2
Thermann Installer's Manual
Heat Pump Water Heaters
SPECIAL INFORMATION
-
The appliance may be used by children over 8
years of age and persons with reduced
physical, sensory or mental capabilities or a lack of experience and expertise, pro-
vided that they are supervised or they have been instructed on how to use the ap-
pliance safely and have understood the potential risks. Children must never play with
the appliance. Children must never clean the appliance or perform user maintenance
unless they are supervised.
-
Observe all applicable national and regional regulations and instructions.
-
Observe the minimum clearances (see chapter "Installation
/ Preparations
/ Siting the
appliance").
-
Observe the requirements concerning the installation room (see "Specification
/ Data
table").
-
The appliance is supplied with a flexible power cable without plug. In the case of a
permanent connection, the appliance must be able to be separated from the power
supply by an isolator that disconnects all poles with at least 3
mm contact separa-
tion. Contactors, circuit breakers or fuses can be used for this. This type of isolator
must be installed in the fixed electrical installation according to the regulations. For
Australia: Ensure that the appliance can be separated from the power supply by a
suitable isolator. Contactors, circuit breakers, fuses or general purpose electrical wir-
ing plugs can be used for this. The type of isolator must be installed according to the
electrical installation regulations.
-
Observe the safety measures to prevent contact with dangerous live currents.
-
Observe the MCB/fuse protection required for the appliance (see chapter "Specifica-
tion
/ Data table").
-
If the power cable is faulty, replace it with a new one. The power cable must only be
replaced (for example if damaged) by a qualified contractor.
-
The appliance is pressurised. During the heat-up process, expansion water will drip
from the safety valve.
-
Activate the valves at least every 6 months to prevent them from becoming blocked,
e.g. by limescale deposits.
-
Drain the appliance as described in "Installation
/ Maintenance and cleaning
/ Drain-
ing the cylinder".
-
A T&P valve or a cold water expansion control valve, or both, must be installed. Ob-
serve all applicable national and regional regulations and instructions.
-
The maximum pressure in the cold water supply line must be at least 20
% below the
lowest response pressure of all installed safety valves. Otherwise a pressure reducing
valve is required. If this is the case, install a pressure reducing valve in the cold water
supply line. The pressure reducing valve must be set to 540
kPa if a safety valve is in-
stalled; otherwise to 700
kPa.
-
Fit the drain pipe of the safety valve with a constant downward slope and in a room
free from the risk of frost.
-
Size the drain pipe so that water can drain off unimpeded when the safety valve is
fully opened.
-
The safety valve drainage aperture must remain open to atmosphere.
