Daikin EKHWCH300B, Инструкция по установке и эксплуатации

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2 Product description
Installation and operating manual
12
EKHW(D/C/P)(300/500)(P)B
Daikin Altherma ST (Hot water storage tank)
008.1633099_00 – 06/2020
Economical operation
The full area heat insulation of the storage tank ensures very low
heat losses in use and means that the best use is made of the heat
energy being applied.
Modular extension facility
If the heat output of a single hot water storage tank is not adequate,
you can interconnect several storage tanks in a modular manner.
Electronic control
A control system integrated in the heat generator controls all heating
and hot water functions for the direct heating circuit, a mixed heating
circuit which can be connected as an option and a storage tank
charging circuit.
2.3 Scope of delivery
▪ Hot water storage tank
▪ Bag of accessories
2‒6 Content of bag of accessories
a Carrier loops (only required for transport)
b Cover screen
c Hose connection piece for safety overflow
d Fitting spanner
2.4 Optional accessories
2.4.1 Electric immersion heaters
In addition to the heating possibilities via the corrugated stainless
steel pipe heat exchanger from various different heat sources and
energy carriers, the hot water storage tank can also be charged
using an electric immersion heater.
Electric immersion heaters applicable for all Altherma ST models:
2‒2 Overview and technical data
Type EKBU2C EKBU6C
Operating voltage 230 V / 50 Hz 230/400 V /
50 Hz
Heating output 2 kW 2, 4, 6 kW
Temperature range
(1)
30-78°C
Cable length 2 m
Heating element length 1.10 m
Electric immersion heater sets applicable for EKHWP in combination
with heat pumps are available. Please look into the technical data
book of the heat pump for the appropriate set and for technical
details.
2.4.2 Non return valves
To prevent heat losses through the connection lines when the
circulation pump is turned off and during periods without drinking
water draw-off (gravitational circulation), circulation brakes should be
built into the connections to the hot water storage tank (see
" 2‒1
Legend" [
4
6]).
2.4.3 Dirt filter
If the hot water storage tank is connected to a heating system with
steel pipes, radiators or non-diffusion-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 price list).
2.4.4 Scalding protection
There is a danger of scalding at hot water temperatures over 60°C.
Fitting scalding protection enables the hot water temperature to be
varied continuously and limited from 35 - 60°C.
▪ Scalding protection VTA32
▪ Screw connection set 1"
▪ Circulation set with scalding protection VTR300
2.4.5 Solar storage tank extension kit
If the heat output of a single hot water storage tank is not adequate
you can interconnect several hot water storage tank modules.
This means that both the stainless steel heat exchangers for post-
heating and the hot water heat exchangers are interconnected in
accordance with the Tichelmann principle
"6 Hydraulic" [ 4 20].
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 kit 2 CON SXE
▪ FlowGuard FLG
The installation and operation of this accessory component is
described in detail in the individual operating and installation
instructions provided.
2.4.6 KFE filling connection
For convenient filling and draining of the hot water storage tank, you
can connect the KFE filling connection (KFE BA).
(1)
Temperature control and a safety temperature limiter (STB) are already integrated in the electric immersion heater. The electric immersion
heater is delivered ready for fitting.