Installation and operating instructions
14
Daikin EKHWP/EKHWC/EKHWD
Daikin High-efficiency hot water storage tank
008.1618744 – 03/2017
3
x
Product description
3.4
Optional accessories
3.4.1 Electric immersion heaters
In addition to the heating capability via the corrugated stainless
steel pipe heat exchanger and various different heat sources and
energy carriers, the Daikin high-performance hot water storage
tank can also be charged using an electric immersion heater.
For EKHWC / EKHWD
Tab. 3-2 Electric immersion heaters - overview and technical data
1) Temperature regulation and a safety temperature limiter (STB) are already in-
tegrated in the electric immersion heater. The electric immersion heater is de-
livered ready for fitting.
2) The longer heating element means that the solar zone on the EKHWC is also
heated if electric charging is used. This can reduce the efficiency of the solar
system.
For EKHWP (booster heater)
Tab. 3-3 Booster Heater - Overview and technical data
3.4.2 Non return valves
To prevent heat loss from the connection pipes when the circu-
lation pump is switched off and during periods when no domestic
water is drawn off (gravity circulation), you should fit circulation
brakes in the connections for the Daikin high-performance hot
water storage tank (see tab. 3-1).
3.4.3 Dirt filters
If the Daikin high-performance hot water storage tank is con-
nected to a heating system with steel pipes, radiators or non-dif-
fusion-proof floor heating pipes, slurry and swarf could enter the
hot water storage tank and cause blockages, local overheating or
corrosion. This can be prevented by fitting a dirt filter or sludge
trap (see Daikin price list).
3.4.4 Scalding protection
There is a danger of scalding at hot water temperatures over
60 °C. Fitting scalding protection enables the hot water temper-
ature to be varied continuously and limited from 35 - 60 °C.
– Scalding protection VTA32
– Screw connection set 1"
3.4.5 Solar storage tank extension kit
If the heat output of a single Daikin hot water storage tank is not
adequate you can interconnect several EKHWP / EKHWC /
EKHWD modules.
This means that both the stainless steel heat exchangers for
post-heating and the hot water heat exchangers are intercon-
nected in accordance with the Tichelmann principle (chapter 7
"Hydraulic connection").
With seasonal variations in demand these individual units can be
added or taken out of service accordingly. In this way the total hot
water output can be manually matched to the actual demand.
The following components are offered:
– Solar storage tank extension kit CON SX
– Solar storage tank extension kit 2 CON SXE
– FlowGuard FLG
The installation and operation of this accessory component is de-
scribed in detail in the individual operating and installation in-
structions provided.
3.4.6 KFE filling connection
For convenient filling and draining of the Daikin hot water storage
tank, you can connect the KFE filling connection (KFE BA).
Type
EHS/500/1
EHS/500/5
EHS/500/6
Operating voltage
230 V / 50 Hz
230/400 V /
50 Hz
230/400 V /
50 Hz
Heating output
2 kW
2, 4, 6 kW
2, 4, 6 kW
Temperature range
1)
30-78 °C
Safety temperature
limit
1)
95 °C
98 °C
Cable length
—
—
Heating element length
1.42 m
1.42 m
1.10 m
Screw-in thread
R 1½"
R 1½"
R 1½"
Suitable for
All EKHWD +
EKHWC
2)
All EKHWD +
EKHWC
2)
Only for
EKHWC
Type
BO3s F
Operating voltage
230 V / 50 Hz
Heating output
3 kW
Temperature range
35-65 °C
Cable length
—
Heating element length
0.9 m
Screw-in thread
R 1½"
Suitable for
All EKHWP
Summary of Contents for EKHWP300B
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