229
PHYSICAL DATA — 581A210-300
LEGEND
UNIT 581A
210
240
300
NOMINAL CAPACITY (tons)
18
20
25
OPERATING WEIGHT (lb)
Al/Al
2224
2272
2526
COMPRESSOR
Quantity
3
3
2
Number of Refrigerant Circuits
3
3
2
Oil (ounces) Ckt A...Ckt B...Ckt C
68...68...90
90...90...90
110...110...NA
REFRIGERANT TYPE
Expansion Device
TXV
TXV
TXV
Operating Charge (lb)
Circuit A
13.1
13.8
21.8
Circuit B
12.7
13.9
20.3
Circuit C
15.2
15.5
NA
CONDENSER FAN
Nominal Cfm (Total, all fans)
14,000
14,000
21,000
Quantity...Diameter (in.)
4...22
4...22
6...22
Motor Hp...Rpm
1
/
4
...1100
1
/
4
...1100
1
/
4
...1100
Watts Input (Total)
1400
1400
2100
CONDENSER COIL
Rows...Fins/in.
2...17
2...17
2...17
Total Face Area (sq ft)
57.78
57.78
66.67
EVAPORATOR FAN
Quantity...Size
2...15x11
2...15x11
2...15x11
Type Drive
Belt
Belt
Belt
Nominal Cfm
7000
8000
10,000
Motor Bearing Type
Ball
Ball
Ball
Maximum Allowable Fan Rpm
1400
1400
1400
EVAPORATOR COIL
Rows...Fins/in.
3...15
4...15
4...15
Total Face Area (sq ft)
23.33
23.33
27.22
FURNACE SECTION
Rollout Switch Cutout Temp (F)
225
225
225
Burner Orifice Diameter (in. ...drill size)
0.136...29
0.136...29
0.136...29
Gas
Natural
Natural
Natural
Thermostat Heat Anticipator Setting
Stage 1 (amps)
0.98
0.98
0.98
Stage 2 (amps)
0.44
0.44
0.44
Gas Input (Btuh) HIGH HEAT
Stage 1
317,000
317,000
317,000
Stage 2
400,000
400,000
400,000
Efficiency (Steady State) %
Vertical
82
82
82
Temperature Rise Range
25-55
25-55
25-55
Gas Input (Btuh) MEDIUM HEAT
Stage 1
281,000
281,000
281,000
Stage 2
365,000
365,000
365,000
Efficiency (Steady State) %
Vertical
81
81
81
Temperature Rise Range
25-55
25-55
25-55
Gas Input (Btuh) LOW HEAT
Stage 1
199,000
199,000
199,000
Stage 2
250,000
250,000
250,000
Efficiency (Steady State) %
Vertical
82
82
82
Temperature Rise Range (F)
15-45
15-45
15-45
Manifold Pressure
Natural Gas (in. wg)
Vertical
3.00
3.00
3.00
Natural Gas (in. wg)
Horizontal
2.95
2.95
2.95
Gas Valve Quantity
1
1
1
Gas Valve Pressure Range
(in. wg)
5.5-13.0
5.5-13.0
5.5-13.0
Min-Max Allowable
(psig)
.235-.469
.235-.469
.235-.469
Field Gas Connection Size (in. FPT)
3
/
4
3
/
4
3
/
4
HIGH-PRESSURE SWITCH (psig)
Cutout
426
426
426
Reset (Auto)
320
320
320
OUTDOOR-AIR INLET SCREENS
Quantity...Size (in.)
3...20x25
3...20x25
3...20x25
RETURN-AIR FILTERS
Quantity...Size (in.)
9...16x25
9...16x25
9...18x24
TXV —
Thermostatic Expansion Valve
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 ...