Nibe UKV 20-1000, Installation And Operating Manual

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10 Buffer tanks
UKV 20-220/300/500/750/1000
5. SERVICE
Report any malfunctions in the buffer tank operation to the
authorized service centres.
The tank may only be repaired / serviced by an au-
thorized service since improper repair can cause safety
risks, and the loss of product warranty.
CAUTION
Parameter U/m
Tank model
UKV 20-220 UKV 20-300 UKV 20-500 UKV 20-750 UKV 20-1000
Energy efficiency class - C C C C C
Storage volume (V)*
l 218,3 296,0 495,6 740,7 991,0
Standing loss (S)* W 77,1 94,6 97,5 122,5 140,4
Max tank operating temp. °C 85
Max tank operating pressure bar 6
Electric heating module
connection
inch 2” female
2 x 2”
female
2 x 2”
female
2” female 2” female
Weight kg 61 83 111 170 200
7. TECHNICAL DATA
6. RECYCLING AND DISPOSAL
According to the NIBE rules, the products have been manufac-
tured of high quality materials using the latest technologies
and solutions that do not endanger the environment.
When selecting materials, we took into account both the pos-
sibility of reuse of materials (recycling) that can be disassem-
bled and separated from materials unsuitable for recycling,
as well as risks arising from the processing of materials not
intended to reuse.
The purchased device consists in more than 90 % of parts that
can be recycled and reused, so they are safe for the environ-
ment and human health.
In order to prevent damage to piping systems and
environmental pollution, the product should only be
disassembled and taken out of service by appropriately
qualified specialists.
CAUTION
At end-of-life, take care that the product and all the
equipment were disposed of in accordance with appli-
cable regulations.
CAUTION
The packaging, in which the product is delivered, is made
mainly of materials suitable for recycling and utilization.
After installation, you should ensure the proper disposal
of packaging in accordance with applicable regulations.
Information
Warnings:
• Never activate circulation of the heating medium unless
the buffer tank is filled with the heating medium.
• Never operate the buffer tank if you find any malfunction
in the safety valve operation.
• Never install any device (such as cut-off and/or check
valves, etc.) between the tank and the safety valve or
open expansion tank (except T-pipes.)
• Any repairs of the buffer tank by the user are forbidden.
• Stopping water leaks from the safety valve is not allowed.
Table 1. Technical data
• Limit the setpoints of the heating medium temperature
controllers in the buffer tank supply lines to 85 °C.
• Check the operation of the safety valve periodically as
described by the manufacturer of the valve in order to
check whether it is not clogged
• In order to eliminate any odour of hydrogen sulphide (caused
by bacteria in the oxygen deficient water), we recommend
observing the periodic cleaning of the tank and replacement
of the anode and, in addition periodically increase the hot wa-
ter temperature in tank to prevent bacterial growth.
• Report any malfunctions in the buffer tank operation to
the authorized service centres. You can find the complete
list of our authorized service centres
• Open the vent to vent the buffer tank before the heating
season start.
• Check filling of the C/H system from time to time.
Practical Recommendations:
4.5 Warnings and Practical Recommendations
* Acc. to EU regulations No. 812/2013 & 814/2013.
INSTALLATION AND OPERATING MANUAL
To prevent bacterial growth we recommend to make
sure a periodically increase of hot water temperature for
a shorter time at regular intervals e.g. every 14
th
day.
CAUTION