Midco Economite RE4400B / RE4400BA - Manual (Page 9)

Part 1 Installation
9
VIII Initial Start-
up /Adjustment
Continued
RE4850BA
RE4700BA
2.8
2.5
4.1
3.4
2.8
2.3
3.4
0.3
0.422
0.422
0.358
0.358
0.358
0.358
0.290
0.422
3.5
3.0
3.3
3.2
2.7
2.9
2.3
0.4
0.688
0.688
0.563
0.500
0.500
0.422
0.422
0.688
700
650
600
550
500
450
400 *
233
RE4400BA
Table 3: Capacity and Preliminary Gas Settings
1. Adjust the main regulator to vary the manifold gas pressure and burner input within the range shown.
Do not exceed pressure as listed in Table 3, under any circumstances. Use combustion readings (CO
or O2) and a flow meter to determine exact inputs.
* Orifice Size and approximate manifold gas pressure setting: as shipped. Air shutters are set at full
open (Note: RE4400B and BA full open is at the stop on mark 3.2).
NOTE: For LP Conversion kit contact the factory
DATA FOR TABLES IS APPROXIMATE AND BASED ON “0" OVERFIRE PRESSURE AT SEA LEVEL
2.4
2.5
2.7
2.8
2.4
3.9
3.3
2.7
2.2
3.3
0.15
0.688
0.563
0.500
0.422
0.422
0.358
0.358
0.358
0.358
0.290
0.688
3.5
3.1
2.7
2.8
2.4
2.8
3.15
2.4
2.6
4.3
0.4
No Orifice
No Orifice
No Orifice
0.688
0.688
0.563
0.500
0.500
0.422
0.358
No Orifice
Input
MBTU/HR
1
Orifice
Size
(Inches)
Natural Gas
Natural Gas / Propane Gas Orifice Size and Pressure Settings
Manifold
Pressure
("W.C)
Orifice
Size
(Inches)
850
800
750
700
650
600
550
500
450 *
400
280
Propane Gas
Manifold
Pressure
("W.C)
3.5
4.65
4.15
4.75
2.8
0.45
0.358
0.290
0.261
0.219
0.219
0.358
4.7
3.6
2.7
3.3
3.5
0.6
No Orifice
No Orifice
No Orifice
0.358
0.290
No Orifice
400
350
300
250 *
200
133
-
-
-
I
I
H
G
G
F
J
-
I
H
G
F
F
J
J
J
J
B
I
J
B
C
E
E
J
-
-
-
J
B
-
Letter
Stamp
Letter
Stamp
I
I
H
G
G
F
F
I
F
F
J
J
J
J
B
F
J
B
C
E
E
J
-
-
-
J
B
-
RE4400B
2.8
3.6
3.1
3.2
2.1
0.3
0.358
0.290
0.261
0.219
0.219
0.358
4.3
3.3
2.4
2.9
2.8
0.6
No Orifice
No Orifice
No Orifice
0.358
0.290
No Orifice
400
350
300
250 *
200
132
Part 1
Installation
Continued