PM84x Series 13.8 V DC Switch Mode Power
Supplies Installation Sheet
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IT
EN: Installation Sheet
Features
High efficiency cost effective power supply ideal for use in
Intruder, Access Control and General Security applications.
Featuring a regulated 13.8 V DC output supplying continuous
full rated current to load plus additional current for charging a
standby battery. Maximum battery life is assured using deep
discharge protection to prevent premature battery failure when
operating in standby mode for extended periods*. Two sets of
volt-free contacts are provided to signal (i) loss of mains and
(ii) battery and loss of output faults*.The universal mains input
voltage enables the power supply to be used across a wide
geographical area. The highly efficient switch mode design
ensures low operating costs, generates less heat and with a
small physical size increases the room available for additional
PCBs or cables. The modular construction simplifies
maintenance.
•
Continuous full rated current to load
•
Additional current to charge a standby battery
•
Battery Deep Discharge Protection*
•
Universal mains input voltage 90-264 V AC
•
Volt free contact signaling mains failure*
•
Volt free contact signaling output and battery faults*
•
High efficiency electronics for reduced running costs and
lower operating temperatures
•
Installer safe design with all high voltage electronics fully
shrouded
•
Modular construction for ease of maintenance and
installation
•
Full electronic short circuit and overload protection on load
output under mains operation
•
Mains transient protection circuit
•
Lid opening tamper detection
•
Removal from mounting tamper detection*
•
Green Mains present LED
•
Red Fault LED
* Dependent on model
© 2020 Carrier. All rights reserved. Specifications subject to change without prior notice
Installation instructions
This unit is only suitable for installation as permanently
connected equipment. The PSU is NOT SUITABLE for external
installation. EQUIPMENT MUST BE EARTHED. Before
installation, ensure that external disconnect device is OFF. The
PSU should be installed according to all relevant safety
regulations applicable to the application.
PM841, PM842 and PM844-A layout
100mm (min) all around
Fig 1. Location diagram
Mounting
1.
Mount securely in correct orientation allowing the
minimum clearance – see diagram.
2.
Route mains and low voltage output cables via different
knockouts and/or cable entry holes.
3.
Use bushes and cable glands rated to UL94 HB minimum.
Mains power-up
1.
Attach correctly rated mains cable (minimum
0.5 mm
2
[3 A], 300/500 V AC) and fasten using cable ties.
2.
Apply mains power. Check for 13.8 V DC on load outputs.
Check green Mains LED is on.
3.
Disconnect mains power.
Load output
1.
Attach correctly rated load cable and fasten using cable
ties. Note polarity.
2.
Apply mains power. Check green Mains LED is on.
Note:
Red LED may flash or be steady on (dependent upon
model) to indicate that no battery has been connected. This is
normal.
P/N PAK200503 REV 04A • ISS JUN 21