Appendix E - Terminal Control Diagrams - Broan B6LC Installation, Operation And Service Instructions

E-1: TERMINAL LABEL
A low voltage remote control wiring interface is provided on
the unit. The connections for the low voltage remote wiring are
located on two terminals adjacent to the exhaust fan outlet (or
adjacent to the supply fan outlet on the B1600705 unit). All fi eld
installed wiring must be low voltage class II.
R W C
EMOTE ALL ONTROL
Optional wall control requires a 4 wire LVT-24 gauge (or
equivalent). This remote wall control runs on 12 VDC.
L V C
OW OLTAGE ONTROLS
All other terminals are dry contacts.
Low Voltage terminal control consists of the following:
W C
ALL ONTROL
4 wire LVT 24 gauge minimum
O (N
CCUPIED IGHT SET BACK
24 VAC, needs dry contact
LOW - COM - HIGH
Remote fan switching requires a single pole, double throw switch
(SPDT)
F I R O
AN NTERLOCK ELAY UTPUT
Dry contact closes on ventilation or defrost. Used to control
external fan.
WALL CONTROL
COMMANDE MURALE
Black/Noir
Red/Rouge
ON-OFF/
MARCHE-
ARRÊT
CLASS 2 LOW
F
F
CLASSE 2 BASSE
NOTE:
Use of 24 VAC circuit
requires isolating contacts
(ex. thermostat) to prevent
interconnection of Class 2
outputs.
L'utilisation d'un circuit 24
VCA nécessite des contacts
isolés (ex. thermostat) pour
éviter l'interconnexion des
sorties de Classe 2.
VE0466A
TERMINAL CONTROL DIAGRAMS
) T /S
IMER ENSOR
(FF)
Green/Vert
Yellow/Jaune
LOW
BASSE
COMMON
COMMUN
HIGH
HAUTE
VOLTAGE /
TENSION
Appendix E
E-2: WALL CONTROL CONNECTION
One type of remote wall control is available: the Slide Switch Wall
Control with fan switch and dehumidistat control.
The remote wall controls work with the microprocessor 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 remote fan
switch as shown in Appendix E-4.
NOTE:
When using a wall control, never use the the LOW, COMMON and
HIGH terminals.
COMMANDE MURALE
Black/Noir
Red/Rouge
ON-OFF/
MARCHE-
ARRÊT
F
F
NOTE:
Use of 24 VAC circuit
requires isolating contacts
(ex. thermostat) to prevent
interconnection of Class 2
outputs.
L'utilisation d'un circuit 24
VCA nécessite des contacts
isolés (ex. thermostat) pour
éviter l'interconnexion des
sorties de Classe 2.
18
WALL CONTROL
Green/Vert
Yellow/Jaune
LOW
BASSE
COMMON
COMMUN
HIGH
HAUTE
CLASS 2 LOW
VOLTAGE /
CLASSE 2 BASSE
TENSION
Wall
Control