7
Inspection and maintenance
Installation and maintenance instructions
38
Daikin Altherma EHS(X/H)(B)-D
Heat pump (indoor unit) with integrated heat accumulator
008.1444099_01 – 11/2018 – EN
INFORMATION
If the storage tank temperature falls below specific min-
imum values, the safety settings of the indoor unit prevent
the heat pump from being operated at low outside temper-
atures
- Outside temperature < -2 °C, minimum storage tank tem-
perature = 30 °C
- Outside temperature < 12 °C, minimum storage tank tem-
perature = 23 °C
Without backup heater:
The storage tank water must be heated to the required
minimum storage tank temperature with an external heater
booster.
With backup heater (
EKBUxx
):
At an outside temperature of < 12 °C and a storage tank
temperature of < 35 °C, the backup heater (EKBUxx) is
automatically switched on to heat the storage tank water to
at least 35 °C.
▪ To accelerate the heating process with backup heater,
temporarily set the [Config. of external heat source]
parameter = "1" and the [Ext. hot water power] para-
meter to the maximum value of the backup heater
[→ Main menu → Settings → Ext. source].
▪ In the [User] menu, select and switch on the [1x Hot Wa-
ter] parameter. After heating, switch the parameter off
again [→ Main menu → User → 1x load].
Without installed
solar system
1
Connect the
filling hose
with non-return valve (1/2")
to
the
"Solar - inflow" connection
(
Fig. 7-1
, item 1).
2
Fill the storage tank of the indoor unit
until water escapes at
the
overflow connection
(
Fig. 7-1
, item 23)
.
3
Remove the filling hose with non-return valve (1/2").
With installed
solar system
1
Install the filling connection with combined filling and draining
valve (accessory
KFE BA
) following the solar control and pump
unit (EKSRPS4).
2
Connect the
filling hose
with non-return valve (1/2") to the pre-
viously installed combined filling and draining valve.
3
Fill the storage tank of the indoor unit
until water escapes at
the
overflow connection
(
Fig. 7-1
, item 23).
4
Remove the filling hose with non-return valve (1/2").
Fig. 7-1
Filling the buffer tank - without connected DrainBack
solar system
Item
Designation
1
Solar - inflow
23
Safety overflow
Tab. 7-1
7.2.2
Filling, topping up the heating system
DANGER: RISK OF ELECTROCUTION
During the filling process, water can escape from any leak-
ing points and can cause an electric shock if it comes into
contact with live parts.
▪ Before the filling process, de-energise the indoor unit.
▪ After the first filling and before switching on the indoor
unit at the mains switch, check that all electric parts and
connection points are dry.
Summary of Contents for Altherma 3 ECH2O
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