Maintenance - Broan HRV90H Series Installation Instructions Manual

9.

MAINTENANCE

Risk of electric shocks. Before performing any maintenance or servicing, always disconnect the unit from its
power source.
Since this guide covers both HRV and ERV units, top and side ports, the illustrations shown in the maintenance procedures are typical.
The following procedures applies for both HRV and ERV units.
Refer to pictures below to identify the inner parts of your unit.
VB0078
1) HRV C
2) C
9.1 S -A M
EMI NNUAL AINTENANCE
1. Unplug the unit.
Be careful before opening the door; water or small debris could fall out. For HRV unit, always wait one minute after
disconnecting the unit before opening the door in order to allow water to drain out from the unit.
2. Unlatch the door and open it. Clean the inner side of the door with a damp cloth, then wipe with a
dry one. Disengage the door from its hinge by sliding it from left to right and set aside.
Always hold the core when rotating the 2 core retainers; failure to do so will cause the core to fall out.
3. Lift both foam filters bracket (1) and remove the foam filters from the core. While holding
the core, rotate the 2 core retainers (2) and slide out the core from the unit.
3
4
2
1
3) F
ORE OAM FILTER BRACKETS
4) F
ORE RETAINERS OAM CORE FILTERS
!
WARNING
3
3
2
1
VB0077
1) ERV C
2) C
ORE RETAINERS
!
WARNING
!
WARNING
22
4
2
2
3) F
ORE OAM FILTER BRACKETS
4) F
OAM CORE FILTERS
VD0005
VD0179
1
2
VD0177
3
1