Ademco - PS24 Power Supply Module

INSTALLATION 9 95 SUPPLY MODULE INFORMATION PS24 power supply module is an accessory for Ademco control intended for use in commercial fire installations The PS24 two triggerable 24VFW full wave rectified unfiltered 1.7 amp that can either provide 24VFW auxiliary power or can up to two control panel 12VDC EOLR supervised bell circuit to 24VFW EOLR supervised bell outputs of the PS24 outputs labeled OUTPUT A and OUTPUT B has corresponding controlling input labeled INPUT A and INPUT B Negative voltages applied to INPUT A and INPUT B passed through to the associated output allowing the control to supervise bell circuit wiring connected to that output as for installations which use the output for 24VFW EOLR bell circuit operation Applying positive voltages of 9.5 to INPUT A and INPUT B produces 24VFW at the respective terminals installations which require 24VFW auxiliary power you must INPUT A and or INPUT B to the control panel 12VDC auxiliary terminals so that the associated PS24 output remains continuously For installations which require 24VFW supervised bells you must wire INPUT A and or INPUT B to controls panel 12VDC EOLR supervised bell terminals power for the PS24 power supply module is supplied by a transformer which consists of an AC power trans former a manually resettable circuit breaker mounted inside a enclosure The 1451 24 transformer has two secondary a 30VAC 188VA winding which is used to power the module and a 18VAC 72VA winding which is used to power control panel The PS24 module monitors its connection to the and can report a low AC condition to the control panel via of the control panel EOLR supervised zones The 1451 24 transformer is not supplied with the PS24 unless of a kit see Note 2 Complete control panel kits are available consisting of the panel PS24 module and 1451 24 transformer For a 5140XM control panel kit is available under part 5140XM and consists of the 5140XM control PS24 module 1451 24 transformer and a few other devices power for the PS24 power supply module is supplied by pair of 12VDC lead acid gel cell batteries rated at 7AH minimum maximum Both batteries connect directly to the PS24 which internally configures them to provide 24V back up for its outputs and 12V back up power for the control panel PS24 module charges and tests these batteries and can report low or disconnected battery condition to the control panel via one the control panel EOLR supervised zones PS24 module is designed to mount inside the control panel to Figure 1 attach the PS24 PCB to the metal bracket using the four 6 sheet metal screws supplied Then the PS24 bracket onto the left sidewall of the control panel as shown in Figure 2 This method of mounting leaves in the control panel enclosure for the panel module back up The control panel enclosure should be mounted to the wall attempting to install the PS24 module because the will block access to the control left mounting hole CLIP BRACKET PCB SIDE SHOWN SHEET SCREWS WRAP HOLE FIGURE 2 the PS24 PCB to the Metal Clip Bracket 1 NOT USE THIS KNOCKOUT PS24 PCB METAL ASSEMBLY AS SHOWN MOUNTING THE PS24 MOUNT CONTROL PANEL TO WALL REMOVE CONTROL PANEL DOOR AC POWER WIRES THIS KNOCKOUT THESE WIRES AWAY OTHER CONTROL PANEL SO AS TO MAINTAIN LEAST 1 4 SPACING THESE WIRES BY TIE THEM TO THE TIE WRAP HOLE 2 the PS24 Inside the Control Panel Enclosure CAPACITY CALCULATIONS PS24 module requires connection of two 12VDC lead acid gel cell rated at 7AH minimum 17.2AH maximum The PS24 configures batteries to provide 24V back up power for it 24V outputs and 12V power for the control panel See the CONNECTIONS AND UP PROCEDURES section for battery connection details NOTE requires that the battery capacity be sized for 24 hours of standby followed by 5 minutes of alarm time for commercial fire installations 15 minutes of alarm time for commercial fire burglary installations battery capacity can be calculated using the worksheets on next page Fill in the total control panel standby and alarm currents in the below These totals must include the control panel PCB as well as the currents drawn from the control panel power and bell power outputs Refer to the control panel instructions to determine these currents CAPACITY CALCULATIONS Cont in the Total PS24 MODULE Load Worksheet below to deter the PS24 total standby and alarm current loading Then use BATTERY CAPACITY CALCULATION WORKSHEET to the capacity required for each of the PS24 batteries 12 volt batteries from the BATTERY SELECTION TABLE capacities which are greater than or equal to the calculated CALCULATION WORKSHEETS 1 A and Input B draw 50mA from the control panel when is applied to actuate the corresponding output Be to include this in the control panel total load 2 configured for auxiliary power operation enter the load in the standby column and enter the load plus any additional intermittent alarm load in alarm column When configured for bell circuit operation in the standby column and enter total load in the column 3 largest battery capacity supported by the PS24 is Total PS24 standby current must be limited to maximum for this battery Value SELECTION TABLE Amp Number AH AH AH required required required two batteries from the same manufac turer with the capacity and with approximately the same age both batteries at the same time even if only one is low Wire the LOW AC and LOW BATTERY outputs to separate control EOLR supervised zones Program the respective control zones for 24 hour trouble response Connect the PS24 CONTROL BATTERY POWER output fast on to the control panel battery terminals using the battery supplied with the control panel Apply AC power and verify that the proper battery float charging 27.0 is present across the BATT 1 and BATT 2 terminals Then connect two 12V lead acid batteries as shown in 3 using the battery cables supplied The battery cable female Fast on terminals should be off when making connections to the 17.2 AH batteries Verify that the LOW AC and LOW BATTERY outputs are in the not state i e shorted to ground through 220 ohms Verify that OUTPUT A and OUTPUT B are in the proper state i e for auxiliary power operation not active for bell circuit operation Control Panel Load control panel load at 12V Note 1 control panel worksheets control panel load at 24V above values by 0.62 PS24 Module Load Worksheet OUTPUT A load Notes 2 3 for all devices on OUTPUT A OUTPUT B load Notes 2 3 for all devices on OUTPUT B BATTERY POWER load control panel load at 24V calculated above PCB current values are fixed PS24 module load Note 3 currents in columns above mA max max mA max max mA mA mA max max CAPACITY CALCULATION WORKSHEET standby load x 24 hours x 1.1 contingency use total PS24 standby load alarm load x alarm time in hours 5 minutes 0.083 hours 15 minutes 0.250 hours use total PS24 alarm load standby and alarm capacities AND POWER UP PROCEDURES 7 wire harness consisting of six 22 AWG and one 16 AWG wires provided for making connections between the PS24 and the control Use the 22 AWG wires to make connections to the PS24 A INPUT B LOW AC and L