Instructions / Assembly

®
System 1738 Installation Methods 1
Use only System 1738 in flue gas venting
applications for category II and IV
appliances generating a max flue temp
of 149
o
F (65
o
C).
System 1738 must be installed in
accordance with NFPA 54/ANSI Z223.1
National Fuel Gas Code.
NOTICE
NOTICE
NEVER use or test System
1738 with compressed air or
other compressed gases.
Use of compressed air
or gas in System 1738
pipe and fittings can result in explosive
failures and cause severe injury or
death.
WARNING
Follow all preparation and installation
procedures.
Carbon monoxide (CO)
can cause brain damage
or death.
ONLY use a vent material
approved by the
appliance manufacturer
for venting of combustion gases.
READ & UNDERSTAND the instruction
manual and safety messages before
installing a UL 1738 venting system.
WARNING
System 1738 Safety Alerts
WARNING