Starting The Appliance And Checking The Gas Rate; Think Controller - Baxi Ecogen 24/1.0 Installation & Servicing Instructions Manual

04. November 2008 08:50
Tuesday
Easy Menu
Button

THINK Controller

Fig. 49a
STEP 1
---------------------------------------------------
Chimney sweep function
Deaeration function
STEP 3
303:Chimney sweep function
Burner output
Adjust? Eng burner min
56
© Baxi Heating UK Ltd 2012
Menu
Button
Selector Button
STEP 2
Chimney sweep function
STEP 4
303:Chimney sweep function
Burner output
Adjust? Eng + Supp bu max
11.0 Commissioning
11.5
1. The gas valve is factory set and in normal running the burner
pressure cannot be measured as it is controlled by the fan and
modulates as demand on the boiler alters.
2. The gas rate must be checked (as in accordance with Gas
Regulation 98 Paragraph 26/9) with any other appliances and pilot
lights turned off.
3. The gas rate measurement may be made with the Engine and
Supplementary burners both on maximum.
Approximate rate is:- ±5% 2.68 m
G20 (Natural Gas) 1.04 m
(Propane Gas), see Section 4.1. NOTE: For retro-fit systems using
a wiring centre - ensure that all external controls are calling for
heat.
IMPORTANT: The combustion for this appliance has been
checked, adjusted and preset at the factory for operation on
the gas type specified on the appliance data plate. No
measurement of the combustion is necessary. Do not adjust
the air/gas ratio valve.
4. Having checked:
• That the boiler has been installed in accordance with
these instructions.
• The integrity of the flue system and the flue seals.
• The integrity of the boiler combustion circuit and the
relevant seals.
Proceed to put the boiler into operation as follows:
5. Activate the chimney sweep function by pressing and holding
the easy menu and menu buttons (Fig. 49a) whilst in the normal
operation screen untill chimney sweep function option appears.
Press the Selector Button to switch the chimney sweep function
on.
6. The THINK Controller will show Chimney Sweep Function on.
On
Chimney Sweep function Burner Output Adjust appears.
• Press the Selector Button. 'Engine burner min' will flash.
• Use the wheel to scroll through the six options
7. Choose the maximum operation f) and ok your choice. No
matter what the previous state is, the burners will restart
before achieving the desired rate. As soon as both burners are lit
as shown by the flame numbers
8. With the boiler operating in the maximum rate condition check
that the operational (working) gas pressure at the inlet gas
pressure test point (Fig. 50) is in accordance with B.S. 6798 & B.S.
6891.
9. Ensure that this inlet pressure can be obtained with all other gas
appliances in the property working.

Starting the Appliance and Checking the Gas Rate

/hr at 20mb inlet pressure for
3
/hr at 37mb inlet pressure for G31
3
a) Engine burner minimum
b)
Engine burner maximum
c) Supplementary burner minimum
d) Supplementary burner maximum
e) Engine and Supplementary burners minimum
f)
Engine and Supplementary burners maximum
.