Fisher & Paykel OR30SDPWGX manual Orifices Table

2

ORIFICES TABLE

		NOMINAL	REDUCED	LP/PROPANE	NATURAL GAS
		POWER	POWER	11” W.C.P.	4” W.C.P.
BURNERS		BTU/hr	BTU/hr	Ø orifice	Ø orifice
				[1/100 mm]	[1/100 mm]
Semirapid (SR)		8000	1500	85	139
Dual (D)	Inner crown	2100	1000	42 (*)	70 (*)
	Inner & outer crown	17000	6500	115 (#)	200 (#)

(*) inner crown (“J2” in figure 2.12)

(#) outer crown (“J3” in figure 2.12)

OPERATIONS TO BE PERFORMED WHEN SUBSTITUTING THE ORIFICES

•Remove the pan supports, the burner caps and the flame spreaders.

•Dual burner only (fig. 2.12): Unscrew the no.3 fixing screws “A” and remove the inner crown flame spreader “B”; then unscrew the no.2 fixing screws “C” and remove the cover plate “D”.

•Using a wrench substitute the nozzle orifices “J1”, “J2” and “J3” (figs. 2.11, 2.12) with those most suitable for the kind of gas for which it is to be used.

•Dual burner only (fig. 2.12): Refit the cover plate “D” and screw the no.2 fixing screws “C”; then refit the inner crown flame spreader “B” and screw the no.3 fixing screws “A”

•Refit the flame spreaders, the burner caps and the pan supports.

The burner are conceived in such a way so as not to require the regulation of the primary air.

SEMI-RAPID BURNER

J1

Fig. 2.11

18

DUAL BURNER
A		A
A
C	C	B
	SECOND ORIFICE
	DEUXIEME ORIFICE
		D
		J3
		J2
		Fig. 2.12