Daikin RZVF50, Installation Manual

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CAUTION------------
• To avoid the attached drain hose (2) getting excessive
force, do not bend nor twist it.
It may cause water leakage.
• As for drain piping connection, do not connect the drain
hose directly to a sewage that gives off ammonia odor.
(The ammonia in the sewage may go through the drain
piping and corrode the heat exchanger of the indoor unit.)
• In case of centralized drain piping, carry out piping work
according to the procedure shown in the following
Fig.14.
Centralized drain piping
( Make a downward inclination of 1/100 )
or more to avoid stagnation of air.
L'.ti,
If water stagnates in the drain
piping, it may cause clogging of
drain piping.
Fig.14
• As for the size of centralized drain piping, select the size
that meets the capacity of indoor units to be connected.
(Refer to the technical document)
• Positioning the upward drain piping at an angle may cause
float switch malfunction and lead to water leakage.
• While replacing with new indoor unit, use the attached
new drain hose (2) and the metal clamp (1).
If an old drain hose or a metal clamp is used, it may
cause water leakage.
(2) After piping is finished, check if the drain flows
smoothly.
[When the electric wiring work is finished]
• Gradually pour 1 liter of water from the inspection port
at the bottom of the drain socket on the left side of the
drain socket into the drain pan giving caution to avoid
splashing water on the electric components such as
drain pump and confirm drainage by operating the
indoor unit under cooling mode according to
10. FIELD SETTING. (Refer to Fig.15)
Socket for maintenance
(with rubber cap)
Drain socket
Refrigerant piping
El. compo. box lid
El. compo. box
Terminal block for
power supply
Screw
Plastic water container
Fig.15
[When the electric wiring work is not finished]
• The electric wiring works (including earthing) must be
carried out by a qualified electrician.
• If a qualified person is not present, after the electric wir­
ing work is finished, check the drainage according to the
method specified in
[When the electric wiring work is
finished].
1. Open the control box lid and connect the single phase
230 V power supply to the terminal (L, N) on the
terminal block (X2M).
Connect the earth wiring to the earth terminal.
2. Make sure the control box lid is closed before turning
on the power supply.
• Throughout the whole process, carry out the work
giving caution to the wiring around the control box
so that the connectors may not come off.
3. Gradually pour 1 liter of water from the air outlet on
the left side of the drain socket into the drain pan
giving caution to avoid splashing water on the electric
components such as drain pump.
(Refer to Fig. 15)
4. When the power supply is turned on, the drain pump
will operate. Drainage can be checked at the trans­
parent part of the drain socket.
{The drain pump will automatically stop after 10
minutes.)
The drainage of water can be confirmed with water level
change in the drain pan through the access window.
• Do not connect the drain piping directly to the sew­
age that gives off ammonia odor.
The ammonia in the sewage may go through the
drain piping and corrode the heat exchanger of the
indoor unit.
• Do not apply external force to the float switch. (It
may result in malfunction)
• Do not touch the drain pump.
Touching the drain pump may cause electric shocks.
• Do not apply external force to the float switch.
External force may cause a float switch malfunction.
5. Turn off the power supply after checking drainage,
and remove the power supply wiring.
6. Attach the control box lid as before.
• On the completion of the drainage check, refer to the
following illustration, and use the provided large sealing pad
(5) and heat insulate the metal clamp (1) and drain hose (2)
Make sure that the
seam faces upward.
4 mm max.
Fig.16
Large sealing pad (5)
( accessory)
Metal clamp (1)
(accessory)
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