Timberk WHEL-3 OSC [7/36] Attantions
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Timberk WHEL-3 OSC [7/36] Attantions

Timberk WHEL-3 OSC [7/36] Attantions
www.timberk.com • instant water heater
7
Connection to water mains
The water heater shall be connected to the water mains with water pressure
from 0.03 to 0.6 MPa. The water heater can be fed with water from a tank,
where water level shall be at least by 4 m above the water heater level
NOTE:
nstallation of the water heater in the operation place and
arrangement of a power supply line shall be performed
by a specialized organization, representatives of the
manufacturer’s service department, or specialists
having permits for installation of electric equipment
with observations of safety requirements.
If the installation and operation instruction manual
of the water heater is violated, the appliance is not
subject to warranty service and the manufacturer does
not bears the responsibility.
NOTE:
Before installation of the water heater, flush water
pipes with flowing water.
Fig. 2
When pressure in the water mains exceeds 0.6 MPa, OBLIGATORY
installation of a pressure reducing valve is required.
It is recommended to use a shutoff safety valve at the cold water inlet.
Connect the water heater to the water pipeline (threaded pipe outlet with
obligatory installation of a valve to shut off water feed to the water heater)
using a separate flexible hose (! not included to the package).
CERTAINLY install all sealing gaskets included to the package and coarse
filter, which is fitted at the cold water inlet.
At that, it is necessary to observe the OBLIGATORY REQUIREMENT:
The water feed shutoff valve shall be installed upstream of the water heater
inlet.(Proper installation of the water heater is shown in Fig.2)
PROHIBITED:
Installation of a shutoff valve at the hot water outlet from the water
heater. (Fig.2a) This will result in failure of the water heater and may inflict
harm to the user.
Make sure that the water heater is operable passing water flow through it.
Check tightness of all connections and, if necessary, tighten nuts and
mounting screws including screws in flanges of the heating vessel.
Connection to electric mains
The water heater shall be connected to the 220VAC electric mains with a
three-core electric cable (not more than 15 m long to the maximum).
Minimum wire section of 3x1.5 mm2 (copper) with a 16A circuit breaker -
for water heaters of WHEL-3... series
Minimum wire section of 3x2.5 mm2 (copper) with a 25A circuit breaker -
ATTANTIONS!
When the water heater is operated in particularly
difficult (including obsolete) water pipeline systems with
a large quantity of suspended particles and impurities
in flowing water, application of purification filters at
the inlet of the water heater is OBLIGATORY. Use this
recommendation; otherwise, non-fulfilment of this item
may affect service life of the product and warranty
service conditions (up to refusal of warranty liabilities
by the product manufacturer and manufacturer’s
service departments).

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