4 Set-up and installation
Installation and maintenance instructions
21
Daikin Altherma EHS(X/H)(B)-D
Heat pump (indoor unit) with integrated heat accumulator
008.1444099_01 – 11/2018 – EN
7 Carefully insulate pipework against heat loss and to avoid con-
densation (insulation thickness at least 20mm).
– Water shortage protection: The pressure and temperature
monitoring of the controller safely shuts off and locks the in-
door unit if there is a shortage of water. No additional water
shortage protection is needed in the construction.
– Avoid damage caused by deposits and corrosion: see
Chap. 1.2.5
Fig.4-29 Connecting a diaphragm expansion vessel
4.6.2 Connecting the drain
1 Connect the drain hose to the hose connecting piece for the
safety overflow (Fig. 3-1, item 23).
– Use transparent drain hose (draining water must be visible).
– Connect the drain hose to an adequately dimensioned waste
water installation.
– Drain should not be lockable.
Fig.4-30 Connection of the overflow hose
4.7 Electrical connection
DANGER: RISK OF ELECTROCUTION
Touching live parts can result in an electric shock and
lead to potentially fatal injuries and burns.
▪ Before beginning work on live parts, disconnect all of the
systems circuits from the power supply (switch off ex-
ternal main switch, disconnect fuse) and secure against
unintentional restart.
▪ Establishment of the electrical connection and work on
electrical components should only be performed by elec-
trical technicians in compliance with valid standards
and guidelines as well as the specifications of the en-
ergy supply company and the instructions in this manual.
▪ Never make constructional changes to connectors or
other electrical equipment components.
▪ Device covers and service panels must be replaced
as soon as the work is completed.
CAUTION
Increased temperatures can occur in the controller housing
of the indoor unit during operation. This can result in cur-
rently-carrying wires from reaching higher temperatures
during operation due to self-heating. For this reason, these
lines need to have a continuous use temperature of 90°C.
▪ For the following connections, only use cables with a
long-term use temperature ≥90°C: Heat pump outdoor
unit and optional: Electric backup heater (EKBUxx)
CAUTION
If the mains cable of the indoor unit is damaged, it must be
replaced by the manufacturer or his customer service or a
similarly qualified person to avoid hazards.
All electronic control and safety devices of the indoor unit are con-
nected ready for use and tested. Modifications on the electrical in-
stallation are dangerous and prohibited. The operator alone shall
bear responsibility for any resulting damage.
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