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19

Appendix E 

(cont’d)

TERMINAL CONTROL DIAGRAMS

Occupancy control is achieved by connection to the terminal 
interface shown below. These terminals require a dry contact 
which could be provided by a number of types of controls such 
as a timer, light sensor, occupancy sensor, building management 
system, or other.

 The unit will not operate unless these contacts 

are closed!! 

The illustration below shows a factory installed jumper and 
programmable timer option (supplied by others).

Remote fan control can be achieved by connecting dry 
contact controls to the terminal interface at terminals labeled: 
LOW - COM - HIGH. 

These controls could be the following: SPDT switch, dehumidistat, 
CO

2

 sensor, light sensor, timer, building management system, etc., 

supplied by others.

The illustration below represents a switch connected to the unit.

E-3: OCCUPIED TIMER/SENSOR CONNECTION 

(NOT SOLD BY BROAN)

E-4: REMOTE FAN CONTROL

Appendix F

CONTROL BOX ASSEMBLY B6LC AND B12LC

Control cover plate

Control box

Remote control access plate

Remote wiring terminal block

 Unit cabinet

VE0001A

JUMPER

(factory installed)

OCC. CONTROL

(field installed)

NSB Timer

1

M

2

3

4

5

JUMPER

24 (-) VAC

24 (+) VAC

WALL CONTROL

COMMANDE MURALE

NOTE:

Use of 24 VAC circuit

requires isolating contacts

(ex. thermostat) to prevent

interconnection of Class 2

outputs.

Black/Noir

ON-OFF/

MARCHE-

ARRÊT 

LOW

BASSE

COMMON

COMMUN

HIGH

HAUTE

Green/Vert

Red/Rouge

Yellow/Jaune

F

F

CLASS 2 LOW 

VOLTAGE /

CLASSE 2 BASSE 

TENSION

L'utilisation d'un circuit 24 

VCA nécessite des contacts 

isolés (ex. thermostat) pour 

éviter l'interconnexion des 

sorties de Classe 2. 

WALL CONTROL

COMMANDE MURALE

NOTE:

Use of 24 VAC circuit

requires isolating contacts

(ex. thermostat) to prevent

interconnection of Class 2

outputs.

Black/Noir

ON-OFF/

MARCHE-

ARRÊT 

LOW

BASSE

COMMON

COMMUN

HIGH

HAUTE

Green/Vert

Red/Rouge

Yellow/Jaune

F

F

CLASS 2 LOW 

VOLTAGE /

CLASSE 2 BASSE 

TENSION

L'utilisation d'un circuit 24 

VCA nécessite des contacts 

isolés (ex. thermostat) pour 

éviter l'interconnexion des 

sorties de Classe 2. 

JUMPER

REMOTE

LOW

HIGH

FAN SWITCH

WALL CONTROL

COMMANDE MURALE

NOTE:

Use of 24 VAC circuit

requires isolating contacts

(ex. thermostat) to prevent

interconnection of Class 2

outputs.

Black/Noir

ON-OFF/

MARCHE-

ARRÊT 

LOW

BASSE

COMMON

COMMUN

HIGH

HAUTE

Green/Vert

Red/Rouge

Yellow/Jaune

F

F

CLASS 2 LOW 

VOLTAGE /

CLASSE 2 BASSE 

TENSION

L'utilisation d'un circuit 24 

VCA nécessite des contacts 

isolés (ex. thermostat) pour 

éviter l'interconnexion des 

sorties de Classe 2. 

VE0467A

Summary of Contents for B12LC

Page 1: ...Heat Recovery Ventilators and Energy Recovery Ventilators Installation Operation and Service Instructions INSTALLER READ THESE INSTRUCTIONS AND LEAVE THIS MANUAL TO THE END USER VB0002 VB0001 22638 r...

Page 2: ...6 4 Airflow Measurements and Balancing 7 5 Maintenance 7 8 5 1 Bi Monthly Maintenance 7 5 2 Annual Maintenance 8 6 Service 8 9 6 1 Parts Replacement 8 9 6 2 Troubleshooting 9 7 Service Parts 10 11 7 1...

Page 3: ...unit OFF during construction or renovation Do not use the unit when sanding drywall Certain types of dust and vapors may damage the system 2 Please read specification label on product for further info...

Page 4: ...cal building codes regarding the use of rubber straps in commercial buildings Attach the straps to the unit with two no 8 screws provided Then attach the other end of the strap to the ceiling joists t...

Page 5: ...the use smooth radius elbows or square elbows with turning vanes to achieve maximum performance 2 6 Exterior Hoods It is important that the fresh air intake hood be positioned well away from any sourc...

Page 6: ...st damper opens recirculation opening Power connected FF control contacts close during unit ventilation or defrost cycle 3 3 Defrost The unit functions are controlled by integrated controls in the uni...

Page 7: ...a soft cloth and mild cleaning solution Also ensure that the drain fittings are free from dirt and are draining freely WARNING Risk of electric shocks Before performing maintenance always stop the un...

Page 8: ...ld soap Rinse under a heavy stream of water For ERV HM core use a vacuum cleaner or low pressure air jet It is not recommended to use solvents or detergents as these may damage the media or structure...

Page 9: ...CAUSES SOLUTIONS Inside air is too dry Over ventilation speed setting too high Dehumidistat setting is too low Adjust speed setting Set dehumidistat control in a higher position if applicable Persist...

Page 10: ...2 Optional MERV8 Filter for B6LC B2LC unitary Ref Part No Description L SV1808130 PCB Electronic B6LC B12LC SV202382 Thermistor B6LC B12LC SV500025914 Relay SPDT 120 VAC 1 HP 30 A 120 VAC B6LC B12LC S...

Page 11: ...ter Optional MERV 8 B6LC B12LC unitary Ref Part No Description K SV1808130 PCB Electronic B6LC B12LC SV202382 Thermistor B6LC B12LC SV500025914 Relay SPDT 120 VAC 1 HP 30 A 120 VAC B6LC B12LC SV500025...

Page 12: ...r Rubber Vibration Isolator Supplied by others U Channel Supplied by others 3 8 10mm Threaded Rod Supplied by others NOTE Diagrams show standard unit configuration For units with the reversed door opt...

Page 13: ...TION IS REQUIRED FOR REMOVAL OF HEAT RECOVERY CORES FANS ETC THE ACCESS DOOR CAN BE REMOVED FROM CABINET WITH ONLY 2 000 OF CLEARANCE CONTROL PLATE ACCESS DOOR CORE REVERSED DOOR OPTION Center of grav...

Page 14: ...53 12 00 15 00 Access Door Core Reversed Door Option Control Plate A minimum of 12 00 clearance from any obstruction is required for removal of control box A minimum of 15 00 clearance from any obstr...

Page 15: ...NCE FROM ANY OBSTRUCTION IS REQUIRED FOR REMOVAL OF HEAT RECOVERY CORES FANS ETC THE ACCESS DOOR CAN BE REMOVED FROM CABINET WITH ONLY 2 000 OF CLEARANCE EXHAUST AIR SUPPLY AIR FRONT VIEW RIGHT SIDE L...

Page 16: ...of the above diagram A minimum of 12 00 clearance from any obstruction is required for removal of control box A minimum of 15 00 clearance from any obstruction is required for removal of heat recovery...

Page 17: ...aft Damper for recirculation defrost option only Min 12 305 mm Exhaust Air to Outdoors Fresh Air to Building Appendix D DRAIN CONNECTIONS Min 3 76 mm Min 1 25 mm 3 4 NPT coupler Water trap Min 4 102 m...

Page 18: ...r electronic control within the unit to control ventilation sequences This wall control requires a 4 wire connection to the unit as shown below Without the wall control fans can be operated with a rem...

Page 19: ...ER 24 VAC 24 VAC WALL CONTROL COMMANDE MURALE NOTE Use of 24 VAC circuit requires isolating contacts ex thermostat to prevent interconnection of Class 2 outputs Black Noir ON OFF MARCHE ARR T LOW BASS...

Page 20: ...building The tables below gives the heating requirements at different temperatures and airfl ows NOTE The data does not refl ect a reduction in effectiveness due to frosting Based on the standard air...

Page 21: ...N POSITION SETTING 10K Defrost Thermistor Main Electrical Enclosure UCB1 B6LC B12LC Exhaust Defrost Normal Low Speed stop GREEN YELLOW LOW COM HIGH BLACK RED OCC UNOCC REM FAN INTERLOC 9 8 7 6 5 4 3 2...

Page 22: ...L WH R WH Y Y BLACK BLACK RED BLACK YELLOW BLUE BROWN GREEN GREEN YELLOW ORANGE RED WHITE WHITE BLUE WHITE RED WHITE YELLOW YELLOW WIRING COLOR CODE BN BN BN BN 5 6 4 2 3 1 LOGIC DIAGRAM VE0469A Ref 1...

Page 23: ...e UCB1 SYSTEM DIAGRAM ITEM C JU1 OFF B OFF A OFF D ON E ON F ON G ON POSITION SETTING From To J3 9 J3 1 J3 8 J3 9 J3 6 J3 7 J3 8 J3 8 J3 2 J3 8 J3 9 GREEN YELLOW LOW COM HIGH BLACK RED OCC UNOCC REM F...

Page 24: ...K BK R BK Y BL BN G G Y O R WH WH BL WH R WH Y Y BLACK BLACK RED BLACK YELLOW BLUE BROWN GREEN GREEN YELLOW ORANGE RED WHITE WHITE BLUE WHITE RED WHITE YELLOW YELLOW WIRING COLOR CODE LOGIC DIAGRAM BN...

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