6
Table 1 — Physical Data 48N — 75-150 Tons Nominal Capacity
BASE UNIT (Model Number - Pos.6) *
†
N P Q R S T
NOMINAL CAPACITY (tons) 75 90 105 120 130 150
WEIGHT (lb)
Base Unit * 12,000 12,455 12,455 16,170 16,860 17,040
Split Unit - Main Section 9,110 9,565 9,565 12,880 13,570 13,750
Split Unit - Return Section 2,890 2,890 2,890 3,290 3,290 3,290
COMPRESSORS Scroll
Quantity 5 6 6 8 8 8
Oil Charge (oz) per Compressor 110 110 110 110 110 110
Compressor A1 ZP182 ZP154 ZP182 ZP182 ZP154 ZP182
Compressor A2 ZP182 ZP154 ZP182 ZP154 ZP182 ZP182
Compressor A3 0 ZP154 ZP182 ZP154 ZP182 ZP182
Compressor A4 0 0 0 ZP154 ZP182 ZP182
Compressor B1 ZP137 ZP182 ZP182 ZP182 ZP154 ZP182
Compressor B2 ZP137 ZP182 ZP182 ZP154 ZP182 ZP182
Compressor B3 ZP137 ZP182 ZP182 ZP154 ZP182 ZP182
Compressor B4 0 0 0 ZP154 ZP182 ZP182
Stages of Capacity, % Total Capacity
0,18,23,41,65,82,
100
0,11,15,33,49,
67,82,100
0,13,17,33,50,67,
83,100
0,11,14,28,40,
52,64,76,88,100
0,8,11,22,35,
48,61,74,87,100
0,9,13,25,38,
50,63,75,88,90
Number of Refrigerant Circuits 2 2 2 2 2 2
REFRIGERANT
Type R-410A
Charge Amount See Table 6
METERING DEVICE
Type... Quantity per Circuit Electronically controlled expansion devices... two (2) per circuit
STANDARD EFFICIENCY UNIT CONDENSER MCHX
Material Aluminum Aluminum Aluminum Aluminum Aluminum Aluminum
Number of Total Coils 4 4 4 4 6 6
Total Face Area (sq ft) 138.7 173.3 173.3 173.3 173.3 260.0
HIGH EFFICIENCY UNIT CONDENSER MCHX
NA
Material Aluminum Aluminum Aluminum Aluminum Aluminum
Number of Total Coils 4 6 6 6 6
Total Face Area (sq ft) 138.7 173.3 260.0 260.0 260.0
EVAP-STANDARD CAPACITY with STD EFF RTPF
Material CU-AL CU-AL CU-AL CU-AL CU-AL CU-AL
Quantity 2 2 2 2 2 2
Tube Type Cross Hatched Cross Hatched Cross Hatched Cross Hatched Cross Hatched Cross Hatched
Rows (each) 4 4 6 4 6 6
FPI 16 16 16 16 16 16
Total Face Area (sq ft) 78.8 78.8 78.8 99.6 99.6 99.6
EVAP-STANDARD CAPACITY with HIGH EFF RTPF
NA
Material CU-AL CU-AL CU-AL CU-AL CU-AL
Quantity 2 2 2 2 2
Tube Type Cross Hatched Cross Hatched Cross Hatched Cross Hatched Cross Hatched
Rows (each) 4 4 6 4 6
FPI 16 16 16 16 16
Total Face Area (sq ft) 78.8 78.8 78.8 99.6 99.6
EVAP-HIGH CAPACITY with STD EFFICIENCY RTPF
Material CU-AL CU-AL CU-AL CU-AL CU-AL CU-AL
Quantity 2 2 2 2 2 2
Tube Type Cross Hatched Cross Hatched Cross Hatched Cross Hatched Cross Hatched Cross Hatched
Rows (each) 6 6 8 6 8 8
FPI 16 16 16 16 16 16
Total Face Area (sq ft) 78.8 78.8 78.8 99.6 99.6 99.6
EVAP-HIGH CAPACITY with HIGH EFFICIENCY RTPF
NA
Material CU-AL CU-AL CU-AL CU-AL CU-AL
Quantity 2 2 2 2 2
Tube Type Cross Hatched Cross Hatched Cross Hatched Cross Hatched Cross Hatched
Rows (each) 6 6 8 6 8
FPI 16 16 16 16 16
Total Face Area (sq ft) 78.8 78.8 78.8 99.6 99.6
CONDENSER FAN, STANDARD EFFICIENCY
Number of Fans 4 6 6 6 9 9
Type Prop/Metal Prop/Metal Prop/Plastic Prop/Plastic Prop/Metal Prop/Plastic
Diameter (in.) 30.5 30 30.5 30.5 30 30.5
Motor Hp 1 1 1 1 1 1
Nominal Cfm 41,000 81,000 81,000 81,000 93,000 122,400
Motor Rpm 1140 1140 1140 1140 1140 1140
CONDENSER FAN, HIGH EFFICIENCY
NA
Number of Fans 6 9
9 9 9
Type Prop/Metal Prop/Plastic Prop/Plastic Prop/Plastic Prop/Plastic
Diameter (in.) 30.5 30.5 30.5 30.5 30.5
Motor Hp 1 1 1 1 1
Nominal Cfm 61,000 93,000 93,000 93,000 93,000
Motor Rpm 1140 1140 1140 1140 1140
†
48
N2 D
N
6 0 Option Code
Factory Options48 – Cooling Unit with Gas Heat
Configuration
Design Revision Level
Voltage Options
1 – 575-3-60
Heat and Chassis Options
6 – 460-3-60
Unit Size – Nominal Tons
N – 75
P – 90
Q – 105
R – 120
S – 130
T – 150
* Base unit includes: economizer dampers and hoods,
filter tracks less filters, evaporator coil mounting less
the evaporator, extended plenum, and standard effi-
ciency condenser. For 75-105 nominal ton units only,
base unit weight also includes the short supply fan
section.
LEGEND
Cu-Al — Copper-to-Aluminum
DWDI — Double Width Double Inlet
FPI — Fins per Inch
EFF — Efficiency
MBtuh — Btuh in Thousands
MCHX — Microchannel Heat Exchanger
RTPF — Round Tube Plate Fin
SWSI — Single Width Single Inlet
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