7
WARNING: Failure TO INCREASE THE VENT SIZE TO
SIX INCHES AND/or assure that the manifold pressure is
set to proper value listed for applications at high altitudes
will cause unsafe venting, asphyxiation, and will void IAS
Certification.
GAS CONNECTIONS and Gas Regulator
Before connecting the gas supply, check the rating plate
on the right side of the front cover to be sure that the heater
is rated for the same gas to which it will be connected.
In the United States: The installation must conform with
local codes or, in the absence of local codes, the National
Fuel Gas Code ANSI Z223.1/NFPA 54.
In Canada: The Installation should conform with CGA B149
INSTALLATION CODES and /or local installation codes.
NOTE: The Aquastar 125 B”S” is supplied with a gas
pressure regulator that must be installed on the heater
before attaching the gas supply line. See figure 4.
Failure to install the gas regulator as shown in figure
4 will be a violation of IAS certification of the unit.