Selecting Installation Site; Preparations Before Installation - Daikin FDYB-KA Series Engineering Data

Installation

15.1.2 Selecting Installation Site

〈〈
Please attach additional thermal insulation material to the unit body when it is
believed that the relative humidity in the ceiling exceeds 80%. Use glass wool,
polyethylene foam, or similar with a thickness of 10 mm or more as thermal insulation
〉〉
material.
(1) Select an installation site where the following conditions are fulfilled and
that meets your customer's approval.
• Where optimum air distribution can be ensured.
• Where nothing blocks air passage.
• Where condensate can be properly drained.
• Where the ceiling is strong enough to bear the indoor unit weight.
• Where the false ceiling is not noticeably on an incline.
• Where sufficient clearance for maintenance and service can be ensured.
• Where there is no risk of flammable gas leakage.
• Where piping between indoor and outdoor units is possible within the allowable
limit.
(Refer to the installation manual for the outdoor unit.)
• Keep indoor unit, outdoor unit, power supply wiring and transmission wiring at least
1 meter away from televisions and radios. This is to prevent image interference and
noise in those electrical appliances.
(Noise may be generated depending on the conditions under which the electric
wave is generated, even if 1 meter is kept.)
• Ambient air of the indoor unit is not so dusty. Drain piping may be clogged with
dust and may result in water leakage and property damage.
(When obliged to install the indoor unit in a dusty place, install the optional Dust
Cover which prevent dust from falling into drainpan.).
(2) Use suspension bolts for installation. Check whether the ceiling is strong enough to
support the weight of the unit or not. If there is a risk, reinforce the ceiling before
installing the unit.
(3) When exposing the body of this unit, install the unit where the bottom is move than
2.5 m high so that the user can not touch.
(4) Fiter (commercially available) must be installed. Do not operate without a return air
filter.

15.1.3 Preparations Before Installation

Relation of ceiling opening to unit and suspension bolt position (Fig. 3)
1
Model
FDYB35 · 50
FDYB60 · 71
For standard installation (air inlet on the both side), choose one of the below two means of
installation.
NOTE: For other than standard installation, contact your Daikin dealer for details.
The fan speed for this indoor unit is preset to provide standard external static pressure.
2
When not using the unit at standard static pressure, switch the static pressure value to
high static pressure by changing the field setting from the remote control.
Refer to the section entitled FIELD SETTING.
Install the suspension bolts. (Fig. 4)
3
(Use M10 size bolt for the suspension bolt)
Use anchors for existing ceilings, and a sunken insert, sunken anchor or other field
supplied parts for new ceilings to reinforce the ceiling to bear the weight of the unit.
56
(mm)
A B
755 900
1155 1300
Ceiling
Notes : • Above H* is the minimum size of the indoor unit.
• Extra 20–30 mm is necessary to connect gas pipes.
Determine size H* based on 1/100 of the required
downward inclination indicated in "DRAIN PIPING WORK".
Fig. 1
Gas pipe
Liquid pipe
Fig. 2
126
Suspension bolt (M10x4)
<Installation example>
NOTE) All the above parts and field supplied.
ED41-016B
Units: mm
300 or more
(Service space)
Wiring port
Drain pipe
C : 3PN00281-18T-2
Units: mm
(Suspension bolt pitch)
A
B
Fig. 3
Ceiling slap
Anchor
Long nut or turn-buckle
Suspension bolt
Indoor unit
Fig. 4
C : 3PN00281-18T-3
FDYB-KA Series