Warning, Service and maintenance procedures – Bryant 2-stage Deluxe Induced-Combustion 4-way Multipurpose 120 User Manual
Page 45
45
Table 16 -- Orifice Size and Manifold Pressure for Gas Input Rate (cont.)
(Tabulated Data Based on 21,000 Btuh High--Heat/14,500 Btuh for Low--Heat Per Burner, Derated 4% for Each 1000 Ft Above
Sea level)
ALTITUDE RANGE
(FT)
AVG. GAS
HEAT VALUE
AT ALTITUDE
(BTUH/CU FT)
SPECIFIC GRAVITY OF NATURAL GAS
0.58
0.60
0.62
0.64
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
U.S.A.
Only
6001 to
7000
675
44
3.5/1.7
43
3.2/1.5
43
3.3/1.6
43
3.4/1.6
700
44
3.3/1.6
44
3.4/1.6
44
3.5/1.7
43
3.2/1.5
725
45
3.7/1.8
45
3.8/1.8
44
3.3/1.6
44
3.4/1.6
750
46
3.6/1.7
46
3.8/1.8
45
3.7/1.8
45
3.8/1.8
775
46
3.4/1.6
46
3.5/1.7
46
3.6/1.7
46
3.8/1.8
800
47
3.6/1.7
47
3.8/1.8
46
3.4/1.6
46
3.5/1.7
825
47
3.4/1.6
47
3.5/1.7
47
3.6/1.7
47
3.8/1.8
850
48
3.7/1.7
48
3.8/1.8
47
3.4/1.6
47
3.5/1.7
ALTITUDE RANGE
(FT)
AVG. GAS
HEAT VALUE
AT ALTITUDE )
SPECIFIC GRAVITY OF NATURAL GAS
0.58
0.60
0.62
0.64
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
U.S.A.
Only
7001 to
8000
650
44
3.3/1.6
44
3.4/1.6
44
3.5/1.7
43
3.2/1.5
675
45
3.7/1.8
45
3.8/1.8
44
3.3/1.6
44
3.4/1.6
700
46
3.6/1.7
46
3.7/1.8
46
3.8/1.8
45
3.8/1.8
725
47
3.8/1.8
46
3.5/1.7
46
3.6/1.7
46
3.7/1.8
750
47
3.5/1.7
47
3.7/1.8
47
3.8/1.8
46
3.5/1.6
775
48
3.8/1.8
47
3.4/1.6
47
3.6/1.7
47
3.7/1.7
800
48
3.6/1.7
48
3.7/1.8
48
3.8/1.8
47
3.4/1.6
825
48
3.3/1.6
48
3.5/1.6
48
3.6/1.7
48
3.7/1.8
ALTITUDE RANGE
(FT)
SPECIFIC GRAVITY OF NATURAL GAS
0.58
0.60
0.62
0.64
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
U.S.A.
Only
8001 to
9000
625
45
3.7/1.8
45
3.8/1.8
44
3.3/1.6
44
3.4/1.6
650
46
3.6/1.7
46
3.7/1.8
46
3.8/1.8
45
3.8/1.8
675
47
3.8/1.8
46
3.4/1.6
46
3.5/1.7
46
3.7/1.7
700
47
3.5/1.7
47
3.6/1.7
47
3.7/1.8
46
3.4/1.6
725
48
3.7/1.8
48
3.8/1.8
47
3.5/1.7
47
3.6/1.7
750
48
3.5/1.7
48
3.6/1.7
48
3.7/1.8
48
3.8/1.8
775
49
3.8/1.8
48
3.4/1.6
48
3.5/1.7
48
3.6/1.7
ALTITUDE RANGE
(FT)
AVG GAS
HEAT VALUE
AT ALTITUDE
(BTU/CU FT)
SPECIFIC GRAVITY OF NATURAL GAS
0.58
0.60
0.62
0.64
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
U.S.A.
Only
9001 to
10,000
600
46
3.6/1.7
46
3.7/1.8
46
3.8/1.8
45
3.7/1.8
625
47
3.7/1.8
47
3.8/1.8
46
3.5/1.7
46
3.6/1.7
650
47
3.4/1.6
47
3.6/1.7
47
3.7/1.8
47
3.8/1.8
675
48
3.6/1.7
48
3.8/1.8
47
3.4/1.6
47
3.5/1.7
700
48
3.4/1.6
48
3.5/1.7
48
3.6/1.7
48
3.7/1.8
725
49
3.7/1.8
49
3.8/1.8
48
3.4/1.6
48
3.5/1.7
* Orifice numbers 43 are factory installed
SERVICE AND MAINTENANCE
PROCEDURES
FIRE, PERSONAL INJURY AND UNIT DAMAGE
HAZARD
Failure to follow this warning could result in personal injury,
death and/or property damage.
The ability to properly perform maintenance on this
equipment requires certain knowledge, mechanical skills,
tools, and equipment. If you do not possess these, do not
attempt to perform any maintenance on this equipment other
than those procedures recommended in the User’s Manual.
!
WARNING
ELECTRICAL SHOCK, FIRE OR EXPLOSION
HAZARD
Failure to follow this warning could result in personal injury
or death, or property damage.
Before servicing, disconnect all electrical power to furnace.
Verify proper operation after servicing.
!
WARNING
312A