Worcester ZWBR 7-28 HE plus Service Booklet

7 181 465 347 (01.07)4
Layout of Appliance (ZSBR/ZWBR)
1 Layout of Appliance (ZSBR/ZWBR)
Fan fixing
screws
Burner fixing
screws
Electrode
assembly:
Flame sensing
electrode
Ignition electro-
des
CH flow NTC
sensor
CH flow safety
temperature
limiter
Variable-charac-
teristic pump
Automatic vent
G
as flow
restrictor: adju-
s
ting screw for
C
O
2
max.
Gas valve:
adjusting
screw for CO
2
min.
Plate-type heat
exchanger
(ZWBR)
Hot water NTC
sensor (ZWBR)
CH flow
Silencer
Fan
Fan connector
Mixer unit
Condensation
trap
Gas supply
pipe
Flue gas safety
temperature
limiter
Testing points:
flue gas
air
Inspection
opening
Water switch
(ZSBR)
Change-over
valve motor
Change-over
valve
Heatronic
Transformer

Worcester ZWBR 7-28 HE plus Specifications

General

Brand	Worcester
Model	ZWBR 7-28 HE plus
Category	Boiler
Language	English