John Wood Commercial Atmospheric Vent - AJWSM - Manual (Page 21)

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TABLE 5
MANIFOLD GAS PRESSURE IN INCHES
OF WATER COLUMN (ALL MODELS*)
TYPE OF GAS
NATURAL PROPANE
3.5 10.0
Gas pressure specified in Table 5, refer to flow pressure taken at
pressure tap of automatic gas valve while heater is operating.
TABLE 6
APPROXIMATE TIME REQUIRED TO CONSUME
1 CU. FT. OF GAS AT FULL CAPACITY
INPUT
RATE
(BTUH)
TYPE
OF
GAS
BTUH
PER
CU. FT.
TIME REQ’D
TO CONSUME
1 CU. FT.
OF GAS
120,000
NATURAL
PROPANE
1050
2500
31. 5 SEC.
75.0 SEC.
154,000
NATURAL
PROPANE
1050
2500
24. 5 SEC.
58.4 SEC.
199,000
NATURAL
PROPANE
1050
2500
19.0 SEC.
47.4 SEC.
251,000
NATURAL
PROPANE
1050
2500
15.06 SEC.
35.1 SEC.
275,000
NATURAL
PROPANE
1050
2500
13.75 SEC.
32.2 SEC.
305,000
NATURAL
PROPANE
1050
2500
12.4 SEC.
29.5 SEC.
365,000
NATURAL
PROPANE
1050
2500
10.4 SEC.
24.7 SEC.
390,000
NATURAL
PROPANE
1050
2500
9.5 SEC.
22.6 SEC.
Figures shown are valid for 0-2000 ft.(0-610m) installations. See
“HIGH ALTITUDE INSTALLATIONS” for deration requirements
over 2000 ft.(610m).
TABLE 7
PILOT BURNER INFORMATION
TYPE OF PILOT BURNER RATED
MODEL GAS PART NUMBER ORIFICE
(WITH ORIFICE) SIZE
ALL NATURAL 9004541215 0.018
MODELS PROPANE 9004542215 0.014
CREATED BY NEEVIA DOCUSTAMP TRIAL VERSION (WWW.NEEVIA.COM) CREATED BY NEEVIA DOCUSTAMP TRIAL VERSION (WWW.NEEVIA.COM)