Mitsubishi Heavy Industries FDTC40ZIXVD Data Book page 208

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 processing, splice the power cord, or share a socket
with other power plugs.
This may cause fire or electric shock due to defecting contact,
defecting insulation and over-current etc.
• 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.
• Use the circuit breaker with sufficient breaking capacity.
If the breaker does not have sufficient breaking capacity, it can cause
the unit malfunction and fire.
• Earth leakage breaker must be installed.
If the earth leakage breaker is not installed, it can cause electric
shocks.
• Install isolator or disconnect switch on the power supply wiring
in accordance with the local codes and regulations.
• After maintenance, all wiring, wiring ties and the like, should be
returned to their original state and wiring route, and the
necessary clearance from all metal parts should be secured.
• 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 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.
• 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.
Check before installation work
• Model name and power source
a Sealing plate
• Refrigerant piping length
b Sleeve
• Piping, wiring and miscellaneous small parts
c Inclination plate
• Indoor unit installation manual
d Putty
e Drain hose (extension hose)
Accessories for outdoor unit Q'ty
Piping cover
f
1 Grommet (Heat pump type only) 4 (for insulation of connection piping)
2 Drain elbow (Heat pump type only) 1
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 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 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.
do not deforming the power plug due to tread it.
This may cause fire or heating.
• 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.
CAUTION
• 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.
• 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.
• 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
plants.
• 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 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.
• 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
Q'ty
Option parts Necessary tools for the installation work
1 1 Plus headed driver
1 2 Knife
1 3 Saw
1 4 Tape measure
1 5 Hammer
6 Spanner wrench
1
7 Torque wrench [14.0
8 Hole core drill (65mm in diameter)
(Take particular care in carrying in or moving the unit, and always perform such an operation with two or more persons.)
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.
• When perform the air conditioner operation (cooling or drying
operation) in which ventilator is installed in the room. In this
case, using the air conditioner in parallel with the ventilator,
there is the possibility that drain water may backflow in
accordance with the room lapse into the negative pressure
status. Therefore, set up the opening port such as incorporate
the air into the room that may appropriate to ventilation (For
example; Open the door a little). In addition, just as above, so
set up the opening port if the room lapse into negative
pressure status due to register of the wind for the high rise
apartment etc.
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.
• 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 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 touch the suction or aluminum fin on the outdoor unit.
This may cause injury.
• Do not put anything on the outdoor unit and operating unit.
This may cause damage the objects or injury due to falling to the
object.
9 Wrench key (Hexagon) [4m/m]
10 Vacuum pump
Vacuum pump adapter (Anti-reverse flow type)
11
(Designed specifically for R410A)
12 Gauge manifold (Designed specifically for R410A)
13 Charge hose (Designed specifically for R410A)
14 Flaring tool set (Designed specifically for R410A)
15 Gas leak detector (Designed specifically for R410A)
~ ~
62.0N·m (1.4 6.2kgf·m)] Gauge for projection adjustment
16
(Used when flare is made by using conventional flare tool)
at a place where it is not influ
A place where strong wind wi
4) Caution about select
(1) If the unit is installed in the a
The bottom plate of unit and i
1 Install the unit on the base
that the bottom is higher t
snow cover surface.
Since drain water generated b
Don't execute drain piping w
piping work.]
Recommend setting Defrost
SW3-2.]
2. REFRIGERANT
1) Restrictions on unit
Check the following points in l
Observe the following restriction
Re
Main
Elevation difference between
indoor and outdoor units
The use res
CAUTION
Where an e
For more in
2) Determination of pi
Determine refrigerant pipe size
indoor unit specifications.
Outdoor unit connect
Refrigerant piping (branch
Indoor unit connecte