
FLAME
SENSOR
BURNER (3)
MANIFOLD
I
I
ORIFICE (3)
TWO-STAGE90,000 BTUHTO 130,000 BTUH UNITS
FLAME
SENSOR
ORIFICE (3)
BURNER iNSERT (3)
_ SPARKER
"__- - GASVALVE
.... .\
\ r _. i
ORIENTATION
OF BURNER
INSERT
(3)
BURNER (3)
TWO-STAGE 60,000 BTUH UNITS
A08565
PiPE PLUG
ORiFiCE (2)
ORIENTATION
OF BURNER
INSERT
_ CLOSED END
I
//BURNER RACK
TWO-STAGE 40,000 BTUH UNITS
Fig. 7 - Two-Stage Orifice Installation
A08509
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