Sargent 351 EHT Series

Introduction

The EHT Series of Electromechanical Closer-Holder Release Devices is designed to hold open fire rated doors until power is interrupted by a fire alarm condition or remote release switch. With its rugged track design, the 351 EHT is suitable for multiple manual operations. It is also applicable for non-rated doors such as offices or conference rooms, where the convenience of an electrically controlled closer-holder device may be desirable. Designed for easy installation in Pull, Push and Double Egress applications, the non-handed track, closer body and dual voltage input makes it easy to specify and install. Common applications are cross corridor and stairwell doors. An auxiliary door stop is required at hold open point. The EHT includes an ANSI/BHMA A156.4 Grade 1 hydraulic door closer and operates as one during the opening and closing cycles.

Features and Benefits

• Exceeds ANSI/BHMA A156.15 requirements for manual/forced release from hold open
• Ideal for facilities with existing fire detection systems
• Conforms to standards UL 10C and UBC 7-2 (1997), Positive Pressure Fire Tests of door assemblies
• UL Listed and cUL Listed to Canadian Safety Standards listed for use on fire doors
• Available in 5 finishes

Holder:

• Fail Safe operation
• Single point hold open adjustable from 85° to 110°
• Adjustable holding force for easy pull or push out of hold open
• Push, pull or double egress installations
• Thin track design fits on 1-5/8" (41mm) frame (pull side application)
• One piece aluminum track
• For interior doors up to 48" (1219mm) wide
• Non-handed track prepared for both concealed and surface wiring
• Dual voltage: 24 VDC or VAC @ .1 Amp.
• Terminal strip for ease of wiring
• Maintained on/off switch
• Self-resetting fuse on circuit boards
• 2 year limited warranty on electromechanical track assembly

Closer:

• SARGENT 351 ANSI/BHMA A156.4 Grade 1 Closer
• Body is cast, one piece high strength aluminum/silicon alloy
• 1-1/2" (38mm) piston
• Full size 1/8" (3mm) brass adjusting valves
• Adjustable spring power
• Adjustable door speed valve
• Adjustable latch speed valve
• Adjustable backcheck valve (Auxiliary door stop required)
• Optional delayed action valve
• Machine and wood screws provided for 1-3/4" (44mm) thick doors
• High impact, non-handed, non-corrosive cover
• Optional non-handed metal cover
• Cover projection 2-3/16" (56mm)
• 10 year limited warranty on closer body

Mounting Details

• Hold open adjustable from 85° to 110°
• 12 gauge reinforcements required for metal doors and frames
• Minimum stop width of 1-7/16" (36mm) for push applications
• 351-A Mounting Plate may be used for door with narrow top rail (pull application); order separately as 351-A x finish
• 351-D Drop Bracket may be used for door with narrow top rail (push application); order separately as 351-D x finish

Pull Side Track Mounting

• Track mounted to face of frame
• 351 closer is mounted on hinge side of door
• Use on corridor or when pull side, single-point hold open is required
• Non-handed

Push Side Track Mounting

• Track mounted to underside of the frame stop
• 351 closer is mounted to stop side of door
• Use on corridor or stairwell doors where push side, single-point hold open is required
• Non-handed

Pull Side Double Egress Mounting

• Track mounted to face of frame
• 351 closer is mounted to hinge side of door
• Use on double egress openings when pull side hold open is required
• Double egress arm for reveal of 1/8" to 3" (3mm to 76mm) maximum
• Unit is handed

24VDC Power Supplies

• UL Class 2 Listed
• Four 24V models available
• Integral battery charging capability keeps sealed lead acid gel/cell at full charge in case of line voltage failure (737-battery sold separately)
• Fused line voltage input with one, four, or eight DC outputs (depending on model)
• Each circuit can be individually turned on and off via a slide switch; the power status of each is shown by an LED
• In the event of a DC short the problem is confined to the zone of difficulty
• Fire alarm interface standard