Installation Manual

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AL176ULX - 1 -

Overview:

AL176ULX is a power-limited power supply/charger that converts a 115VAC / 60Hz input into 12VDC or 24VDC output

(see specifications). It is intended for use in applications requiring UL Listing for Access Control (UL 294). It must be

installed in accordance with National and Local Electrical Codes and Regulations.

Specifications:

Power Supply Output Specifications:

Output VDC Switch Position Max. Stand-by Load DC Max. Alarm Load DC Battery (optional)

12VDC Jumper Removed 1.75 amp 1.75 amp 12VDC

24VDC Jumper On 1.75 amp 1.75 amp 24VDC

Stand-by Specifications:

Output 4 hr. of Stand-by & 5 Minutes of Alarm

12VDC / 7 AH Battery Stand-by = 1.25 amp

24VDC / 7 AH Battery Alarm = 1.25 amp

Installation Instructions:

Wiring methods shall be in accordance with the National Electrical Code/NFPA 70/NFPA 72/ANSI, and with all local

codes and authorities having jurisdiction. Product is intended for indoor use only.

See Terminal Identification Chart on Pg. 3 for a description of each terminal function.

1. Mount unit in the desired location. Mark and predrill holes in the wall to line up with the top two keyholes in the

enclosure. Install two upper fasteners and screws in the wall with the screw heads protruding. Place the enclosure’s

upper keyholes over the two upper screws; level and secure. Mark the position of the lower two holes. Remove the

enclosure. Drill the lower holes and install three fasteners. Place the enclosure’s upper keyholes over the two

upper screws. Install the two lower screws and make sure to tighten all screws (Enclosure Dimensions, pg. 3).

Secure enclosure to earth ground.

2. Connect AC power to the black and white flying leads of the transformer. Secure green wire lead to earth ground.

Use 18 AWG or larger for all power connections (Battery, AC input). Use 22 AWG to 18 AWG for power-limited

circuits (DC output, AC FAIL and LOW BAT supervisory relays).

Keep power-limited wiring separate from non power-limited wiring (115VAC / 60Hz Input, Battery Wires).

Minimum 0.25” spacing must be provided.

CAUTION: Do not touch exposed metal parts. Shut branch circuit power before installing or servicing equipment.

There are no user serviceable parts inside. Refer installation and servicing to qualified service personnel.

3. Set the AL176ULX to the desired DC output voltage by either removing or leaving jumper.

(Power Supply Output Specification Table).

AL176ULX

Access Control Power Supply/Charger

Agency Listings:

• ULListedforAccessControlSystems(UL294).

CUL Listed - CSA Standard

C22.2 No.205-M1983, Signal Equipment.

• MEAapproved-NYCDept.ofBuildings.

Input:

• Input115VAC/60Hz,0.6amp.

Output:

• Fieldselectable12VDC or 24VDC output.

•1.75ampsupplycurrent.

• Class 2 Rated power-limited output.

• PTCprotectedoutputs,rated@2.5amp.

• Filteredandelectronicallyregulatedoutput.

• Shortcircuitandthermaloverloadprotection.

Battery Backup:

• Built-inchargerforsealedleadacidorgeltypebatteries.

• Automaticswitchovertostand-bybatterywhenACfails.

• Maximumchargecurrent0.4amp.

Supervision:

• ACfailsupervision(form“C”contacts).

• Lowbatterysupervision(form“C”contacts).

Visual Indicators:

• ACinputandDCoutputLEDindicators.

Enclosure Dimensions (H x W x D):

13.5”x13”x3.25”(342.9mmx330.2mmx82.55mm).

Summary of content (4 pages)

PAGE 1
AL176ULX Access Control Power Supply/Charger Overview: AL176ULX is a power-limited power supply/charger that converts a 115VAC / 60Hz input into 12VDC or 24VDC output (see specifications). It is intended for use in applications requiring UL Listing for Access Control (UL 294). It must be installed in accordance with National and Local Electrical Codes and Regulations. Specifications: Agency Listings: Battery Backup: • UL Listed for Access Control Systems (UL 294). CUL Listed - CSA Standard C22.2 No.
PAGE 2
4. Measure output voltage before connecting devices. This helps avoiding potential damage. 5. Connect battery to the terminals marked [+ BAT -] on the power supply board (battery leads included). Use two (2) 12VDC batteries connected in series for 24VDC operation. Note: For Access Control applications batteries are optional. When batteries are not used, a loss of AC will result in the loss of output voltage. When the use of stand-by batteries is desired, they must be lead acid or gel type. 6.
PAGE 3
XFMR INPUT Green Lead Battery connection (non power-limited) XFMR + DC OUT ---DC ON LOWBAT AC FAIL NO C NC NO C NC VR1 + BAT ---- Wire Strap (from Enclosure to Door) 12VDC = JUMPER OUT 24VDC = JUMPER IN Door AC ON Fig. 1 Black Lead White Lead 115VAC input 60 Hz, 0.
PAGE 4
Enclosure Dimensions (H x W x D approximate): 13.5” x 13” x 3.25” (342.9mm x 330.2mm x 82.55mm) 1.40” (36mm) 4.85” (123mm) 4.85” (123mm) 1.40” (36mm) 1.20” (31mm) 3.25” (83mm) 1.20” (31mm) 0.75” (19mm) 12.5” (318mm) 11.0” (279mm) 1.20” (31mm) 0.75” (19mm) 0.9375” (24mm) 1.40” (36mm) 1.40” (36mm) 5.10” (130mm) 5.10” (130mm) 13.0” (330mm) 5.10” (130mm) 6.5625” (167mm) 0.9375” (24mm) 3.25” (83mm) 3.25” (83mm) 3.25” (83mm) 1.0” (25mm) 1.0” (25mm) 1.0” (25mm) 10.5” (267mm) 1.