Fastener Torque Values; Start-Up, Systemvu Controls - Carrier 48FC M20 Series Service And Maintenance Instructions

Single package rooftop gas heat/electric cooling unit with puron (r-410a) refrigerant 17.5-27.5 nominal tons
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FASTENER TORQUE VALUES

Table 22 — Torque Values
Stator Motor Mounting
50 in.-lb (5.7 Nm) + 5 in.-lb (0.6 Nm)
Screws
Fan Rotor Mounting
50 in.-lb (5.7 Nm) + 5 in.-lb (0.6 Nm)
Screws (2.4 HP)
Fan Rotor Mounting
30 in.-lb (3.4 Nm) + 2 in.-lb (0.2 Nm)
Screws (3 and 5 HP)
Fan Deck Bracket Screws
50 in.-lb (5.7 Nm) + 5 in.-lb (0.6 Nm)
Fan Casing Screws
10 in.-lb (1.1 Nm) + 1 in.-lb (0.1 Nm)
Heat Shield Screws
30 in.-lb (3.4 Nm) + 2 in.-lb (0.2 Nm)
Condenser Motor
30 in.-lb (3.4 Nm) + 2 in.-lb (0.2 Nm)
Mounting Screws
Condenser Hub Set Screw 84 in.-lb (9.5 Nm) + 12 in.-lb (1.5 Nm)
Compressor Mounting
12 ft-lb (16.2 Nm) + 2 ft-lb (2.7 Nm)
Bolts
Tandem Rail Mounting
8 ft-lb (10.8 Nm) + 0.5 ft-lb (0.6 Nm)
Bolts
Crankcase Heater
22.5 in.-lb (2.5 Nm) + 2.5 in.-lb (0.3 Nm)

START-UP, SYSTEMVU CONTROLS

IMPORTANT: SET-UP INSTRUCTIONS
Installation, wiring and troubleshooting information for the
SystemVu™ Controller.: "48/50FC04-30, 48/50GC04-06
Single Package Rooftop Units with SystemVu Controls
Version
X.X
Controls,
Troubleshooting." Have a copy of this manual available at
unit start-up.
69
Start-up,
Operation
and

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