Daikin EKHWCH300B, Installation And Operating Manual

2 Product description

Installation and operating manual

6

EKHW(D/C/P)(300/500)(P)B

Daikin Altherma ST (Hot water storage tank)

008.1633099_00 – 06/2020

2

Product description

2.1

Design and components

The  legend  designation  for  the  following  graphics  in  this  chapter  is
listed in 

"   2‒1 Legend" 

[

4

 6].

The following graphics show the connections and dimensions.

  2‒1 Legend

Item

Explanation

Applicable to model

a

Storage tank (polypropylene double walled jacket with PUR hard foam heat insulation)

all

b

Mount for handle or solar R4 controller

all

c

Type plate

all

d

Fill level indicator

all

e

Safety overflow connection (1¼" AG (outer thread), 1" IG (internal thread))

all

f

Pressureless storage tank water

all

g

Hot water zone

all

h

Solar zone

S#A / S#B / S#F / S#L / S#K

i

Connection for electric immersion heater (R 1½" IG (internal thread))

all

j

Optional: Electric immersion heater (designated as a booster heater in heat pump systems.)

all

o

Thermal insulation shell for heat exchanger to provide heating support (WT5)

S#A / S#B / S#F / S#H /

S#I / S#L / S#K

q

Thermal insulation shell for pressurised solar heat exchanger (WT4)

S#F / S#K / S#L

r

Solar - flow layering pipe

S#A / S#B / S#D / S#H /

S#I / S#J / S#Q

s

Sensor pocket for tank temperature sensor

all

t

Drain-back solar - return flow

S#A / S#B / S#D /

S#H ‑ S#J / S#Q

Filling and draining connection for storage tank water

all

u

Drain-back solar - flow

S#A / S#B / S#D /

S#H ‑ S#J / S#Q

v

Pressurised solar - return flow

S#F / S#G / S#K ‑ S#M

w

Pressurised solar - flow

S#F / S#G / S#K ‑ S#M

x

Hot water connection

(1)

all

y

Cold water connection

(1)

all

z

Storage tank charging return flow (via 1st heat source)

(1)

S#A / S#B / S#D / S#F /

S#G / S#H ‑ S#M / S#O /

S#P

aa

Storage tank charging flow (via 1st heat source)

(1)

S#A / S#B / S#D / S#F /

S#G / S#H ‑ S#M / S#O /

S#P

ab

Storage tank charging return flow (via 2nd heat source)

(1)

S#I / S#L / S#P

ac

Storage tank charging flow (via 2nd heat source)

(1)

S#I / S#L / S#P

ad

Excluding Altherma RW and Altherma 3RW: Heating support outlet ↓

(1)

 (connect to heating return!)

Only Altherma RW and Altherma 3RW: Storage tank conditioning/heating support return flow ↑ (connect
to flow for heating)

S#A / S#B / S#F / S#H /

S#I / S#K / S#L

ae

Excluding Altherma RW and Altherma 3RW: Heating support inlet ↑

(1)

 (connect to return flow heat

generator!)

Only Altherma RW and Altherma 3RW: Storage tank conditioning/heating support flow ↓ (connect to flow
Altherma RW resp Altherma 3RW)

S#A / S#B / S#F / S#H /

S#I / S#K / S#L

af

QR-code sticker – access to detailed documents on Daikin web-site

WT1 Corrugated stainless steel pipe heat exchanger for domestic hot water using depressurised storage tank

water for heating up

all

WT2 Stainless steel corrugated pipe heat exchanger for charging storage tank via 1st heat source

S#A / S#B / S#D / S#F /

S#G / S#H ‑ S#M / S#P /

S#Q

WT3 Stainless steel corrugated pipe heat exchanger for charging storage tank via 2nd heat source

S#I / S#L / S#P

WT4 Stainless steel corrugated pipe heat exchanger for charging the hot water storage tank by pressurised

solar system

S#F / S#G / S#K ‑ S#M

WT5 Corrugated pipe stainless steel heat exchanger for heating support

S#A / S#B / S#F / S#H /

S#I / S#L / S#K

(1)

Recommended accessories (SKB (2 in number))