Heating; Ventilation (Continuous Fan); Fastener Torque Values; Start-Up, Systemvu Controls - Carrier 50FC 08-16 Series Service And Maintenance Instructions

Heating

To start unit, turn on main power supply. Set system selector
switch to the HEAT position and set thermostat at a setting above
room temperature. Set fan to AUTO position.
First stage of thermostat energizes the first stage of the electric
heaters. Second stage of thermostat energizes the second stage
of electric heaters (if installed). Check heating effects at air
supply grille(s).
If electric heaters do not energize, reset limit switch (located on
supply-fan scroll) by pressing button located between termi-
nals on the switch.
To shut unit off, set system selector switch to the OFF position.
Resetting thermostat at a position below room temperature
temporarily shuts unit off until space temperature falls below
thermostat setting.

Ventilation (Continuous Fan)

Set fan and system selector switches at ON and OFF positions, re-
spectively. Evaporator fan operates continuously to provide con-
stant air circulation.

FASTENER TORQUE VALUES

Table 16 — Torque Values
Stator Motor Mounting
Screws
Fan Rotor Mounting
Screws (2.4 HP)
Fan Rotor Mounting
Screws (3 and 5 HP)
Fan Deck Bracket Screws
Fan Casing Screws
Heat Shield Screws
Condenser Motor
Mounting Screws
Condenser Hub Set Screw 84 in.-lb (9.5 Nm) + 12 in.-lb (1.5 Nm)
Compressor Mounting
Bolts
Tandem Rail Mounting
Bolts
Crankcase Heater

START-UP, SYSTEMVU CONTROLS

IMPORTANT: SET-UP INSTRUCTIONS
Installation, wiring and troubleshooting information for the
SystemVu™ Controller.: "48/50FC 04-30, 48/50GC 04-06
Single Package Rooftop Units with SystemVu Controls
Version X.X Controls,
Troubleshooting." Have a copy of this manual available at
unit start-up.
59
50 in.-lb (5.7 Nm) + 5 in.-lb (0.6 Nm)
50 in.-lb (5.7 Nm) + 5 in.-lb (0.6 Nm)
30 in.-lb (3.4 Nm) + 2 in.-lb (0.2 Nm)
50 in.-lb (5.7 Nm) + 5 in.-lb (0.6 Nm)
10 in.-lb (1.1 Nm) + 1 in.-lb (0.1 Nm)
30 in.-lb (3.4 Nm) + 2 in.-lb (0.2 Nm)
30 in.-lb (3.4 Nm) + 2 in.-lb (0.2 Nm)
12 ft-lb (16.2 Nm) + 2 ft-lb (2.7 Nm)
8 ft-lb (10.8 Nm) + 0.5 ft-lb (0.6 Nm)
22.5 in.-lb (2.5 Nm) + 2.5 in.-lb (0.3 Nm)
Start-up, Operation and