Rotex HPSU compact 304, Instruction Manual

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7 x Service and maintenance
BA ROTEX HPSU compact 4 - 09/2013
39
7 Service and maintenance
7.1 General service and maintenance
Regular inspection and maintenance of the HPSU compact

reduces energy consumption and ensures a long life and smooth
operation.
Have the inspection and maintenance carried out by
authorised and trained HVAC engineers once a year,
ideally
before the heating period . This can prevent
faults during the heating period.
ROTEX recommends an inspection and maintenance
contract to ensure regular inspection and maintenance.
Legal requirements
According to the F-gases directive (EC) No. 842/2006 pos. 3,

operators (or owners) must regularly service their stationary
cooling systems on a regular basis, check for leaks and remedy
any leaks found as quickly as possible.
All maintenance and repair work on the refrigeration circuit must
be documented in the operating manual. This obligation results
from the directive published on June 14th 2006 in the EU official
gazette concerning greenhouse gases.
Operators of ROTEX heat pump systems are subject to the

following obligations:
If the total filling quantity of the system with refrigerant
is less than 3 kg, there is no European legal require-
ment for testing intervals. ROTEX however, would

recommend entering into a maintenance contract and
recording the work carried out in the operating manual
in order to preserve guarantee claims.
● With a total filling quantity of the system with refrigerant of
3 kg – 30 kg or from 6 kg upwards in hermetic systems:

Checks by certified personnel at intervals no longer than
12 months .
● Compulsory documentation (maintenance and leak test) in
the operating manual, stating type and amount of filled-in

or recovered refrigerant and the applied test method (in
accordance with EC No. 1516/2007). Operator must keep
documentation for at least five years after compiling it and
show it to the responsible authority upon request.
● Responsibility of the operator of systems for recovering

F-gases by certified personnel.
Certified people are those who have proof of expertise
for the European Community for work on stationary
refrigeration systems (heat pumps) and air conditioning
systems, according to the F-Gases Directive (EC)
No. 842/2006.
– Up to 3 kg coolant fill quantity: Expert certificate
category 2
– 3 kg coolant fill quantity or over: Expert certifi-
cate category 1
7.2 Removing the protective cover
Fig. 7-1 Unscrew the bolt and
unlock the rear protec-
tive cover. Fig. 7-2 Remove the protective
cover upwards and

towards the front.
7.3 Activities to be performed annually
WARNING!
Improperly carried out work on the HPSU compact and
its components that have been connected as an option
can endanger human life and health and adversely
affect the operation of the these components.
● Work on the HPSU compact (such as maintenance
or servicing) is only to be carried out by persons
who are authorised and who have successfully
completed
qualifying technical or vocational
training and who have taken part in advanced
training sessions recognised by the appropriate
responsible authorities. These include in particular
certified heating engineers, qualified electri-
cians and HVAC specialists
, who because of
their professional training and expert
knowledge , have experience in the professional
installation and maintenance of heating, cooling
and air conditioning systems and heat pumps.
WARNING!
Under the cover of the HPSU compact temperatures
of up to 90 °C can arise during operation. During

operation, hot water temperatures > 60 °C arise .
– Touching components during or after operation
leads to a risk of burns .
– Water discharged during maintenance and servic-
ing work can cause scalding on contact with the
skin.
● Before carrying out servicing and maintenance
work, allow the HPSU compact to cool down suffi-
ciently.
● Wear protective gloves.