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Instruction Manual

ManualsBrandsLAARS ManualsWater boilerMascot llLMC - Start Up Guide
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LAARS Heating Systems
Step 4 MASCOT II START UP, CONTINUED
After completing the HIGH FIRE adjustments.
Press the DONE button.
NEXT:
To adjust LOW FIRE you will need to
go back into DIAGNOSTIC MODE. Then scroll
through the menu until you get to the MIN 10% screen.
To get back into DIAGNOSTIC MODE, follow the directions
starting at the bottom of page 13. You can then scroll through the menu.
Make the proper low fire CO
2 adjustments. The low fire CO2 adjustment on the Mascot II should equal the
high fire CO2. Example 9.0% high fire for natural gas, adjust the low fire to 9.0%.
When you are complete with low fire it is always good practice to check the High and Low fire one more time.
When finished, shut OFF the boiler, shut off the gas supply, remove the gas manometer and tighten the set
screw on the gas valve. Turn on the gas supply and check for gas leaks.
Reconnect the outdoor sensor to terminals 5&6.
Turn the boiler on. Test both heat and DHW. Adjust the mixing valve in accordance with
local code requirements.
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