68
APPENDIX B — PHYSICAL DATA (cont)
50FC 28 to 30 Physical Data
50FC UNIT 50FC-*M28 50FC-*N28 50FC-*M30 50FC-*N30
NOMINAL TONS 25.0 25.0 27.5 27.5
BASE UNIT OPERATING WT (lb)
a
a. Base unit operating weight does not include weight of options.
2047 2047 2224 2224
REFRIGERATION SYSTEM
No. Circuits / No. Compressors / Type 1 / 2 / Scroll 1 / 2 / Scroll 1 / 2 / Scroll 1 / 2 / Scroll
Puron
®
 (R-410A) Charge (lb-oz) 37-10 — 46-0 —
Humidi-MiZer
®
 Puron (R-410A) Charge (lb-oz) — 43-8 — 55-3
Metering Device TXV — TXV —
Humidi-MiZer Metering Device —TXV—TXV
High-Pressure Trip / Reset (psig) 630 / 505 630 / 505 630 / 505 630 / 505
Low-Pressure Trip / Reset 54 / 117 54 / 117 54 / 117 54 / 117
EVAPORATOR COIL
Material (Tube / Fin) Cu / Al Cu / Al Cu / Al Cu / Al
Coil Type (in. RTPF) 3/8 3/8 3/8 3/8
Rows / FPI 4 / 15 4 / 15 4 / 15 4 / 15
Total Face Area (ft
2
) 23.1 23.1 26 26
Condensate Drain Connection Size (in.) 3/4 3/4 3/4 3/4
CONDENSER COIL
Material (Tube / Fin) Cu / Al Cu / Al Cu / Al Cu / Al
Coil Type (in. RTPF) 5/16 5/16 5/16 5/16
Rows / FPI 2 / 18 2 / 18 2 / 18 2 / 18
Total Face Area (ft
2
) 25.3 25.3 28.9 28.9
HUMIDI-MIZER COIL
Material (Tube / Fin) —Cu / Al—Cu / Al
Coil Type (in. RTPF) — 5/16 — 5/16
Rows / FPI — 1 / 18 — 1 / 18
Total Face Area (ft
2
) — 22.4 — 25.3
EVAPORATOR FAN AND MOTOR
Vertical Standard Static 3 Phase
Motor Qty / Drive Type 2 / Direct 2 / Direct 2 / Direct 2 / Direct
Max Cont bhp (per motor) 3333
Range (rpm) 250-2000 250-2000 250-2000 250-2000
Fan Qty / Type 2 / Vane Axial 2 / Vane Axial 2 / Vane Axial 2 / Vane Axial
Fan Diameter (in.) 22 22 22 22
Vertical High Static 3 Phase
Motor Qty / Drive Type 2 / Direct 2 / Direct 2 / Direct 2 / Direct
Max Cont bhp (per motor) 3555
Range (rpm) 250-2200 250-2200 250-2200 250-2200
Fan Qty / Type 2 / Vane Axial 2 / Vane Axial 2 / Vane Axial 2 / Vane Axial
Fan Diameter (in.) 22 22 22 22
Horizontal High Static 3 Phase
Motor Qty / Drive Type 2 / Direct 2 / Direct 2 / Direct 2 / Direct
Max Cont bhp (per motor) 5555
Range (rpm) 250-2200 250-2200 250-2200 250-2200
Fan Qty / Type 2 / Vane Axial 2 / Vane Axial 2 / Vane Axial 2 / Vane Axial
Fan Diameter (in.) 22 22 22 22
CONDENSER FAN AND MOTOR
Qty / Motor Drive Type 4 / direct 4 / direct 6 / direct 6 / direct
Motor hp / rpm 1/4 / 1100 1/4 / 1100 1/4 / 1100 1/4 / 1100
Fan Diameter (in.) 22 22 22 22
Filters
RA Filter Qty / Size (in.) 9 / 20x25x2 9 / 20x25x2 9 / 20x25x2 9 / 20x25x2
OA Inlet Screen Qty / Size (in.) 4 / 16x25x1 4 / 16x25x1 4 / 16x25x1 4 / 16x25x1
LEGEND
bhp — Brake Horsepower
FPI —Fins Per Inch
OA — Outdoor Air
RA — Return Air