Broan HRV120S User Guide

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3. MAINTENANCE (CONT’D)

3.2 ANNUAL MAINTENANCE

Repeat steps  and  from the Quarterly Maintenance (Section 3.1). Then, proceed

as follows:

Always hold the core when rotating the

two core retainers; failure to do so will

cause the core to fall out.

WARNING

 Lift both foam filter brackets  and

remove the foam filters from the core.

While holding the core, rotate the 2 core

retainers  and slide out the core from

the unit.

VD0177





 Clean the inside walls of the unit with a clean damp cloth, then wipe with a clean dry one.

 Wash the 2 core filters under hot water with mild soap. Rinse thoroughly and let dry

completely before reinstalling on the core.

 Heat recovery core: Allow the core to soak for 3 hours in a solution of warm water

and mild soap (liquid soap). Rinse lightly, let dry and reinstall.

Energy recovery core: Remove the dust on the core using a vacuum cleaner and a soft

brush attachment.

Once the core reinstalled in the unit, always rotate both core retainers to their

initial position; failure to do so will cause the core to fall out.

WARNING

 Slide the core in the unit. Secure the

core by rotating both core retainers to

their initial position.

VB0078

VD0078

NOTE: Once the core reinstalled in the

unit, the arrows (circled in picture

below) on its sticker label must be

pointing towards the unit motors.

 Reinstall both foam filters and secure them to the core by pulling down the 2 foam

filter brackets. Reinstall the door.

 Close the door and plug the unit.

NOTE: The unit will return to its previous setting after a 30-second delay for boot

sequence.

 Clean the exterior hood(s).

Do not soak the energy recovery core in water. This core can easily be damaged

especially if it is soaked.

CAUTION

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Broan HRV120S Compact Flex Series High Efficiency Heat Recovery Ventilator, 115 CFM at 0.4 in. w.g