beautypg.com

Maintenance, 17 draining – Glow-worm Ultracom2 cxi User Manual

Page 40

background image

0020085231_02 - 05/10 - Glow-worm

- 38 -

• Compare the value measured with the values indicated in the

table below.

Gas adjustment

G20

G31

CO2 case ON

9 ± 0.2 %

10.1 ± 0.2 %

CO2 case OFF

9.2 ± 0.3 %

10.3 ± 0.3 %

i

Safe combustion can only be verified by measuring

CO/CO2 ratio. This must not exceed the value

shown in the table under the section "Maximum Rate

and Adjustment".

16.1.3

Restarting

• Replace the cap

• Replace the appliance front panel.

Note: following the replacement of the front panel, the CO2

value will change: you can check that the value "case on" is

correct by the values in the previous table.

1

2

Key

1 Serial number stickers

2 Data label location

• Firmly attach the gas replacement label to the appliance in

the corresponding location (1) on the electrical box.

16.2 Restart - re-check commissioning

• Before putting the appliance into operation, follow the

instructions within the chapter Specific adjustment.

17 Draining

17.1 Heating circuit

B

A

1

2

Key

1 Length of hose (not supplied)

2 Drain valve

• Drain down the heating circuit of the boiler only, by closing

the heating flow and return isolating valves. See chapter

"Hydraulic connection ► Gas and water connections"

• Attach a length of hose (1) to the drain point and open the

drain valve (2).

• After draining, close the drain valve (2) and remove the hose.

17.2 Domestic Hot water circuit

• Drain the Domestic Hot Water circuit by closing the cold-

water isolation valve on the wall mounting jig.

• Open one or more hot water taps to drain the hot water

circuit.

MAINTENANCE