Reznor R8HE Unit Installation Manual - Manual (Page 15)

15
GAS SUPPLY & PIPING
WARNING:
FIRE OR EXPLOSION HAZARD
• Failure to follow safety warnings exactly could
result in serious injury or property damage.
• Installation and service must be performed
by a qualified installer, service agency or the
gas supplier.
• Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call the
fire department.
AVERTISSEMENT:
RISQUE D’INCENDIE OU D’ EXPLOSION
• Le non-respect des avertissements de sécurité
pourrait entraîner des blessures graves, la
mort ou des dommages matériels.
• L’installation et l’entretien doivent être
effectués par un installateur qualifié, un
organisme de service ou le fournisseur de
gazstaller, service agency or the gas supplier.
• Ne pas entreposer ni utiliser de l’essence ni
d’autres vapeurs ou liquides inflammables
dans le voisinage de cet appareil, ni de tout
autre appareil.
QUE FAIRE S’IL Y A UNE ODEUR DE GAZ
• Ne pas tenter d’allumer aucun appareil.
• Ne toucher à aucun interrupteur électrique;
n’utiliser aucun téléphone dans le bâtiment.
• Évacuer l’immeuble immédiatement.
• Appeler immédiatement le fournisseur de
gaz en employant le téléphone d’un voisin.
Respecter à la lettre les instructions du
fournisseur de gaz.
• Si personne ne répond, appeler le service des
incendies.
• All gas piping must be installed in compliance with
local codes and utility regulations. In the absence
of local codes the gas line installation must comply
with the latest edition of the National Fuel Gas Code
ANSI Z223.1 or CAN/CGA B149 Installation Codes.
• Some local codes require the installation of a
manual main shut-off valve and ground joint union
external to the unit. The shut-off valve should be
readily accessible for service and/or emergency
use. Consult the local utility or gas supplier for
additional requirements regarding placement of
the manual main gas shut-off. See
Figure 6 (page
16) .
• The manifold pressure must be set to the appropriate
value for your installation. To measure and adjust
the manifold pressure see
page 20 .
• Gas piping must never run in or through air ducts,
chimneys, gas vents, or elevator shafts.
• Compounds used to seal joints on gas piping must
be resistant to the actions of LP propane gas.
• The main gas shutoff valve and main power
disconnect to the unit must be properly labeled
by the installer in case emergency shutdown is
required.
• An 1/8 inch NPT plugged tap can be installed in the
gas line immediately upstream of the gas supply
connection to the unit for use when measuring
the gas supply pressure when not using the inlet
pressure tap supplied on the factory installed gas
valve. The plug should be readily accessible for
service use.
• A drip leg should be installed in the vertical pipe
run to the unit. See Figure 6 .
This unit only has right side gas entry. When connecting
the gas, provide clearance between the gas supply line
and the entry hole in the unit’s casing to avoid unwanted
noise and/or damage to the unit. A typical gas service
hookup is shown in
Figure 6 .
Table 14 (page 33) lists gas pipe capacities for standard
pipe sizes as a function of length in typical applications
based on nominal pressure drop in the line.
Leak Check
WARNING:
FIRE OR EXPLOSION HAZARD
Never test for gas leaks with an open flame. Check
all connections using a commercially available
soap solution. A fire or explosion may result
causing property damage, personal injury or
loss of life. Failure to follow the safety warnings
exactly could result in serious injury, death or
property damage.
After the gas piping to the unit is complete, all connections
must be tested for gas leaks. This includes pipe connections
at the main gas valve, emergency shutoff valve and
other gas connectors. A soap and water solution can be