Carrier WeatherMaker 48A020 Installation Instructions Manual page 18

Single package gas heating/electric cooling rooftop units with comfortlink controls and puron refrigerant
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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 (in.)
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 (cont)
035D/E
35
2 ... ZP67/2...ZP104
2
Precharged
28.7/44.0
17.9/26.0
Coil
17.9/31.5
1
32.9
1
4...15
33.3
19,500
2 ... 30
1
1
/
2
6 ... 16
31.3
1
14.4
2 ... 20 X 15
Belt
14,000
15
20
254T
256T
Ball
1300
5.1
5.7
1
/
1
/
5
5
8
8
8.7
8.7
1
15
/
16
2
2
5VX500 5VX530 5VX550 5VX530 5VX550 5VX590 5VX550 5VX570 5VX570 5VX530 5VX550 5VX570
50
53
15.0-
15.0-
17.9
17.9
1025
1147
225
.111 ... 34 (low)/.120 ... 31
Std
(high)
Alt
.089 ... 43
0.1
0.1
262,500/600,000
350,000/800,000
81
15-45/30-60
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
8...16 x 25 x 2
4...20 x 25 x 2
Direct Drive, Single-Phase Motors (Factory-Wired for High Speed Operation), Forward-Curved Fan Wheels
4...1
11 x 10
040D/E
40
See Unit Weights Table
2...ZP104/2...ZP104
2
Precharged
R-410A
44.0/44.0
23.0/23.5
23.0/30.5
2
65.8
2
3...15
66.7
Propeller Type
32,000
4 ... 30
1
Cross-Hatched Copper Tubes, Aluminum Plate Fins with Intertwined Circuits
1
/
2
4 ... 17
31.3
1
14.4
Centrifugal Type
2 ... 20 X 15
Belt
16,000
25
15
20
25
284T
254T
256T
284T
Ball
1300
6.2
5.3
5.7
7.5
1
/
1
/
1
/
1
/
7
5
5
7
8
8
8
8
8.7
9.5
9.5
11.1
1
15
/
16
2
2
2
2
55
53
55
59
15.0-
15.0-
15.0-
14.6-
17.9
17.9
17.9
17.6
1247
976
1050
1182
5.0-in. wg min/13.5-in. wg max.
225
.120 ... 31
.096 ... 41
0.24
0.13
300,000/600,000
400,000/800,000
81
10-40/30-60
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
050D/E
50
2...ZP122/2...ZP122
2...ZP154/2...ZP154
2
Precharged
56.3/57.3
27.0/28.0
26.5/34.5
2
65.8
2
4...15
66.7
35,000
4...30.5(MCHX),
4 ... 30
1
1
/
2
6 ... 16
31.3
1
14.4
2 ... 20 X 15
Belt
18,000
20
25
30
25
256T
284T
286T
284T
Ball
1300
5.7
6.2
6.7
5.3
1
/
1
/
1
/
1
/
5
7
7
7
8
8
8
8
9.5
9.5
9.5
9.1
1
15
/
16
2
2
2
3
55
57
57
53
15.0-
14.6-
14.6-
15.2-
17.9
17.6
17.6
17.5
1050
1142
1234
1019
225
.120 ... 31
.096 ... 41
0.1
0.1
300,000/600,000
582,000/873,000
400,000/800,000
776,000/1,164,000
81
10-40/30-60
3.5
3.5
2
650
500
10 ... 20 x 24 x 2
16...20 x 24 x 2
5 ... 20 x 20 x 4
5 ... 20 x 24 x 4
8...16 x 25 x 2
12...16 x 25 x 2
4...20 x 25 x 2
4...1
11 x 10
060D/E
60
2
Precharged
78.5/82.0
36.6/37.8
36.6/47.6
4
105.2
2
6...30
100.0
40,000
6...30(RTPF)
1
1
/
2
4...17
48.1
1
14.1
3 ... 20 X 15
Belt
24,000
30
40
286T
324T
Ball
1200
5.9
6.5
1
/
2
/
7
1
8
8
9.5
9.5
1
15
/
16
3
3
55
57
14.7-
14.2-
17.2
17.0
1087
1197
225
.120...31
.096...41
0.1
0.1
81
10-40/30-60
3.3
3.3
3
650
500
8...20 x 20 x 4
8...20 x 24 x 4
6...20 x 25 x 2
6...1
11 x 10

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Weathermaker 48a060

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