Adjustments - Carrier 58DFA Installation, Start-Up, And Operating Instructions Manual

Table 6—Model 58DFA Orifice Size and Manifold Pressure for Correct Input Rate
(Tabulated Data Based on Altitude Up to 2000 Ft and 22,000 Btuh Per Burner)
GAS HEAT VALUE 0.56
(BTU/CU FT)
Orf Mnfld
No. Press.
41 3.2
860 42 3.6
— —
42 3.4
875 — —
— —
42 3.3
890 — —
— —
42 3.2
905 — —
— —
43 3.8
920
— —
43 3.7
935
— —
43 3.6
950
— —
43 3.4
965
— —
44 3.8
980
43 3.3
44 3.7
995
43 3.2
44 3.6
1010
— —
44 3.5
1025
— —
44 3.4
1040
— —
44 3.3
1055
— —
44 3.2
1070
— —
45 3.8
1085
— —
45 3.7
1100
— —
3.8-in. wc for natural gas. Make any major adjust-
ments by changing main burner orifices.
(3.) When correct input is obtained, replace regulator seal
cap. Main burner flame should be clear blue, almost
transparent. (See Fig. 13.)
d. High altitudes—In the U.S.A., gas input on rating plate is
for altitudes up to 2000 ft. Ratings for altitudes over 2000
ft must be 4 percent less for each 1000 ft above sea level.
To obtain the adjusted altitude rating, adjust the manifold
pressure, item c., and replace the main burner orifice as
needed. Refer to NFGC Appendix F, Table F-4 for proper
orifice sizing at high altitudes.
e. Canadian installations only—The Canadian ratings are
approved for altitudes up to 2000 ft for natural and propane
gases. High-altitude ratings are from 2001 ft to 4500 ft
above sea level. High-altitude input ratings include a 10
percent derate as required by Canadian standards. (See
Table 8.)
2. Set temperature rise.
Do not exceed the temperature rise range specified on the unit
rating plate. Determine the air temperature rise as follows:
SPECIFIC GRAVITY OF NATURAL GAS
0.58 0.60
Orf Mnfld Orf Mnfld Orf
No. Press. No. Press. No.
41 3.3 41 3.4 41
42 3.7 42 3.8 40
— — 40 3.2 —
41 3.2 41 3.3 41
42 3.6 42 3.7 42
— — — — 40
42 3.4 41 3.2 41
— — 42 3.6 42
— — — — —
42 3.3 42 3.4 41
— — — — 42
— — — — —
42 3.2 42 3.3 42
— — — — —
43 3.8 42 3.2 42
— — — — —
43 3.7 43 3.8 42
— — — — —
43 3.6 43 3.7 43
— — — — —
42 3.5 43 3.6 43
— — — — —
44 3.8 43 3.5 43
43 3.4 — — —
44 3.7 44 3.8 43
43 3.3 43 3.4 —
44 3.6 44 3.7 43
43 3.2 43 3.3 —
44 3.5 44 3.6 44
— — 43 3.2 43
44 3.4 44 3.5 44
— — — — 43
44 3.3 44 3.4 44
— — — — —
44 3.2 44 3.3 44
— — — — —
45 3.8 44 3.2 44
— 3.4 — — —
0.62 0.64 0.66
Mnfld Orf Mnfld Orf Mnfld
Press. No. Press. No. Press.
3.5 41 3.7 41
3.3 39 3.2 39
— 40 3.4 40
3.4 41 3.5 41
3.8 40 3.3 39
3.2 — — 40
3.3 41 3.4 41
3.7 42 3.8 40
— — — —
3.2 41 3.3 41
3.6 42 3.7 42
— — — —
3.4 41 3.2 41
— 42 3.5 42
3.3 42 3.4 41
— — — 42
3.2 42 3.3 42
— — — —
3.8 42 3.2 42
— — — —
3.7 43 3.8 42
— — — —
3.6 43 3.7 43
— — — —
3.5 43 3.6 43
— — — —
3.4 43 3.5 43
— — — —
3.7 43 3.4 43
3.3 — — —
3.6 44 3.8 43
3.2 43 3.3 —
3.5 44 3.7 44
— 43 3.2 43
3.4 44 3.6 44
— — — 43
3.4 44 3.5 44
— — — —
REGULATOR
ADJUSTMENT
SEAL CAP
INLET
PRESSURE
TAP
THERMOCOUPLE
CONNECTION
Fig. 12—Redundant Automatic Gas Valve
11
0.68 0.70
Orf Mnfld Orf Mnfld
No. Press. No. Press.
3.8 39 3.4 38 3.2
3.3 40 3.6 39 3.5
3.5 — — 40 3.7
3.6 41 3.8 39 3.3
3.2 39 3.3 40 3.6
3.4 40 3.5 — —
3.5 41 3.6 41 3.7
3.2 40 3.3 39 3.2
— — — 40 3.4
3.4 41 3.5 41 3.6
3.8 40 3.2 40 3.3
— — — — —
3.3 41 3.4 41 3.5
3.7 42 3.8 40 3.2
3.2 41 3.3 41 3.4
3.5 42 3.7 42 3.8
3.4 41 3.2 41 3.3
— 42 3.5 42 3.6
3.3 42 3.4 41 3.2
— — — 42 3.5
3.2 42 3.3 42 3.4
— — — — —
3.8 42 3.2 42 3.3
— — — — —
3.7 43 3.8 42 3.2
— — — — —
3.6 43 3.7 43 3.8
— — — — —
3.5 43 3.6 43 3.7
— — — — —
3.4 43 3.5 43 3.6
— — — — —
3.8 43 3.4 43 3.5
3.3 — — — —
3.7 44 3.8 43 3.4
2.3 43 3.3 — —
3.6 44 3.7 44 3.8
— 43 3.2 43 3.3
MANUAL
ON/OFF
KNOB
0.72
Orf Mnfld
No. Press.
38 3.3
39 3.6
40 3.8
38 3.2
39 3.4
40 3.7
41 3.8
39 3.3
40 3.5
41 3.7
39 3.2
40 3.4
41 3.6
40 3.3
41 3.5
40 3.2
41 3.4
42 3.7
41 3.3
42 3.6
41 3.2
42 3.5
42 3.4
— —
42 3.3
— —
43 3.2
— —
43 3.8
— —
43 3.7
— —
43 3.6
— —
43 3.5
— —
43 3.4
— —
MANIFOLD
PRESSURE
TAP
PILOT TUBE
CONNECTION
PILOT
ADJUSTMENT
SCREW
A89171