Layout Of Appliance - Worcester benchmark ZWB 7-25 R 25 HE Design, Installation And Servicing Instructions

Details of the appliance
1.6

Layout of appliance

221.1
221.2
27
226
20
29
271
43
9
63
358
64
7
355
6.1
88
295
417
Fig. 2
4 Heatronic control
6 Heat exchanger safety temperature limiter
Hot water NTC sensor
6.1
7 Testing point for gas supply pressure
8.1 Pressure gauge
Flue gas temperature limiter
9
15 Relief valve
18 Pump
18.1 Pump speed selector switch
20 Expansion vessel
27 Automatic air vent
29 Air gas Mixer unit
32.1 Electrode assembly
36 Temperature sensor in CH flow
43 CH flow
63 Adjustable gas flow restrictor
Adjusting screw for min. gas flow volume
64
88 3-way valve (combi)
98 DHW flow switch (combi)
6
120
102
32.1
36
6
415
416
18
423
18.1
418
15
8.1
88
4
6 720 610 599-00.TD
102 Inspection window
120 Fixing points
221.1 Flue duct
221.2 Combustion air intake
226 Fan assembly
Appliance type sticker
295
271 Flue duct
355 Plate-type domestic hot water heat exchanger
358 Condensate trap
415 Cover plate for cleaning access
416 Condensate collector
417 Clip for fixing outer case
418 Data plate
423 Siphon
6 720 611 441 GB (03.11)