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53
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'11 • KX-T-166
Read these “Precautions for safety” carefully before starting installation work and do it in the proper way.
Safety instructions listed here are grouped into Warnings and Cautions . If a non-compliant installation method is likely to result in a serious consequence such as death or major
injury, the instruction is grouped into Warnings to emphasize its importance. However, a failure to observe a safety instruction listed under Cautions can also result in a serious
consequence depending on the circumstances. Please observe all these instructions, because they include important points concerning safety.
When you have completed installation work, perform a test run and make sure that the installation is working properly. Then, explain the customer how to operate and how to take care of
the air-conditioner according to the user’s manual. Please ask the customer to keep this installation manual together with the user’s manual.
2
Confirmation of accessory
1
Install the service valve kit when carrying out the washing operation utilizing existing pipes.
For the outdoor units which can use this kit, refer to the technical data – Installation manual of outdoor unit.
B
PCB012D021A
Installation
manual
Check sheet
Gasket
2 pcs.
1350
215
476
506
27
62
160
500
Hole for 4- anchor bolt
Connecting hole (ø25.4) fo
r
pipe at refrigerant gas side
(T
o indoor unit)
Connecting hole (ø25.4) for
pipe at refrigerant gas side
Service space (Necessary
for washing operation)
Secure also an overhead
space sufficient for working
in a standing position.
To outdoor unit
WARNING
CAUTION
•Take care when carrying the unit by hand.
If the kit weights more than 20kg, it must be carried by two or more persons. Do not carry by the plastic straps, always use the
carry handle when carrying the unit by hand. Use gloves to minimize the risk of cuts by the aluminum fins.
•Dispose of any packing materials correctly.
Any remaining packing materials can cause personal injury as it contains nails and wood. And to avoid danger of suffocation, be
sure to keep the plastic wrapper away from children and to dispose after tear it up.
•Be sure to insulate the refrigerant pipes so as not to condense the ambient air moisture on them.
Insufficient insulation can cause condensation, which can lead to moisture damage on the ceiling, floor, furniture and any other
valuables.
•Be sure to perform air tightness test by pressurizing with nitrogen gas after completed refrigerant piping work.
If the density of refrigerant exceeds the limit in the event of refrigerant leakage in the small room, lack of oxygen can occur, which
can cause serious accidents.
•Perform installation work properly according to this installation manual.
Improper installation can cause abnormal vibrations or increased noise generation.
•Do not install the kit near the location where leakage of combustible gases can occur.
If leaked gases accumulate around the unit, it can cause fire.
•Do not install the kit where corrosive gas (such as sulfurous acid gas etc.) or combustible gas (such as thinner and petroleum
gases) can accumulate or collect, or where volatile combustible substances are handled.
Corrosive gas can cause corrosion of heat exchanger, breakage of plastic parts and etc. And combustible gas can cause fire.
•Secure a space for installation, inspection and maintenance specified in the manual.
Insufficient space can result in accident such as personal injury due to falling from the installation place.
•Do not install nor use the system close to the equipment that generates electromagnetic fields or high frequency harmonics
Equipment such as inverters, standby generators, medical high frequency equipments and telecommunication equipments can
affect the system, and cause malfunctions and breakdowns. The system can also affect medical equipment and
telecommunication equipment, and obstruct its function or cause jamming.
•Do not install the kit in the locations listed below
• Locations where carbon fiber, metal powder or any powder is floating.
• Locations where any substances that can affect the unit such as sulphide gas, chloride gas, acid and alkaline can occur.
• Vehicles and ships
• Locations where cosmetic or special sprays are often used.
• Locations with direct exposure of oil mist and steam such as kitchen and machine plant.
• Locations where any machines which generate high frequency harmonics are used.
• Locations with salty atmospheres such as coastlines
• Locations with heavy snow (If installed, be sure to provide base flame and snow hood mentioned in the manual)
• Locations where the unit is exposed to chimney smoke
• Locations at high altitude (more than 1000m high)
• Locations with ammonic atmospheres
• Locations where heat radiation from other heat source can affect the unit
• Locations without good air circulation.
It can cause remarkable decrease in performance, corrosion and damage of components, malfunction and fire.
•Do not use the kit for special purposes such as storing foods, cooling precision instruments and preservation of animals, plants or
art. It can cause the damage of the items.
•Do not touch any refrigerant pipes with your hands when the system is in operation.
During operation the refrigerant pipes become extremely hot or extremely cold depending the operating condition, and it can cause
burn injury or frost injury.
•Do not operate the kit with any article placed on it.
You may incur property damage or personal injure from a fall of the article.
•Do not step onto the kit.
You may incur injury from a drop or fall.
•Installation must be carried out by the qualified installer.
If you install the system by yourself, it may cause serious trouble such as water leaks, electric shocks, fire and personal injury,
as a result of a system malfunction.
•Install the system in full accordance with the instruction manual.
Incorrect installation may cause bursts, personal injury, water leaks, electric shocks and fire.
•Use the original accessories and the specified components for installation.
If parts other than those prescribed by us are used, It may cause fall of the unit, water leaks, electric shocks, fire, refrigerant
leak, substanard performance, contrl failure and personal injury.
•When installing in small rooms, take prevention measures not to exceed the density limit of refrigerant in the event of leakage
accordance with ISO5149.
Consult the expert about prevention measures. If the density of refrigerant exceeds the limit in the event of leakage, lack of
oxygen can occur, which can cause serious accidents.
•Ventilate the working area well in the event of refrigerant leakage during installation.
If the refrigerant comes into contact with naked flames, poisonous gas is produced.
•After completed installation, check that no refrigerant leaks from the system.
If refrigerant leaks into the room and comes into contact with an oven or other hot surface, poisonous gas is produced.
•Hang up the unit at the specified points with ropes which can support the weight in lifting for portage. And to avoid jolting out
of alignment, be sure to hang up the unit at 4-point support.
An improper manner of portage such as 3-point support can cause death or serious personal injury due to falling of the unit.
•Install the unit in a location with good support.
Unsuitable installation locations can cause the unit to fall and cause material damage and personal injury.
•Ensure the unit is stable when installed, so that it can withstand earthquakes and strong winds.
Unsuitable installation locations can cause the unit to fall and cause material damage and personal injury.
•Be sure not to reuse existing refrigerant pipes
Conventional refrigerant oil or chlorine contained in the conventional refrigerant which is remaining in the existing refrigerant
pipes can cause deterioration of refrigerant oil of new unit. And 1.6 times higher pressure of R410A refrigerant than
conventional one can cause burst of existing pipe, personal injury or serious accident.
•Do not perform brazing work in the airtight room
It can cause lack of oxygen.
•Use the prescribed pipes, flare nuts and tools for R410A.
Using existing parts (for R22 or R407C) can cause the unit failure and serious accidents due to burst of the refrigerant circuit.
•Tighten the flare nut by using double spanners and torque wrench according to prescribed method. Be sure not to tighten the
flare nut too much.
Loose flare connection or damage on the flare part by tightening with excess torque can cause burst or refrigerant leaks which
may result in lack of oxygen.
•Do not open the service valves for liquid line and gas line until completed refrigerant piping work, air tightness test and
evacuation.
If the compressor is operated in state of opening service valves before completed connection of refrigerant piping work, you
may incur frost bite or injury from an abrupt refrigerant outflow and air can be sucked into refrigerant circuit, which can cause
burst or personal injury due to anomalously high pressure in the refrigerant.
•Do not put the drainage pipe directly into drainage channels where poisonous gases such as sulphide gas can occur.
Poisonous gases will flow into the room through drainage pipe and seriously affect the user's health and safety. It can also
cause the corrosion of the indoor unit and resultant unit failure or refrigerant leak.
•Only use prescribed optional parts. The installation must be carried out by the qualified installer.
If you install the system by yourself, it can cause serious trouble such as water leaks, electric shocks, fire.
•Do not perform any change of protective device itself or its setup condition
The forced operation by short-circuiting protective device of pressure switch and temperature controller or the use of non
specified component can cause fire or burst.
•Be sure to switch off the power supply in the event of installation, inspection or servicing.
If the power supply is not shut off, there is a risk of electric shocks, unit failure or personal injury due to the unexpected start of
fan.
•Consult the dealer or an expert regarding removal of the kit.
Incorrect installation can cause water leaks, electric shocks or fire.
•Ensure that no air enters in the refrigerant circuit when the kit is installed and removed.
If air enters in the refrigerant circuit, the pressure in the refrigerant circuit becomes too high, which can cause burst and
personal injury.
•Do not run the kit with removed panels or protections
Touching rotating equipments, hot surfaces or high voltage parts can cause personal injury due to entrapment, burn or electric
shocks.
•Be sure to fix up the service panels.
Incorrect fixing can cause electric shocks or fire due to intrusion of dust or water.
•Do not perform any repairs or modifications by yourself. Consult the dealer if the unit requires repair.
If you repair or modify the unit, it can cause water leaks, electric shocks or fire.
1. BEFORE BEGINNING INSTALLATION
To outdoor unit
(for M10 bolt)
(To outdoor unit)
To indoor unit
To indoor unit
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6.7 Service valve kit Installation Manual
