Condenser Fans And Motors; Return- -Air Filters; Outdoor- -Air Inlet Screens; Accessory Installation - Carrier 48LC Series Controls, Start-Up, Operation And Troubleshooting

IMPORTANT: The IDF Maximum Fan Speed (MAXIMUM
IDF SPEED) RPM must not produce a supply CFM that is
lower than the minimum CFM allowed in the product data for
heating and cooling.

Condenser Fans and Motors

Condenser fans and motors are factory set.

Return- -Air Filters

Check that correct filters are installed in filter tracks (see Physical
Data table in unit Product Data). Do not operate unit without
Fig. 5 - - 48/50LC Size 04- -06 Units, Panel and Filter Locations (48LC*04 Unit Shown)
Fig. 6 - - 48/50LC Size 07 Units, Panel and Filter Locations (48LC*07 Unit Shown)
CONTROL BOX
AND GAS SECTION
ACCESS PANEL
UNIT FRONT
INDOOR
BLOWER
ACCESS
PANEL
CONTROL BOX
AND GAS SECTION
ACCESS PANEL
UNIT FRONT
return-air filters. Determine the filter change run time (DIRTY
FILTER TIME) to be set in the quick setup configurations menu.

Outdoor- -Air Inlet Screens

Outdoor-air inlet screens must be in place before operating unit.

Accessory Installation

Check to make sure that all accessories including space thermostats
and sensors have been installed and wired as required by the
instructions and unit wiring diagrams.
INDOOR
BLOWER
ACCESS
PANEL
FILTER
ACCESS PANEL
FILTER
ACCESS PANEL
7
INDOOR COIL
ACCESS PANEL
UNIT BACK
a48--- 9937
INDOOR COIL
ACCESS PANEL
UNIT BACK
C14321