CEILING DUCT TYPE AIR CONDITIONERS
INSTALLATION INSTRUCTIONS
(Refrigerant : R407C)
•This unit is charged with new refrigerant, R407C.
•Be sure to use proper tools for R407C, when installing the unit.
•Please read this instruction sheet completely before installing the product.
•When the power cord is damaged, replacement work shall be performed by authorized personnel only.
•Installation work must be performed in accordance with the national wiring standards by authorized personnel only.
Indoor Unit |
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Air outlet vents |
Air filters |
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Air intake vents |
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Remote Controller |
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Outdoor Unit |
(Side) |
(Rear) |
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Air intake vents |
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Air outlet vents |
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Control cover |
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(Side) |
(Rear) |
Connecting wire |
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Piping |
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Air intake |
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Drain hose |
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vents |
Control Cover |
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Air outlet |
Connecting Wire |
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vents |
Connection Pipe |
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Drain Hose |
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P/No.:MFL65000405 |
OUT-LINE OF INSTALLATION |
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1. The following should be always observed for safety |
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Installation works |
Installation Parts |
Required tools |
2. Installation of Indoor, Outdoor unit
1) |
Selection of the best |
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• Four Type “A” screws |
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location............................ |
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• Connecting cable |
2) |
Indoor unit installation.... |
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•Level
•Screw driver
•Electric drill
•Hole core drill (ø70mm)
3. Connecting Pipes to the Indoor Unit
1) Preparation of Piping...14 |
• Pipes: Gas side |
5 8 |
3 4 |
• Flaring Tools set |
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..... / ", |
/ " |
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Liquid side ............. |
1/4", 3/8", 1/2" |
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•Insulated drain hose
•Insulation materials
4.Connecting Pipes to the Outdoor Unit
1) Connecting the pipes to |
• Additional Drain hose |
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the Outdoor Unit .......... |
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(Inner Dia............... |
25mm) |
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5. |
Checking the Drainage .............................................................................. |
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6. |
Connecting Cables between Indoor Unit and Outdoor Unit |
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1) |
Connecting cables to the |
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• Screw driver |
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Indoor Unit ................... |
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2) |
Clamping of cables ...... |
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3) |
Connecting cables to the |
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Outdoor Unit ................ |
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4) |
Form the pipings .......... |
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7. |
Air Purging of the Connecting Pipes and the Indoor Unit .................... |
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• Hexagonal Wrench (4mm/5mm) |
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• Gas-leak Detector |
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8. |
Group Control ............................................................................................ |
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9. |
Two Thermistor System |
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10. E.S.P (External Static Pressure) Setting................................................ |
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10. How to Set E.S.P...................................................................................... |
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2
1.The following should be always observed for safety
•Please report to or take consent by the supply authority before connecting to the system.
•Be sure to read "THE FOLLOWING SHOULD BE ALWAYS OBSERVED FOR SAFETY" before installing the air conditioner.
•Be sure to observe the cautions specified here as they include important items related to safety.
•The indications and meanings are as follows.
WARNING Could lead to death, serious injury, etc.
CAUTION Could lead to serious injury in particular environments when operated incorrectly.
•After reading this manual, be sure to keep it together with the owner's manual in an accessible place.
WARNING
Do not install it yourself (customer).
•Incomplete installation could cause injury due to fire, electric shock, the unit falling or a leakage of water. Consult the dealer from whom you purchased the unit or special installer.
Install the unit securely in a place which can bear the weight of the unit.
•When installed in an insufficient strong place, the unit could fall causing injured.
Use the specified wires to connect the indoor and the outdoor units securely and attach the wires firmly to the terminal board connecting sections so the stress of the wires is not applied to the sections.
• Incomplete connecting and fixing could cause fire.
Check that the refrigerant gas do not leak after installation is completed.
Perform the installation securely referring to the installation manual.
•Incomplete installation could cause a personal injury due to fire, electric shock, the unit falling or a leakage of water.
Perform electrical work according to the installation manual and be sure to use an exclusive circuit.
•If the capacity of the power circuit is insufficient or there is incomplete electrical work, it could result in a fire or an electric shock.
Attach the electrical part cover to the indoor unit and the service panel to the outdoor unit securely.
•If the electrical part cover if the indoor unit and/or the service panel if the outdoor unit are not attached securely, it could result in a fire or electric shock due to dust, water, etc.
Be sure to use the part provided or specified parts for the installation work.
•The use of defective parts could cause an injury or leakage of water due to a fire, electric shock, the unit falling, etc.
CAUTION
Perform the drainage/piping work securely according to the installation manual.
•If there is a defect in the drainage/piping work, water could drop from the unit and household goods could be wet and damaged.
Do not install the electric heater
•Electric heater may cause deformation or fire of blower and housing which were made of plastic.
Do not install the unit in a place where an inflammable gas leaks.
•If gas leaks and accumulates in the area surrounding the unit, it could cause an explosion.
3
2. Installation of Indoor, Outdoor Unit |
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1. Selection of the best location |
Top view |
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Inspection hole |
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1) Indoor unit |
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(600X600) |
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(unit: mm) |
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Control box |
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Select location |
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Install the air conditioner in the location that |
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satisfies the following conditions. |
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600 |
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<![if ! IE]> <![endif]>1000 |
600 |
• The place shall easily bear a load exceeding |
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four times the indoor unit’s weight. |
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Front |
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• The place shall be able to inspect the unit as |
Front view |
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the figure. |
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• The place where the unit shall be leveled. |
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• The place shall allow easy water |
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drainage.(Suitable dimension “H” is necessary |
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H |
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to get a slope to drain as figure.) |
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Sun |
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• The place shall easily connect with the |
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outdoor unit. |
More |
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• The place where the unit is not affected by an |
30cm |
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oof |
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electrical noise. |
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• The place where air circulation in the room will |
Fence |
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• There should not be any heat source or steam |
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be good . |
obstacles |
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30cm |
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near the unit |
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or |
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More than |
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2) Outdoor unit |
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More than |
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70cm |
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• If an awning is built over the unit to prevent |
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Sunr |
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direct sunlight or rain exposure, be careful |
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that heat radiation from the condenser is not |
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restricted. |
More |
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oof |
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• There should not be any animals or plants |
30cm |
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which could be affected by hot air |
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discharged. |
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• Ensure the spaces indicated by arrows from |
obstacles |
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30cm |
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the wall, ceiling, fence or other obstacles. |
Fence |
or |
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More than |
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3) Piping length and the elevation |
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More than |
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70cm |
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Pipe Size |
Length A(m) |
Elevation B(m) |
*Additional |
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Capacity |
(Diameter: Ø) |
refrigerant |
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Gas |
Liquid |
Standard |
Max. |
Standard |
Max. |
(g/m) |
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18K BTU/h |
5/8" |
1/4" |
7.5 |
30 |
5 |
15 |
15 |
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24K BTU/h |
5/8" |
1/4" |
7.5 |
30 |
5 |
15 |
25 |
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30K BTU/h |
5/8" |
1/4" |
7.5 |
30 |
5 |
15 |
35 |
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36K BTU/h |
5/8" |
3/8" |
7.5 |
30 |
5 |
15 |
30 |
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42K BTU/h |
5/8" |
3/8" |
7.5 |
30 |
5 |
15 |
30 |
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48K BTU/h |
5/8" |
3/8" |
7.5 |
30 |
5 |
15 |
45 |
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60K BTU/h |
3/4" |
1/2" |
7.5 |
30 |
5 |
15 |
75 |
•If 18K Model is installed at a distance of 15m, 112.5g of refrigerant should be added (15-7.5) x 15g = 112.5g
•Capacity is based on standard length and maximun allowance length is on the basis of reliability.
•Improper refrigerant charge may result in abnormal cycle.
Indoor unit
A
B
Outdoor unit
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2. Indoor unit installation
■Installation of Unit
Install the unit above the ceiling correctly.
CASE 1
POSITION OF SUSPENSION BOLT
•Apply a joint-canvas between the unit and duct to absorb unnecessary vibration.
•Apply a filter Accessory at air return hole.
(Unit:mm)
Dimension |
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Capacity |
A |
B |
C |
D |
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F |
(G) |
H |
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18K BTU/h |
932 |
880 |
355 |
45.5 |
450 |
30 |
87 |
750 |
160 |
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24K BTU/h |
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30K BTU/h |
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36K BTU/h |
1233 1180 |
355 |
45.5 |
450 |
30 |
87 |
830 |
184 |
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42K BTU/h |
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48K BTU/h |
1281 1230 |
477 |
56 |
590 |
30 |
120 |
1004 294 |
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60K BTU/h |
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CASE 2
•Install the unit leaning to a drainage hole side as a figure for easy water drainage.
POSITION OF CONSOLE BOLT
•A place where the unit will be leveled and that can support the weight of the unit.
•A place where the unit can withstand its vibration.
•A place where service can be easily performed.
A |
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B |
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<![if ! IE]> <![endif]>C E |
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<![if ! IE]> <![endif]>D |
(G) |
<![if ! IE]> <![endif]>F |
<![if ! IE]> <![endif]>I |
<![if ! IE]> <![endif]>1~3mm |
H |
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Drainage hole |
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M10 Nut |
X 4 |
(Local |
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M10 SP. washer X 4 |
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supply) |
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M10 washer |
X 4 |
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M10 washer |
X 4 |
(Local |
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M10 SP. washer X 4 |
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supply) |
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M10 Nut |
X 4 |
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•Select and mark the position for fixing bolts.
•Drill the hole for set anchor on the face of ceiling.
•Insert the set anchor and washer onto the suspension bolts for locking the suspension bolts on the ceiling.
•Mount the suspension bolts to the set anchor firmly.
•Secure the installation plates onto the suspension bolts (adjust level roughly) using nuts, washers and spring washers.
CAUTION
prevent
Old building |
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New building |
1 |
Set anchor |
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2 |
Plate washer |
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3 |
Spring washer |
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Nut |
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5 Suspension |
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bolts |
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• Local supply |
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Set anchor |
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Plate washer |
- M10 |
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Spring washer |
- M10 |
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Nut |
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- W3/8 or M10 |
Suspension bolt |
- W3/8 or M10 |
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CAUTION
1.Install declination of the indoor unit is very important for the drain of the duct type air conditioner.
2.Minimum thickness of the insulation for the connecting pipe shall be 5mm.
Front of view
•The unit must be horizontal or declined to the drain hose connected when finished installation.
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Ceiling |
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<![if ! IE]> <![endif]>1~3mm |
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CORRECT |
Drainage hole |
INCORRECT |
Drainage hole |
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CAUTION FOR GRADIENT OF UNIT AND DRAIN PIPING
Lay the drain hose with a downward inclination so water will drain out.
•Always lay the drain with downward inclination (1/50 to 1/100).
Prevent any upward flow or reverse flow in any part.
•5mm or thicker formed thermal insulator shall always be provided for the drain pipe.
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Thermal insulator |
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(Local supply) |
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Drainage pipe |
Unit |
(Local supply) |
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Make sure to be closed. |
Drainage hole |
• Upward routing not allowed
CORRECT |
INCORRECT |
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Applied U-Trap Dimension |
•Install the P-Trap (or U-Trap) to prevent a water leakage caused by the blocking of intake air filter.
A ≥ 70mm |
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B ≥ 2C |
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C ≥ 2 x SP |
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SP = External Pressure |
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(mmAq) |
C |
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Ex) External Pressure |
U-Trap |
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= 10mmAq |
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A |
≥ 70mm |
A |
B |
≥ 40mm |
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C |
≥ 20mm |
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• Drill the piping hole with 70mm dia, hole |
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WALL |
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core drill. |
Indoor |
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Outdoor |
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•Piping hole should be slightly slant to the outdoor side.
5~7mm
INSULATION, OTHERS
Insulate the joint and tubes completely.
THERMAL INSULATION All thermal insulation must comply with local requirement.
INDOOR UNIT
Union for liquid pipe
Refrigerant pipe and thermal
insulator(Local supply)
Hose clip for thermal insulator (Local supply)
Thermal insulator for refrigerant pipe (Local supply)
Union for gas pipe
Thermal insulator for refrigerant pipe (Local supply)
Overlap with thermal
insulator for piping.
Hose clip for thermal insulator(Local supply) Make sure that there is no clearance here.
REFRIGERANT PIPE
•Insulate and tape both the gas piping and liquid piping.
TEST AND CHECK
Power cable |
Tape |
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Liquid pipe |
Gas pipe |
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Thermal insulator |
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■ After all workings are finished, check the working and operation.
• Air distribution |
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Is the air circulation good? |
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• Drain |
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Is the drainage smoothly and no sweating? |
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• Gas leakage |
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Is the piping connection correctly? |
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• Wiring |
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Is the wiring connection correctly? |
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• Lock-bolt |
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Is the lock-bolt of compressor loosened? |
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