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H2O BOILER
HC SERIES IOM Manual
2.7
Condensate Line
Connect 3/4” ABS tubing from the condensate drain “U” trap, directly to the floor drain. Notice
that the line MUST be pitched downward towards the floor drain to avoid traps. DO NOT install
any valve of any type, or any other instrument between the condensate drain “U” trap and the end
of the condensate line.
2.8
Gas Line Connections
The installation must conform with one or more of the following, as applicable:
Local codes or, in the absence of local codes, the
National Fuel Gas Code
, ANSI
Z223.1/NFPA 54 and/or CSA B149.1,
Natural Gas and Propane Installation Code
.
The
Manufactured Home Construction and Safety Standard, Title 24 CFR, Part 3280
and/
or CSA Z240 MH Series,
Manufactured Homes
.
Local codes or, in the absence of local codes,
Recreational Vehicles
, NFPA 1192 and/or
CAN/CSA-Z240 RV Series.
Review the instructions below before any installation:
The appliance and its individual shutoff valve must be disconnected from the gas supply
piping system during any pressure testing of that system at test pressures in excess of ½ psi
(3.5 kPa).
The appliance must be isolated from the gas supply piping system by closing its individual
manual shutoff valve during any pressure testing of the gas supply piping system at test
pressures equal to or less than ½ psi (3.5 kPa).
The appliance and its gas connection must be leak tested before placing the appliance in
operation.
Install gas line for the appliance according to applicable codes.
The gas train comprises a pressure regulator, low gas pressure switch, solenoid valve, and the main
gas valve Figure 6. Gas pressure at the inlet to the pressure regulator should always remain in the
7” – 14” wc range. If higher pressures are present, consult the local gas company or gas installation
codes for installing the appropriate gas pressure regulator. Gas line from the meter to the
boiler/water heater should be of adequate size to prevent undue pressure drop. A manual shut off
valve should be installed in the gas line upstream of the pressure regulator, so that the control
NOTE:
To ensure proper flow of condensate, it is recommended to install a “drain vent” of
approximately 1foot height at 0.5-1 foot downstream of the U trap.
D-VAC Sales Inc. Email: dmann@dvachvac.com Tel: (516) 256-3131 www.dvachvac.com
