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5. MAINTENANCE (YEARLY CHECK)
DANGER Risk of electric shock!
• Isolate the appliance from the power supply using the fuse or an-
other protection device before carrying out any work on electrical
parts .
NOTICE Damage to the appliance!
• Do not shut off the water supply while the appliance is in operation.
5.1 GENERAL INSPECTIONS
Check the appliance regularly for faults .
• Keep the appliance and the installation location clean.
• Dust the system regularly using a damp cloth. In this way, leaks can
be identified and repaired at an early stage. • Check all connections
regularly for tightness .
5.2 CLEANING
• Check and clean the evaporator regularly.
• The air inlet and air outlet apertures must be unobstructed and ac-
cessible .
• Check the air grille, air filter and air ducts regularly and clean them
if necessary .
5.3 CONDENSATE PIPE
• Check the drain and/or hose for contamination and clean if neces-
sary . Don’t disconnect the condensate hose form the condensate
drain, this will damage the foam .
5.4 REFRIGERANT CIRCUIT
NOTICE Refrigerant leak!
Maintenance work may only be carried out on the refrigerant circuit
(e.g. on the compressor, condenser, evaporator, expansion vessel,
etc.) by a certified contractor.
5.5 HIGH LIMIT SAFETY CUT-OUT
The appliance is equipped with an automatic safety facility . This safety
facility switches off the DHW cylinder in order to prevent the risk of
injury if the DHW cylinder water temperature rises above a certain limit.
NOTICE The high limit safety cut-out may only be reset by a qualified
contractor! The high limit safety cut-out must be reset manually, but
only once the cause of the fault has been eliminated .
Resetting the high limit safety cut-out
• Remove the front protective covering.
• Remove the protective cap from the heating element.
Temperature control unit
1 . Reset button
2. Temperature setting of the high limit safety cut-off
After resetting, ensure that the temperature controller is in the position
shown in figure.
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Installation and user manual
5.5 HIGH LIMIT SAFETY CUT-OUT
The appliance is equipped with an automatic safety facility. This
safety facility switches off the DHW cylinder in order to prevent the
risk of injury if the DHW cylinder water temperature rises above a
certain limit.
NOTICE: The high limit safety cut-out may only be reset by a
qualified contractor! The high limit safety cut-out must be reset
manually, but only once the cause of the fault has been eliminated.
Resetting the high limit safety cut-out
•
Remove the front protective covering.
•
Remove the protective cap from the heating element.
Temperature control unit
1. Reset button
2. Temperature setting of the high limit safety cut-off
After resetting, ensure that the temperature controller is in the position shown in figure.
5.6 DRAINING THE CYLINDER
CAUTION: Risk of scalding! Check the appliance’s DHW temperature before opening the safety valve. Wait until the
water temperature has dropped enough to prevent scalding and other damage!
•
Isolate the appliance from the power supply.
•
Close the water shut-off valve at the cold water inlet and open one DHW tap.
•
Open the drain tap.
-or-
•
Open safety valve.
•
Wait until the water stops flowing out of the safety valve drain tap and the appliance has been completely drained.
5.7 “SERVICE” MENU
This menu is meant to assist the contractor and may be used by the contractor only.
