60
9.9 Commissioning
When lighting the boiler for the first time perform the following
procedure:
1.
See Figure 9.5 for location of Throttle and Offset Screws
on modulating gas valve.
2.
Set boiler to High Power using 9.11 Chimney Sweep.
3.
Perform combustion test on HIGH fire using
calibrated combustion analyzer. Adjust CO2 to
within specifications by rotating the Throttle
Screw, counter-clockwise
to increase CO2 level,
clockwise
to decrease CO2 level. See Figure 9-5.
After adjusting CO2 to correct level, verify:
(1) CO PPM level is in specified range
(2) flame signal is in specified range (> 1 Micro-Amp)
CO2 level, for HIGH fire are given in the Combustion
Table. Switch to LOW fire in boiler System Test. Turn
right knob counter-clockwise
until power level is 0%.
Adjust Offset Screw slowly and in small steps, no more
than 1/8 of a turn each time.
4.
Perform combustion test on LOW fire using calibrated
combustion analyzer. Adjust CO2 to within specifications
by turning Offset Screw, clockwise
to increase
CO2 level, counter-clockwise
to decrease CO2
level. After adjusting CO2 to correct level, verify
(1) CO PPM level is in specified range and
(2) flame signal is in specified range (> 1 Micro-Amp).
CO2 level, CO PPM level, and flame signal for LOW fire see
tables page 56 and 57.
5.
Exit System Test mode by pressing both
and
buttons for 6 seconds.
6.
Check ignition quality 4 times with front jacket off. Close
manual gas valve for 5 seconds and then re-open it. Boiler
will go through post purge – prepurge – ignition sequence.
Reset boiler if boiler goes into lockout.
9 - START UP PROCEDURE
9.8 De-Aeration Function (See Figure 9-2)
Used to eliminate air inside the heating circuit when boiler
is installed or after maintenance when water is drained from
primary circuit.
1.
Follow chart in Figure 9-2 to turn power to boiler on.
Code
"000"
appears on the display. Appliance is ready for
"commissioning" procedure.
2.
Press
and hold for 6 seconds. "
On
" appears on the
display for 2 seconds followed by code "
312
" indicating
"
de-aeration
" function is active. This function lasts 10
minutes.
3.
Open aeration valve to allow complete de-aeration.
4.
To manually exit this function, press
button and hold
for 6 seconds.
5.
Close aeration valve.
WARNING
Fire, explosion, and asphyxiation hazard! Boiler is set
for natural gas from the factory. If propane is to be
used the gas valve must be adjusted before turning
boiler on. Failure to follow these instructions could
result in death or serious injury.
!
9.7 Commission Setup (Gas)
1.
Check gas type supplied matches data shown on boiler's
rating plate. (or conversion label)
2.
Check gas piping to ensure it is sized and installed
correctly.
3.
Visually inspect gas piping to determine there are no open
fittings or ends, and all valves at unused outlets are closed
and plugged/capped.
4.
Ensure all gas connections are tight.
5.
Pressure test the gas line:
a. Test pressure must not exceed 15" w.c./37 mbar.
b. Purge gas supply pipe within boiler by unscrewing
pressure outlet on gas valve.
c.
Tighten the port when pipe has been sufficiently
purged.
d. Check piping and connections for leaks immediately
after gas is turned on. Shut off gas supply and make
necessary repairs if leaks are found.
6.
Open main gas supply.
7.
Purge air from piping. Confirm there is a steady gas
supply to the boiler.
8.
Open gas shutoff valve on boiler.
9.
Tilt control box forward by opening holding clip located on
side of the control housing.
10.
Check gas supply pressure at pressure outlet "Pi" on gas
valve unit. See Figure 9-5.
NOTICE
All connections shall be made and water added before
performing this function.
NOTICE
During initial ignition, burner may not ignite. This may
cause boiler to shut down until any air in gas pipes is
vented. Repeat ignition procedure until gas reaches the
burner. To reset boiler operation, press
for at least
2 seconds.
6.
If venting function is interrupted by power blackout, start
function again when power is restored. Press
and
together and hold at same time for at least 6 seconds.
7.
If display shows fault
E118
(low pressure in hydraulic
circuit) during de-aeration function, open filling tap on
appliance and restore correct pressure.
PN 240012363 REV. A [08/31/2018]
