AFS GREYSTONE | Alldatasheet
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PRINTED IN CANADA Copyright © Greystone Energy Systems Inc. All Rights Reserved www.greystoneenergy.com PS-AFSXXX-02 03/20 Greystone Energy Systems, Inc.
150 English Drive, Moncton,
New Brunswick, Canada E1E 4G7 Ph: +1 (506) 853-3057 Fax: +1 (506) 853-6014 North America: 1-800-561-5611 E-mail: mail@greystoneenergy.com DIFFERENTIAL PRESSURE SWITCH AFS SERIES Manual Reset Control or Alarm PRODUCT DESCRIPTION The plated housing contains a diaphragm, a calibration spring and a snap-acting SPDT switch. The sample connections located on each side of the diaphragm accept 6.35mm (0.25”) OD tubing via the integral compression ferrule and nut or barbed fitting. An enclosure cover guards against accidental contact with the live switch terminal screws and the set point adjusting screw. The enclosure cover will accept a 12.7mm (0.5”) conduit connection. Optional pressure ranges and manual resets available. ALARM OR CONTROL To prove excessive airflow or pressure To prove insufficient airflow or pressure To prove insufficient airflow or pressure (AFS-460). SAMPLE MEDIA Air MOUNTING POSITION Diaphragm in any vertical plane set point, to approx. 0.8” W.C. at maximum set point set point, to approx. 0.1” W.C. at maximum set point minimum set point, to approx. 0.8” W.C. at maximum set point MAXIMUM PRESSURE 0.03 BAR (0.5 PSI) OPERATING TEMP RANGE -40 to 82°C (-40 to 180°F) LIFE AFS-222/262: 100,000 cycles at 0.5 PSI max pressure each cycle and at max electrical load AFS-460: 6000 cycles at 0.5 PSI max pressure each cycles and at max electrical load ELECTRICAL RATING 300 va pilot duty at 115 - 277 Vac, 10 amp, non-inductive, 277 Vac, 60Hz CONTACT ARRANGEMENT AFS-222/262: SPDT AFS-460: SPDT-NC ELECTRICAL CONNECTIONS Screw top terminals with cup washers CONDUIT CONNECTIONS 0.875” opening accepts ½” conduit SAMPLE LINE CONNECTIONS Ferrule and nut compression type connectors that accept 6.35mm (0.25”) OD rigid tubing -112: 1/4” OD barbed connector RESET AFS-222/262: Automatic AFS-460: Manual APPROVALS AFS-222/262: UL, FM, CSA AFS-460: UL, CSA, CE SPECIFICATIONS PRODUCT AFS- Adjustable Differential Pressure Switch RANGE 222-316 222-112-316 262-316 262-112-316 460 460-112 ORDERING AFS- PART NUMBER NOTE: Greystone Energy Systems, Inc. reserves the right to make design modifications without prior notice. 83mm (3.25”) 93mm (3.875”) 71mm 2.813” 156mm 6.125” 49mm 1.938” 5mm (0.188”)
2 REQ’D
ø 41mm 1.625” 83mm (3.25”) 11mm (0.438”) 20mm (0.781”) HIGH PRESS INLET LOW PRESS INLET 18mm (0.71”) 35mm 1.375” 1/4” OD Barbed Connector suitable for flexible tubing -112 Option