Kospel WZ-80 Instruction sheet

KOSPEL S.A. 75-136 KOSZALIN UL. OLCHOWA 1
WARNING!
A cylinder is equipped with magnesium anode for anticorrosion protection.
The wear condition of the anode must be inspected annually and replaced
once every 18 months.
Please read and follow the installation and operating instruction carefully to ensure product reliability and
long lasting performance.
Kospel S.A may make a minor changes if necessary in the device that will not shown in the operating instruc-
tion, as long as the main features of the device remain the same.

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Strictly follow the installation
and use guidelines provided in
this instruction, otherwise we
may not honour your warranty
rights.
The device must not be installed
in a place that is exposed to
frost.
Hot water cylinder is a device for heating and storing the water. It’s suitable for co-operation with low-temperature
heating boilers. The main element of device is vitreous enamel coated steel tank.
• The WZ cylinder (container) – is equipped with pipe connectors for external connection e.g. to the coil of solid fuel
cooker.
• The WW cylinder (with a heating coil) – water is heated by build-in heating coil fed by a central heating boiler.
• The WB cylinder – is equipped with a heating coil and extra connectors for external connection e.g. to the coil of
solid fuel cooker.
• The WP cylinder (with a water jacket) – domestic water is heated indirectly by a circulating water in external jacket.
The device is suitable for domestic hot water heating in residential buildings, municipal dwellings, sanitary rooms
etc. The unit is designed for horizontal installation only. An immersion heater with temperature controller can be
installed for each unit. The immersion heater need to be installed in place of plug 1½’’ [16] (fig.2 abcd).
Product description
Technical data Domestic hot water cylinder WZ
-80
WW
-80
WB
-80
WZ
-100
WW
-100
WB
-100
WZ
-120
WW
-120
WB
-120
WZ
-140
WW
-140
WB
-140
WP
-100
WP
-120
WP
-140
Storage capacity l 80 100 120 140 100 120 140
Rated pressure
tank
MPa
0,6 0,6 0,6 0,6 0,6
coil 0,6 0,6 0,6 0,6
jacket 0,15
Rated temperature °C 80 80 80 80 80
Heat transfer surface area m20,3 0,3 0,4 0,4 0,7 0,93 1,0
Rated power (cylinder) 80/15/45°C* kW 9,5 9,5 11,4 11,4 19,3 25,2 26,8
Efficiency 80/15/45°C* l/h 235 235 295 295 405 526 567
Weight kg 24 26,5 27 28,5 31 31,5 33 36 36,5 36 39 39,5 38 45 49
Dimensions
(fig.2)
diameter mm 480 510
A
mm
485 690 860 930 460 628 700
B 690 858 930
C 920 1125 1295 1365 1085 1255 1325
Magnesium anode 3/4" mm 420 510 420 510
Following parameters: *80/15/45 C – heating water temp./ feed water temp./ domestic water temp. Flow rate of heating water through the coil – 2,67 m
3
/h.

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Connection to the water supply system
Connection to the water supply system must be made in accordance with binding law regulation.
It is a pressure device designed for connection to the water supply system. The max. system pressure should
not exceed 0,6 MPa. Install the pressure reducing valve if the system pressure is higher than 0,6 Mpa.
The device need to be connected to the water supply system in the following way:
- screw safety valve (e.g. ZB-4) to the 3/4’’ connector [1] (fig.2) using the reducing union in accordance with a direc-
tion as indicated by arrow located on valve body.
It’s not allowed to install the cut-off valve (or any flow reducer) either between cylinder and safety valve or on
the outlet. The safety valve must be installed on visible location for easy and fast leakage control.
- install the wye with a drain valve between a cylinder and the safety valve,
- connect a cylinder to the water supply system,
- install the cut-off valve on cold water inlet.
Domestic hot water inlet has to be fitted to the 3/4’’ connector [2] located on top of the cylinder (fig.2).
Each hot water cylinder is equipped with 3/4'’ [19] connector to connect to the domestic hot water circulation
system.
Mounting
• the device is designed for horizontal installation only,
• must be connected to the water supply and central heating system after mounting,
• pipes connection should be made in accordance with diagram in this installation instruction. Failure to observe the
installation instruction may invalidate the warranty and cause damage,
• the device must be mounted in the place and in such a way to avoid room flooding caused by leaking tank or con-
nectors.
Connection to the central heating system
• device must be fitted to the central heating system by pipe unions (1¼’’), the cut-off valves should be installed before
the pipe unions,
• appropriate rate of domestic hot water flow need to be ensured (described on page 3, below the table) to obtain
desired efficiency (described on page 3). It concerns the forced circulation installation (with a water pump),
• device need to be placed to get the high difference ( at least 1,5m) between a heat sources and cylinder. It concerns
the gravity circulation installation,
• example scheme of water supply system is shown in fig. 1a, 1b.
The device must be installed
and started-up by an authorised
serviceman.
A double-jacked cylinder has to
be installed on an open vented
central heating system only.
(max. jacket pressure should not
exceed 0,15Mpa).
A domestic hot water cylinder
heated directly by the coil of
solid fuel cooker must be in-
stalled in an open vented central
heating system and protected
against the excessive pressure
by expansion vessel and fittings
in accordance with binding law
regulations.
Installation

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ENG-019/
1
a) b)
Fig.1 Scheme of domestic hot
watercylinderconnection
a) domestichotwatercylinderwiththeheating
coilorwaterjacket.
b) domestic hot water cylinder fed directly by
thecoilinthesolidfuelcooker
 [1] - coldwaterinlet
 [2] - hotwateroutlet
 [3] - drainvalve
 [4] - hotwaterinlet
 [5] - hotwaterreturn
 [6],[7] - olidfuelcookerconnection
 [8] - cut-offvalve
 [9] - non-returnvalve
 [10] - safetyvalve
 [11] - pump
 [12] - solidfuelcooker
 [13] - centralheatingboiler
 [14] - pressurereducer(optional)
 [19] - connectorforcirculation
 [20] - circulationpump
 RB - safetypipe
 RD - inletpipe
 RW - expansionpipe
 NW - expansionvessel
 NWZ - expansion-supplyvessel
 ZW - coldwater
 CW - hotwater
 C - circulation
Solid fuel boiler must be in-
stalled in an open vented system
protected in accordance with
binding law regulation.

6
2b
2a
Fig.2a,2b Construction
 [1] - coldwaterinlet
 [2] - domestichotwateroutlet
 [4] - hotwaterinlet
 [5] - hotwaterreturn
 [6],[7] - solidfuelcookerconnection
 [15] - magnesiumanode
 [16] - cork1½“
 [17] - heatingcoil
 [19] - connectorforcirculation
 [21] - pipetemperaturesensor
 A,C - dimensions specified in the
technicaldatatableonpage3.
typ WW
typ WZ
R1¼ (external thread)
R1¼ (external thread)
G3/4 (internal thread)
G3/4 (internal thread)

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ENG-019/
2c
2d
typ WP
typ WB
Fig.2c,2d Construction
 [1] - coldwaterinlet
 [2] - domestichotwateroutlet
 [4] - hotwaterinlet
 [5] - hotwaterreturn
 [6],[7] - solidfuelcookerconnection
 [15] - magnesiumanode
 [16] - cork1½“
 [17] - heatingcoil
 [19] - connectorforcirculation
 [21] - pipetemperaturesensor
 A,B,C - dimensions specified in the
technicaldatatableonpage3.

R1¼ (external thread)
G3/4 (internal thread)
G3/4 (internal thread)
G1 (internal thread)

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Start-up Check pipe connections and make sure that you follow the device installation procedures before start-up.
The hot water cylinder, central heating system and heating coil need to be filled out with the water in the
following way:
• turn on the valve on cold water inlet,
• turn on the hot water outlet valve (outflow of water without the air bubbles indicates that the tank is full),
• turn off the outlet valves,
• turn on the valves connecting a heating system with the hot water cylinder,
• check for leaks,
• check the safety valve performance with accordance to “Operation” section on page 8.
Operation Recommendations
Follow the guidelines below for safety and product reliability:
• check the safety valve performance once every 14 days. Turn the valve cup to the left (or right) and lift the cup for
the water come out. Put the cup back to shut-off the incoming water flow. The device should not be used anymore
if the water does not come out (it indicates that the valve is broken).
• clean inside of the cylinder periodically. The frequency of cleaning depend on the degree of water hardness.
• check the wear condition of the magnesium anode rod (once a year). The rod should be replaced once every 18
months.
• heat up the water to 65
0
C periodically for hygiene reasons.
• failures or malfunctions notify to the authorised service.
• insulate the outlet and inlet pipe of coil to minimise the heat loss (recommended).
Above activities are beyond of the scope of warranty (should be done by user).
The water leak from outlet pipe of safety valve is normal effect of the device operation. Do not stop this leak,
it may causes device failure.
Do not use the device if there
is probability of safety valve
failure.
Rated temperature of hot wa-
ter cylinder should not exceed
800C!
The warranty does not cover
damage of thermal insulating
cover due to cylinder over-
heating. Cylinder emptying
Follow the guidelines below for safety cylinder emptying.
• turn off all valves connecting cylinder with the heat circulation system.
• turn off the valve on cylinder cold water inlet.
• turn on the drain valve.

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ENG-019/
Domestic hot water cylinder 1 pcs.
Set contents

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