Drain Piping; Electrical Wiring; General Check - Hitachi RAS-3FSVNE Betriebshandbuch

13. DRAIN PIPING

13.1. DRAIN DISCHARGING BOSS
When the base of the outdoor unit is temporarily utilized as
a drain receiver and the drain water is discharged, drain
boss is utilized to connect the drain piping.
Model
DBS-26
Connecting procedure
1. Insert the rubber cap into the drain boss up to the
extruded portions
2. Insert the boss into the unit base and turn
approximately 40 degree counterclockwise.
3. Size of the drain boss is 32 mm (O.D.)
4. A drain pipe should be field-supplied

14. ELECTRICAL WIRING

14.1. GENERAL CHECK

1. Ensure that the field-supplied electrical components
(mains power switches, circuit breakers, wires,
connectors and wire terminals) have been properly
selected according to the electrical data indicated.
Make sure that they comply with national and regional
electrical codes.
2 Following the Council Directive 89/336/EEC and its
amendments 92/31/EEC and 93/68/EEC, relating to
electromagnetic compatibility, next table indicates
maximum permissible system impedance Z
interface point of the user's supply, in accordance
with EN61000-3-11
MODEL
RAS-3FSVNE
RAS-4FSVNE
RAS-5FSVNE
3. Check to ensure that the power supply voltage is
within +/-10% of the rated voltage.
4. Check to ensure that power supply has an impedance
low enough to warranty not reduce the starting
voltage more than 85% of the rated voltage.
5. Check to ensure that the ground wire is connected.
6. Connect a fuse of specified capacity.

WARNING:
Check to ensure that screws for terminal block are
tightly tightened.
Applicable Model
RAS-FSVNE
at the
max
Z (Ω)
max
0.35
0.27
0.26
NOTE:
Do not use this drain boss set in a cold area, because
the drain water may freeze.
This drain boss is not sufficient to collect all the drain
water. If collecting drain water is completely required,
provide a drain-pan that is bigger than the unit base
and install it under the unit with drainage.

−
CAUTION:
Check to ensure that the indoor fan and the outdoor
fan have stopped before electrical wiring work or
periodical check is performed.
Protect the wires, drain pipe, electrical parts, from
rats or other small animals. If not protected, rats may
damage unprotected parts, and at the worst, a fire will
occur.
Wrap the accessory packing around the wires, and
plug the wiring connection hole with the seal material
to protect the product from any condensed water and
insects.
Tightly secure the wires with the cord clamp inside
the indoor unit.
Lead the wires through the knockout hole in the side
cover when using conduit.
Secure the cable of the remote control switch with the
cord clamp inside the electrical box.
Electrical wiring must comply with national and local
codes. Contact your local authority in regards to
standards, rules, regulations, etc.
Check that the ground wire is securely connected.
Connect a fuse of specified capacity.

DANGER:
Do not connect of adjust any wiring or connections
unless the main power switch is OFF.
Check that the earth wire is securely connected,
tagged and locked in accordance with national and
local codes.
NOTE:
Check and test to ensure that if there is more than
one source of power supply, that all are turned OFF.
13
DRAIN PIPING
19
Nº Description
Drain hole of base

Drain Pipe

Extruded portion

Drain Bos

Rubber Cap
