Haulage And Installation; When A Unit Is Hoisted With Slings For Haulage, Take Into Consideration The Offset Of Its Gravity; Center Position. If Not Properly Balanced, The Unit Can Be Thrown Off-Balance And Fall; The Right Hand Side Of The Unit As Viewed From The Front (Diffuser Side) Is Heavier - Mitsubishi Heavy Industries FDE40ZMXVG Technical Manual

● 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.
● 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 source 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.
Notabilia as a unit designed for R410A
●
Do not use any refrigerant other than R410A. R410A will rise to pressure about 1.6 times higher than that of a conventional refrigerant.
A cylinder containing R410A has a pink indication mark on the top.
● A unit designed for R410A has adopted a different size indoor unit service 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
R410A tools listed in the table on the right before installing or servicing this unit.
● Do not use a charge cylinder. The use of a charge cylinder will cause the refrigerant composition to change, which results in performance degradation.
● In charging refrigerant, always take it out from a cylinder in the liquid phase.
●
All indoor units must be models designed exclusively for R410A. Check connectable indoor unit models in a catalog, etc. (A wrong indoor unit, if connected into the system, will impair proper system operation)
1. HAULAGE AND INSTALLATION

When a unit is hoisted with slings for haulage, take into consideration the offset of its gravity

CAUTION
center position.
If not properly balanced, the unit can be thrown off-balance and fall.
1) Delivery
●
Deliver the unit as close as possible to the installation site before removing it from the packaging.
●
When some compelling reason necessitates the unpacking of the unit before it is carried in, use
nylon slings or protective wood pieces so as not to damage the unit by ropes lifting it.
● Do not run the unit with removed panels or protections
● Be sure to fix up the service panels.
● Do not perform any repairs or modifications by yourself. Consult the dealer if the unit requires repair.
CAUTION
● Do not use the base flame for outdoor unit which is corroded or damaged due to long periods of operation.
● Do not install the unit in the locations listed below
● Do not install the outdoor unit in the locations listed below.
● Do not use the unit for special purposes such as storing foods, cooling precision instruments and preservation of animals, plants or art.
● Do not touch any buttons with wet hands
● Do not touch any refrigerant pipes with your hands when the system is in operation.
● Do not clean up the unit with water
● Do not operate the outdoor unit with any article placed on it.
● Do not step onto the outdoor unit.
(Take particular care in carrying in or moving the unit, and always perform such an operation with two or more persons.)
Pad
2) Portage
●
The right hand side of the unit as viewed from the front (diffuser side) is heavier. A person
carrying the right hand side must take heed of this fact. A person carrying the left hand side
must hold with his right hand the handle provided on the front panel of the unit and with his left
Wooden pallet hand the corner column section.
personal injury.
Touching rotating equipments, hot surfaces or high voltage parts can cause personal injury due to entrapment, burn or electric
shocks.
Incorrect fixing can cause electric shocks or fire due to intrusion of dust or water.
If you repair or modify the unit, it can cause water leaks, electric shocks or fire.
Using an old and damage base flame can cause the unit falling down and cause personal injury.
・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.
・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
It can cause the damage of the items.
It can cause electric shocks
During operation the refrigerant pipes become extremely hot or extremely cold depending the operating condition, and it can cause burn injury or frost injury.
It can cause electric shocks
You may incur property damage or personal injure from a fall of the article.
You may incur injury from a drop or fall.
Dedicated R410A 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
g ）
Vacuum pump adapter
h） Gas leak detector
Heavy
100V
140V
One-way pipe length between the first
branching point from to the second
Triple
branching point
Twin
One-way pipe length after the first
Triple
branching point
One-way pipe length after the
first branching point and second Triple
branching point
Twin
One-way pipe length difference
from the first branching point to
Triple
the indoor unit
One-way pipe length difference
from the second branching point
Triple
to the indoor unit
When
Elevation difference between
indoor and outdoor units
When
Elevation difference between indoor units
●
The use r
CAUTION
utilized, d
●
With the
to the abo
Note (1) Install the
Keep the
2) Determination of p
●
Determine refrigerant pipe size
Outdoor unit conn
Refrigerant piping (Ma
Indoor u
In the case of a single type
Capacity
Branchin
Refriger
In the case of a twin type
Indoor u
Capacity
Branchin
Refriger
In the case of a triple type A
Indoor u
Capacity
Branchin
Refriger
Refriger
Branchin
In the case of a triple type B
Refriger
Indoor u
Capacity
●
CAUTION When the
diameter
If a φ6.35
the rated
● A riser pip
A branchi
●
For the de
About brazing
Brazing must be perfor
Without nitrogen gas, a lar
created, causing a critical
3) Refrigerant pipe w
● Select refrigerant pipes of the
specified for each pipe size.
●
This unit uses R410A. Always
or larger pipes, because O-type