Table of Contents
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NOTE: Read the entire instruction manual before starting the
installation.
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Index
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
installation, start-up,
and operating instructions
HEAT RECOVERY
VENTILATOR
Page
-1-
Cancels: II HRV-71-2
DIMENSIONAL DRAWINGS ..............................................20-22
Fig. 1-HRVBBLHU Conventional Unit
Fig. 2-HRVBBSVU Compact Unit
Fig. 3-HRVBBLVU High Efficiency Unit
HRVBBLHU,
HRVBBSVU,
HRVBBLVU
II HRV-71-3
6-05
A99271
A92268
A92377
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Table of Contents
Related Manuals for Bryant HRVBBLHU
Summary of Contents for Bryant HRVBBLHU
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Page 1: Table Of Contents
Forced-Air Application.............3 Connect Ducts to HRV.............3 Condensate Drain..............3 Locate and Install Exterior Hoods ........3-4 COMPONENT DESCRIPTION ............5 A99271 WALL CONTROL ................6 Fig. 1—HRVBBLHU Conventional Unit Location..................6 Basic Control Operation ............6 Standard Control Operation............6 Automatic Control Operation ...........6 Wiring..................7 Humidity Selector ..............7 ELECTRICAL CONNECTIONS..........7-8... -
Page 2: Safety Considerations
SAFETY CONSIDERATIONS UNIT INSTALLATION Installation and servicing of this equipment can be hazardous due CAUTION: UNIT DAMAGE HAZARD to mechanical and electrical components. Only trained and quali- Failure to follow this caution may result in reduced life of fied personnel should install, repair, or service this equipment. this unit. -
Page 3: Forced-Air Application
NOTE: Balancing dampers should be installed in stale air exhaust and fresh air intake ducts before connecting to the HRVBBSVU and the HRVBBLVU units. The balancing dampers are provided in the HRVBBLHU units (see balancing HRV section). V. CONDENSATE DRAIN To connect condensate drain, proceed as follows: 1. - Page 4 6 FEET 18 IN. FURNACE 6 IN. 6 IN. INSULATED DUCT CONNECTING FRESH AIR & EXHAUST TO OUTSIDE NOTE: SUPPLY & EXHAUST DUCTS TO HAVE BALANCING DAMPERS (ON COLD SIDES) (SEE STEP 4-CONNECT DUCTS TO HRV) REAR INLET HOOD 6 FEET EXHAUST HOOD 18 IN.
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Page 5: Component Description
High-Efficiency Unit The following listed items are components of HRVBBSVU and HRVBBLVU (See Fig. 9 and 10). COMPONENT DESCRIPTION The following listed items are components of HRVBBLHU (See 1. Stale air return from building connected to return-air duct Fig. 8). system. -
Page 6: Wall Control
WALL CONTROL 4. Next push of mode button puts system in circulation mode. HRV operates in high speed at all times. Circulation LED I. LOCATION remains on. When there is a call for dehumidification, The HRV wall controls are unique to HRV and must be installed exchange LED is on and HRV exchanges air with outside. -
Page 7: Wiring
TABLE 2—STANDARD CONTROL AIR EXCHANGE MODE DEHUMIDISTAT POSITION OPERATION DAMPER POSITION FAN SPEED Closed to outside Satisfied Open to outside Call for dehumidification Air exchange with outside Open to outside High Satisfied Air exchange with outside Closed to outside Intermittent Call for dehumidification Air exchange with outside Open to outside... -
Page 8: Accessories
WALL CONTROL MODE CONTROL CONNECTOR AIR EXCHANGE MAINTENANCE ´ ECHANGE D´AIR BLACK % HUM. RELATIVE HUM. EXT. TEMP. EXT. 10°C/50°F 0°C/32°F GREEN –10°C/14°F –20°C/–4°F YELLOW % D´HUMIDITE RELATIVE HUMIDITY ´ A98410 Fig. 12—Control Connections ACCESSORIES NOTE: The 20 minute timer will not function properly unless I. - Page 9 9-PIN AMP PLUG THERMOSTAT TERMINALS FOUR WIRE TWO-WIRE HEATING ONLY INTERLOCK RELAY 120V FROM 115V FIELD- FURNACE SUPPLIED AUXILIARY FUSED J-BOX CONDENSING DISCONNECT UNIT NOTE: Connect Y-terminal as FURNACE WIRE shown for proper operation. TERMINAL BLOCK A05044 → Fig. 13—Interlock Relay Wiring Layout ELECTRONIC CONTROL THE WIRES FROM THE SWITCH BOARD...
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Page 10: Balancing Hrv
(See Fig. 17). Both flow collars and Balancing dampers (some times called butterfly dampers) are magnehelic gage are included in the accessory start-up balancing provided with the HRVBBLHU. The dampers for the HRVBB- kit. SVU and HRVBBLVU are field supplied and should be perma-... -
Page 11: Flow Collars
TO BUILDING FROM BUILDING 16°C 22°C 61°F 72°F FRESH AIR TO BUILDING 20°C A98403 68°F Fig. 18—HRVBBLHU and HRVBBSVU A98404 Cross Flow Fig. 19—HRVBBLVU Counterflow STALE AIR TO OUTSIDE FRESH AIR FROM OUTSIDE STALE AIR STALE AIR FRESH AIR FILTERED AIR... - Page 12 FILTERED AIR FRESH AIR FRESH AIR TO BUILDING TO BUILDING FROM OUTSIDE STALE AIR FROM BUILDING STALE AIR STALE AIR FROM BUILDING TO OUTSIDE A92383 A92382 Fig. 23—HRVBBSVU Airflow During Fig. 22—HRVBBSVU Airflow During Recirculation and Defrost Air Exchange STALE AIR FILTERED AIR FRESH AIR FROM BUILDING...
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Page 13: Ventilation Evaluation
WASH- WASH- WASH- ROOM ROOM BEDROOM LAUNDARY ROOM KITCHEN ROOM MASTER LIVING ROOM BEDROOM BEDROOM DINING ROOM FAMILY ROOM BEDROOM 1320 sq ft (125 sq m) 1320 sq ft (125 sq m) BASEMENT 1320 sq ft (125 sq m) A98388 Fig. -
Page 14: Care And Maintenance
CARE AND MAINTENANCE CAUTION: CUT HAZARD Failure to follow this caution may result in personal WARNING: ELECTRICAL SHOCK HAZARD injury. Failure to follow this warning could result in personal Sheet metal parts may have sharp edges or burrs. Use care injury or death. -
Page 15: Blower Speed Selection
TABLE 5—TROUBLESHOOTING CHART SYMPTOMS CAUSES SOLUTIONS Continuous exchange mode Use Intermittent Mode Air too humid used in small houses Check humidity level settings Unit will operate when not in defrost mode. Defrost condition is in effect Defrost cycle is based on outdoor ambient (see Outdoor temperatue is below 23°F Table 10) Unit not responding to wall control... -
Page 16: Defrost
V. DEFROST 4. Defrost should start within 2 minutes after high-speed exchange has been initiated. Defrost cycle is controlled by a thermistor which is located in the fresh-air intake passage (the thermistor unit is connected to J4 of 5. After test unplug unit. control module (See Fig. - Page 17 TABLE 13—BACK MODE WALL CONTROL MODES BACKUP MODE INTERMITTENT LOW-SPEED EXCHANGE HIGH-SPEED EXCHANGE TYPE 2—COMMUNICATION PROBLEM OR UNSUP- PORTED MODE (AUTO MODEL ONLY) All indicators flashing at a rate of about once every 8 sec. Communication is not properly entered or is not working. A.
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Page 18: Wiring Diagrams
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- Page 23 SERVICE TRAINING Packaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, including: • Unit Familiarization • Maintenance • Installation Overview • Operating Sequence A large selection of product, theory, and skills programs is available, using popular video-based formats and materials.
- Page 24 © 2005 Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231 —24— Printed in U.S.A. hrv713 Catalog No. II HRV-71-3...