Carrier SINGLE PACKAGE ROOFTOP UNITS 48PG20-28 Installation And Service Instructions Manual page 6

UNIT 48PG
VOLTAGE
NOMINAL CAPACITY (Tons)
OPERATING WEIGHT (lb)
48 Series (Low Heat) Al/Al*
COMPRESSOR
Quantity
Number of Refrigerant Circuits
Oil (ounces) Comp A1, A2, B1
REFRIGERANT TYPE
Expansion Device
Change Type
Operating Charge (lb)
Circuit A
Circuit B
REFRIGERANT SUBCOOLER
Heat Exchanger Size
Expansion Device
CONDENSER COIL
Rows...Fins/inch
Quantity
Length of Tube Sheets (in.)
Width (in.)
Total Face area (sq. ft)
CONDENSER FAN
Nominal Cfm (Total, all fans)
Quantity...Diameter (in.)
Motor Hp...Rpm
Watts input (Total)
EVAPORATOR COIL
Rows...Fins/inch
Length of Tube Sheets (in.)
Width (in.)
Total Face area (sq ft)
EVAPORATOR FAN
Quantity...Size (in.)
Type Drive
Nominal Cfm
Motor Bearing Type
Maximum Allowable Fan Rpm
FURNACE SECTION
Rollout Switch Cutout Temp (F)
Burner Orifice Diameter (in. ...drill size)
Gas
Thermostat Heat Anticipator Setting
Stage 1 (amps)
Stage 2 (amps)
Gas Input (Btuh) HIGH HEAT
Efficiency (Steady State) %
Temperature Rise Range
Gas Input (Btuh) MEDIUM HEAT
Efficiency (Steady State) %
Temperature Rise Range
Gas Input (Btuh) LOW HEAT
Efficiency (Steady State) %
Temperature Rise Range
Manifold Pressure
Natural Gas (in. wg)
Natural Gas (in. wg)
Gas Valve Quantity
Gas Valve Pressure Range
Min-Max Allowable
Field Gas Connection Size (in...FPT)
HIGH-PRESSURE SWITCHES (psig)
Cutout
Reset (Auto)
OUTDOOR AIR INLET SCREENS
Quantity...Size (in.)
RETURN-AIR FILTERS
Quantity...Size (in.)
LEGEND
TXV — Thermostatic Expansion Valve
*Aluminum evaporator coil/aluminum condenser coil.
Table 1 — Physical Data
20
208/230 and 460
18
2480 2480
2
2
85, NA, 85 85, NA, 85
TXV
25.3
25.3
B15Hx26x26 B15Hx26x26
TXV
2...17 2...17
2
80.3
60
33.46 33.46
14,000 14,000
4...22 4...22
1 / ...1100 1 /
4 4
1400 1400
4...15 4...15
69.4
48
23.13 23.13
2...15 x 11 2...15 x 11
Belt
7000 7000
Ball
1400 1400
Vertical 225
0.136...29 0.136...29
Natural Natural
0.98
0.44
Stage 1 317,000 317,000
Stage 2 400,000 400,000
Vertical 82
25-55 25-55
Stage 1 281,000 281,000
Stage 2 365,000 365,000
Vertical 81
25-55 25-55
Stage 1 199,000 199,000
Stage 2 250,000 250,000
Vertical 82
15-45 15-45
Vertical 3.00
Horizontal 2.95
1
(in. wg) 5.5-13.0 5.5-13.0
(psig) .235-.469 .235-.469
3
/
4
630 ± 10 630 ± 10
505 ± 20 505 ± 20
3...20 x 25 3...20 x 25
9...16 x 25 x 2 9...16 x 25 x 2
6
24
575 208/230 and 460
18 20
2588 2588
Fully Hermetic Scroll
2 2
2 2
85, NA, 85 85, NA, 85
Puron® Refrigerant (R-410A)
TXV TXV TXV
25.3 35.7 35.7
25.3 33.5 33.5
B15Hx26x26 B15Hx26x26
TXV TXV TXV
Enhanced Copper Tubes, Aluminum Lanced Fins
3...17 3...17
2 3
80.3 80.3 80.3
60 60
33.46 33.46
Propeller
21,000 21,000
6...22 6...22
...1100 1 / ...1100 1 / ...1100
4 4
2100 2100
Enhanced Copper Tubes, Face Split, Aluminum Double-Wavy Fins
4...15 4...15
69.4 69.4 69.4
48 48
23.13 23.13
Centrifugal, Belt Type
2...15 x 11 2...15 x 11
Belt Belt
8000 8000
Ball Ball
1400 1400
225 225
0.136...29 0.136...29
Natural Natural
0.98 0.98 0.98
0.44 0.44 0.44
317,000 317,000
400,000 400,000
82 82
25-55 25-55
281,000 281,000
365,000 365,000
81 81
25-55 25-55
199,000 199,000
250,000 250,000
82 82
15-45 15-45
3.00 3.00 3.00
2.95 2.95 2.95
1 1
5.5-13.0 5.5-13.0
.235-.469 .235-.469
3 3
/ /
4 4
630 ± 10 630 ± 10
505 ± 20 505 ± 20
3...20 x 25 3...20 x 25
9...16 x 25 x 2 9...16 x 25 x 2
28
575 208/230 and 460 575
20 25
2773 2773
2 3
2 2
85, 85, 85 85, 85, 85
TXV TXV
49.3 49.3
24.3 24.3
B15Hx26x36 B15Hx26x36
TXV TXV
3...17 3...17
3 3
80.3 80.3
60 60
33.46 33.46
21,000 21,000
6...22 6...22
1 / ...1100 1 / ...1100
4 4
2100 2100
4...15 4...15
69.4 69.4
48 60
28.92 28.92
2...15 x 11 2...15 x 11
Belt Belt Belt
10,000 10,000
Ball Ball Ball
1400 1400
225 225 225
0.136...29 0.136...29
Natural Natural
0.98 0.98
0.44 0.44
317,000 317,000
400,000 400,000
82 82
25-55 25-55
281,000 281,000
365,000 365,000
81 81
25-55 25-55
199,000 199,000
250,000 250,000
82 82
15-45 15-45
3.00 3.00
2.95 2.95
1 1
5.5-13.0 5.5-13.0
.235-.469 .235-.469
3 3
/ /
4 4
630 ± 10 630 ± 10
505 ± 20 505 ± 20
3...20 x 25 3...20 x 25
9...20 x 25 x 2 9...20 x 25 x 2
25
3
2
3
60
60
82
81
82
1
3
/
4