Values at full load for G2.350 (Gas Ls) O
2
(%)
CALORA TOWER GAS 15S EX
4,5 - 5,1
(1)
CALORA TOWER GAS 25S EX
4,5 - 5,1
(1)
(1) Nominal value
Values at full load for
G31 (Propane) / G30
(Butane)
O
2
(%)
CO
2
(%)
(Ireland)
Diameter of the gas
diaphragm (Ø mm)
(1)
CALORA TOWER
GAS 15S EX
4,7 - 5,2
(2)
10,3
(2)
- 10,6
3,00
CALORA TOWER
GAS 25S EX
4,7 - 5,2
(2)
10,3
(2)
- 10,6
4,00
CALORA TOWER
GAS 35S EX
4,7 - 5,2
(2)
10,3
(2)
- 10,6
4,40
(1) Fit the gas restrictor in the gas block
(2) Nominal value
n
Checking/setting values O
2
at low load
1. Set the boiler to part load. Press the
[-]
key several times until
l3
is displayed on the screen.
2. Measure the percentage O
2
in the flue gases (with the cover of the
watertight housing removed) .
3. If the measured value is outside of the values given in the table,
correct the gas/air ratio.
Using the adjusting screw B, set the percentage O
2
for the
gas type being used to the nominal value. This should
always be inside the highest and lowest setting limit.
4
Turn screw B clockwise to obtain a lower O
2
value..
4
Turn screw B anticlockwise to obtain a higher O
2
value..
4. Check the flame through the flame inspection window.
The flame must not be detached.
T001998-A
rpm
kWµA
± 30
l/min
bar
Psi
St
ºC
ºCºFh
B
T000933-B
B
6. Commissioning
CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX
CALORA TOWER GAS 35S EX
62
22/04/2016 - 300026141-001-07
