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Chapter 4 — System Installation <br /> Page 4 -8 <br /> REV. 2 <br /> NOTE . s, IN lq y'. r .- : <br /> NIN <br /> A Model SM- 24/120 Solenoid Monitor must always be <br /> used with an Electrical Control Head to supervise the <br /> actuation /detection circuit. <br /> The Model ECH3 -24 Electrical Control Head requires a UL <br /> Listed 24VDC power supply with a minimum 2A rating. The 4 N <br /> Model ECH3 -120 Electrical Control Head requires a 1A, „< m <br /> 120VAC power supply. 4 <br /> SOLENOID MONITOR INSTALLATION -,. ,11 1. Solenoid Monitor Installation In "s ,,, , <br /> Detection Circuit. . <br /> After installing the thermal detectors and the control head, Figure 4 -14. Solenoid Monitor Installation. <br /> the Model SM- 120/24 Solenoid Monitor can be installed. 002881PC <br /> The Solenoid Monitor is connected to the wires leading from <br /> the last thermal detector. It should be mounted in a location All wire for circuits using the Model SM -24 shall be 18 <br /> where it can be readily observed. ► gauge minimum, or as required by local code. All wire for <br /> • circuits using the Model SM -120 shall be 14 gauge mini - <br /> The Solenoid Monitor is an end -of -line device that supervis- mum, or as required by local code. The basic wiring dia- <br /> es the actuation /detection circuit. It is comprised of a push- gram for both the Model SM -24 and Model SM -120 is <br /> type switch with a built -in indicator light, a plug -type relay, a shown in Figure 4 -14.1. <br /> relay socket, and a cover plate. The light, when illuminated, <br /> indicates that the detection /actuation circuit is in the normal <br /> condition. The Solenoid Monitor also provides two sets of <br /> dry contacts. The Solenoid Monitor's cover plate is used to <br /> ► mount the Solenoid Monitor in a standard 6 in. x 4 in. x 3 in. <br /> deep electrical box (see Figure 4 -14). <br /> THERMAL DETECTORS OR <br /> OTHER UL LISTED CIRCUIT <br /> 1 rr " -1 'ULL STA(110N CLOSURE DEVICE <br /> i (,SOLENOID; 1 -- 1 ,1 <br /> i,. .. BRt1,N , 1 ' I <br /> SWITCH B B — B B — <br /> I LC“ ten I 1 <br /> J <br /> N L <br /> I ?0 VAC � — _ __. _ __ "1 CI 1 : �. <br /> _._ —..: ,.•___. m <br /> lei i m (7--- .' - - m <br /> __ - J .01 1211 I <br /> SOLENOID MONITOR <br /> Figure 4 -14.1. Wiring Diagram, Solenoid. <br /> 002882PC <br /> ULEX 3437 CEx732 <br /> March 17, 2004 <br />