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2.8
How to Drain Hot Water Storage Cylinder
Isolate mains water supply at stop valve on Inlet Control Group and close -turn valve (handle at 90° to valve body) on
double check valve - see Fig. 14.
Fit a hosepipe to the tail of the drain valve (secure with "Jubilee" clip), and run open end to a low level where water
can be safely drained.
Open nearest tap(s) fully (to allow air to enter cylinder) before opening the drain valve above hose. Note: The lower
the open end of the hose, the faster will be the draining effect.
When refilling: check that the secondary expansion vessel pre-charge pressure is between 2.5 to 2.7 bar and allow
water to flow freely before closing tap(s).
2.9 Control Panel, Displays & Diagnostics
The boiler control fitted to Promax Store has been designed to provide safe, reliable and economical operation of the
boiler - see Fig. 15 for a guide to the control panel.
Fault finding, during both commissioning and subsequent maintenance is much simplified by the clear display of
lockout and error codes which appear in the "Status/Error Code Display%. What the codes represent and the remedial
actions required are explained on Page 47.
Full details of how to set up and use the programmer are in the User%s Instructions.
Reset
Fig. 15
28
Selector Switch
Display
Central Heating
Temperature Control
Domestic Hot Water
Temperature Control
© Baxi Heating UK Ltd 2015
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