Metalac Bojler EZV 10N Guide

INSTRUCTIONSFORINSTALLATION,USEAND
CARE OFWATERHEATERS
EZV5and10litres

2
CONTENTS
TECHNICAL INFORMATION.............................................................3
INSTALLATION .................................................................................3
CONNECTION TO WATER SUPPLY....................................................5
STEPS FOR CONNECTION TO WATER SUPPLY.................................6
CONNECTION TO POWER SUPPLY...................................................7
USE AND MAINTENACE...................................................................7
WASTE DISPOSAL.............................................................................8

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TECHNICAL INFORMATION
Low capacity electrical water heaters are designed as open
system without pressure. Water heaters are made according to valid
standards and tested and certified by authorized laboratory.
The appliance is not meant for persons (including children)
of reduced psychophysical abilities, unless under supervision of per-
sons responsable for their safety, i.e. for persons not skilled for use
of the appliance. Improper use of the appliance, especially from the
side of children, should be prevented. Product technical characteris-
tics are given on the sticker„Table with Characteristics“ between con-
nection pipes.
Picture 1 shows the water heater with all components.
P – low installatiuon N – wall/ high installation
INSTALLATION
Only authorized persons are allowed to do installation / con-
nection of low capacity water heaters to water and power supplies.
Installation to be carried out by the scheme at specific place,
as near as possible to the point of use. Installation in the environe-
ment with possible low temperatures to be avoided (water freeezing
could cause the tank breakage)
Pict. 1 1. PP tank
2. washer
3. heater with seal
4. water inlet
5. insulation
6. ring
7. thermoregulator button
8. back
9. front cover

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Low capacity water heaters are available in two versions, for
high (N) and low (P) installation, according to the picture 2.
N – wall/ high installation P – low installatiuon
pict. 2
However all models are positioned vertically and fixed to
the wall with two screws. Since they work as open system, hot water
can be used only in one place.
Technical characteristics of low capacity water heater:
Type EZV 10 EZV 5
Model EZV 10N EZV 10P
EZV 5N EZV 5P
Capacity (litres) 10 5
Nominal pressure (Mpa) 0 0
Weight when full of water (kg) 14,2 8,1
Heater power (W) 2000 2000
Voltage 230 230
Time of water heating to 75°C (min) 22 11
Polypropylene (PP) tank is insulated with quality polystyrene
(PS) insulation providing that water stays hot for long. Water from
the PP tank is physiologically pure and therefore usable also for food
preparation
HOT
WATER
HOT
WATER
COLD
WATER
COLD
WATER CONNECTIONTO
WATERSUPPLY

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Pict. 3
Connection and installation measures:
TYPE EZV 10 EZV 5
Model EZV 10N EZV 10P EZV 5N EZV 5P
A(mm) 480 480 406 406
B(mm) 363 - 297 -
C(mm) 326 326 274 274
D(mm) 230 230 214 214
E(mm) - 166 - 161
F(mm) 190 190 140 140
CONNECTION TO WATER SUPPLY
Input for cold water on the water heater is marked with blue
ring while hot water output is marked with a red ring, which is to
be respected when connecting water heater to water supply. The
models marked N are for installation above the fitting (pipe), while
P models are for installation below fitting (pipe) - see Picture 2 Low
capacity water heater works without pressure (open system) and it is
possible to use water only at one spot in the house.
The fittigns/mixing pipes appropriate for work without pres-
sure have to be used with this water heater – water inlet into the fit-
ting not over 3-4 mm diameter, and for low installation models, the
fitting should have 3 pipes. On the inlet pipe before the mixing unit
a non-return valve should be mounted to prevent tank to empty in
case of pressure fall in water supply pipeline.

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If regular water pressure in the pipeline is higher than 0,6
Mpa (6 bar) a reduction valve has to be mounted on the cold water
inlet connection.
No device functioning with water should be installed to the
water heater output (dispenser, mash...) neither pipe longer than 1,2
m, as it would increase pressure inside the tank and damage it.
Fill the water heater with water before connecting it to elec-
tric power supply.
During the filling operation open the hot water pipe. When
water starts coming out the hot water pipe the water heater is full.
STEPS FOR CONNECTION TO THE WATER SUPPLY
1. Position the water heater at desired place near the fitting. For P ver-
sion the installation is made below the fitting and for N version above
the fitting (see picture 2)
2. Connect the water heater and fitting,using seals, blue ring on the
water heater corresponds to cold water inlet from the water supply,
and the red is for hot water exit from water heater to consumer.
3. Keeping the cold water valve closed, and hot water open (for sin-
gle lever fitings turnthe lever to„hot water“) let the water go into the
water heater and wait untill full. The tank is full when water starts
coming out the exit pipe.
4. Now the water heater can be connected to power supply.
Pict. 4
High installation
scheme
1. interlocking valve
2. reduction valve
3. Non-return valve
4. Mixing unit /pipe
CW cold water
HW hot water
H.W.
C.W.

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Low installation
scheme
1 interlocking valve
2 reduction valve
3 Non-return valve
4 Mixing unit /pipe
CW cold water
HW hot water
Pict. 4
CONNECTION TO ELECTRIC POWER SUPPLY
Low capacity water heater is connected to power supply only
if tank is previously filled with water. Copnnection is made by valid
standards for electrical installations. Installation is done by the power
supply cable PP/J 3x1 with cast plug and ground protection. The ap-
pliance has to be mounted in the way that plug is accessible (to be
unplugged if needed)
WARNING: before any intervention to the water heater it must be
unplugged from the power supply.
USE AND CARE
Switch on the heating of water by turning the button of the
regulator to a certain position, depending on desired temperature
Maximum water heating temperature is 75°C. The thermoregulator
switches off the heating automatically when desired temperature is
reached. During the heating the signal lamp is on, it goes off when
desired temperature is reached. If the temperature should be main-
tained, the thermoregulator button should be kept in positi8on pre-
viously set.
If connection cable is damaged only the producer, or its tech-
nical service or specialized person should replace it.
From time to time drops of water may come out from the
fitting pipe. This phenomenon can’t be prevented, therefore avoid
H.W.
C.W.

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tightening the valves which could damage them. If water heater will
not be used for longer period it is recomanded to disconnect it from
power supply and shut the valve. Depending on frequence of use
and water hardness, limescale should be removed from the PP tank
and connection pipes from time to time. Such operation should be
performed by an authorized person from the service net.
If the water heater is not filled with water it must not be con-
nected to electric power supply, otherwise the tank will be dam-
aged. The water heater is filled by opening only the hot water valve,
it takes some time untill water starts runnig out the fitting pipe. First
filling and heating should be monitored till the moment the signal
lamp goes o.
WASTE DISPOSAL – WHAT AFTER YOUR WATER HEATER IS NO
MORE USABLE
The accumulation water heaters and the
packing are made of recyclable materials. After
your water heater is not usable any more, it is for-
bidden to dispose it as non-selected waste. For
waste disposal, the water heater plactic and rubber
parts should be separated from metal parts, classi-
fied and left for recycling or final disposal according
to loacal regulations. Only by waste separation and
management you will protect the environment.
Revision 08.03.13. Srp: 08.03.13.
Metalac Bojler
Ljubicska 1,32300 Gornji Milanovac, Serbia
T. [phone], 712 818 F. + 381 32712 818
E. [e-mail]
CALL CENTAR:
Serbia: 0700 100 500
Montenegro, BIH, Croatia, Macedonia, Slovenia: [phone]
www.metalacbojler.com