Indoor Unit Drain Piping - Friedrich DUCTLESS Manual De Instalación

12
CAUTION
!
• Drain line must be angled down to en-
sure gravity drainage.
• Minimum thickness of the insulation for
the connecting pipe shall be 19mm(3/4
inch).
Front of view
The unit must be horizontal or declined to
the drain hose connected when finished
installation.
Drain Pump use

Indoor Unit Drain Piping

- Drain piping must have down-slope (1/50 to
1/100): be sure not to provide up-and-down
slope to prevent reversal flow.
- During drain piping connection, be careful
not to exert extra force on the drain port on
the indoor unit.
- The outside diameter of the drain connection
on the indoor unit is 32mm(1-1/4 inch).
Piping material: Polyvinyl chloride pipe
VP-25 and pipe fittings
- Be sure to execute heat insulation on the
drain piping.
Heat insulation material: Polyethylene
foam with thickness more than 8 mm.
Pipe clamp
Indoor unit
Maintenance
drain port
Ceiling
Drainage
hole
Upward
routing
not allowed
Drain test
The air conditioner uses a drain pump to drain
water.
Use the following procedure to test the drain
pump operation:
- Connect the main drain pipe to the exterior
and leave it provisionally until the test comes
to an end.
- Feed water to the flexible drain hose and
check the piping for leakage.
- Be sure to check the drain pump for normal
operating and noise when electrical wiring is
complete.
- When the test is complete, connect the flexi-
ble drain hose to the drain port on the indoor
unit.
Feed water
Drain Pump
Drain pan
CAUTION
!
The supplied flexible drain hose should not
be curved, neither screwed. The curved or
screwed hose may cause a leakage of
water.
HAND OVER
Teach the customer the operation and mainte-
nance procedures, using the operation manu-
al.
(air filter cleaning, temperature control, etc.)
Flexible drain hose
(accessory)
Main drain pipe
Drain
Glue the joint
port
Drain hose connection
Use the clip (accessory)
Hanger
distance
Hanger Bracket
1~15m
Max 300mm
(3-7/25
(11-4/5inch)
~49-1/5ft)
1/50~1/100 slope
Metal
clamp
Flexible drain hose
Insulation