EN
Operating Instructions
Calorifier
CombiValCR (200-2000)
CombiValCSR (300-2000)
MultiValCRR(300-2000)
MultiVal CSRR(540-2000)
Dear heating system owner,
You have made the right choice with the Hoval calorifier. It
offers you all the advantages of state-of-the-art, economical
water heating.
Please read these instructions through carefully.They contain
information on how to operate the calorifier and points that
have to be observed.
Our sales and service personnel will be happy to provide
you with any further information you may require.
To be filled out by the heating technician:
Calorifier type
Order no.
Year of construction
Electrical heating inset
Max. permissible operating pressure
in the calorifier
kW
6 bar
Max. permissible operating pressure
in the heating system
Important telephone numbers
Heating contractor
Plumber
Electrician
Gas supplier
Chimney sweep
4 210 845 / 00 - 08/11
Subject to modifications
Important instructions / Commissioning / Temperature setting
4 210 845 / 00
= Safety instructions:
(Information for the protection of persons)
Set-up and installation
Please note that the calorifier may only be set up, connected and commissioned by an authorised specialist
company.
The heating water must also be drained completely on
the heating side.
Only an authorised specialist company may drain the tank
and the heating system, take the heating system out of
operation or put it back into operation.
Modifications
Modifications to the calorifier, to the water and heating
connections or to the electrical connections may only be
carried out by trained technicians.
The safety valve and the exhaust line must not be modified in any way.
Commissioning
=Precautions:
(instructions for the protection of the hot water
system)
Care and maintenance
Interior
Regular cleaning and desludging of the calorifier is necessary for reasons of hygiene and cost-effectiveness.
The cleaning intervals will depend on the water quality,
the operating temperature and the hot water consumption.
Cleaning work may only be performed by the Hoval customer service or an authorised specialist company.
We recommend that you conclude a maintenance contract
with Hoval customer service or an authorised specialist
company.
Cleaning the casing
Cleaning is best performed with a cloth moistened with a
soap solution.
Taking out of operation / frost protection
If there is a frost hazard, the calorifier must be kept in
operation.
If it is taken out of operation, the calorifier must be completely drained.
Hot water may emerge during draining!
Where there is a frost hazard, it is also important to note
that not only the water in the calorifier and in the hot water
pipes can freeze, but also that in the cold water pipes and
the armatures.
For this reason, it is advisable to drain all pipes and armatures containing water.
2
Initial commissioning is carried out by the installation
technician.
The first time the water is heated and where the system
has been switched off for longer periods, hot water and
the full calorifier output only become available after expiry
of the heating-up time.
While the water is being heated, some water will emerge
from the exhaust line of the tank safety valve. This is normal
and no cause for concern.
The exhaust line of the safety valve must remain
open at all times.
Temperature setting
For reasons of economy and hygiene, we recommend that
the hot water temperature is set to 60°C.
A hot water temperature of 60°C prevents the formation
of legionellae and ensures maximum cost effectiveness in
line with the Energy Ordinance.
Where the water contains high levels of calcium carbonate
(hard water), the formation of limescale in the tank and
the overall hot water installation and armatures is delayed.
In addition, there is a danger of scalding at higher
hot water temperatures.
The temperature is normally set at the boiler control panel.
The temperature can also be set via an adjustable thermostat installed on the calorifier (available as an accessory).
If the calorifier is equipped with an electrical heating inset,
the temperature is set via the thermostat dial of the electrical heating inset.
In the case of combined systems, e.g. solar plants, the
temperature can also be set via other control devices.
Warranty / checklist in the event of faults
4 210 845 / 00
Warranty
With the purchase of the Hoval calorifier, you have a comprehensive warranty in accordance with our terms of sale
and warranty.
Please note that this warranty only applies if the following work is performed exclusively by an authorised specialist
company:
- Set-up, installation, connection and commissioning
- Modifications to the installation
- Maintenance and cleaning (interior) and opening of the flange
- Draining, taking out of operation, putting back into operation
Checklist in the event of faults
Fault
Inspection/cause
Remedy
No hot water in heat
generator operating
mode
Heat generator is not switched on
Check readiness for operation and switch
heat generator on
Hot water energy selector switch is not set to
heat generator operating mode
Switch to heat generator operating mode
Charging pump blocked or defective
Unblock or replace charging pump (call in
customer service)
Electr. heating inset not switched on
Switch on or switch to heating operation
with electrical heating inset
No power supply at electrical heating inset
Check fuse, where applicable, switch on
additional switch
Overtemperature protection has tripped
Check or replace thermostat (call in customer service)
Heating flow temperature too low for hot
water operation
Increase heating flow temperature for hot
water charging
Primary water quantity too low
Set charging pump to higher output
Limescale deposits on heat exchanger
Have cleaning and decalcification performed (call in customer service)
In heating operation with electrical heating
inset: Limescale on the heating rods
Decalcification or replacement of the electrical heating rods (customer service)
Domestic hot water
temperature too low
Thermostat or controller switches off too
soon
Readjust thermostat or controller
Leakage at calorifier
Sealing on maintenance flange
Tighten flange screws and, where necessary, sealing (customer service)
NO hot water with the
electr. heating
Too little hot water, heating-up time too long
Please
note!
In the event of malfunctions, please
carry out the checks listed above.
If this does not remedy the fault,
please call your heating contractor
or Hoval customer service.
3
United Kingdom
Hoval Ltd.
Northgate
Newark
Nottinghamshire NG24 1JN
Phone +44 1636 67 27 11
Fax
+44 1636 67 35 32
www.hoval.co.uk
Switzerland
Hoval AG
General Wille-Strasse 201
CH-8706 Feldmeilen
Phone +41 44 925 61 11
Fax
+41 44 923 11 39
www.hoval.ch
Germany
Hoval GmbH
Karl-Hammerschmidt Strasse 45
D-85609 Aschheim-Dornach
Phone +49 89 92 20 97-0
Fax
+49 89 92 20 97-77
www.hoval.de
Austria
Hoval Gesellschaft mbH
Hovalstrasse 11
A-4614 Marchtrenk
Phone +43 50 365 - 0
Fax
+43 50 365 - 5005
www.hoval.at
Italy
Hoval s.r.l.
Via per Azzano San Paolo, 26/28
I-24050 Grassobbio (BG)
Phone +39 035 52 50 69
Fax
+39 035 52 58 58
www.hoval.it
France
Hoval SAS
6, rue des Bouleaux
F-67100 Strasbourg
Phone +33 3 88 60 39 52
Fax
+33 3 88 60 53 24
www.hoval.fr
Conservation of Energy Protection of the Environment