Mitsubishi Heavy Industries FDT200VSAWPVH Service Manual page 166

5.3 Installation of outdoor unit
Models FDC200VSA-W, 250VSA-W, 280VSA-W
◎This installation manual deals with outdoor units and general installation specifications only. For indoor units, refer to page 131.
◎When install the unit, be sure to check whether the selection of installation place, power supply specifications, usage limitation (piping length, height
differences between indoor and outdoor units, power supply voltage and etc.) and installation spaces
●
We recommend you to read this "SAFETY PRECAUTIONS" carefully before the installation work in order to gain full advantage of the functions of the unit and to
avoid malfunction due to mishandling.
● The precautions described below are divided into
death or serious personal injury due to erroneous handling are listed in the
damage of the unit due to erroneous handling including probability leading to serious consequences in some cases are listed in
very important precautions for safety. Be sure to observe all of them without fail.
● The meaning of "Marks" used here are as shown below.
Never do it under any circumstance.
● For 3 phase power supply outdoor unit,EN61000-3-2 is not applicable if consent by the utility company or nortification to the utility company is given before usage.
●
3 phase power supply unit, both indoor and outdoor, is suitable for installation in a commercial and light industrial environment. If installed as a house-hold
appliance it could cause electromagnetic interference.
●
Be sure to confirm no anomaly on the equipment by commissioning after completed installation and explain the operating methods as well as the maintenance
methods of this equipment to the user according to the owner's manual.
●
Keep the installation manual together with owner's manual at a place where any user can read at any time. Moreover if necessary, ask to hand them to a new user.
● 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, substandard
performance, control failure and personal injury.
● When installing in small rooms, take prevention measures not to exceed the density limit of refrigerant
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.
In case of R32, the refrigerant could be ignited because of its flammability.
● 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.
● The electrical installation must be carried out by the qualified electrician in accordance with "the norm for electrical work" and "national
wiring regulation", and the system must be connected to the dedicated circuit.
Power supply with insufficient capacity and incorrect function done by improper work can cause electric shocks and fire,
● Be sure to shut off the power before starting electrical work.
Failure to shut off the power can cause electric shocks, unit failure or incorrect function of equipment.
● Be sure to use the cables conformed to safety standard and cable ampacity for power distribution work.
Unconformable cables can cause electric leak, anomalous heat production or fire.
● Use the prescribed cables for electrical connection, tighten the cables securely in terminal block and relieve the cables correctly to prevent
overloading the terminal blocks.
Loose connections or cable mountings can cause anomalous heat production or fire.
● Arrange the wiring in the control box so that it cannot be pushed up further into the box. Install the service panel correctly.
Incorrect installation may result in overheating and fire.
● Do not perform brazing work in the airtight room
It can cause lack of oxygen.
● Use the prescribed pipes, flare nuts and tools for R32.
Using existing parts (for R22 or R407C) can cause the unit failure and serious accidents due to burst of the refrigerant circuit.
● Carry out the electrical work for ground lead with care
Do not connect the ground lead to the gas line, water line, lightning conductor or telephone line's ground lead. Incorrect grounding can cause unit faults such as
electric shocks due to short-circuiting. Never connect the grounding wire to a gas pipe because if gas leaks,it could cause explosion or ignition.
● Use the circuit breaker for all pole with correct capacity.
Using the incorrect circuit breaker, it can cause the unit malfunction and fire.
● Install isolator or disconnect switch on the power supply wiring in accordance with the local codes and regulations.
The isolator should be locked in accordanced with EN60204-1．
● Take care when carrying the unit by hand.
If the unit 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.
● Pay attention not to damage the drain pan by weld spatter when welding work is done near the indoor unit.
If weld spatter entered into the indoor unit during welding work, it can cause pin-hole in drain pan and result in water leakage. To prevent such damage, keep the indoor unit in its packing or cover it.
● 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.
● Earth leakage breaker must be installed
If the earth leakage breaker is not installed, it can cause fire or electric shocks.
● Do not use any materials other than a fuse with the correct rating in the location where fuses are to be used.
Connecting the circuit with copper wire or other metal thread can cause unit failure and fire.
● Do not install the unit 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 unit 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.
● When the outdoor unit is installed on a roof or a high place, provide permanent ladders and handrails along the access route and fences and handrails around the outdoor unit.
If safety facilities are not provided, it can cause 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 outdoor unit in a location where insects and small animals can inhabit.
Insects and small animals can enter the electric parts and cause damage or fire. Instruct the user to keep the surroundings clean.
● Do not use the base flame for outdoor unit which is corroded or damaged due to long periods of operation.
Using an old and damage base flame can cause the unit falling down and cause personal injury.
Notabilia as a unit designed for R32
●
Do not use any refrigerant other than R32. R32 will rise to pressure about 1.6 times higher than that of a conventional refrigerant.
A cylinder containing R32 has a light blue indication mark on the top.
● A unit designed for R32 has adopted a different size indoor unit operation valve charge port and a different size check joint provided in the unit to prevent the charging of a wrong refrigerant by mistake. The
processed dimension of the flared part of a refrigerant pipe and a flare nut's parallel side measurement have also been altered to raise strength against pressure. Accordingly, you are required to arrange dedicated
R32 tools listed in the table on the right before installing or servicing this unit.
●
All indoor units must be models designed exclusively for R32. Check connectable indoor unit models in a catalog, etc. (A wrong indoor unit, if connected into the system, will impair proper system operation)
SAFETY PRECAUTIONS
WARNING CAUTION
and . The matters with possibilities leading to serious consequences such as
WARNING and the matters with possibilities leading to personal injury or
Always do it according to the instruction
in the event of leakage
[ Accessory ]
. These are
CAUTION
●
●
●
●
WARNING
● 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
● 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 unit.
Incorrect installation can cause water leaks, electric shocks or fire.
● Stop the compressor before closing valve and disconnecting refrigerant pipes in case of pump down operation.
If disconnecting refrigerant pipes in state of opening service valves before compressor stopping, you may incur frost bite or
injury from an abrupt refrigerant outflow and air can be sucked, which can cause burst or personal injury due to anomalously
high pressure in the refrigerant circuit
● Be sure to wear protective goggles and gloves while at work.
● This unit is designed specifically for R32.
Using any other refrigerant can cause unit failure and personal injury.
● Ensure that no air enters in the refrigerant circuit when the unit 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 unit 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.
● Do not process or splice the power cord, or share the socket with other power plugs.
This may cause fire or electric shock due to defecting contact, defecting insulation and over-current etc.
● Do not bundle or wind or process the power cord. Do not deform the power cord by treading it.
This may cause fire or heating.
CAUTION
● Do not install the unit 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 (e.g. organic fertilizer).
・ Locations with calcium chloride (e.g. snow melting agent).
・ Locations where heat radiation from other heat source can affect the unit
・ Locations without good air circulation.
・ Locations with any obstacles which can prevent inlet and outlet air of the unit
・ Locations where short circuit of air can occur (in case of multiple units installation)
・ Locations where strong air blows against the air outlet of outdoor unit
It can cause remarkable decrease in performance, corrosion and damage of components, malfunction and fire.
● Do not install the outdoor unit in the locations listed below.
・ Locations where discharged hot air or operating sound of the outdoor unit can bother neighborhood.
・ Locations where outlet air of the outdoor unit blows directly to an animal or plants. The outlet air can affect adversely to the plant etc.
・ Locations where vibration can be amplified and transmitted due to insufficient strength of structure.
・ Locations where vibration and operation sound generated by the outdoor unit can affect seriously. (on the wall or at the place near bed room)
・ Locations where an equipment affected by high harmonics is placed. (TV set or radio receiver is placed within 5m)
・ Locations where drainage cannot run off safely.
It can affect surrounding environment and cause a claim
● Do not use the unit 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 buttons with wet hands
It can cause electric shocks
● 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 clean up the unit with water
It can cause electric shocks
● Do not operate the outdoor unit 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 outdoor unit.
You may incur injury from a drop or fall.
● Do not touch the suction or aluminum fin on the outdoor unit.
This may cause injury.
165
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'21 • PAC-SM-383
Inverter driven split PAC
FDC200VSA-W, FDC250VSA-W, FDC280VSA-W
Designed for R32 refrigerant
Check before installation work
Edging Accessory pipe
1 piece 1 piece
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knock-out hole
protection Accessory pipe A
Model name and power supply
Refrigerant piping length
Piping, wiring and miscellaneous small parts
Indoor unit installation manual
Dedicated R32 tools
a） Gauge manifold
b） Charge hose
c） Electronic scale for refrigerant charging
d） Torque wrench
e） Flare tool
f） Protrusion control copper pipe gauge
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Vacuum pump adapter
h） Gas leak detector
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