Carrier 48MA/50ME016-040 Installation, Start-Up And Service Instructions Manual page 6

UNIT 48MA/50ME
Zone Modules (Quantity)
Nominal Cooling Capacity (tons)
OPERATING WEIGHT (lb)
Base Unit 48MA
Base Unit 50ME (with electric heat)
Roof Curb
REFRIGERANT CHARGE — R-22 (lb)
COMPRESSOR
No. 1 Type
Cylinders...Unloaders
No. 2 Type
Cylinders (have no unloaders)
System Oil Charge (pints)
Unloader Settings (psig)
Unloader No. 2
Unloader No. 1
Capacity Steps (%)
CONDENSER FANS
Motor Hp...Rpm...Frame (NEMA)
Nominal Cfm
EVAPORATOR FANS*
Number...Size (in.)
Cfm (Nominal)
Motor Hp...Rpm
Fan Pulley
Outside Diameter (in.)
Bore (in.)
Fan Belt Number...Size
Motor Pulley
Outside Diameter (in.)
Bore (in.)
Resulting Fan Rpm
Shaft Center Line Distance (in.)
Maximum Fan Rpm
CONDENSER COOLING COIL
Face Area (sq ft)
Corrugated Fins/in. ...Rows
EVAPORATOR COILS (zone)
Number...Face Area (sq ft/ea)
Corrugated Fins/in. ...Rows
HEATING SECTION (48MA)
Rise Range
Input (1000 Btuh)
Bonnet Cap.† (1000 Btuh)
Burner Spud Qty...Size
OPTIONAL HEATING SECTION (50ME Electric)
Electric Heaters
Qty...Elements (each)**
OPTIONAL HEATING SECTION
(50ME Glycol Coil)
Maximum Allowable Inlet Temperature (F)
Maximum Allowable Flow, Each Coil (Gpm)
Solution Mixture
Maximum Allowable Working Pressure (Psig)
Total Internal Volume (Gal)
PRESSURE SWITCHES
Low-Pressure (Psig)
High-Pressure (Psig)
Indoor Airflow Switch (AFS1)
Factory Setting (cfm)
Adjustment Range (cfm)
INDOOR AIR FILTERS
Standard Qty...Size (in.)
High Efficiency (optional)
Qty...Size (in.)
OUTDOOR AIR FILTERS
Qty...Size (in.)
LEGEND
ESP — External Static Pressure
NEMA — National Electrical Manufacturers Association
*Standard unit shipped with standard motor, pulley, and belt(s); alternate unit shipped with alternate motor, pulley, and belt(s).
†The heating efficiency rating is a product thermal efficiency rating determined under continuous operating conditions independent of any installed system.
**See Field Power Supply Wiring section on page 10 and Table 4 for details.
Table 1 — Physical Data
016
8
15
3395
2995
506
28
06DE537
6...2
—
—
11
Loads
Unloads
Loads
Unloads
100,67,33
No. 1
No. 2
No. 3 —
16,500
2...15 × 15
6000
Std 5...1725
Alt —
10.6
1 3 ⁄
16
Std 1...3V630
Alt —
Std 5.3
Alt —
1 ⁄
1
8
Std 880
Alt —
18 ± 2.5
1300
6.8
13...2
8...2.12
13...3
Total 432
Each Module 54
Total 324
Each Module 40.5
2...38
8...2 or 3
2.61
Cutout
Cut-in
Cutout
Cut-in
024 028
8 10
20 25
3815 4075
3415 3675
506 506
32 43
Reciprocating Hermetic, 1725 Rpm
06DE824 06DE537
6...2 6...2
06DA824 06DA824
6 6
18 18
Compressor No. 1 Only
71.0 ± 1.5
57.5 ± 2.5
75.0 ± 1.5
62.5 ± 2.5
100,83,67 100,80,60
50,33,17 40,20
Propeller, Direct Drive
1...1075...56 (Single phase)
1...1140...56 (3 phase)
— —
15,000 15,000
Centrifugal, Belt Drive
2...15 × 15 2...15 × 15
8000 10,000
7 1 ⁄ ...1725 10...1725
2
— —
10.6 8.0
1 3 ⁄ 1 3 ⁄
16 16
1...3V630 2...3V560
— —
Factory Installed
6.0 5.0
— —
1 ⁄ 1 ⁄
3 3
8 8
995 1095
— —
18 ± 2.5 18 ± 2.5
1300 1300
Thermostatic Expansion Valve, Hot Gas Bypass
6.8 6.8
13...2 13...2
Solenoid Valve and Capillary Tube for each
8...2.12 10...2.12
13...3 13...3
One Heat Assembly in Each Zone Module
25 F to 55 F at 0.75 in. wg ESP
432 540
54 54
324 405
40.5 40.5
2...38 2...38
Nichrome, Open-Wire Resistance Element in Each Zone Module
8...2 or 3 10...2 or 3
One Heating Coil in Each Zone Module
200
6
20% Glycol
30
2.61 3.15
29 ± 5
39 ± 5
400 ± 5
300 ± 5
6000
4000-6000
12...20 × 25 × 2
12...20 × 25 × 2 (36.5% Efficient)
2...20 × 25 × 1
6
030 034
10 12
28 30
4080 5340
3680 4900
506 630
43 57
06DE537 06DE537 06EE250
6...2 6...2
06DA537 06DA537 06EA250
6 6
18 18
75.5 ± 1.5
58.0 ± 2.5
100,80,60 100,83,67
40,20 50,33,17
— 1...1140...56 (3 phase)
15,000 24,000
2...15 × 15 3...15 × 9 3...15 × 9
10,000 12,000
10...1725 15...1725 15...1725
— 20...1725 20...1725
8.0 8.0
1 3 ⁄ 1 11 ⁄
16 16
2...3V560 2...3V630 2...3V630
— 3...3V670 3...3V670
5.0 5.0
— 6.0
1 ⁄ 1 ⁄
3 5
8 8
1095 1095
— 1320
18 ± 2.5 21 ± 2.5
1300 1550
6.8 10.2
13...2 13...2
10...2.12 12...2.01
13...3 12...3
540 648
54 54
405 486
40.5 40.5
2...38 2...38
10...2 or 3 12...2 or 3 12...2 or 3
3.15 3.76
9000
6000-9000
2...32 × 35 × 1
040
12
37
5710
5270
630
66.1
4...1
4
31
—
—
100,75,
50,25
23,000
12,000
8.0
1 11 ⁄
16
5.0
6.0
1 ⁄
5
8
1095
1320
21 ± 2.5
1550
10.2
13...3
12...2.01
15...3
648
54
486
40.5
2...38
3.76