Carrier WeatherMaker 48A 020 Installation Instructions Manual page 18

UNIT 48A
NOMINAL CAPACITY (tons)
BASE UNIT
OPERATING WEIGHT (lb)
COMPRESSOR
Quantity ... Type (Ckt 1/Ckt 2)
Number of Refrigerant Circuits
Oil
REFRIGERANT
Operating Charge (lb), Ckt 1/Ckt 2
RTPF Coils
MCHX Coils
MCHX Coils with Humidi-MiZer ®
MCHX CONDENSER*
Quantity
Total Face Area (sq ft)
RTPF CONDENSER
Quantity
Rows...Fins/in.
Total Face Area (sq ft)
CONDENSER FAN
Nominal Cfm
Quantity... Diameter (in.)
Motor Hp
EVAPORATOR COIL
Tube Size (in.)
Rows ... Fins/in.
Total Face Area (sq ft)
HUMIDI-MIZER COIL
Quantity
Face Area (sq ft)
EVAPORATOR FAN
Quantity ... Size (in.)
Type Drive
Nominal Cfm
Motor Hp
Motor Frame Size
Motor Bearing Type
Maximum Allowable Rpm
Motor Pulley Pitch Diameter
Nominal Motor Shaft Diameter (in.)
Fan Pulley Pitch Diameter (in.)
Nominal Fan Shaft Diameter (in.)
Belt Quantity
Belt Type
Belt Length (in.)
Pulley Center Line Distance (in.)
Factory Speed Setting (rpm)
FURNACE SECTION
Supply Line Pressure Range
Rollout Switch Cutout
Temp (F)†
Burner Orifice Diameter (in. ...drill
size)
Natural Gas
Liquid Propane
Thermostat Heat Anticipator Setting
Stage 1 (amps)
Stage 2 (amps)
Gas Input (Btuh) Stage 1
(Low Heat/High Heat)
Stage 2 
(Low Heat/High Heat)
Efficiency (Steady State) (%)
Temperature Rise Range (F)
Manifold Pressure (in. wg)
Natural Gas
Liquid Propane
Gas Valve Quantity
HIGH-PRESSURE SWITCH (psig)
Cutout
Reset (Auto.)
MIXED-AIR FILTERS
Quantity ... Size (in.) Standard
Pleated
OUTDOOR-AIR FILTERS
Quantity...Size (in.)
POWER EXHAUST
Motor, Quantity...Hp
Fan, Diameter...Width (in.)
LEGEND
Al — Aluminum
Cu — Copper
MCHX— Microchannel Heat Exchanger
RTPF — Round Tube Plate Fin
Table 1 — Physical Data — 48A Units
020D/E
20
2 ... ZP67/1...ZP91
2
Precharged
25.8/18.6
14.5/11.6
Coil
21.7/11.6
1
32.9
1
2...15
33.3
19,500
2 ... 30
1
Cross-Hatched Copper Tubes, Aluminum Plate Fins with Intertwined Circuits
3 /
8
3 ... 15
31.7
1
14.4
2 ... 20 X 15
Belt
8,000
5 10 15
184T 215T 254T
Ball
1200
4.8 4.4 5.7
1 3 5
1 / 1 / 1
8 8
12.4 8.6 9.1
15
1 /
16
1 2 2
BX56 BX50 5VX530
56 63 53
16.0-18.7 15.6-18.4 15.0-17.9 15.6-18.4
717 924 1096
225
Std .111 ... 34
Alt .089 ... 43
0.1
0.1
262,500/394,000
350,000/525,000
81
15-45/35-65
Std
3.5
Alt 3.5
2
650
500
10 ... 20 x 24 x 2
5 ... 20 x 20 x 4
5 ... 20 x 24 x 4
Direct Drive, Single-Phase Motors (Factory-Wired for High Speed Operation), Forward-Curved Fan Wheels
025D/E
25
See Unit Weights Table
2 ... ZP91/1...ZP91
2
Precharged
R-410A
30.2/15.2
16.5/11.0
23.7/11.0
1
32.9
1
3...15
33.3
Propeller Type
19,500
2 ... 30
1
3 /
8
4 ... 14
31.7
1
14.4
Centrifugal Type
2 ... 20 X 15
Belt
10,000
5 10 15
184T 215T 254T
Ball
1200
5.2 6.1 5.5
1 3 5
/ 1 / 1 / 1 /
8 8 8 8
12.4 11.1 8.7
15
1 /
16
1 1 2
BX56 5VX570 5VX530 BX50
56 57 53
15.6- 15.0-
18.4 17.9
773 962 1106
5.0-in. wg min/13.5-in. wg max.
225
.111 ... 34
.089 ... 43
0.1
0.1
262,500/394,000
350,000/525,000
81
15-45/35-65
3.5
3.5
2
650
500
10 ... 20 x 24 x 2
5 ... 20 x 20 x 4
5 ... 20 x 24 x 4
8...16 x 25 x 2
4...20 x 25 x 2
with Backdraft Dampers on Each Fan Housing
4...1
11 x 10
Sizes 020 to 027: Circuit 1 uses the lower portion of condenser coil, 
*
Circuit 2 uses the upper portion.
Sizes 030 and 035: Circuit 1 uses the upper portion of condenser coil, 
Circuit 2 uses the lower portion.
Sizes 040 and 050: Circuit 1 uses the left condenser coil, Circuit 2 the right.
Size 060: Circuit A uses the two MCHX coils near the bulkhead, Circuit B uses
the two MCHX coils near the control box.
† Rollout switch is manual reset.
18
027D/E
27
2 ... ZP91/1...ZP91
2
Precharged
32.8/16.5
16.5/11.0
23.7/11.0
1
32.9
1
3...15
33.3
19,500
2 ... 30
1
3 /
8
4 ... 15
31.7
1
14.4
2 ... 20 X 15
Belt
11,000
10 15 20 10
215T 254T 256T 215T
Ball
1200
4.4 4.9 5.9 4.4
3 5 5 3
1 / 1 / 1 / 1 /
8 8 8 8
9.4 8.1 8.7 9.0
15
1 /
16
2 2 2 2
5VX500 5VX530 BX50
50 50 53 50
15.6-
15.0-17.9 15.0-17.9 15.6-18.4 15.0-17.9 15.0-17.9
18.4
848 1059 1187 856
225
.111 ... 34
.089 ... 43
0.1
0.1
262,500/394,000
350,000/525,000
81
15-45/35-65
3.5
3.5
2
650
500
10 ... 20 x 24 x 2
5 ... 20 x 20 x 4
5 ... 20 x 24 x 4
030D/E
30
2...ZP72, 2...ZP72
2
Precharged
30.5/34.3
15.1/15.3
15.1/22.5
1
32.9
1
4...15
33.3
19,500
2 ... 30
1
3 /
8
4 ... 15
31.7
1
14.4
2 ... 20 X 15
Belt
12,000
15 20
254T 256T
Ball
1200
5.7 5.9
5 5
1 / 1 /
8 8
9.1 8.7
1 15 /
16
2 2
5VX530 5VX530
53 53
1096 1187
225
.111 ... 34
.089 ... 43
0.1
0.1
262,500/394,000
350,000/525,000
81
15-45/35-65
3.5
3.5
2
650
500
10 ... 20 x 24 x 2
5 ... 20 x 20 x 4
5 ... 20 x 24 x 4