Altronix AL175UL Installation Instructions

AL175UL is a power-limited power supply/charger that converts 115VAC / 60Hz input into two individually PTC pro-
tected auto-resettable 12VDC or 24VDC outputs (see specifications). It is intended for use in applications requiring UL
Listing for Access Control (UL294) and applications requiring an interface with the Fire Alarm Control Panels. It must be
installed in accordance with National and Local Electrical Codes and Regulations.
Agency Listings:
• UL Listed for Access Control Systems (UL294).
CUL Listed - CSA Standard C22.2
No.205-M1983, Signal Equipment.
• CSFM - California State Fire Marshal Approved.
• MEA - NYC Dept. of Buildings Approved.
• NFPA 101 (Life Safety).
Input:
• Input 115VAC / 60 Hz, 0.6A.
Output:
• 12VDC or 24VDC selectable output.
• Class 2 Rated power-limited outputs.
• 1.75A continuous supply current @ 12VDC or 24VDC.
Power Supply Output Specifications:
Output
Switch Position
VDC
12VDC SW1 OFF
24VDC SW1 ON
Stand-by Specifications:
Output
12VDC / 7 AH Battery
24VDC / 7 AH Battery
The AL175UL should be installed in accordance with article 760 of The National Electrical Code or NFPA 72 as well as
all applicable Local Codes.
See Terminal Identification Chart on page 3 for a description of each terminal function.
1. Mount the 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 the two 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).
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, DC outputs). Use 22 AWG to 18 AWG for
power-limited circuits (trigger inputs, dry outputs).
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 AL175UL to the desired DC output voltage by setting switch SW1 to the appropriate position
(Power Supply Output Specification Table).
4. Measure output voltage before connecting devices. This helps avoiding potential damage.
AL175UL
AL175UL
Access Control Power Supply/Charger

Specifications:

Max. Stand-by
Load DC
1.75A
1.75A
4 hr. of Stand-by and 5 Minutes of Alarm
Stand-by = 1.25A
Alarm = 1.25A
Installation Instructions:

Overview:

Output (cont'd.):
• Aux relay output (form "C" contacts).
• Filtered and electronically regulated output.
Battery Backup:
• Maximum charge current: 400mA.
• Automatic switch over to stand-by battery when AC fails.
Altronix Corp.
140 58th St. Brooklyn, NY
Supervision:
• AC fail supervision (form "C" contacts).
• AC input and DC output LED indicators.
• Short circuit and thermal overload protection.
• Unit includes: power supply, transformer and enclosure.
Enclosure Dimensions:
8.5" x 7.5" x 3.5" (215.9mm x 190.5mm x 88.9mm).
Max. Alarm
Load DC
1.75A
1.75A
Battery
(optional)
12VDC
24VDC
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