Installation
12
Gas Connection
PRESSURE REGULATION AND TESTING
Zephaire-G ovens are rated at 60,000 BTU/Hr.
(17.6kW)(63MJ)persection.Eachovenhas
been adjusted at the factory to operate with the
type of gas specified on the rating plate.
Inlet Pressure
Natural Propane
Min Max Min Max
W.C. 7.0 10.5 11.0 13.0
kPa 1.43 2.61 2.74 3.23
Manifold Pressure
Natural Propane
W.C. 3.5 10.0
kPa .87 2.49
D
InletPressure --- thepressureofthegasbefore
it reaches the oven.
D
Manifold Pressure --- the pressure of the gas
as it enters the main burner(s).
D
Min --- the minimum pressure recommended to
operate the oven.
D
Max --- the maximum pressure at which the
manufacturer warrants the oven’s operation.
Each oven is supplied with a regulator to maintain
the propergas pressure. The regulator isessen-
tial to the proper operation of the oven and
shouldnotberemoved.Itispresettoprovidethe
oven with 3. 5” W.C. (0.87 kPa) for natural gas and
10.5” W.C. (2.50 kPa) for Propaneat t he manifold.
DO NOT INSTALL AN ADDITIONAL REGULATOR
WHERE THE OVEN CONNECTS TO THE GAS
SUPPLY UNLESS THE INLET PRESSURE IS
ABOVE MAXIMUM.
Prior to connecting t he oven, gas lines should be
thoroughly purged of all metal filings, shavings,
pipedope, andother debris.After connection, the
ovenshouldbe checked for correct gaspressure.
The oven and its individual shutoff valve must be
disconnected from the gas supply piping system
during any pressure testing of that system a t test
pressuresinexcessof1/2psig(3.45kPa).
The oven 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 or less
than 1/2 psig (3.45kPa).
Gas Connection 2.5” (64 mm)
Gas Connection 3.75” (86 mm)
Figure 10
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