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Bryant 581C Manual De Usuario

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149
PHYSICAL DATA — 581C
LEGEND
UNIT SIZE 581C
024
036
048
060
FURNACE SECTION
Rollout Switch Cutout Temp(F)†
195
195
195
195
Burner Orifice Diameter (in....drill size)**
Natural Gas—Std*
071/072
 .113...33
 .113...33
 .113...33
114/115
 .089...43
 .113...33
 .113...33
 .113...33
149/150
—
 .129...30
 .129...30
060N
—
 .113...33
 .113...33
 .113...33
090N
—
 .113...33
 .113...33
 .113...33
120N
—
—
 .129...30
 .129...30
 .089...43
 .102...38
 .102...38
 .102...38
—
 .102...38
 .102...38
 .102...38
—
—
 .116...32
 .116...32
Liquid Propane—Alt††
071/072
 .073...49
 .089...43
 .089...43
 .089...43
114/115
 .089...43
 .089...43
 .089...43
149/150
—
 .104...37
 .104...37
—
 .089...43
 .089...43
 .089...43
—
 .089...43
 .089...43
 .089...43
—
—
 .102...37
 .104...37
—
—
—
—
Thermostat Heat Anticipator Setting (amps) 
208/230/460/575v
First Stage
0.14
0.14
0.14
0.14
Second Stage
0.14
0.14
0.14
0.14
Gas Input (Btuh)
First Stage/Second Stage
072
 50,000/—
 ||  50,000/72,000
 ||  50,000/72,000
 ||  50,000/72,000
115
 ||  82,000/115,000
 ||  82,000/115,000
 ||  82,000/115,000
150
—
 ||  120,000/150,000
 ||  120,000/150,000
17111
—
***  —/72,000
***  —/72,000
 *** —/72,000
17211
—
***  —/115,000
***  —/115,000
 *** —/115,000
14911
—
—
***  —/150,000
 ***  —/150,000
060N***
—
†††  —/60,000
†††  —/60,000
†††  —/60,000
0960N***
—
†††  —/90,000
†††  —/90,000
†††  —/90,000
120N***
—
—
†††  —/120,000
†††  —/120,000
Efficiency (Steady State ) (%)
072
 81
 82.8
 82.8
 82.8
115
 80
 81
 81
150
—
 80.4
 80.4
071
—
 82
 82
 82
114
—
 80
 81
 81
149
—
—
 80
 80
060N
—
 80.2
 80.2
 80.2
090N
 81
 81
 81
 81
120N
—
—
 80.7
 80.7
Temperature Rise Range
072
 25-55
 25-25
 25-55
115
 25-65
 55-85
 35-65
 35-65
150
—
 50-80
 50-80
071
—
 25-55
 25-55
 25-55
114
—
 55-85
 35-65
 35-65
149
—
—
 50-80
 50-80
060N
—
 20-50
 20-50
 20-50
090N
—
 30-60
 30-60
 30-60
120N
—
—
 40-70
 40-70
Manifold Pressure (in.wg)
Natural Gas—Std
3.5
3.5
3.5
3.5
Liquid Propane—Alt††
3.5
3.5
3.5
3.5
Gas Valve Quanity
1
1
1
1
Gas Valve Pressure Range (Min-Max Allowable)
  psig
0.180-0.70
0.180-0.70
0.180-0.70
0.180-0.70
  in wg
5.0-13.0
5.0-13.0
5.0-13.0
5.0-13.0
Field Gas Connection Size (in. FPT)
1/2
1/2
1/2
1/2
HIGH-PRESSURE SWITCH (psig)
 
Standard CompressorInternal Relief 
450±50
Cutout
428
Reset (Auto.) 
320
LOSS-OF-CHARGE SWITCH (LiquidLIne) (psig)
Cutout
7±3
22±5
Reset(Auto.)
FREEZE PROTECTION THERMOSTAT 
Opens(F)
30±5
45±5
Closes(F)
OUTDOOR-AIR INLET SCREENS
Cleanable Screen quantity and size varies with option selected.
RETURN-AIRFILTERS
Throw away
  Quantity...Size (in.)
2...16x25x2
Bhp — Brake Horsepower
IIThree-phase standard models have heating inputs as shown. Single-phase 
standard models have one-stage heating with heating input values as follows:
048-060, 036 — 72,000 Btuh
048-060, 036 — 115,000 Btuh
048-060 — 150,000 Btuh (shown in heating capacity tables)
***California compliant three-phase models.
†††California SCAQMD compliant low NO
x
 models have combustion products 
that are controlled to 40 nanograms per joule or less.
NOTE: Capacities for stainless steel heat exchanger units (S/R/T) are the 
same as standard units (D/E/F).
*Single phase/three phase. Stainless steel models use the same orifices as equiva-
lent standard heat exchangers.
†Indicates automatic reset.
**60,000 and <72,000 Btuh heat input units have 2 burners. 90,000 and 120,000
Btuh heat input units have 3 burners. 115,000 Btuh heat input units and 150,000
Btuh Heat input units have 3 burners.
†† An LP kit is available as an accessory. If an LP kit is used with Low NOx units, the
Low NOx baffle must be removed and the units will no longer be classified as Low
NOx units.