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Table1 — Physical Data (cont)
BASE UNIT 48/50MP 90P 10R
NOMINAL CAPACITY (tons) 115 120
OPERATING WEIGHT (lb)
Base Unit (48MP/50MP) 24,660/24,750 25,110/25,100
Copper Condenser Coils 950 950
Exhaust Fan 2400 2400
COMPRESSORS Semi-Hermetic
Number of Refrigerant Circuits 22
Circuit (No. of Cylinders) A1 (6), A2 (6) B1 (6), B2 (6) A1 (6), A2 (6) B1 (6), B2 (6)
Model 06E −265, −275 −265, −275 −265, −299 −265, −275
Oil Charge (pints) 19, 19 19, 19 19, 19 19, 19
Capacity Steps (%) 15,23,30,38,45,58,65,73,85,92,100 14,21,28,35,42,61,68,75,86,93,100
REFRIGERANT R-22
Operating Charge (lb), Sys 1/Sys 2 (Standard Coil) 85/85 86/87
Operating Charge (lb), Sys 1/Sys 2 (Alternate Coil) 93/93 93/96
CONDENSER COILS Grooved Tube (
3
⁄
8
-in. OD)
Quantity 44
Rows...Fins/in. 3...17 3...17
Total Face Area (sq ft) 168.0 168.0
EVAPORATOR COILS Smooth Tube (
5
⁄
8
-in. OD)
Quantity 22
Rows...Fins/in.
Standard 3...14 3...14
Alternate 4...14 4...14
Total Face Area (sq ft) 90.3 101.4
Refrigerant Feed
Device...No. per Circuit TXV...2 TXV...2
EVAPORATOR FANS
Forward Curved Fan
Motor Hp 50 60 60
Motor Frame Size 326T 364T 364T
Efficiency at Full Load (%)
Standard Efficiency 93.0 94.5 94.5
High Efficiency 94.5 95.4 95.4
Fan Pulley Pitch Diameter (in.) 18.8 18.8 21.3
Motor Pulley Pitch Diameter (in.) 5.9 6.7 6.7
Fan Rpm 555 630 556
Belts Quantity...Model No. 4...5VX1120 4...5VX1120 4...5VX1150
Center Distance Range (in.) 35.4/40.2 35.4/40.2 34.2/40.2
Maximum Rpm 715 715 715
Air Foil Fan
Motor Hp 50 60 50 60
Motor Frame Size 326T 364T 326T 364T
Efficiency at Full Load (%)
Standard Efficiency 93.0 94.5 93.0 94.5
High Efficiency 94.5 95.4 94.5 95.4
Fan Pulley Pitch Diameter (in.) 12.5 13.7 13.7 13.7
Motor Pulley Pitch Diameter (in.) 7.5 8.7 8.1 8.7
Fan Rpm 1050 1111 1035 1111
Belts Quantity...Model No. 3...5VX1030 3...5VX1060 3...5VX1060 3...5VX1060
Center Distance Range (in.) 35.4/39.4 34.4/39.1 35.4/39.4 34.4/39.1
Maximum Rpm 1298 1298 1298 1298
Air Foil Fan (cont)
Motor Hp 75 75
Motor Frame Size 365T 365T
Efficiency at Full Load (%)
Standard Efficiency 95.4 95.4
High Efficiency ——
Fan Pulley Pitch Diameter (in.) 16.1 16.1
Motor Pulley Pitch Diameter (in.) 11.1 11.1
Fan Rpm 1207 1207
Belts Quantity...Model No. 3...5VX1120 3...5VX1120
Center Distance Range (in.) 34.4/39.1 34.4/39.1
Maximum Rpm 1298 1298
CONDENSER FANS
Quantity...Diameter (in.) 8...30 8...30
Nominal Cfm 69,500 69,500
Motor Hp...Rpm 1...1140 1...1140
SUPPLY FAN Forward Curve Airfoil Forward Curve Airfoil
Nominal Cfm 46,000 46,000 52,000 52,000
Size (in.) 36.0 40.25 36.0 40.25
Maximum Allowable Rpm 715 1298 715 1298
Shaft Diameter at Pulley (in.) 2.69 2.44 2.69 2.44
FURNACE SECTION (48MP Units Only)
Rollout Switch Cutout Temp (F) 190
Number of Burners 7
Burner Orifice Diameter (in. ...drill size) 0.136...29
Gas Input (Btuh) 342,000
Manifold Pressure (in. wg) — Natural Gas 3.3
Gas Valve Input Pressure Range
in. wg 5.5-13.5
psig 0.235-0.487
LOW HEAT (48MPD)/HIGH HEAT (48MPE)
Number of Sections 2/3
Gas Input(Btuh) Stage 1 515,000/770,000
Stage 2 685,000/1,025,000
Efficiency (Steady State %) 81/81
Temperature Rise Range (F) 5-35/10-40
Minimum Heating Airflow (cfm) 14,700/19,250
Field Gas Connection Size (in.) 2
FILTERS
Medium Efficiency (30%)
Pleated (Standard) Quantity...Size (in.)
20...24 x 24 x 2,
5...24 x 12 x 2
20...24 x 24 x 2,
5...24 x 12 x 2
High Efficiency (90%)
Cartridge Filters with Prefilters (Optional)
Quantity...Size (in.)
20...24 x 24 x 4,
5...24 x 12 x 4
20...24 x 24 x 4,
5...24 x 12 x 4
Outdoor Air Inlet Screens Cleanable Aluminum
Quantity...Size (in.) 24...20 x 25 x 1 24...20 x 25 x 1
LEGEND
TXV — Thermostatic Expansion Valve
5