257
FDTN-H
C
F
G
E
A B
D
161
99
141
215
26
336
295
264
304
300
570
359
(1) Selection of installation location
(a) Select location where the space above ceiling is larger than those mentioned
below and perfect draining can be assured.
(b) Places where perfect drainage can be prepared and sufficient drainage gradient
is available.
(c) Places free from air distrubances to the air inlet and outlet of the indoor unit.
(d) laces with the environmental dew-point temperature is lower than 28
°
C and
the relative humidity is less than 80%.(When installing at a place under a high
humidity environment, pay sufficient attention to prevention of dewing such
as thermally insulating the unit properly.)
(e) Do not place where the unit is exposed to oil splashes or steam (e.g. kitchens
and machine plants). (Installation and use at such places will causes the per-
formance drop, corrosion in the heat exchanger and damage in molded syn-
thetic resin parts.)
(f) Do not place where corrosive gas (such as sulfurous acid gas) or inflammable
gas (thinner, gasoline, etc.) is generated or remains. Installation and use at
such places will cause corrosion in the heat exchanger and damage in molded
synthetic resin parts.
(g) Do not place adjacent to equipment generating electromagnetic waves or high-frequency waves such as in hospitals,
Generated noise may cause malfunctioning of the controller.
(2) Preparation for installation
(a) Ceiling hole size and Position of suspension bolts.
1)
The pattern sheet may shrink or expand as humidity changes, so check the actual size before use.
2)
The size of ceiling opening can be adjusted within the range shown below. Bring the unit body to the ceiling opening
right in the center so as not to be set aside and so that space between a ceiling opening end and the outside of the unit
body becomes equal to that on the opposite side.
3)
The size of the pattern sheet equals to the maximum size of the square ceiling opening.
(b) Location of Pipes
For the location of pipe, see the exterior dimension.
6.5.1
Installation of indoor unit
¡
Installation space
(mm)
1,000 and over
1,000 and over
Obstacle
A Gas refrigerant piping
B Liquid refrigerant piping
C Drain piping connecting hole
D Power intake hole
E Hang bolt
F Outside air intake hole
G Supply air branch duct connecting hole
Model
a
b
258, 308
210
260
408, 508
270
320
Unit: mm
Drain hose
(accessory)
Attach on site.
45 and over
Hanger
Ceiling opening dimension: 860 to 890 square
Hang bolt pitch: 780
Hang bolt pitch: 675
FDT(N) 258~508
FDT(N) 208
Drain hose
(accessory)
Attach on site.
Hanger
Ceiling opening dimension: 740 square
Hang bolt pitch: 430
Hang bolt pitch: 680
Control box
□
700
49 and over
Control box
Type
Space above ceiling
FDT(N) 208
Over 225 mm
FDT(N) 258, 308
Over 270 mm
FDT(N) 408, 508
Over 330 mm
NOTICE
All Wiring of this installation must comply with NATIONAL, STATE AND LOCAL REGULATIONS. These instructions
do not cover all variations for every kind of installation circumstance. Should further information be desired or should
particular problems occur, the matter should be referred to Mitsubishi Heavy Industries, Ltd. through your local distributor.
WARNING
BE SURE TO READ THESE INSTRUCTIONS CAREFULLY BEFORE BEGINNING INSTALLATION. FAILURE TO
FOLLOW THESE INSTRUCTIONS COULD CAUSE SERIOUS INJURY OR DEATH, EQUIPMENT MALFUNCTION
AND/OR PROPERTY DAMAGE.
Содержание FDT208HEN-S
Страница 74: ...MEMO...
