Carrier WEATHERMASTER 48ZT User Manual
Page 8
8
Table 1D — Physical Data (48Z6,Z8075-105)
BASE UNIT
48Z6,Z8075
48Z6,Z8090
48Z6,Z8105
NOMINAL CAPACITY (tons)
75
90
105
OPERATING WEIGHT (lb)
Base Unit without Economizer
Low Heat/High Heat
11,740/11,915
11,950/12,125
12,680/12,855
With Economizer
Low Heat/High Heat
12,270/12,445
12,480/12,655
13,210/13,385
COMPRESSOR
Semi-Hermetic
Number
2
2
4
Circuit (No. Cyl)
A (6)
B (6)
A (6)
B (6)
A1 (6), A2 (4)
B1 (6), B2 (4)
Model 06E
-275
-299
-299
-299
-275, -250
-275, -250
Oil Charge (pints)
19
19
19
19
19, 14
19, 14
Capacity Steps (%)
CV
43,100
50,100
50,100
VAV
14,29,43,51,66,71,86,100
17,33,50,67,83,100
20,30,40,50,60,70,80,90,100
Number of Refrigerant Circuits
2
2
2
REFRIGERANT
R-22
Operating Charge (lb), Ckt 1/Ckt 2
Standard Evaporator Coil
70.5/64.5
64.0/64.0
68.0/68.0
Standard Evaporator with HGBP
73.5/64.5
67.0/64.0
71.0/68.0
Alternate High-Capacity Evaporator Coil
83.0/75.0
76.0/76.0
79.5/79.5
Alternate High-Capacity Evaporator with HGBP
86.0/75.0
79.0/76.0
82.5/79.5
CONDENSER COILS
3
/
8
-in. Tube Diameter
Quantity
4
4
4
Rows...Fins/in.
Aluminum
3...17.0
3...17.0
3...17.0
Copper (Optional)
3...15.7
3...15.7
3...15.7
Fin Type
Double Wavy
Lanced, Sine-wave
Lanced, Sine-wave
Tube Type
Smooth
Cross-Hatched
Cross-Hatched
Total Face Area (sq ft)
108.4
108.4
108.4
EVAPORATOR COILS
Quantity
2
Total Face Area (sq ft)
61.5
Refrigerant Feed Device...No. per Circuit
TXV...2
Standard Evaporator Coils
1
/
2
in. Tube Dia
3
/
8
in. Tube Dia
3
/
8
in. Tube Dia
Rows...Fins/in.
4...17.0
4...17.0
4...17.0
Fin Type
Double Wavy
Lanced, Sine Wave
Lanced, Sine Wave
Tube Type
Smooth
Cross Hatched
Cross Hatched
Alternate, High-Capacity Evaporator Coils
1
/
2
in. Tube Dia
Rows...Fins/in.
6...16
6...16
6...16
Fin Type
Double Wavy
Double Wavy
Double Wavy
Tube Type
Cross Hatched
Cross Hatched
Cross Hatched
HEATING SECTION
Low Heat
High Heat
Low Heat
High Heat
Low Heat
High Heat
Number of Heat Exchangers
2
3
2
3
2
3
Input (MBtuh)
650
975
650
975
650
975
Output (MBtuh)
527
790
527
790
527
790
Temperature Rise Range (F)
10-40
20-50
10-40
20-50
10-40
20-50
Efficiency (%)
81
81
81
81
81
81
Burner Orifice Diameter
Quantity (in. ...drill no.)
14 (.1285...30)
21 (.1285...30)
14 (.1285...30)
21 (.1285...30)
14 (.1285...30)
21 (.1285...30)
Manifold Pressure (in. wg)
3.3
3.3
3.3
3.3
3.3
3.3
Line Pressure (in. wg)
(Min...Max)
5.0...13.0
5.0...13.0
5.0...13.0
5.0...13.0
5.0...13.0
5.0...13.0
Number of Gas Valves
2
3
2
3
2
3
CONDENSER FAN
Propeller Type
Quantity...Diameter (in.)
5...30
6...30
6...30
Nominal Cfm
50,000
60,000
60,000
Motor Hp (ea)...rpm
1.0...1140
1.0...1140
1.0...1140
STANDARD SUPPLY FAN
Forward Curved Centrifugal 36 x 30 in.
Nominal Cfm
24,500
29,750
35,000
Maximum Allowable Cfm
30,000
34,000
40,000
Maximum Allowable Rpm
670
670
670
Shaft Diameter at Pulley (in.)
1
11
/
16
1
11
/
16
1
11
/
16
STANDARD SUPPLY-FAN MOTOR AND DRIVE
(Any motor available on any unit.)
Motor Hp
30
40
50
60
Motor Frame Size
S268T
S324T
S36T
S364T
Efficiency at Full Load (%)
High Efficiency
92.4
93.0
93.0
93.6
Premium Efficiency
93.6
94.5
94.5
95.4
Fan Pulley Pitch Diameter (in.)
18.5
18.5
18.5
18.5
Motor Pulley Pitch Diameter (in.)
5.3
5.7
6.5
7.1
Resulting Fan Rpm
501
539
615
672
Belts
Quantity...Type
3...5VX1320
4...5VX1320
4...5VX1320
4...5VX1320
Center Distance Range (in.)
47.88-45.01
47.64-44.76
47.42-44.52
47.42-44.52
ALTERNATE, AIRFOIL FAN
Airfoil
Nominal Airflow (cfm)
24,500
29,750
35,000
Maximum Allowable Airflow (cfm)
30,000
34,000
40,000
Maximum Allowable Wheel Speed (rpm)
1846
1846
1846
Shaft Diameter at Pulley (in.)
2
11
/
16
2
11
/
16
2
11
/
16
ALTERNATE SUPPLY-FAN MOTOR AND DRIVE
(Any motor available on any unit.)
Motor Hp
Motor Frame Size
Efficiency at Full Load (%)
High Efficiency
Premium Efficiency
Fan Pulley Pitch Diameter (in.)
Motor Pulley Pitch Diameter (in.)
Resulting Fan Rpm
Belts
Quantity...Type
Center Distance Range (in.)
30
40
50
60
75
S268T
S324T
S36T
S364T
365T
92.4
93.0
93.0
93.6
94.1
93.6
94.5
94.5
95.4
95.4
9.7
10.2
8.9
8.9
10.8
7.5
8.7
8.1
8.7
11.1
1353
1493
1593
1711
1799
2...5VX1150
2...5VX1180
3...5VX1150
3...5VX1150
3...5VX1230
42.96-45.82
42.69-45.57
42.69-45.57
42.45-45.35
42.45-45.35