Boiler Installation - Bosch WORCESTER Greenstar Danesmoor Kitchen Regular ErP+ 18/25 Installation, Commissioning And Servicing Instruction Manual

Flue centres
185
D
*Centre line
measurement to
the outside of the
760*
boiler case
FRONT VIEW
Fig. 35 Flue centres
Flue opening
▶ Follow figure 36 to mark the centre of the flue (1, & 2) for rear
opening, (2 & 3) for side opening or (1 & 4) for top opening.
** All horizontal flue sections must rise away from the
boiler by 52mm per metre to ensure that condensate
flows back into the boiler for safe discharge via the
condensate waste pipe.
▶ Make an opening (F, G or H) using a core drill or similar at a size
relative to the wall thickness as shown below:
125mm Ø flue:
Wall thickness mm Flue hole size Ø mm
150 - 240
240 - 330
330 - 420
420 - 500
F G
3
155
F
+5
** This measurement depends
on the distance that the boiler
is from the wall, 760mm is a
minimum measurement.
Fig. 36 Flue opening
Greenstar Danesmoor Kitchen ErP+ and Kitchen System
RS 155 CF 170
D
SIDE VIEW
155
160
165
170
H
4
RS 155
CF 170
G
1
190
H
760**
6720808218 23 1Wo
ErP+ - 6 720 821 686 (2018/11)
5.3

Boiler installation

1. Lift the front of the top panel (A) upwards to disengage the ball stud
connections (B) and pull forwards to release from the brackets (C) at
the back to remove. Pull front panel (D) forward from the bottom and
near the top disengaging the ball studs from their connections (E)
and lift off the ledge (F) that runs along the bottom of the fascia to
remove.
2. Unplug burner lead (G) from control box.
2.
G
D
1.
Fig. 37 Boiler installation
Kitchen system only:
▶ In the case of the Kitchen system boiler, remove the retaining screw
[1] at the base of the expansion vessel.
▶ Pull the expansion vessel forward slightly and down to remove.
Place to expansion vessel outside of the boiler, taking care not to kink
or stretch the flexible hose.
2
Fig. 38
Installation
1.
A
I
6720808218-25.1Wo
1
C
B
F
E
E
27