ENERGY KINETICS EK1C, Installation & Service Manual

Page: 26 / 75

Accel CS Boiler - Gas Heat - Eighth Edition – January, 2015 25
CAUTION: The condensate drain line must remain unobstructed and allow free flow of the condensate. The condensate
must not be subjected to conditions where freezing could occur and obstruct flow. Flow obstruction can result in leakage
causing possible water damage to the boiler and surrounding area.
GAS PIPING
The boiler and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure
testing of the gas supply piping system at test pressures in excess of 1/2 psi (3.5 kPa, 14 in wc).
The boiler must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any
pressure testing of the gas piping system at test pressures equal to or less than 1/2 psi (3.5 kPa, 14 in wc).
A manual shut off valve and a sediment trap must be provided in the gas piping upstream of the electric gas valve at the
boiler.
The boiler and its gas connection must be tested for gas leakage before placing the boiler in operation. Close the manual
shut off valve during any pressure test with less than 14” w.c. Disconnect the Accel CS boiler and its gas valve from the
supply piping during any pressure test greater than 14” w.c. Purge all air from the gas supply piping.
Gas piping must be properly sized in accordance with the National Fuel Gas Code, ANSI Z223.1/NFPA 54, or according
to state and local codes as applicable. Gas piping must be sized to provide the maximum firing rate gas flow for all
appliances in the building. For natural gas installations, be sure to verify that the gas meter is properly sized for all
appliances. Do not use any service 90° elbows. Use only full port shutoff valves. When in doubt, oversize the piping.
Support the gas piping using hangers. Do not use the unit or its components to support the piping.
Only use pipe dope compatible with natural gas or LPG. Apply pipe dope sparingly only to the male threads of pipe joints
so gas flow is not blocked by pipe dope.
Gas piping should be run beside, behind, or beneath the boiler. Do not run gas piping in front of the boiler and do not
block the front covers from being opened.
WARNING : Do not check for gas leaks with an open flame. Use a gas detection device or bubble test. Failure to check
for leaks can cause severe personal injury, death or substantial property damage.
WARNING: Failure to apply pipe dope as described can result in severe personal injury, death or substantial
property damage.
WARNING : Use a two-wrench method of tightening gas piping near the unit and its gas piping connection.
Use one wrench to prevent the boiler gas line connection from turning and the second to tighten
the adjoining piping connection. Failure to support the boiler gas piping could damage gas line
components and/or the boiler.
External manual
gas shutoff valve,
must be within
6 ft of the boiler.
Sediment trap,
minimum of 3"
Cap
Tee
Gas flow direction
Union