Mitsubishi Heavy Industries FDT200VSAWPVH Service Manual page 147

○This model is middle static ducted type air-conditioning unit. Therefore, do not use this model for direct
blow type air-conditioning unit.
①Before installation
●Install correctly according to the installation manual.
●Confirm the following points:
○Unit type/Power source specification
Accessory item
For hanging
FDU FDU-F
Flat washer (M10) Hose clamp Soket Pipe cover (big)
8 2 1 1
For drain pipe
For unit For drain soket For heat insulation
hanging mounting mounting of drain socket
②Selection of installation location for the indoor unit
① Select the suitable areas to install the unit under approval of the user.
・Areas where the indoor unit can deliver hot and cold wind sufficiently. Suggest to the user to use
a circulator if the ceiling height is over 3m to avoid warm air being accumulated on the ceiling.
・Areas where there is enough space to install and service.
・Areas where it can be drained properly. Areas where drain pipe descending slope can be
taken.
・Areas where there is no obstruction of airflow on both air return grille and air supply port.
・Areas where fire alarm will not be accidentally activated by the air-conditioner.
・Areas where the supply air does not short-circuit.
・Areas where it is not influenced by draft air.
・Areas not exposed to direct sunlight.
・Areas where dew point is lower than around 28°C and relative humidity is lower than 80%.
This indoor unit is tested under the condition of JIS (Japan Industrial Standard) high humidity
condition and confirmed there is no problem. However, there is some risk of condensation
drop if the air-conditioner is operated under the severer condition than mentioned above.
If there is a possibility to use it under such a condition, attach additional insulation of 10 to
20mm thick for entire surface of indoor unit, refrigeration pipe and drain pipe.
・Areas where TV and radio stays away more than 1m. (It could cause jamming and noise.)
・Areas where any items which will be damaged by getting wet are not placed such as food,
table wares, server, or medical equipment under the unit.
・Areas where there is no influence by the heat which cookware generates.
・Areas where not exposed to oil mist, powder and/or steam directly such as above fryer.
・Areas where lighting device such as fluorescent light or incandescent light doesn't affect
the operation.
(A beam from lighting device sometimes affects the infrared receiver for the wireless remote
control and the air-conditioner might not work properly.)
② Check if the place where the air-conditioner is installed can hold the weight of the unit. If it is
not able to hold, reinforce the structure with boards and beams strong enough to hold it. If the
strength is not enough, it could cause injury due to unit falling.
Space for installation and service
●Make installation altitude over 2.5m.
(Indoor Unit)
Select either of two cases to keep space for installation and services.
(Case 1) From side of unit
Inspection
hole
(450x450)
Note (a)
100-200
Notes (a) There must not be obstacle to draw out fan motor. (
(b) Install refrigerant pipe, drain pipe, and wiring so as not to cross
(Case 2) From bottom of unit
Inspection
hole
B
(Size of inspection hole)
○Pipes/Wires/Small parts ○Accessory items
For drain pipe
FDUA
Pipe cover (small) Drain hose Hose clamp
1 1 1
For heat insulation
For drain pipe For drain hose Accessory parts are stored
of drain socket connecting mounting inside this suction side.
UNIT: mm
Note (b)
Slab
Ceiling
480
marked area)
marked area.
UNIT: mm
UNIT: mm
Single type 200, 250, 280
Multi type 224, 280
FDU-F 1800, 2400
A 1900
B 880
③Cautions for the handling and installation place of outdoor air processing unit
1 This unit monitors the outdoor air temperature at the position of sensor A in the figure, and controls the start and
stop with the thermostat based on the value of sensor A and the setting temperature by the remote control.
Outdoor air
Outdoor air blind
Remote control's setting temperature indicates the outdoor air temperature that controls the start and stop of operation
by the thermostat.
When the thermostat is turned off, the operation is changed to the fan mode so that the outdoor air is blown out
directly into the room. For example if the remote control is set to 22°C in cooling operation, and if the outdoor air
temperature is 22°C or lower at that time, the unit will go into fan operation.
2 When there is a difference between the air-conditioning temperature in the room during cooling operation and the tempera-
ture of air blown out from the outdoor air processing unit, dewing water may drip from the unit. To prevent the dewing, provide
a sufficient heat insulation means at the air blow outlet.
3 Since the air blow outlet on the outdoor air processing unit may blow out the outdoor air directly, orient the outlet in such a
way that it will not blow air directly to persons in the room.
4 Since the unit controls the thermostat start and stop by monitoring the outdoor air temperature, it is prohibited to monitor the room
temperature by means of the room temperature monitoring by changing the thermostat setting at the remote control side and the
optional remote thermistor. Otherwise, dewing water may drip from the unit at lower outdoor air temperatures during cooling operation.
5 Install the remote control of the outdoor air processing unit at a place closer to the administrator to avoid the end user from
using the remote control.
When handing over the unit to the end user, make sure to explain sufficiently about the foregoing cautions, the
installation place of the remote control for the outdoor air processing unit and the position of air blow outlet.
④Preparation before installation
●If suspension bolt becomes longer, do reinforcement of earthquake resistant.
○For grid ceiling
When the suspension bolt length is over 500mm, or the gap between the ceiling and roof is
over 700mm, apply earthquake resistant brace to the bolt.
○In case the unit is hanged directly from the slab and is installed on the ceiling plane which
has enough strength.
When suspension bolt length is over 1000mm, apply the earthquake resistant brace to the bolt.
●Prepare four (4) sets of suspension bolt, nut and spring washer (M10) on site.
Suspension Bolt Location
A
UNIT: mm
Single type 200, 250, 280
Multi type 224, 280
FDU-F 1800, 2400
A 1634
B 831
Pipe locations UNIT: mm
146
- -
'21 • PAC-SM-383
Unit body
Duct Duct
Air filter
SensorA
Suspension
Return duct
bolt (M10)
○ Adhere to the
measurements given
Unit
Drain pipe below for the length of
※Only FDUA
the suspension bolts.
Air supply duct
Liquid pipe
Gas pipe
Drain pipe
※Only FDUA
Drain pipe (Natural)
759
579
486
539