sunstar corcho T (Convertido)-1 13/3/08 10:27 P gina 7
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INSTALLATION TO GAS SUPPLY
1. The gas supply must comply with local codes, or in
their absence, the installation must be in accordance
with the American National Standard (National Fuel
Gas Code) NFPA 54, also known as ANSI Z223.1-
latest edition, available from the ANSI Inc., 1434
Broadway, New York, New York 10018, or the National
Fire Protection Association, Batterymarch Park,
Quincy, Massachusetts 02269.
2.
WARNING:
When using LP gas, this heater
requires an external regulator (not supplied) located
between the heater and LP Supply Tank. This regulator
must be supplied by the installer to reduce incoming
LP Gas pressure to a maximum of 14 inches of water
column. Under no circumstances should this heater
ever be hooked directly to an LP supply tank.
I
MPORTANT:
The Pressure Regulator must be held
with a wrench when connecting gas piping and/or
fittings to the Pressure Regulator.
3. Use only new, black iron or rust resistant steel pipe.
Copper tubing may be acceptable in certain areas.
CHECK LOCAL CODES TO DETERMINE
ACCE PTAB LE TYPE S OF GAS PI PI NG.
4. The gas supply line shall be sized and installed to
provide a sufficient supply of gas to meet the minimum
demand of the heater without undue loss of pressure.
Typical Installation Supply Line
Up to 20,000 Btu/hr 3/8” or greater
Up to 30,000 Btu/hr 1/2” or greater
5. The sealant used on the threaded pipe joints of the
gas pipe must be the specific type resistant to the
action of Liquid Petroleum Gas. Apply sealant lightly
to male threads to ensure excess sealant does not
enter lines. Any excess sealant could be forced into
the pipe and result in clogged gas valves.
6. The supply system must include a manual shut-off
valve, a union in the line, and a plugged 1/8" NPT
tap. The tap should be accessible for test gauge
connections upstream of the gas supply connection
to heater.
7. Include a drip leg (trap) in the supply line. The
purpose of the drip leg is to prevent moisture and
contaminants in the gas supply from entering the
heater controls. The drip leg should be readily
accessible to permit cleaning or emptying. A drip
leg should not be located where the condensate is
likely to freeze. Failure to use a drip leg can result in
operational difficulties in the heater.
GAS SUPPLY
CHECK
A union must be provided directly at the gas inlet to the
heater. A manual gas valve must be provided upstream
of the union. This will allow you to shut off the gas supply
to the heater if it is necessary to remove it for service
purposes.
The appliance and its appliance main shutoff valve must
be disconnected from the gas supply piping system
during any pressure testing of that system at test
pressures in excess of 1/2 psig. (3.45kPa).
The appliance must be isolated from the gas supply
piping system by closing its equipment shutoff valve
during any pressure testing of the gas supply piping
system at test pressures equal to or less than _ psig.
(3.45kPa).
The connectors must be checked and cleaned before
assembling and then wrenched up tight for a gas tight
connection. Apply a soap and water solution to all joints
and watch for bubbles to check for gas leaks.
NEVER
USE ANY OPEN FLAME TO CHECK FOR GAS LEAKS
.
SATISFACTORY
Proper Burning
UNSATISFACTORY
Figure 3
HEATER MAINTENANCE — PERIODIC VISUAL
CHECK
The burner must glow evenly over the entire surface when
operating correctly. The pilot flame must burn with a clear
blue flame. See Figure 3.
(30,000 Btu/hr input model
shown)
