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5
Table 1B — Physical Data 48P2,P3,P4,P5055-070
LEGEND
*See Table 7 — Power Exhaust Fan Drive Data on page 9 for more information.
BASE UNIT
48P2,P3,P4,P5055
48P2,P3,P4,P5060
48P2,P3,P4,P5070
NOMINAL CAPACITY (tons)
55
60
70
OPERATING WEIGHT (lb)
Standard Chassis
Extended Chassis
Standard Chassis
Extended Chassis
Standard Chassis
Extended Chassis
Base Unit
Low Heat
7810
8360
7865
8415
8205
8755
High Heat
7940
8490
7995
8545
8335
8885
With Economizer
Low Heat
8340
8890
8395
8945
8735
9285
High Heat
8470
9020
8525
9075
8865
9415
COMPRESSORS
Scroll
Quantity...Type
2...ZP137/2...ZP137
2...ZP154/2...ZP154
1...ZP54,1...ZP182/1...ZP54,1...ZP182
Oil Charge (oz) per Compressor
110
110
110
Number of Refrigerant Circuits
2
2
2
REFRIGERANT
R-410A
Operating Charge (lb), Ckt 1/Ckt 2
Standard Evaporator Coil
37.6/37.9
42.2/41.8
43.5/44.8
Standard Evaporator with Humidi-MiZer®
37.6/50.3
42.2/54.2
43.5/57.2
Alternate High-Capacity Evaporator Coil
46.5/45.8
47.6/46.5
55.4/55.5
Alternate High-Capacity Evaporator with
Humidi-MiZer
46.5/58.2
47.6/58.9
55.4/67.9
CONDENSER COILS
Aluminum Novation® Heat Exchanger with Microchannel Coils
Quantity
2
2
4
Total Face Area (sq ft)
66.7
66.7
106.7
EVAPORATOR COILS
Quantity
2
Total Face Area (sq ft)
61.5
Refrigerant Feed Device...No. per Circuit
TXV...2
Standard Evaporator Coils
Rows...Fins/in.
4...15
4...15
4...15
Fin Type
Double Wavy
Double Wavy
Double Wavy
Tube Type
Cross Hatched
Cross Hatched
Cross Hatched
Alternate, High-Capacity Evaporator Coils
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
14
21
14
21
14
21
Input (MBtuh)
650
975
650
975
650
975
Output (MBtuh) (Vertical/Horizontal)
527/520
790/780
527/520
790/780
527/520
790/780
Temperature Rise Range (F)
10-40
20-50
10-40
20-50
10-40
20-50
Efficiency (%) (Vertical/Horizontal)
81/80
81/80
81/80
81/80
81/80
81/80
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)
3.5
3.5
3.5
3.5
3.5
3.5
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
Firing Stages
2
2
2
2
2
2
Number of Gas Valves
2
3
2
3
2
3
CONDENSER FANS
Propeller Type
Quantity...Diameter (in.)
4...30
4...30
4...30
Nominal Cfm
36,000
36,600
39,000
Motor Hp...Rpm
1.0...1140
1.0...1140
1.0...1140
SUPPLY FAN
Centrifugal 30 x 27.5 in.
Nominal Cfm
17,500
21,000
24,500
Maximum Allowable Cfm
25,000
30,000
30,000
Maximum Allowable Rpm
800
800
800
Shaft Diameter at Pulley (in.)
1
11
/
16
1
11
/
16
1
11
/
16
SUPPLY-FAN MOTOR AND DRIVE
(Any motor available on any unit)
Motor Hp
15
20
25
30
40†
Motor Frame Size
254T
256T
284T
286T
S324T
Efficiency at Full Load (%)
High Efficiency
91.0
91.0
91.7
92.4
93.0
Premium Efficiency
93.0
93.6
93.6
93.6
94.5
Fan Pulley Pitch Diameter (in.)
13.7
13.7
13.7
15.5
16.1
Motor Pulley Pitch Diameter (in.)
4.5
5.1
5.5
5.9
6.7
Resulting Fan Speed (rpm)
575
651
703
711
740
Belts Quantity...Type
2...5VX1230
2...5VX1230
2...5VX1230
2...5VX1230
3...5VX1250
Center Distance Range (in.)
48.25-44.00
48.25-44.00
48.50-44.25
48.50-44.25
48.25-44.00
OPTIONAL POWER EXHAUST*
Centrifugal, 18 x 15 in. (Any motor available on any unit)
Quantity...Motor Hp
2...5
2...7.5
2...10
Motor Frame Size
184T
213T
215T
Efficiency at Full Load (%) High/Premium
87.5/89.5
88.5/91.7
89.5/91.7
Resulting Fan Rpm
740
820
920
Maximum Allowable Rpm
1000
1000
1000
FILTERS
Standard Efficiency Throwaway (Standard)
Quantity...Size (in.)
12...20 x 25 x 2, 12...20 x 20 x 2
12...20 x 25 x 2, 12...20 x 20 x 2
12...20 x 25 x 2, 12...20 x 20 x 2
Medium Efficiency (30%) Pleated (Optional)
Quantity...Size (in.)
12...20 x 25 x 2, 12...20 x 20 x 2
12...20 x 25 x 2, 12...20 x 20 x 2
12...20 x 25 x 2, 12...20 x 20 x 2
High Efficiency (90%) Bag Filters
with High Velocity Prefilters (Optional)
Quantity...Size (in.)
Bag Filter
6...24 x 24 x 22, 6...24 x 20 x 22
6...24 x 24 x 22, 6...24 x 20 x 22
6...24 x 24 x 22, 6...24 x 20 x 22
Prefilter
6...24 x 24 x 2, 6...20 x 24 x 2
6...24 x 24 x 2, 6...20 x 24 x 2
6...24 x 24 x 2, 6...20 x 24 x 2
MERV 15 Cartridge Filters with
High Velocity Prefilters (Optional)
Quantity...Size (in.)
Cartridge Filter
6...24 x 24 x 12,, 6...24 x 20 x 12
6...24 x 24 x 12,, 6...24 x 20 x 12
6...24 x 24 x 12, 6...24 x 20 x 12
Prefilter
6...24 x 24 x 2, 6...20 x 24 x 2
6...24 x 24 x 2, 6...20 x 24 x 2
6...24 x 24 x 2, 6...20 x 24 x 2
OUTSIDE AIR SCREENS
Standard Hood (25%) Quantity...Size (in.)
4...25 x 16 x 1, 2...20 x 16 x 1
4...25 x 16 x 1, 2...20 x 16 x 1
4...25 x 16 x 1, 2...20 x 16 x 1
OPTIONAL ECONOMIZER FILTER
Aluminum Frame, Permanent
Quantity...Size (in.)
12...16 x 25 x 1, 2...16 x 20 x 1
12...16 x 25 x 1, 2...16 x 20 x 1
12...16 x 25 x 1, 2...16 x 20 x 1
MBtuh —
Btuh in Thousands
TXV
—
Thermostatic Expansion Valve
Summary of Contents for WEATHER MASTER 48P2
Page 10: ...10 Fig 1 Roof Curb Sizes 030 050...
Page 11: ...11 Fig 2 Roof Curb Sizes 055 060...
Page 12: ...12 Fig 3 Roof Curb Sizes 070 100...
Page 13: ...13 Fig 4 Condenser Section Roof Curb Sizes 070 and 075...
Page 14: ...14 Fig 5 Condenser Section Roof Curb Sizes 090 and 100...
Page 21: ...21 Fig 12 Base Unit Dimensional Drawing 48P2 P3030 035 Standard Chassis Unit Shown a48 8613...
Page 22: ...22 Fig 13 Base Unit Dimensional Drawing 48P4 P5030 035 Standard Chassis Unit Shown a48 8614...
Page 23: ...23 Fig 14 Base Unit Dimensional Drawing 48P2 P3040 050 Standard Chassis Unit Shown a48 8615...
Page 24: ...24 Fig 15 Base Unit Dimensional Drawing 48P4 P5040 050 Standard Chassis Unit Shown a48 8616...
Page 25: ...25 Fig 16 Base Unit Dimensional Drawing 48P2 P3055 060 Standard Chassis Unit Shown a48 8617...
Page 26: ...26 Fig 17 Base Unit Dimensional Drawing 48P4 P5055 060 Standard Chassis Unit Shown a48 8618...
Page 27: ...27 Fig 18 Base Unit Dimensional Drawing 48P2 P3070 Standard Chassis Unit Shown a48 8619...
Page 28: ...28 Fig 19 Base Unit Dimensional Drawing 48P4 P5070 Standard Chassis Unit Shown a48 8620...