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Installation & Operating Manual

ENERVEX 3903002, Installation & Operating Manual

The ENERVEX 3903002 is a high-quality ventilation product designed for superior performance. Ensure a seamless installation and optimized operation with the included Installation & Operating Manual. Download this comprehensive manual for free from our website. Follow step-by-step instructions to maximize the efficiency and functionality of your ENERVEX 3903002.

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3903002 06.16

Installation & Operating Manual

ENERVEX

OPS OVER PRESSURE SWITCH

ENERVEX Inc.

1685 Bluegrass Lakes

Parkway

Alpharetta, GA 30004

USA

P: 770.587.3238

F: 770.587.4731

T: 800.255.2923

info@enervex.com

www.enervex.com

READ AND SAVE THESE INSTRUCTIONS!

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Summary of Contents for 3903002

Page 1: ...n Operating Manual ENERVEX OPS OVER PRESSURE SWITCH ENERVEX Inc 1685 Bluegrass Lakes Parkway Alpharetta GA 30004 USA P 770 587 3238 F 770 587 4731 T 800 255 2923 info enervex com www enervex com READ AND SAVE THESE INSTRUCTIONS ...

Page 2: ...y this manual Please refer to these component s individual manuals TO REDUCE THE RISK OF FIRE ELECTRICAL SHOCK OR INJURY TO PERSONS OBSERVE THE FOLLOWING 1 Use this unit in the manner intended by the manufacturer If you have questions contact the manufacturer at the address or telephone number listed on the front of the manual 2 Before servicing or cleaning the unit switch off at service panel and...

Page 3: ...hile the EBC 31 control unit drives the damper completely open to relieve the pressure The differential pressure acts via diaphragm against the force of setting spring on the microswitch The pressure switch operates without any auxiliary power The OPS monitors differential pressure in firing and venitlation systems The switch is suitable for air flue and exhaust gases and can be mounted in the hor...

Page 4: ...C Max Pressure 1 4 PSI 100 mbar Conduit Connection 1 4 Solderless Quick Connect Terminals Pressure Connections Two plastic tubes OD 1 4 6 0mm Weight 0 4lb 0 2 kg Housing NEMA 3 IP 54 1 2 NPT Connection COM 3 P p 1 NC 2 NO OPS Switching Function As pressure rises 1 NC opens 2 NO closes As pressure falls 1 NC closes 2 NO opens Deduct 0 08 inW C 20 Pa from the pressure setting if switch is mounted ho...

Page 5: ...g to the stack probe and the port marked P1 and IMPORTANT REMOVE THE PROTECTIVE CAP ON THE PORT MARKED P2 AND THE SWITCH WILL NOT WORK PROPERLY UNLESS IT HAS BEEN REMOVED 3 2 INSTALLATION OF STACK PROBE FOR OPS Install the stack probe for the OPS in the stack between the boiler outlet and the damper The probe must be located so the distance A is at least 3 vent diameters downstream damper The prob...

Page 6: ...oint above normal start up and transition pressures to avoid nuisance trips NOTE On applications where a positive pressure is being maintained a delay timer should be installed to avoid nuisance trips 0 8 0 2 0 0 0 72 1 80 0 64 160 0 56 140 0 4 8 12 0 0 40 1 00 0 3 2 8 0 0 24 60 0 16 4 0 0 0 8 2 0 in WC Pascal Typ 930 80 Use terminals 1 3 for Normally Closed NC 3 2 1 Fig 3 Fig 4 Set Point Indicato...

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