4
EN1R--9170 0109R1--NE
·
Adjust the CO
2
% at the desired value at low output with
offset adjustment screw. Turn offset adjustment screw
clockwise to increase CO
2
%.
·
Operate boiler on high output.
·
Turn the throttle adjustment screw with a until the burner
pressure required is recorded on the pressure gauge.
·
Adjust CO
2
% with throttle adjustment screw at the desired
value. Turn screw driver
either way
to increase CO
2
%.
·
Replace cap screw and tighten pressure taps.
WARNING
High inlet pressures as used for gas G30 or G31, can
cause oscillation. This is dependent on type of
appliance.
The oscillation shall not exceed 10 % of the outlet
pressure, measured at maximum inlet pressure
according to EN 483.
The oscillation has to be verified for the complete
modulation band of the appliance.
Please contact your Honeywell representative if the
maximum of 10 % is exceeded.
Oscillation outlet pressure to be recorded with
oscilloscope etc. via transducer without damping.
CHECKOUT
Final checkout of the installation
·
After any adjustment, check pressure taps and gas
connections with an approved leak detection fluid for gas
leakage.
·
After installation and any adjustment start the appliance
and observe a complete cycle to ensure that all burner
components function correctly.
MAINTENANCE AND SERVICE
Under normal circumstances no maintenance or service is
required.
WARNING
Do not disassemble the gas control; it contains no
replaceable components.
Attempted disassembly or repair may damage the gas
control
Screws on the valve that have been sealed must
never be removed.
Home and Building Control
Combustion Controls Center Europe
Honeywell BV
Phileas Foggstraat 7
7821 AJ Emmen
The Netherlands
Tel: +31 (--)591 695911
Fax: +31 (--)591 695200
http://europe.hbc.honeywell.com