Installation Instructions

DHW heating
6 720 645 817 (2010/09)
60
9 DHW heating
9.1 General
DHW heating is only possible via an indirectly heated
DHW cylinder. This must be integrated downstream of
the low loss header.
Selecting DHW cylinders
Junkers KBR 120-280-3 A gas condensing boilers can be
combined with the following cylinder models from the
Junkers DHW cylinder range:
• SK 300/400/500-3 ZB
• SK 800/1000-ZB
• SE 300-1
The DHW cylinders SK 300... - SK 1000... are equipped
with an enamelled smooth tube internal indirect coil.
This enables a high cylinder heat input plus rapid
heat-up in spite of the large volume.
The SE ...-1 series of cylinders is equipped with
austenitic stainless steel on the DHW side. This makes
these cylinders neutral towards common potable water.
The following are selection criteria:
• Required level of comfort (number of occupants,
use), measured variable: N
L
factor
• Available boiler output
• Available space
Cylinder selection according to N
L
factor
N
L
factor
according to
DIN 4708 at
max. output
Max. output
in kW
Available
capacity
in l
Description Siting Part number
From
page
SK ...
8.7 45 293 SK 300-3 ZB floorstanding 7 719 001 369 65
13.5 60 388 SK 400-3 ZB floorstanding 7 719 001 370 65
17 78 470 SK 500-3 ZB floorstanding 7 719 001 371 65
35 200 760 SK 800-ZB floorstanding 7 719 001 676 65
45 225 950 SK 1000-ZB floorstanding 7 719 001 675 65
SE ...
11.5 45 288 SE 300-1 floorstanding 7 719 003 274 69
Tab. 33