Carrier 48FC M20 Series Service And Maintenance Instructions page 71

Single package rooftop gas heat/electric cooling unit with puron (r-410a) refrigerant 17.5-27.5 nominal tons
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UNIT
NOMINAL CAPACITY (tons)
BASE UNIT OPERATING WT (lb) 48FC
REFRIGERATION SYSTEM
Number Circuits / Number Compressors / Type
Puron
(R-410A) Charge (lb-oz)
®
Humidi-MiZer
®
Puron (R-410A) Charge (lb-oz)
Metering Device
Humidi-MiZer Metering Device
High-Pressure Trip / Reset (psig)
Low-Pressure Trip / Reset
EVAPORATOR COIL
Material (Tube / Fin)
Coil Type (RTPF)
Rows / FPI
Total Face Area (ft
2
)
Condensate Drain Connection Size
CONDENSER COIL
Material (Tube / Fin)
Coil Type (RTPF)
Rows / FPI
Total Face Area (ft
2
)
HUMIDI-MIZER COIL
Material
Coil Type (RTPF)
Rows / FPI
Total Face Area (ft
2
)
EVAPORATOR FAN AND MOTOR
Vertical Standard Static 3 Phase
Motor Qty / Drive Type
Max Cont bhp (per motor)
Range (rpm)
Fan Qty / Type
Fan Diameter (in.)
Vertical High Static 3 Phase
Motor Qty / Drive Type
Max Cont bhp (per motor)
Range (rpm)
Fan Qty / Type
Fan Diameter (in.)
Horizontal High Static 3 Phase
Motor Qty / Drive Type
Max Cont bhp (per motor)
Range (rpm)
Fan Qty / Type
Fan Diameter (in.)
CONDENSER FAN AND MOTOR
Qty / Motor Drive Type
Motor hp / rpm
Fan Diameter (in.)
Filters
RA Filter Qty / Size (in.)
OA Inlet Screen Qty / Size (in.)
NOTE(S):
a. Base unit operating weight does not include weight of options.
LEGEND
bhp — Brake Horsepower
FPI — Fins Per Inch
OA
— Outdoor Air
RA
— Return Air
APPENDIX B — PHYSICAL DATA
48FC*(M/N) 20 to 24 — Physical Data
48FC*M20
17.5
a
1800
1 / 2 / Scroll
28-14
TXV
630 / 505
54 / 117
Cu / Al
3/8 in.
4 / 15
22
3/4 in.
Cu / Al
5/16 in.
2 / 18
19.6
2 / Direct
2.4
250-2000
2 / Vane Axial
22
2 / Direct
3
250-2200
2 / Vane Axial
22
2 / Direct
5
250-2200
2 / Vane Axial
22
3 / direct
1/4 / 1100
22
6 / 20x25x2
4 / 16x25x1
48FC*N20
17.5
1800
1 / 2 / Scroll
40-2
TXV
630 / 505
54 / 117
Cu / Al
3/8 in.
4 / 15
22
3/4 in.
Cu / Al
5/16 in.
2 / 18
19.6
Cu / Al
5/16 in.
1 / 18
21.4
2 / Direct
2.4
250-2000
2 / Vane Axial
22
2 / Direct
5
250-2200
2 / Vane Axial
22
2 / Direct
5
250-2200
2 / Vane Axial
22
3 / direct
1/4 / 1100
22
6 / 20x25x2
4 / 16x25x1
71
48FC*M24
48FC*N24
20
20
2000
2000
1 / 2 / Scroll
1 / 2 / Scroll
32-0
43-0
TXV
TXV
630 / 505
630 / 505
54 / 117
54 / 117
Cu / Al
Cu / Al
3/8 in.
3/8 in.
4 / 15
4 / 15
22
22
3/4 in.
3/4 in.
Cu / Al
Cu / Al
5/16 in.
5/16 in.
2 / 18
2 / 18
23.8
23.8
Cu / Al
5/16 in.
1 / 18
21.4
2 / Direct
2 / Direct
2.4
2.4
250-2000
250-2000
2 / Vane Axial
2 / Vane Axial
22
22
2 / Direct
2 / Direct
5
5
250-2200
250-2200
2 / Vane Axial
2 / Vane Axial
22
22
2 / Direct
2 / Direct
5
5
250-2200
250-2200
2 / Vane Axial
2 / Vane Axial
22
22
4 / direct
4 / direct
1/4 / 1100
1/4 / 1100
22
22
6 / 20x25x2
6 / 20x25x2
4 / 16x25x1
4 / 16x25x1

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