Absolute ABS-1500 Installation And Operating Manual page 29

Gas-fired condensing hot water boiler

Table of Contents

Instructions: Adjust thermostat so appliance will operate continuously.

Test for spillage near and around the each of the gas appliances after 5 minutes of main burner operation.

After determining that each appliance remaining connected to the common venting system properly vents when

tested as outlined above, return all doors, windows, exhaust fan, fireplace dampers and any other gas burning

appliance to their normal positions.

Any improper operating of the venting system must be corrected so the installation conforms to either ANSI Z223.1/

NFPA 54 or CAN/CSA B149.1 gas installation codes. When resizing any portion of the common venting system,

the common venting system shall be resized to approach the minimum size as determined using the appropriate

tables in Part II of ANSI Z223.1/NFPA 54 gas code &/or CAN/CSA B149.1 natural gas and propane installation

code. When resizing any portion of the common venting system, the common vent system should be resized to

approach the minimum size as determined using the appropriate tables in Appendix F in the National Fuel Gas

code ANSI Z223.1/NFPA 54 and or CAN/CSA B149.1 Natural Gas and Propane Installation guide

General Notes for Venting

Any unused opening of the vent system be properly sealed.

Visually inspect the venting system for proper size and horizontal pitch, determine there is no blockage, restriction,

Leakage, corrosion and other deficiencies could cause an unsafe condition.

Close all building doors, windows and all doors between the appliances which remain connected to the common

venting system are located and other space of the building. Turn on clothes dryers, exhaust fan at maximum speed

and any appliance not connected to the common vent system, close fireplace dampers. Do not operate a summer

exhaust fan.

Place in operation each of the appliances installed in the common vent system being inspected. Follow the lighting