Mitsubishi Electric FDC100VNA, Technical Manual

Page: 66 / 210

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'11 • PAC-T-160
1.
HAULAGE AND INST
ALLA
TION
(T
ake particular care in carr
ying in or moving the unit,
and al
ways perform such an opera
tion with two or more persons.)
Notabilia as a unit designed for R410A
●
Do not use an
y refrigerant other than R410A.
R410A will rise to pressure about 1.6 times higher than tha
t of a conventional re
frigerant.
A c
ylinder containing R410A has a pink indica
tion mark on the top.
●
A unit designed for R410A has adopted a different size indoor unit opera
tion 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 ha
ve also
been altered to raise strength a
gainst pressure.
Accordingly
, you are
required to arrange dedica
ted R410A tools listed in the table on the right before installing or ser
vicing this unit.
●
Do not use a charge c
ylinder
.
The use of a charge c
ylinder will cause the refrigerant composition to change,
which results in
performance degrada
tion.
●
In charging refrigerant,
al
ways take it out from a c
ylinder in the liquid phase.
●
All indoor units must be models designed exc
lusively for R410A.
Check connectable indoor unit models in a ca
talog,
etc.
(A wro
ng indoor unit,
if connected into the system,
will impair proper system
opera
tion)
C
AUTION
When a unit is hoisted with slings for haula
ge,
take into considera
tion the offset of its gra
vity
center position.
If not properly balanced,
the unit can be thro
wn off-balance and fall.
a
)
b
)
c
)
d
)
e
)
f
)
g
)
h
)
Gauge manifold Charge hose Electronic scale for refrigerant charging Torque wrench Flare tool Protrusion control copper pipe gauge V
acuum pump ada
pter
Gas leak detector
Dedica
ted R410A tools
1) Deliver
y
●
Deliver the unit as c
lose as possible to the installa
tion site before removing it from the packa
ging.
●
When some compelling reason necessita
tes the unpacking of the unit before it is carried in,
use
n
ylon slings or protective wood pieces so as not to dama
ge the unit by ropes lifting it.
2) P
ortage
●
The right hand side of the unit as viewed from the front (diffuser side) is hea
vier
.
A person
carr
ying the right hand side must take heed of this fact.
A person carr
ying the left hand
side must hold with his right hand the handle provided on the front panel of the unit and with his left hand the corner column section.
Hea
vy
P
ad
W
ooden pallet
●
Carr
y out the electrical work for ground lead with care
Do not connect the ground lead to the gas line,
wa
ter line,
lightning conductor or telephone line's ground lead.
Incorrect grou
nding 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 exp
losion 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 isola
tor should be locked in accordanced with EN60204-1
．
●
Take care when carr
ying the unit by hand.
If the unit weights more than 20kg,
it must be carried by two or more persons.
Do not carr
y by the plastic stra
ps,
al
ways use t
he carr
y handle when carr
ying the
unit by hand.
Use gloves to minimize the risk of cuts by the aluminum fins.
●
Dispose of an
y packing materials correctly
.
An
y remaining packing ma
terials can cause personal injur
y as it contains nails and wood.
And to a
void danger of suffoca
tion,
be
sure to keep the plastic
wra
pper a
way from children and to dispose after tear it up.
●
P
ay attention not to damage the drain pan by weld spatter when welding work is done near the indoor unit.
If weld spa
tter entered into the indoor unit during welding work,
it can cause pin-hole in drain pan and result in wa
ter leaka
ge.
To
prevent such dama
ge,
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 insula
tion can cause condensa
tion,
which can lead to moisture dama
ge on the ceiling,
floor
, furniture and an
y 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 leaka
ge in the small room,
lack of oxygen can occur
, which can cause serious accidents.
●
P
erform installation work properly according to this installation manual.
Improper installa
tion can cause abnormal vibra
tions or increased noise genera
tion.
●
Earth leakage breaker must be installed If the earth leaka
ge breaker is not installed,
it can cause fire or electric shocks.
●
Do not use an
y 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 accumula
te 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 hea
t exchanger
, breaka
ge 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 injur
y due to falling from the installa
tion place..
●
When the outdoor unit is installed on a roof or a high place,
pro
vide permanent ladders and handrails along the access route an
d fences and handrails around the outdoor unit.
If safety facilities are not provided,
it can cause personal injur
y due to falling from the installa
tion place.
●
Do not install nor use the system c
lose to the equipment that generates electromagnetic fields or high frequenc
y harmonics
Equipment such as inverters,
standby genera
tors,
medical high frequenc
y equipments and telecommunica
tion equipments can affect
the system,
and cause
malfunctions and breakdo
wns.
The system can also affect medical equipment and telecommunica
tion equipment,
and obstruct its fun
ction 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 dama
ge or fire.
Instruct the user to keep the surroundings c
lea
n.
●
Do not use the base fl
ame for outdoor unit which is corroded or damaged due to long periods of operation.
Using an old and dama
ge base flame can cause the unit falling do
wn and cause personal injur
y.
●
Do not install the unit in the locations listed below ࡮
Loca
tions where carbon fiber
, metal po
wder or an
y po
wder is floa
ting.
࡮
Loca
tions where an
y substances tha
t can affect the unit such as sulphide gas,
chloride gas,
acid and alkaline can occur
.
࡮
Vehic
les and ships
࡮
Loca
tions where cosmetic or special sprays are often used.
࡮
Loca
tions with direct exposure of oil mist and steam such as kitchen and machine plant.
࡮
Loca
tions where an
y machines which genera
te high frequenc
y harmonics are used.
࡮
Loca
tions with salty a
tmospheres such as coastlines
࡮
Loca
tions with hea
vy sno
w (If installed,
be sure to provide base flame and sno
w hood mentioned in the manual)
࡮
Loca
tions where the unit is exposed to chimney smoke
࡮
Loca
tions a
t high altitude (more than 1000m high)
࡮
Loca
tions with ammonic a
tmospheres
࡮
Loca
tions where hea
t radia
tion from other hea
t source can affect the unit
࡮
Loca
tions without good air circula
tion.
࡮
Loca
tions with an
y obstac
les which can prevent inlet and outlet air of the unit
࡮
Loca
tions where short circuit of air can occur (in case of multiple units installa
tion)
࡮
Loca
tions where strong air blo
ws a
gainst the air outlet of outdoor unit
It can cause remarkable decrease in performance,
corrosion and dama
ge of components,
malfunction and fire.
●
Do not install the outdoor unit in the locations listed below
.
࡮
Loca
tions where discharged hot air or opera
ting sound of the outdoor unit can bother neighborhood.
࡮
Loca
tions where outlet air of the outdoor unit blo
ws directly to an animal or plants.
The outlet air can affect adversely to th
e plant etc.
࡮
Loca
tions where vibra
tion can be amplified and transmitted due to insufficient strength of structure.
࡮
Loca
tions where vibra
tion and opera
tion sound genera
ted by the outdoor unit can affect seriously
. (on the wall or a
t the place
near bed room)
࡮
Loca
tions where an equipment affected by high harmonics is placed.
(TV set or radio receiver is placed within 5m)
࡮
Loca
tions where draina
ge cannot run off safely
.
It can affect surrounding environment and cause a c
laim
●
Do not use the unit for special purposes such as storing foods,
cooling precision instruments and preser
vation of animals,
plan
ts or art.
It can cause the dama
ge of the items.
●
Do not touch an
y buttons with wet hands
It can cause electric shocks
●
Do not touch an
y refrigerant pipes with your hands when the system is in operation.
During opera
tion the refrigerant pipes become extremely hot or extremely cold depending the opera
ting condition,
and it can cau
se burn injur
y or frost injur
y.
●
Do not c
lean up the unit with water
It can cause electric shocks
●
Do not operate the outdoor unit with an
y artic
le placed on it.
You may incur property dama
ge or personal injure from a fall of the artic
le.
●
Do not step onto the outdoor unit. You may incur injur
y from a drop or fall.
C
AUTION