The 8351 Furnace Pressure Controller, in conjunction with a 
dp transmitter, provides stable furnace pressure and manual/
automatic station functions.

8351-C relay outputs are used to drive interposing relays which 
can interface with a variety of output actuators such as electro-
hydraulic valves, solenoid valves, or bi-directional motors. 
A second 4-20 mA PID output is also included to position a 
4-20mA control motor or linear actuator.

Furnace pressure control is generally used to maintain a 
slightly positive pressure, providing:

—

 improved product quality

—

 maintenance savings by preventing excessive fl uing  

    through cracks and doors and also reduces "stingers"

—

 elimination of cold air infi ltration, preventing load cold    

    spots

—

 prevention of furnace atmosphere contamination

The 8351-C-C-2013 input is fully confi gurable to match any input 
scaling requirements.

Operating Temperature Range:

 0 to 149°F (–18 to 65°C).

Power Requirements:

 120 V ac 50-60 Hz (102-132 V ac) at 15 VA 

exclusive of connected load.

Output Load Limits:

 1.2 amps maximum at 120 V ac; 50 mA 

minimum.

Size:

1⁄8

" DIN horizontal, 2.10" H × 3.95" W × 4.00" D.

Panel Cutout:

 1

25⁄32

" × 3

5⁄8

" (

1⁄8

DIN)

Weight:

 .32 lb.

Protection Class:

 NEMA 4X

SPECIFICATIONS

Product Overview | 8351 Furnace Pressure Controller

•  An optional 24 V dc power supply is available

NOTE: When replacing an EPIC II controller, an external      
24 V dc power supply is required.

Bulletin 8351C-2013

Page 2

To Order, choose from one of the following part numbers:
R860-4533

 This 

specifi es the controller only.

8351-C-2013

 This 

specifi es the controller and mounting  

adapter plate for replacing the old style  

 8351C.

8351-C-2013-PS

 This 

specifi es the controller, mounting    

adapter plate for replacing the old style  

8351C and a 24 V dc power supply.

DIMENSIONS inches

8½  

9

3½  

3