Elektronika SCM60ZD-S Manual page 51

B. When embedded into ceiling
1. Determine the positions of hanging bolts (530 x 530).
The pitch center of a hanging bolt must accord with the center of the unit.
2. Use four hanging bolts, each fastened in such a manner that it can withstand pull force of 50kgf.
3. Fix the unit as per A-e ~ g previous page.
Notes • When a hanging bolt exceeds 1.3 m in length, use an M10 bolt and give it reinforcements such as braces.
5) Drainage
¡
Glue the drain hose supplied as an accessory and a VP-25 joint before lifting
the unit.
¡
The drain hose is to provide a buffer to absorb a slight dislocation of the unit or
the drain piping during installation work. If it is subject to abuse such as being
bent or pulled deliberately, it may break, which will result in a water leak.
¡
Care must be taken so as not to allow an adhesive to run into the drain hose.
When it is hardened, it can cause a breakage of a flexible part, if the flexible
part receives stress.
¡
Use VP-25 general-purpose hard PVC pipes for drain piping.
¡
Insert the drain hose supplied as an accessory (soft PVC end) to the stepped
part of the unit's drain socket and then fasten it with the clamp also supplied as
an accessory.
<Adhesive must not be used>
¡
Glue a VP-25 joint (to be procured locally) to join it with the drain hose (hard
PVC end) and then glue a VP-25 (to be procured locally) to the joint.
¡
Give the drain piping a descending grade (1/50 - 1/100) and never create a
bump to go over or a trap.
¡
In connecting drain pipes, care must be taken so as not to apply force to the
unit side piping and fix the pipe at a point as close to the unit as possible.
¡
Do not create an air vent under any circumstances.
¡
When drain piping is implemented for more than one unit, provide a collecting
main about 100 mm below the units' drain outlets from which it collects drain.
Use a VP-30 or larger pipe for a collecting main.
¡
Do not fail to provide heat insulation at the following two points because they
can cause dew condensation and a resultant water leak.
• Drain socket
After a drain test is completed, apply a pipe cover (small: accessory) onto the
drain socket, cover the pipe cover (small), the clamp and part of the drain
hose with a pipe cover (large: accessory) and wrap it with a tape completely
without leaving any gaps.
(Cut pipe covers into appropriate shapes)
• Hard PVC pipes laid indoor
¡
Since a drain pipe outlet can be raised up to 60 cm from the ceiling, use elbows,
etc. to install drain pipes, if there are obstacles preventing normal drain pipe
arrangement. When the drain pipe is raised at a point far from a unit, it can
cause an overflow due to a back flow of drain upon stoppage, so arrange pip-
ing to keep the dimensions specified in the illustration shown on the right.
¡
Install the drain pipe outlet where no odor is likely to be generated.
¡
Do not lead the drain pipe into a ditch where the generation of harmful gas
such as sulfuric gas or flammable gas is expected. A failure to observe this
instruction may cause such harmful or flammable gas to flow into the room.
Pipe cover (large)
(For insulation) Joint for VP-25
(Accessory)
(not included)
Main
frame
Drain hose
(accessory)
Adhesion
Clamp (accessory)
Drain socket
Pipe cover (For insulation)
No adhesive allowed
(not included)
Pipe cover (small)
(For insulation) (Accessory)
Drain hose
Drain socket Stepped part
1.5m ~ 2m
bearer
Insulation material
Descending slope
greater than 1/100
No bump
Air vent
No trap
Not touching the water
Trapped air will generate noises.
295 ~ 325mm Less than 100mm
Drain hose
Joint for VP-25
(not included)
VP-25
(not included)
51