Siemens SZM Remote Conventional Zone Module, Installation Instructions

Installation Instructions SZM Conventional Zone Module Model SZM from Siemens Building Technologies Inc is an intelligent device that a single zone of conventional devices to an FDLC device loop of an FS 250C The SZM can power up to fifteen compatible 2 wire ionization or photo smoke detectors or it can power one PB 1191 Beam Detector It can also an unlimited number of shorting devices such as waterflow switches thermal manual stations etc SZM can be assigned a custom message using the FS CT2 tool Refer to the Programming Manual P N 315 049403C The alarm verification configuration used only for non shorting detectors SZM supports Class A and Class B wiring The module uses one address on the loop It does not require any mechanical address programming Use the Device Programming Unit to program and test the module 1 Module And Indicators SZM has a multicolor LED visible through the cover plate which indicates the of the circuit This multicolor LED displays red for alarm yellow for trouble green for normal operation See Figure 1 The Module Address the SDPU Device Programming Unit plug the programming cable the programming points on the SZM See Figure 1 the address for the SZM by following the instructions in the SDPU P N 315 033260C 315 034850C 4 Building Technologies Safety all system power before installation first battery then AC To power up the AC first then the battery Connections you have set the SZM address connect the field wiring There are three basic to the SZM initiating devices FDLC device loop and 24 VDC power All are power limited Devices 2 3 and 4 SZM supports one zone of initiating devices in either Class A or Class B The devices are connected to terminals 5 on the SZM terminal block The is a polarity insensitive module and terminals 1 and 2 can be connected to line of the FDLC Device Loop Figure 2 shows the Class A wiring Figure 3 the Class B wiring D A Wire minimum 18 AWG ohms Max Supervised power limited to 70 per NEC 760 Voltage 24VDC Positive and negative ground detected at 60K ohms terminals 5 8 POWER LOOP 2 1 POWER LOOP 2 1 EOL DEVICE IS 4.7K 1 4W P N 140 820188 MODEL EL 33 WITH 4.7K 1 4W RESISTOR 2 Initiating Devices Wiring Diagram A Style D Installation B B EOL DEVICE IS 4.7K P N 140 820188 MODEL EL 33 WITH 1 4W RESISTOR 3 Initiating Devices Wiring Diagram B Style B Installation USED Wire minimum 18 AWG ohms Max both sides Supervised power limited to 70 per NEC 760 Voltage 24VDC Positive and negative ground detected at 60K ohms terminals 5 8 Building Technologies Safety 315 034850C 4 DETECTOR WIRING B NOT CONNECT MORE THAN PB 1191 TO AN SZM C D E 4 shows the wiring for the PB 1191 beam detector When PB 1191 is used the 2 position plug from jumper J1 must removed POWER DEVICE LOOP 2 1 1 4W RESISTOR 140 820185 the steps listed below to remove the 2 position plug J1 Remove the screw from the center of the SZM plastic and place it to one side USED Remove the circuit board and locate jumper J1 Remove the 2 position plug from J1 Reassemble the circuit board and plastic cover using the that was removed in the first step Be sure to use the correct end of line device with the SZM this configuration and negative ground fault detected at 60K ohms for 5 8 4 Wiring Diagram For PB 1191 Installation Loops 5 SZM communicates with the FS 250C via its FDLC device loop The device loop be wired Class A or Class B Figure 5 shows both wiring types Refer to the Installation Operation and Maintenance Manual P N 315 049589C for wiring information Loop resistance 50 ohms with 252 devices on loop Refer to the FS Installation Operation Maintenance Manual if number of devices is than 252 All wire minimum 18 AWG No EOL device required When wiring Class B no required between OUT and IN OUT and IN Supervised power limited to 70 per NEC 760 Positive and negative fault detected at ohms for terminals on SZM Device Circuit A INSTALLATION T TAPPING ALLOWED 1 RETURN IN FULL CONFORMANCE WITH STYLE 6 Device Circuit B INSTALLATION ALLOWED IN FULL CONFORMANCE WITH STYLE 4 2 OUT 2 RETURN 1 OUT USED 2 1 USED VDC Power 6 SZM receives its power from the 24V power output on the control panel or power supply The 24 VDC power may be wired only as Class B Since the monitors the power at its screw terminals you can star or T tap the power Refer to Figure 6 for the wiring diagram Building Technologies Safety 315 034850C 4 All wire minimum 18 AWG No EOL device required Supervised power limited to 70 per NEC 760 A power supply which is power limited UL listed for fire signaling use and rated between 18.8 28.2 Positive and negative fault detected at ohms for terminals on SZM B INSTALLATION ALLOWED 24 VDC NOTE 5 6 24 VDC Wiring Diagram Mount the SZM in a standard two gang electrical box The box must have a of at least 3 inches When the field wiring for the initiating devices device loop and 24 VDC is press the SZM into the box and fasten it with the four screws a dress bezel if necessary making sure that the ALARM LED is with the hole in the bezel devices in Table 1 are listed for use with the SZM up to fifteen detectors any combination of those listed one PB 1191 and no additional devices can be connected an SZM operated accessories cannot be used with the SZM model numbers listed are the UL compatibility identifiers RATINGS Building Technologies Ltd Kenview Boulevard Ontario L6T 5E4 Canada 315 034850C 4