NOTE: Read the entire instruction manual before starting the
installation.
This symbol → indicates a change since the last issue.
Index Page
SAFETY CONSIDERATIONS .....................................................2
INTRODUCTION ..........................................................................2
LOCATION....................................................................................2
Inspect Equipment ....................................................................2
Select Location..........................................................................2
UNIT INSTALLATION.............................................................2-3
Mount Unit................................................................................2
Independent System Application..............................................2
Forced-Air Application.............................................................3
Connect Ducts to HRV.............................................................3
Condensate Drain......................................................................3
Locate and Install Exterior Hoods ........................................3-4
COMPONENT DESCRIPTION ....................................................5
WALL CONTROL ........................................................................6
Location.....................................................................................6
Basic Control Operation ...........................................................6
Standard Control Operation......................................................6
Automatic Control Operation ...................................................6
Wiring........................................................................................7
Humidity Selector .....................................................................7
ELECTRICAL CONNECTIONS...............................................7-8
115-vac Wiring .........................................................................7
12-vdc Wiring ...........................................................................7
ACCESSORIES..............................................................................8
Interlock Relay..........................................................................8
20 Minute Timer.......................................................................8
60 Minute Adjustable Timer ....................................................8
BALANCING HRV................................................................10-11
Balancing Dampers.................................................................10
Flow Collars............................................................................11
VENTILATION EVALUATION ................................................13
Method 1 .................................................................................13
Method 2 .................................................................................13
CONTROL BOARD OPERATION ............................................13
Board Function........................................................................13
Defrost.....................................................................................13
Off and Intermittent/Off Mode...............................................13
High-Speed Air Exchange ......................................................13
Low-Speed Air Exchange.......................................................13
CARE AND MAINTENANCE...................................................14
Door .........................................................................................14
Filter ........................................................................................14
Blower Motor and Wheel.......................................................14
Cleaning the Core ...................................................................14
TROUBLESHOOTING ..........................................................14-17
Wall Control............................................................................14
Control Board..........................................................................14
Blower Motor..........................................................................14
Blower Speed Selection..........................................................15
Defrost.....................................................................................16
Control Module Jumpers ........................................................16
Error Signaling ..................................................................16-17
WIRING DIAGRAMS ...........................................................18-19
DIMENSIONAL DRAWINGS ..............................................20-22
Fig. 1—HRVBBLHU Conventional Unit
A99271
Fig. 2—HRVBBSVU Compact Unit
A92268
Fig. 3—HRVBBLVU High Efficiency Unit
A92377
installation, start-up,
and operating instructions
HEAT RECOVERY
VENTILATOR
Cancels: II HRV-71-2 II HRV-71-3
6-05
HRVBBLHU,
HRVBBSVU,
HRVBBLVU
—1—
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