Prior To Start-Up; Commissioning - IBC SL 28-160 Installation And Operating Instructions Manual

WARNING
Fill trap with water before
boiler is first fired to prevent
exhaust fumes from entering
room. Never operate the
boiler unless the trap is filled
with water. Failure to comply
will result in severe personal
injury or death.
Error displayed after testing ignition
safety shut off
Inlet gas supply pressure test port
3-2
SL 28-160 MODULATING GAS BOILER

3.2 PRIOR TO START-UP

3.2.1 Pre-Ignition Checks
Ensure venting system is complete and seal tested. Confirm any common
1.
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 flue has been done. Fill condensation trap.
2. Check water piping system is fully flushed 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 Touch Screen – without a call for heat.
This greatly simplifies system filling and air bleeding (go to Installer Setup,
System Settings, Site Settings, change Manual Pump Purge 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 confirm pressure relief valve
is installed and safely drained.
3. Check to see that adequate gas pressure is present at the inlet gas supply
test port. Open the test port (using a small (1/8" or 3 mm) flat screwdriver,
open the test port by turning its center-screw 1 full turn counterclockwise.
Connect a manometer and open the gas control valve. Requirements are
minimum 5" w.c and maximum 14" w.c. Check to ensure no gas leaks.
4. Perform a final check of electrical wiring and provide power to the boiler to
initialize operation.
3.2.2 Test Ignition Safety Shutoff
With the boiler in operation, test the ignition system safety shutoff device by
shutting the gas control valve immediately outside the boiler case. Ensure boiler
has shut off and the appropriate Error information is displayed on the Touch
Screen. To restart boiler, reset power or press "Clear Errors" in the Advanced
Diagnostics section.

COMMISSIONING

3.3
The SL 28-160 modulating boiler is factory calibrated to operate with natural
gas (or propane if so ordered) at sea level. The Low Fire (Zero Offset) valve
adjustment cap has been factory sealed using paint-seal compound. This cap
must not be tampered with. The Low Fire (Zero Offset) screw is not to be
adjusted in the field. The High Fire (Gas:Air ratio) adjustment screw may have to
be adjusted to attain optimum combustion results if required, however, no mixture
adjustment shall be performed unless done by a qualified technician using
properly functioning and calibrated combustion analyzing equipment.
The controller will automatically detect the installations altitude and make the
appropriate adjustments to operate the boiler up to 4,500 feet in elevation without
de-ration. The boiler will automatically de-rate at altitudes above 4,500 feet.
Refer to the IBC Altitude tables for further information.
To verify proper operation of the gas valve in the field, the following procedure
can be carried out by a qualified technician.
INSTALLATION AND OPERATION INSTRUCTIONS