IBC Technologies SL 80-399 - Pre-Startup Checks and Preparations; Commissioning and Calibration

INSTALLATION AND OPERATION INSTRUCTIONS
3-2
SL 80-399 MODULATING GAS BOILER
3.2 PRIOR TO START-UP
3.2.1 Pre-Ignition Checks
1. Ensureventingsystemiscompleteandsealtested.Conrmanycommon
venting system at the installation site is isolated and independent of the SL
boiler, that any holes left from removal of a previous boiler have been sealed,
andthatanyresizingoftheolduehasbeendone.Fillcondensationtrap.
2. Checkwaterpipingsystemisfullyushedandcharged,andthatallairhas
been discharged through loosened bleed caps. Note it is possible to switch
all pumps on/off from the keypad – without a call for heat. This greatly
simpliessystemllingandairbleeding(gotoInstaller Setup, drop down
to Pump Purge and toggle to On. When complete, return to Off, or this will
automatically occur with a call for heat). Use a minimum water pressure of 12
psig.Andconrmpressurereliefvalveisinstalledandsafelydrained.
3. Performanalcheckofelectricalwiring.
4. Using a manometer, check to see that adequate gas pressure is present
at the inlet gas supply test port. Requirements are minimum 5” w.c and
maximum 14” w.c.
3.2.2 Test Ignition Safety Shutoff
With the boiler in operation, test the ignition system safety shutoff device by
shutting the manual gas valve immediately outside the boiler case. Ensure
boiler has shut off and the appropriate Error information is displayed on the LCD
screen. To restart boiler, reset power.
COMMISSIONING
The SL 80-399 modulating boiler is factory calibrated to operate with natural
gas (or propane if so ordered) at sea level. The relevant valve adjustment
screws have been factory sealed using Loctite thread-lock compound, which
can be broken where required. However, no mixture adjustment shall be
performed unless done by a qualied technician using properly functioning
combustion analyzing equipment.
Upon initial set up, the installer can enter the site elevation to compensate
for altitude. Without such intervention, the gas valve will automatically de-rate
the maximum input in accordance with the density altitude, by approximately 2%
per 1,000’ above sea level. The gas valve’s zero governor will ensure that the
gas:air mixture is not affected at altitude.
Toverifytheproperoperationofthegasvalveintheeld,thefollowingprocedure
canbecarriedoutbyaqualiedtechnician(see Figure 28).
1. withasmall(1/8"or3mm)atscrewdriver,openthemanifoldpressure
test port by turning its centre- screw 1 full turn counterclockwise. Attach a
manometer between the manifold pressure test port and the reference line.
2. Allowtheboilertoignite/runagainstalargeload,tomaintainhighre
3. With the boiler at maximum output, use a 2 mm hex key to adjust the zero-
offset (see Figure 28, “A”) as required to achieve 0” wc. This adjustment is
only necessary if this screw has been tampered with.
3.3
Inlet gas supply pressure test port
Manifold pressure test port
Error displayed after testing ignition
safety shut off
WARNING
Fill trap with water before
boiler is rst red to prevent
exhaust fumes from entering
room. Never operate the
boiler unless the trap is lled
with water.
Failure to comply will result
in severe personal injury or
death.