Glow-worm Betacom C - Manual (Page 41)

41
Diagram 11.8
SECURING
SCREWS
SUPPLY PIPE
CONNECTION
14586
GAS
ISOLATION
VALVE
Diagram 11.7
15525
Gas rate
Natural gas in (m 3 / h) Appliance Maximum net heat input in kW
nominal
Combustion Products
CO
2
(Vol -%) CO (ppm)
Appliance
Natural gas Propane Natural gas Propane
Max Min Max Min
Betacom 24c 8,60 ± 5 3,85 ± 5 9,60 ± 5 4,40 ± 5 < 400 < 400
Betacom 30c 8,10 ± 5 2,90 ± 5 9,30 ± 5 3,35 ± 5 < 400 < 400
tolerance tolerance tolerance tolerance
Betacom 24c
Betacom 30c 28,5
25,7
3,02
2,72
11.6 Checking the gas rate
The boiler is fitted with a fully modulating automatic gas valve. With all other gas appliances turned off
measure the gas rate at the gas meter. Check that the gas rate is as stated in the table below:
Checking the combustion products
While adjusting the burner pressure at maximum and minimum, combustion products can be checked
according to the table below:
11 Commissioning
Appliance
Combustion Products
CO
2
(Vol - %) CO (ppm)
Natural gas
tolerance
Propane
tolerance
Natural gas
tolerance
Propane
tolerance
Max Min Max Min
Betacom 24c 8.60 ± 0.5 3.85 ± 0.5 9.60 ± 0.5 4.40 ± 0.5 < 400 < 400
Betacom 30c 8.10 ± 0.5 2.90 ± 0.5 9.30 ± 0.5 3.35 ± 0.5 < 400 < 400