connect all the indoor units and the power supply for the outdoor unit and run auto address setting. Run auto
address setting even after changing the indoor unit PCB.
ENGLISH-94
Checklist before auto trial operation
6. Guaranteed range of auto trial operation
For precise judgment, you must perform auto trial operation in below indoor/outdoor temperature condition.
Inlet water temperature (°C)
45
40
35
30
25
Cooling
Heating
20
15
10
5
0
0
5
10
15
20
25
30
35
40
45
Indoor temperature (°C)
- In Auto trial operation, product will automatically select either cooling or heating mode and operate in selected mode.
- In the temperature range marked with slashed pattern, system protection control may trigger during operation.(If the
system protection control is enabled, it can be hard to get the precise judgment after the auto trial operation.)
- When the temperature is outside of guaranteed range, accuracy of judgment on auto trial operation may decrease near
boarder line area.
ENGLISH-95
OTHERS
• Supply power to the outdoor unit 6 hours before auto trial operation to pre-heat the crank case heater.
CAUTION
03
1. Check the power cable and communication cable of the indoor and outdoor unit.
2. Supply power to the outdoor unit 6 hours before trial operation to pre-heat the crank case heater.
3. Before supplying the power, use a voltmeter and phase tester to check the voltage and the phase.
- R, S, T, N terminal: check if the voltage is within 380 -415 V between wires (R-S, S-T, T-R) and 220-240 V between phases
(R-N, S-N, T-N).
4. When the power is supplied, outdoor unit will execute tracking to check the indoor unit connection and other optional
functions.
5. Write down the installation report on the service history report paper attached on the front part of the control box.
Inspection and test operation
Auto trial operation
1. If the Auto Trial Operation is not completed, normal operation will be prohibited.
- When the auto trial operation is not completed, UP (UnPrepared) will appear on the segment after the communication
check and restrict compressor from operating. (UP Mode will be cleared automatically when auto trial mode is
completed.)
- Auto trial operation may take 20 minutes to maximum 2 hours depending on the operation status.
- During auto trial operation, noise can be generated due to vavle inspection. (Check the product if abnormal noise
occurs continously)
2. When error occurs during auto trial operation, check the error code and take appropriate measures.
- Refer to next couple of pages when E503, E505 or E506 error occurs.
- Refer to service manual if you need inspection or when other errors occur.
3. When auto trial operation ends, use S-NET pro or S-CHECKER to issue a result report.
- Refer to service manual for further actions if you have any items with "inspection required" sign on the result report.
- After taking appropriate measure for the items with "inpection required" sign, run the auto trial operation again.
4. Check the following items by running trial operation (cooling/heating).
- Check if cooling/heating operation performs normally.
- Individual indoor unit control: Check for air flow direction and fan speed.
- Check for abnormal operation noise from the indoor and outdoor unit.
- Check for proper draining from the indoor unit during cooling operation.
- Use S-NET pro to check the detail operation status.
5. Explain to the user how to use the air conditioner according to the user's manual and provide this installation manual to
the user.
CAUTION
• Make sure to close the front part of the outdoor unit
cabinet during operation. If you operate the unit with
the front cabinet open, it may cause damage to the
product and you may not get the precise data from
S-NET pro.
ENGLISH-96
Inspection and trial operation
Measures to take when an E503 error occurs (When the “inspection required” message appears on
the S-NET pro report)
03
No.
Open the service valve of the outdoor unit
Yes
Is 4way valve and main EEV operating
normally?
No.
Check the 4way valve and Main EEV
Yes
No.
Is the quantity of the refrigerant correct?
Check for leakage. Perform vacuuming and
charge refrigerant
Yes
1. Run trial operation mode for more than 30 minutes
2. Run Fan mode for more than 10 minutes
3. Restart the auto trial operation
❋ 4-Way valve abnormal operation symptoms:
- Refrigerant noise increases when the compressor is in operation and the inlet pipe temperature (H/P: Suction, H/R:
Suction 2) remains over 10 °C when compared to the low pressure saturation temperature.
- During heating operation, the temperature of the EVa. in/out maintains a calue of less than 0 °C.
❋ Main EEV abnormal operation symptoms:
- During heating operation, an error occurs when controlling the degree of the superheat on the compressor inlet.
: If there is an operation error whilst the EEV is fully open, the target degree of superheat (1 °C) cannot be achieved
(below 0 °C) and the discharge temperature of the compressor is low.
: If there is and operation error whilst the EEV is fully closed, the low pressure will decrease and the degree of
superheat on the compressor inlet increases excessively.
CAUTION
• If the service valve needs to be detected, corresponding outdoor unit will display the error.
• If the service valve needs to be detected, auto detection mode will end. Check both gas pipe and liquid pipe
service valves when detecting service valve.
• When 4way valve, Main EEV detection is needed, run heating trial operation for more than 1 hour and analyze
the data to check for a problem.
• If the opreation range is not within guaranteed range, error may occur even though the product is normal.
ENGLISH-97
OTHERS
Is the service valve of the outdoor unit
open?
Inspection and trial operation
Measure to take when E505, E506 error occurs
Enable vacuum mode on all outdoor units
Is the service valve of the outdoor unit
open?
No.
Open the service valve of the outdoor unit
Yes
Does the value on the pressure
sensor of the installed outdoor unit
satisfy the following?
"Max./Min. value difference of low
pressure > 2"
"Max./Min. value difference of high
pressure > 2"
No.
Reset outdoor unit
Run trial operation
Yes
Analyze cycle data
Check/replace the abnormal pressure sensor
Disable vacuum mode on all outdoor units
End
CAUTION
• When the auto trial operation for pressure sensor is executed before the pressure of the outdoor unit is equalized
(when there is little difference between high and low pressure), error may occur even though the product is
normal.
• If the pressure sensor needs to be detected, all outdoor units will display the error.
• If the pressure sensor needs to be detected, auto trial operation mode will end.
• To check for the pressure sensor with the problem, run trial operation for more than 1 hour and analyze the data
to check for a problem.
ENGLISH-98
Automatic refrigerant amount checking function
This function detects the amount of refrigerant in the system
Start
03
Input S-CHECKER signal
Satisfy the temperature condition
Satisfy the temperature condition
Check the amount of refrigerant
Check the amount of refrigerant
No
OTHERS
Press the Tact switch "K2" 5 times
No
Check stability
Check stability
Yes
Yes
Connect S-Net Pro
Judge the amount of refrigerant
Judge the amount of refrigerant
Judgment on the amount of
refrigerant: Normal / Excessive /
Insufficient
Judgment not
available
Judgment on the amount of
refrigerant: Normal / Excessive /
Insufficient
End
ENGLISH-99
Judgment not
available
Automatic refrigerant amount checking function
CAUTION
• When the temperature is outside of guaranteed range, you can not obtain an accurate result.
- Indoor : 20~32 °C
- Water temperature : 15~40 °C
• If the operation cycle is not stable, refrigerant amount detection operation may end.
• Accuracy of the results may decrease if the product is not operated for a long period time before the refrigerant
amount detection function operation is activated. Use the refrigerant amount detection operation function after
operating the product in cooling mode for at least 30 minutes.
• Depending upon the operational environment, a system protection operation may be triggered. As a result, the
refrigerant amount detection result may be inaccurate.
Actions to take after the detection result
• Excessive amount of refrigerant : Discharge 5% of the detected amount of refrigerant and restart the refrigerant
amount detection operation.
• Insufficient amount of refrigerant : Charge 5% of the detected amount of refrigerant and restart the refrigerant
amount detection operation.
• Insufficient degree of supercooling : Charge 10 % of the detected amount of refrigerant and restart the
refrigerant amount detection operation.
• Judgment not available : Check if the refrigerant amount detection operation was executed within guaranteed
temperature range. Execute trial operation to check if there's any other problems on the system.
Precaution before trial operation
1. Water quality management
- It is not possible to disassemble the plate heat exchanger for cleaning or part replacement. therefore, to prevent
corrosion or water scale on the plate type heat exchanger, you must manage the cooling water quality in compliance
with standard of cooling water.(Refer to page 103.)
- If the temperature of water is higher than room temperature, make sure to keep the concentration of chloride ion
below 100 ppm to prevent corrosion and the water hardness should be below 150 mg CaCO3/L to prevent water scale.
When a scale inhibitor is used, make sure to use the a type that is corrosion-free to the stainless steel and copper.
2. Water flow management
- Insufficient water flow will lead to accidents related to frozen plate type heat exchanger. Check to make sure if there
is any decrease in amount of water flow due to blocked strainer, problem on air ventilation or circulation pump after
checking the temperature/pressure difference between the inlet and outlet of the plate type heat exchanger. If the
temperature/pressure difference exceeds optimal range, stop the operation until remedial action is taken before the
operation is restarted.
3. Counter-measures after E436 error (anti-freeze control) display
- If E436 is displayed during operation, make sure to take care of the cause of problem before re-starting the operation.
Water may freeze partially from the point when E436 is displayed. If you re-start the operation before the problem
has been taken care of, plate type heat exchanger will shutdown and it will be impossible to melt the ice. If the water
remains frozen, plate type heat exchanger will break and cause refrigerant leakage or water may enter into the
refrigerant cycle.
ENGLISH-100
Maintenance
Precautions on plate type heat exchanger maintenance
OTHERS
ENGLISH-101
03
❋ Make sure to tell the user to keep this installation manual.
1. When the product was not operated for long period of time, check the followings:
- Check the water to see if the water quality is meets the standard.
- Clean the strainer.
- Check to see if there is enough amount of water flow
- Check to see if there is any problems on the water pressure, amount of water and the water temperature at inlet/outlet.
- If you are using ground heat source, make sure to check the concentration level of the anti-freeze before the operation
to maintain the freezing point at below -8 °C (Refer to 'Ground heat exchanger circulation water (anti-freeze) usage
standard (mandatory checklist)' on page 105)
2. It is not possible to disassemble the plate heat exchanger for cleaning or part replacement. Therefore it has to be cleaned
by following methods.
- Check if there is any cleaning hole for chemical cleaning at the inlet water pipe. For water scale cleaning use diluted
(down to 5%) citric acid, oxalic acid, acetic acid, phosphoric acid. However, do not use a cleaning solution containing
hydrochloric acid, sulfuric acid or nitric acid since they are highly corrosive.
- Check if there is valve on the inlet/outlet of the plate type heat exchanger.
- Connect a exclusive pipe for cleaning to the inlet/outlet pipe of the plate type heat exchanger and fill the detergent
at the temperature of 50~60˚C and circulate the detergent for about 2~5 hours. Cleaning time can be different
depending on the temperature of detergent or degree of water scale. Judge the degree of water scale removal by the
color of water detergent.
- After cleaning, discharge the detergent within the plate type heat exchanger and fill the plate type heat exchanger
with a water mixed with 1~2% of sodium hydroxide or sodium bicarbonate. Circulate the water mixture for 15~20
minutes to neutralize.
- After neutralizing the pipes, rinse the plate type heat exchanger with distilled water.
- If you are using the detergent sold at local retail stores, make sure that it doesn't cause any corrosion to the stainless
steel or copper.
- For detail information on cleaning method (and proper use of detergent), contact the detergent manufacturer.
3. After cleaning, check to see if it is possible to operate normally.
Maintenance
Recommended number of inspection for normal operation
Inspection list
Inspection standard
Number of inspection
Side effects when
inadequate
Once a week
Corrosion, water scale or
slime may occur
Once a month
Corrosion, water scale or
slime may occur
Once a year (before
winter season)
-
Once a month
Corrosion, water scale or
slime may occur
Daily
Operation problem at the
cooling tower or intensified
water concentration
Have you set the electric conductivity value
properly?
Forced drainage
Is electric conductivity sensor working properly?
Is auto valve working properly?
Is cooling water corrupted or have floating
particles?
Cooling water
and water quality
inspection
Is there rust water?
Is there any red tides?
Is the concentration of the antifreeze being
maintained?
Internal/external
part of the cooling
tower
Is there any water scale or slime?
Is there any signs of corrosion on the metal part?
Is there any water plant?
Have you set the make-up water supply value
properly?
Heat source water
device
Is there any excess or deficiency of the make-up
water?
Is the water level within the tank normal for
operation?
ENGLISH-102
Cooling water management
Standard
value
Heat source
water
Make-up water
Corrosion
Scale
pH[25 °C]
7.0~8.0
7.0~8.0
❍
❍
Electric conductivity [25 °C]
(mS/m)
30 or below
30 or below
❍
❍
Chloride ion (mg Cl-/L)
50 or below
50 or below
❍
Sulfate ion (mg S042-/L)
50 or below
50 or below
❍
M alkali level [pH 4.8](mg
CaCo3/L)
50 or below
50 or below
❍
Total hardness (mg CaCo3/L)
70 or below
70 or below
❍
Calcium hardness (mg
CaCo3/L)
50 or below
50 or below
❍
30 or below
30 or below
Iron (mg Fe/L)
1.0 or below
0.3 or below
❍
Copper (mg Cu/L)
1.0 or below
1.0 or below
❍
Not to be
detected
Not to be
detected
❍
Ammonium ion (mg NH /L)
0.3 or below
0.1 or below
❍
Residual chlorine (mg Cl/L)
0.25 or below
0.3 or below
❍
Free carbon dioxide (mg
CO2/L)
0.4 or below
0.4 or below
❍
Stability index
-
-
❍
Sulfate ion (mg S /L)
CAUTION
+
4
Recommended
number for water
quality inspection
Twice a month
Once a month
❍
Ionized silica (mg SiO2/L)
2-
Reference
Effects
Item
❍
Once a month
❍
• Circle (O) denotes the factor relevant to corrosion or water scale.
• When the water temperature is over 40˚C, steel without protective coating may corrode when exposed to water.
Applying corrosion prevention material or degassing can be an effective measure to prevent corrosion.
• For the cooling water and the make-up water, used under closed circuit water system with closed circuit cooling
tower, should satisfy the standard shown in above table.
• Supplied water or make-up water should be tap water, industrial water or groundwater. Purified water,
neutralized water and softened water should not be supplied.
• 15 items in the above table is a typical factor for corrosion and/or water scale.
ENGLISH-103
OTHERS
Closed circuit system
Classification
03
1. Standard of cooling water quality for air conditioning and the number of water quality inspection
❋ Make sure to comply the standard for water quality management.
fCooling water with high level of foreign substances can cause pipe corrosion or creation of water scale which effects the
product's performance and lifespan. (Use the appropriate heat source water according to the below table) If the system
water is sourced from anything other than the local water supply, make sure to check the quality of water.
❋ For water quality management on the heat source water of closed circuit water cooling must be done according to the
below table. If the water quality is not managed according to the below table, it may decrease the performance of air
conditioner and cause serious problem on the product.
Cooling water management
2. Operation range of water
fWhen the flowrate of cooling water is out of the operation range, stop the outdoor unit and take care of the cause before
re-start the operation (Operation range : 60~120% of the standard the flowrate of cooling water)
Standard condition
Section
Flowrate of cooling water (L/min)
Cooling
Heating
AM080FXWA✴✴
AM100FXWA✴✴
AM120FXWA✴✴
AM200FXWA✴✴
AM300KXWA✴✴
80
96
114
190
285
Operation range
Section
Flowrate of cooling water (L/min)
Cooling
Heating
AM080FXWA✴✴
AM100FXWA✴✴
AM120FXWA✴✴
AM200FXWA✴✴
AM300KXWA✴✴
48~96
58~115
68~137
114~228
170~342
90
70
AM080FXWA✴✴
AM100FXWA✴✴
AM120FXWA✴✴
60
50
40
30
20
10
0
0
50.0
100.0
150.0
Cooling Water Pressure Drop (kPa)
Cooling Water Pressure Drop (kPa)
80
Flowrate of cooling water (L/min)
Cooling Water Pressure Drop (kPa)
AM300KXWA✴✴
60
50
40
30
20
10
0
0
100
200
300
AM200FXWA✴✴
70
60
50
40
30
20
10
0
0
50
100
150
200
Flowrate of cooling water (L/min)
80
70
80
400
Flowrate of cooling water (L/min)
ENGLISH-104
250
Ethylene glycol
Propylene glycol
Concentration [% Wt.]
Freezing temperature
Density [kg/m3]
10
-3.2
1014.87
20
-7.8
1031.39
30
-14.1
1047.07
40
-22.3
1061.65
10
-3.3
1009.75
20
-7.1
1020.91
30
-12.7
1030.51
40
-21.1
1038.65
ENGLISH-105
OTHERS
Type of brine
03
3. Ground heat exchanger circulation water (anti-freeze) usage standard (mandatory checklist)
When using ground heat source, use anti-freeze to manage the freezing point. If you do not use anti-freeze, it will cause the
pipes to freeze and burst. Note that the manufacturer does not take responsibility for any damage caused.
1) All the circulating water (anti-freeze) and additives (corrosion inhibitor, bacteria inhibitor, foam inhibitors) must
be used after consulting with the business ordering party or supervisor for its impact on environment, toxicity,
corrosiveness, harmfulness to human and management plan.
2) Contractor must take extra care regarding on handling, packaging and transporting regulations and procedure of the
anti-freeze.
3) Do not use the anti-freeze that is harmful to humans or equipment. In addition, anti-freeze must be injected to the
pipe according to specification and concentration level that is actually required by system. (Do not directly inject
undiluted solution, consult business ordering party or supervisor when undiluted solution was brought to the site)
4) Before injecting the anti-freeze, evacuate any air that may remain in the system and apply pressure to check for
leakage.
5) User must monitor and manage periodically to maintain initially designed concentration level of the anti-freeze.
If the concentration level decrease due to leakage or over certain period of time, it may cause due to pipe to freeze
and burst.
6) Usage condition of the anti-freeze when ground heat exchanger is installed (mandatory)
- Flash point: Flash point of the anti-freeze must be over 90 °C.
- Biochemical oxygen demand: Amount of oxygen in 1 g of anti-freeze at 10 °C must be within 0.1~0.2 g and this
value must be maintained for 5 days.
- Freezing point: Concentration level of the anti-freeze must be maintained above freezing temperature.
- Toxicity: LD50 per each 1 kg of anti-freeze must be less than 5 g.
- Storage stability: It must not be separate when heated or cooled, and also turbidity should not be increased.
- Corrosion resistance: It must be corrosion resistant to all the metallic material used for ground heat pumps and
pipes.
- Scale: Scale that has been accumulated on the plate type heat exchanger for one year of performance should not
cause performance decrease over 15%.
4. Standard data for status of Anti-freeze (Based on temperature of anti-freeze at 15 °C)
Appendix
Model specification (Weight and dimension)
Type
Outdoor unit
Model
Net weight
Net dimension(W*H*D)
AM080FXWANR
160.0 kg
770*1000*545 mm
AM100FXWANR
160.0 kg
770*1000*545 mm
AM120FXWANR
160.0 kg
770*1000*545 mm
AM200FXWANR
240.0 kg
1100*1000*545 mm
AM300KXWANR
282.0 kg
1100*1000*545 mm
ENGLISH-106
SAMSUNG ELECTRONICS CO., LTD.
107, Hanamsandan 6beon-ro, Gwangsan-gu, Gwangju-si, Korea 62218
4BNTVOH&MFDUSPOJDT
Service Department
PO Box 12987, Blackrock, Co. Dublin. Ireland
or
Blackbushe Business Park, Yateley, GU46 6GG. UK
This product is RoHS compliant
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