88
PHYSICAL DATA — 581B036-072 (cont)
LEGEND
*Single phase/three phase.
†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. In order to convert a Low NOx unit to
LP gas, the baffle must be removed. Low NOx units converted to LP gas are
no longer California SCAQMD compliant.
||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.
UNIT SIZE 581B
036
048
060
072
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
.113...33
114/115
.113...33
.113...33
.113...33
.113...33
149/150
—
.129...30
.129...30
.129...30
060N
.102...38
.102...38
.102...38
—
090N
.102...38
.102...38
.102...38
—
120N
—
.116...32
.116...32
—
Liquid Propane — Alt††
071/072
.089...43
.089...43
.089...43
.089...43
114115
.089...43
.089...43
.089...43
.089...43
149/150
—
.102...38
.102...38
.102...38
Thermostat Heat Anticipator Setting (amps)
208/230/460 v
First Stage
.14
.14
.14
.14
Second Stage
.14
.14
.14
.14
Gas Input (Btuh)
First Stage/Second Stage (3-phase units)
072
50,000/ 72,000
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
82,000/115,000
150
—
120,000/150,000
120,000/150,000
120,000/150,000
071II
—/ 72,000
—/ 72,000
—/ 72,000
—
114II
—/115,000
—/115,000
—/115,000
—
149II
—
—/150,000
—/150,000
—
060N***
—/ 60,000
—/ 60,000
—/ 60,000
—
090N***
—/ 90,000
—/ 90,000
—/ 90,000
—
120N***
—
—/120,000
—/120,000
—
Efficiency (Steady State) (%)
072
82
82
82
82
115
80
81
81
81
150
—
80
80
80
071
82
82
82
—
114
80
81
81
—
149
—
80
80
—
060N
80
80
80
—
090N
80
80
80
—
120N
—
80
80
—
Temperature Rise Range
072
25-55
25-55
25-55
25-55
115
55-85
35-65
35-65
35-65
150
—
50-80
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 Quantity
1
1
1
1
Gas Valve Pressure Range (Min-Max Allowable)
Psig
0.180-0.470
0.180-0.470
0.180-0.470
0.180-0.470
in. wg
5.0-13.0
5.0-13.0
5.0-13.0
5.0-13.0
Maximum Static Pressure (in. wg)
1.0
1.0
1.0
1.0
Field Gas Connection Size (in. FPT)
1
/
2
1
/
2
1
/
2
1
/
2
HIGH-PRESSURE SWITCH (psig)
Standard Compressor Internal Relief
450 ± 50
Cutout
428
Reset (Auto.)
320
LOSS-OF-CHARGE SWITCH/LOW-PRESSURE
SWITCH (Liquid LIne) (psig)
Cutout
7 ± 3
Reset (Auto.)
22 ± 5
FREEZE PROTECTION THERMOSTAT
Opens (F)
30 ± 5
Closes (F)
45 ± 5
OUTDOOR-AIR INLET SCREENS
Cleanable
Quantity...Size (in.)
Varies By Option Selected
RETURN-AIR FILTERS
Throwaway
Quantity...Size (in.)
2...16 x 25 x 2
4...16 x 16 x 2
Bhp —
Brake Horsepower
581
B0
36
-15
0
Summary of Contents for 581A
Page 30: ...30 BASE UNIT DIMENSIONS 580F036 072 a48 8195 580F036 151 ...
Page 31: ...31 BASE UNIT DIMENSIONS 580F073 a48 8196 580F036 151 ...
Page 32: ...32 BASE UNIT DIMENSIONS 580F090 120 150 a48 8197 580F036 151 ...
Page 33: ...33 BASE UNIT DIMENSIONS 580F091 103 121 151 a48 8198 580F036 151 ...
Page 91: ...91 BASE UNIT DIMENSIONS 581B036 072 a48 8199 581B036 150 ...
Page 93: ...93 ACCESSORY DIMENSIONS 581B036 072 a48 8201 581B036 150 ...
Page 94: ...94 ACCESSORY DIMENSIONS 581B090 150 a48 8202 581B036 150 ...
Page 150: ...150 BASE UNIT DIMENSIONS 581C024 060 581C024 060 ...
Page 198: ...198 TYPICAL WIRING SCHEMATICS 579F 579F240 208 230 V Shown a48 7929 ...
Page 205: ...205 BASE UNIT DIMENSIONS 580F180 210 a48 8203 580F180 300 ...
Page 206: ...206 BASE UNIT DIMENSIONS 580F240 a48 8204 ...
Page 207: ...207 BASE UNIT DIMENSIONS 580F300 a48 8205 580F180 300 ...
Page 209: ...209 ACCESSORY DIMENSIONS 580F300 Vertical Roof Curbs 580F300 a48 7456 580F180 300 ...
Page 233: ...233 BASE UNIT DIMENSIONS 581A210 300 a48 8206 581A155 180 ...
Page 237: ...237 ACCESSORY DIMENSIONS 581A210 300 a48 8234 581A155 180 ...
Page 280: ...280 TYPICAL PIPING AND WIRING 581A 581A155 Shown LEGEND NEC National Electrical Code b48 1258 ...
Page 297: ...297 ...