Blodgett SC-GH SERIES - Manual (Page 8)

8
2.0 INSTALLATION
(Continued)
1.0 The Serial and Rating Plate on the unit indicates the type of gas your unit is equipped to
burn. DO NOT connect to any other gas type.
2.0 A ¾” NPT line is provided at rear for the connection. Each compartment is equipped
with an internal pressure regulator set at 3.5" W.C. manifold pressure for natural gas and
10" W.C. for propane gas. Use c” pipe tap on the burner manifold for checking
pressure.
An adequate gas supply is imperative. Undersized or low pressure lines will restrict the
volume of gas required for satisfactory performance. A steady supply pressure, between 6"
W.C. and 14" W.C. for natural gas and 12" W.C. and 14" W.C. for propane gas is
recommended. With all units operating simultaneously, the manifold pressure on all units
should not show any appreciable drop. Fluctuations of more than 25% on natural gas and
10% on propane gas will create problems, affecting burner operation. Contact your gas
company for correct supply line sizes.
Purge the supply line to clean out any dust, dirt or other foreign matter before connecting the
line to the unit. Use pipe joint compound suitable for use with Liquid Propane on all threaded
connections.
Test pipe connections thoroughly for gas leaks.
WARNING: Never use an open flame to check for gas leaks. Check
all connections for leaks using soapy water before use.
ELECTRICAL CONNECTION :
120 VAC-60 Hz - Single Phase
Units with this electrical rating are factory supplied with a three-wire cord and three-prong
plug which fits any standard 120V, three-prong grounded receptacle. A separate 15 amp
supply is needed for each unit.