Mitsubishi Heavy Industries FDTC40ZHXV Technical Manual page 209

Suspension bolt
M10 nuts
M10 Washer
Indoor unit
M10 Spring washer
a) Adjust the out-levelness using a level vial or by the following method.
• Make adjustment so that the relation between the lower surface of the indoor unit proper and water level in the hose
becomes given below.
b) Unless the levelness is adjusted properly, the malfunction of the float switch will occur.
The following two methods are available in switching the blower fan
tap. Switch to the high-speed tap with one of these methods.
1 Set SW9-4 provided on the indoor unit PCB to ON.
2 By means of function setting from the remote con-
trol unit, set the setting
(indoor unit function) to "Hi CEILING 1 " (high-speed
tap) as shown right.
For the details of operating procedures, please refer to the installation manual of your remote control unit.
1
• 2-spot, 3-spot and 4-spot with ø200 type duct are the standard specifications. Determine the number of spots based on
following table.
Notes (1) Shield the central supply air port for 2-spot.
Notes (2) Shield the supply air port around the center for 3-spot.
• Limit the difference in length between spots at less than 2:1.
• Reduce the length of duct as much as possible.
• Reduce the number of bends as much as possible. (Corner R should be as larger as possible.)
Access door must be provided without fail.
•
(See exterior dimensions in page 93 to 95.)
Indoor unit
Piping side
Supply water
0 ~ 5 mm
Bring the piping side slightly lower
of "I/U FUNCTION "
2-spot
Bad example
202
- -
Suspension bolt M10
PVC hose
Fan control,high speed (High ceiling)
ON
SW9-4
Fan control,standard
OFF
Function number Function description
Hi CEILING SET
01
2 ~ 3-spot
(1)
Bad example Good example
Setting
Hi CEILING 1
3 ~ 4-spot
(2)