ENERVEX
®
BDC 8 FAN CONTROL
ENERVEX Inc.
1685 Bluegrass Lakes Parkway
Alpharetta, GA 30004
USA
P: 770.587.3238
F: 770.587.4731
T: 800.255.2923
[email protected]
www.enervex.com
3912052 02.16
Product Information
Specifications are subject to change without notice.
Use
The BDC 8 Appliance Draft Control is used to control draft in
systems where modulation is not required. It controls the speed of
the fan to maintain proper pressure in the chimney. The BDC8 is for
indoor installations only. The control can be used with Models RSV,
IPVB and RSIF Fans.
The BDC 8 is typically used to control the draft of a gas-fired water
heater, boiler or furnace.
Description
The BDC 8 operates a chimney fan or draft inducer at a set speed
to create and maintain proper mechanical draft at the outlet of a
heating appliance(s). The control provides a 10-120 VAC signal
to single phase fans, as well as a 0-10 VDC signal that can be
interpretted to control 3-phase fans by a variable frequency drive.
The BDC 8 comes with an external PDS. The PDS is a NO/
NC switch that monitors the pressure in the chimney. In case of
inadequate draft, the PDS will open, and if open for 15 seconds, the
control will go into alarm mode and lock out the appliance until proof
is restored.
The control features a manual and automatic adjustment mode
which is selected via dipswitch. The PDS check function and manual
or automatic reset function are also selected through a dipswitch.
An integrated damper relay allows a damper to be connected
directly to the BDC 8. The control ensures that the damper is fully
open before allowing the appliance to operate by interlocking the
damper end-switches to the control. In the event that the controller
senses any mechanical failures, the control will initiate a retry
sequence.
Material
The enclosure is made of NEMA 1 rated ABS plastic.
Standard Equipment
• ADC 100 Control Box
• PDS Proven Draft Switch Box
• Stack Probe
• 6' Silicone Tubing
Listings
The BDC 8 Fan Control is ETL Listed in the U.S. and Canada:
• UL 378 Standard for Draft Equipment
• UL 60947 Standard for Industrial Control Equipment
• CSA C22.2 No. 14-05 Standard for Industrial Control Equipment
Warranty
2-Year Factory Warranty.
