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Installation, 10 lpg conversion - all models – Glow-worm Ultracom hxi User Manual

Page 26

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0020107233_00 - 06/11 - Glow-worm

INSTALLATION

- 26 -

G31 BURNER % CO

2

CHECK

(case on)

SETTING

(case off)

10.1

10.1

10.1

10.1

10.5

9.8

+ 0.0

- 0.8

+ 0.5

- 0.5

+ 0.0

- 1.0

+ 0.3

- 0.8

+ 0.3

- 0.8

+ 0.2

- 0.8

Throttle

TURNS

5

5

8

CO/CO2

0.004

0.004

0.004

0.004

0.004

0.004

9.2 to 10.2

9.8 to 10.8

9.2 to 10.2

9.2 to 10.2

10.0 to 11.0

9.2 to 10.2

MODEL

12hxi

15hxi

18hxi

24hxi

30hxi

38hxi

GAS VALVE

OFFSET

ADJUSTMENT

THROTTLE

ELECTRICAL

PLUG

PRESSURE

TEST POINT

13513

10.10 lPG ConVeRSIon - all models

As an option, a chargeable boiler performance and function

service can be provided by Glow-worm Service by calling

telephone No. 01773 828100.

noTe: Steps 10.1 and 10.3 will need to be completed before

the appliance can be converted.

This conversion should only be carried out by a

competent

person approved at the time by the Health and Safety

Executive.

During the conversion to Propane use of a suitable flue gas

analyser is necessary.

● The person carrying out a combustion measurement should

have been assessed as competent in the use of a flue gas

analyser and the interpretation of the results.

● The flue gas analyser used should be one meeting the re-

quirements of BS7927 or BS-EN50379-3 and be calibrated in

accordance with the analyser manufacturers’ requirements.
● Competence can be demonstrated by satisfactory

completion of the CPA1 ACS assessment, which covers

the use of electronic portable combustion gas analysers in

accordance with BS 7967, parts 1 to 4.

As an option a chargeable boiler only commissioning service

can be provided by Glow-worm Service by calling telephone

No. 01773 828100.

Tools required to make the conversion are a 2mm Allen key

and an electricians screwdriver.

Ensure that the appliance supply pressure = 37mbar.

(1) Access the gas valve.

(2) Refer to diagram 10.5 and turn the gas valve throttle fully

clockwise.

(3) Turn the throttle anti-clockwise by the number of turns

shown in the table.

(4) Ensure that the gas analyser is set to the correct fuel

setting - Propane.

(5) Attach combustion analyser to the combustion test point,

refer diagram 11.1.

IMPoRTanT: Remember to replace the cap on

completion of the test.

(6) Make sure that the external controls are calling for heat,

then turn the mains electrical supply and gas service

isolation valve on.

(7) Switch the boiler on. The boiler should fire automatically.

noTe: If the appliance does not light & goes to lockout

(F1) turn the throttle anti-clockwise a further turn and

press the reset button. The appliance will (after a short

delay) again attempt to fire. Repeat this procedure (up

to a total of 2 extra turns on the throttle screw) until

the appliance lights. Several ignition attempts may be

needed, to purge gas through the appliance, before a

successful ignition is achieved.

Diagram 10.5

(8) Check and adjust the burner %CO

2

at maximum rate.

Press the “reset” button on the controls fascia, release

and immediately press and hold in the “+” button. After

approximately 5 seconds “Hi” will be displayed. Pressing

the mode button when “Hi” is selected will force the boiler

to maximum rate, the display will flash between “Hi” and

the “default display” this will indicate the boiler has been

forced to maximum.

(9) If necessary, adjust the burner % CO

2

to the value shown

in the “SETTING” column of the table, by turning the

throttle screw (anti-clockwise to increase), see diagram

10.5 no more than 1/8 of a turn, waiting a minute to allow

for the appliance to stabilise before checking or making

further adjustments.

(10) Exit the check sequences press the “mode” and “+”

buttons simultaneously, this will reset the boiler to the

default display.

(11) Check the burner % CO

2

, at minimum rate, to the value

shown in the “SETTING” column of the table.

(12) If adjustment is required, press the “reset” button on the

controls fascia, release and immediately press and hold

in the “+” button. After approximately 5 seconds “Hi” will

be displayed. Pressing the “+” or “-” buttons will cycle

between “Hi” and “Lo”. Pressing the mode button when

“Lo” is selected will force the boiler to minimum rate, the

display will flash between “Lo” and the “default display”

this will indicate the boiler has been forced to minimum.

(13) Adjustment of the %CO

2

is very coarse so carefully

adjust the %CO

2

to the value shown in the “SETTING”

column of the table with the offset adjustment, see

diagram 10.5 and %CO

2

Table (Rotate clockwise to

increase).

(14) To exit the function press the “mode” and “+” buttons

simultaneously, this will reset the boiler to the default

display.

(15) Repeat (8) and check CO

2

at maximum rate - adjust if

necessary. Check that the CO/CO2 ratio is less than the

value in the table below.

(16) Remove analyser probe from the test point and replace

the cap. Refit the control panel.

(17)

IMPoRTanT: fit the lPG conversion label supplied

in the documentation pack to the inner front panel

alongside the data label. Refit the inner door and

outer door.

(18) Continue commissioning from 10.5.

13868