Supply Fan (Blower) Section; Supply Fan (Direct-Drive) - Carrier 50FC 08-16 Series Service And Maintenance Instructions

Single package rooftop electric cooling unit with puron (r-410a) refrigerant 7.5 to 15.0 nominal tons

Table of Contents

To remove the filters:

Grasp the bottom flange of the upper panel.

Lift up and swing the bottom out until the panel disen-

gages and pulls out.

Reach inside and extract the filters from the filter rack.

Replace these filters as required with similar replacement

filters of same size.

To re-install the access panel:

Slide the top of the panel up under the unit top panel.

Slide the bottom into the side channels.

Push the bottom flange down until it contacts the top of

the lower panel (or economizer top).

OUTSIDE AIR HOOD

Outside air hood inlet screens are permanent aluminum-mesh

type filters. Check these for cleanliness. Remove the screens

when cleaning is required. Clean by washing with hot low-pres-

sure water and soft detergent and replace all screens before re-

starting the unit. Observe the flow direction arrows on the side of

each filter frame.

ECONOMIZER INLET AIR SCREEN

This air screen is retained by filter clips under the top edge of the

hood. (See Fig. 5.)

17-1/4"

Divider

Cleanable

Aluminum

Filter

Barometric

Relief

Fig. 5 — Filter Installation

To remove the filter, open the filter clips. Re-install the filter by

placing the frame in its track, then closing the filter clips.

MANUAL OUTSIDE AIR HOOD SCREEN

This inlet screen is secured by a retainer angle across the top edge

of the hood. (See Fig. 6.)

Outside

Air

Hood

Filter

Clip

Screws

Fig. 6 — Screens Installed on Outdoor-Air Hood

To remove the screen, loosen the screws in the top retainer and slip

the retainer up until the filter can be removed. Re-install by plac-

ing the frame in its track, rotating the retainer back down, and

tightening all screws.