Mitsubishi Heavy Industries FDCW100VNX-A, Technical Manual

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Installation
‘19 • HM-T-340
2. REFRIGERANT PIPING WORK
1. HAULAGE AND INSTALLATION
(Take particular care in carrying in or moving the unit, and always perform such an operation with two or more persons.)
② Notabilia for installation
Fasten with bolts
(M10-12)
Use a thicker block to anchor deeper.
Use a long block to extend the width.
CAUTION
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.
3) Refrigerant pipe wall thickness and material
● Select refrigerant pipes of the table shown on the right wall thickness and material as
specified for each pipe size.
Pipe diameter [mm]
Minimum pipe wall thickness [mm]
Pipe material*
9.52
0.8
O-type pipe
15.88
1.0
O-type pipe
NOTE
*Phosphorus deoxidized seamless copper pipe C1220T, JIS Ｈ 3300
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.
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 hand the corner column section.
5) Installation space
● Walls surrounding the unit in the four sides are not acceptable.
● There must be a 1-meter or larger space in the above.
● Where a danger of short-circuiting exists, install guide louvers.
● When more than one unit are installed, provide sufficient intake space consciously so that short-circuiting may
not occur.
● Where piling snow can bury the outdoor unit, provide proper snow guards.
● A barrier wall placed in front of the exhaust diffuser must not be higher than the unit.
● Advisable to keep the right side service space (L4) more than 300 mm for easy maintenance.
Intake
(
service
space
)
Intake
Outlet
L
3
L
2
L
4
L
1
71VNX
71VNX
Example installation
Size
L1
L2
L3
L4
Ⅰ
Open
300
100
250
Ⅱ
Open
250
150
250
Ⅲ
500
Open
100
250
（mm）
100VNX
,
140VNX
100VNX , 140VNX
Ⅰ
Open
300
150
5
Ⅱ
Open
5
300
5
Ⅲ
500
Open
150
5
Intake
Outlet
190 200 580
20
410
20
① Anchor bolt fixed position
● In installing the unit, fix the unit’s legs with bolts specified on the left.
● The protrusion of an anchor bolt on the front side must be kept within 15 mm.
●
Securely install the unit so that it does not fall over during earthquakes or strong winds, etc.
● Refer to the left illustrations for information regarding concrete foundations.
● Install the unit in a level area. (With a gradient of 5 mm or less.)
Improper installation can result in a compressor failure, broken piping within the unit and
abnormal noise generation.
< Single type >
L
H
Outdoor unit
Indoor unit
1) Restrictions on unit installation and use
● Check the following points in light of the indoor unit specifications and the installation site.
● Observe the following restrictions on unit installation and use. Improper installation can result in a compressor failure or performance degradation.
2) Determination of pipe size
● Determine refrigerant pipe size pursuant to the following guidelines based on the indoor unit specifications.
One-way pipe length of refrigerant piping
Restrictions
Dimensional restrictions Marks appearing in the drawing on the right
L
H
H
Outdoor unit connected
Indoor unit connected
Connected indoor unit model
Refrigerant piping φ 15.88
φ 15.88
φ 15.88
Flare
Elevation difference between
indoor and outdoor units
71VNX, 100VNX, 140VNX
HSB100, HMK100 (71VNX, 100VNX), HSB140 (140VNX)
Gas pipe Liquid pipe
When the outdoor unit is positioned higher,
When the outdoor unit is positioned lower,
Single type
Over 500 mm
2.Install the outlet air blow side
of the unit in a position
perpendicular to the direction
of wind.
6) Installation
● Select pipes having a wall thickness larger
than the specified minimum pipe thickness.
3.The unit should be installed on
the stable and level foundation.
If the foundation is not level,
tie down the unit with wires.
1.Install the outlet air blow side
of the unit to face a wall of
building, or provide a fence or
a windbreak screen.
4.Use wind guard in case outdoor unit is installed where ambient temperature drops below -10˚C and
natural wind blows into outdoor unit directly.
For details, refer to technical manual.
30m or less 30m or less 30m or less
71VNX 100VNX 140VNX
7m or less
7m or less
φ
9.52
Flare
φ 9.52
φ 9.52
3) Selection of installation location for the outdoor unit
Be sure to select a suitable installation place in consideration of following conditions.
〇 A place where it is horizontal, stable and can endure the unit weight and will not allow vibration transmittance of the unit.
〇 A place where it can be free from possibility of bothering neighbors due to noise or exhaust air from the unit
〇 A place where the unit is not exposed to oil splashes.
〇 A place where it can be free from danger of flammable gas leakage.
〇 A place where drain water can be disposed without any trouble.
〇 A place where the unit will not be affected by heat radiation from other heat source.
〇 A place where snow will not accumulate.
〇 A place where the unit can be kept away 5m or more from TV set and/or radio receiver in order to avoid any radio or TV interference.
〇 A place where good air circulation can be secured, and enough service space can be secured for maintenance and service of the unit safely.
〇
A place where the unit will not be affected by electromagnetic waves and/or high-harmonic waves generated by other equipment.
〇 A place where chemical substances like sulfuric gas, chloric gas, acid and alkali (including ammonia), which can harm the unit, will not be generated and not remain.
〇 A place where strong wind will not blow against the outlet air blow of the unit.
Do not install the unit in places which exposed to sea breeze (e.g. coastal area) or calcium chloride (e.g. snow melting agent), exposed to ammonia substance (e.g. organic fertilizer).
Heavy
Pad
Wooden pallet
Wind direction
Wind direction
(2) If the unit can be affected by strong wind, following measures are required.
Strong wind can cause damage of fan (fan motor), or can cause performance degradation, or
can trigger anomalous stop of the unit due to rising of high pressure or dropping of low pressure.
1.Install the unit on the base so that
the bottom is higher than snow cover
surface.
3.Install the unit under eaves or
provide the roof on site.
2.Provide a snow hood to the outdoor
unit on site.
Regarding outline of a snow hood, refer to
our technical manual.
4) Caution about selection of installation location
(1) If the unit is installed in the area where the snow will accumulate, following measures are required.
The bottom plate of unit and intake, outlet may be blocked by snow.
Since drain water generated by defrost control may freeze, following measures are required.
● Don't execute drain piping work. by using a drain elbow and drain grommets (optional parts). [Refer to Drain piping work.]
● Recommend setting Defrost Control (SW3-1) and Snow Guard Fan Control (SW3-2). [Refer to Setting SW3-1, SW3-2.]
Anchor bolt position
60
150 150 580
87.9 880
15
19
380 340 418
19
Intake
Outlet
Outdoor unit installation
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