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7
Start-Up
7.1 Hot Water System
ATTENTION!
Only operate hot-water heat pump when filled with water!
Hot Water System Requirements
The following materials may be found in the consumer's hot
water system:
Copper
Stainless steel
Brass
Plastic
Depending on the materials used in the hot water system (cus-
tomer installation), material incompatibility may lead to corrosion
damage. This especially applies to zinc-plated and aluminous
materials. If there is a risk of water contamination during opera-
tion, the installation of a filter may be required.
Hot Water System Start-Up
Filling hot water system via external connection.
De-aerate
hot water system (open hot-water taps at the highest extrac-
tion points until there are no more traces of air).
Check entire hot water system for leaks.
Supply voltage (plug in socket).
Switch on heat pump switch (see illustration in 3.1).
The desired hot water temperature is infinitely adjustable
(up to 60 °C) via the temperature control button.
If hot water consumption is high, the electric heating ele-
ment is switched on automatically or manually at air inlet
temperatures of below 8 °C.
Hot water preparation via a second heat generator is pos-
sible by switching on the heat exchanger loading pump (pro-
vided that the required electrical connection has been estab-
lished).
8
Maintenance
ATTENTION!
Before opening the hot-water heat pump, unplug mains plug and observe
possible coasting of ventilator!
General Information
Do not carry out any maintenance work on the refrigerating cir-
cuit of the heat pump. Only use a damp cloth and soap solution
for cleaning the hot-water heat pump.
ATTENTION!
Ensure water does not come into contact with the operator controls.
Furthermore, a one-off visual inspection for possible leakage in
the water system or stopping-up of the condensate outflow
should take place a few days after the maintenance work has
been carried out.
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8.1 Water Circuit / Condensate
Outflow
The water circuit check is limited to filters that may have been in-
stalled on-site, and possible leakage. Dirty water filters should be
cleaned and replaced if necessary. The seal valve in the con-
densed water hose should occasionally be checked for contami-
nation, and replaced if necessary.
8.2 Air Cycle
Maintenance work is limited to cleaning the evaporator (with a
vacuum cleaner) on a regular basis, and as needed.
ATTENTION!
Risk of injury caused by sharp-edged fins. Fins must not be deformed or
damaged!
If air filters are used, they should be regularly checked for con-
tamination and cleaned and replaced if necessary.
8.3 Corrosion Protection Anode
The corrosion protection anode installed in the hot water cylinder
should be electrically checked on a regular basis, at least every
two years after start-up, and be replaced if necessary. Electrical
checking is carried out by means of a suitable electric current
meter, without draining the tank.
Procedure:
1)
Unplug PE cable from protecting anode tab.
2)
Connect ammeter (0 ... 50 mA) between PE cable and tab.
3)
Evaluation of protection anode wear:
Measured value > 1 mA ⇒ protection anode is in working
order.
Measured value < 1 mA ⇒ protection anode must be tested
or
replaced.
If electrical testing does not provide any clear results, a visual in-
spection of the protection anode is recommended. Should re-
placement of the protection anode [by a technician] be neces-
sary, the tank must be drained via the valve provided (fitted
during installation - see appendix).
ATTENTION!
Malfunctioning protection anodes reduce the operating life of the device!
(Reactive anode: electrically insulated magnesium anode with selenium
according to DIN 4753 Part 6)
8.3
E-9
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