Commissioning - Benchmark ZWB 7-29 CC1 Installation And Servicing

Commissioning

5 Commissioning
61
136 365
364
135
295
170
171
Fig. 30
8.1 Pressure gauge
15 Safety valve
27 Automatic vent
61 Reset button
135 Master switch
136 Temperature control for central heating
170 Service cocks on CH flow and return
171 Hot water
172 Gas cock (shown in on position)
173 Cold water service cock
295 Appliance type sticker
310 Temperature control for hot water
317 Multifunction display
358 Condensate trap
363 Indicator lamp for burner
364 Indicator lamp for power supply
365 "Chimney sweep" button
366 Service button
367 ECO button
422 Digital timer
22
27
317 366 367
ECO
363
E
310
CH
C
172 173
358
422 2
170
6 720 610 599-04.2O
5.1 Commissioning
Never run the appliance when empty or
unpressurised.
The operational CO
i
tory and no adjustment is necessary when
installing a natural gas fired appliance.
Benchmark Water Treatment: For optimum perform-
ance after installation, this boiler and its associated cen-
tral heating system should be flushed in accordance
with the guidelines given in BS7593:1992 - Treatment
of water in domestic hot water systems. Full instruc-
tions are supplied with proprietary cleansers sold for
this purpose. If an inhibitor is to be used after flushing,
it should be used in accordance with the inhibitor man-
ufacturers instructions.
To drain the appliance shut the system valves and open
the system drain point.
Suitable flushing agents and inhibitors are available
from Betz/Dearborn Tel.: 0151 4209563, Fernox Tel.:
01799 550811 and Salamander Tel.: 0121 378 0952.
Instructions for use are supplied with the these
products.
8.1
15
level is set at the fac-
2
6 720 610 599 GB (03.02)