White Rodgers 24A07A-1 User's Manual
Contents
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4. TYPE 24A07 SLIMLINE LEVEL TEMP SILENT OPERATOR Normally Open INSTALLATION INSTRUCTIONS Operator Save these instructions for future use FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND OR PROPERTY DAMAGE These Level Temp Silent Operator relays are designed for use on electric heating equipmentin conjunction with White Rodgers low voltage thermostats They are especially suitable for use on baseboards wall insert heaters etc Some models also have an inductive rating to permit them to be used on motor loads where a time delay is desired Different models of these Silent Operator relays are available for voltage inputs of 120 208 240 277 347 or 600 volts Since these relays are equipped with a self contained transformer the supply voltage used must agree with the voltage rating of the relay When required two or more of these Silent Operator relays can DESCRIPTION be operated by one low voltage heating thermostat These Silent Operator relays have been carefully adjusted at the factory No attempt should be made to adjust them in the field If in doubt about whether your wiring is millivolt line or low voltage have it inspected by a qualified heating and air condi tioning contractor electrician or someone familiar with basic electricity and wiring Do not exceed the specification ratings All wiring must conform to loc
5. al and national electrical codes and ordinances This control is a precision instrument and should be handled carefully Rough handling or distorting components could cause the control to malfunction ELECTRICAL DATA Switch Action Single Pole Single Throw normally open Thermal Average time delay 45 seconds To prevent electrical shock and or equipment damage disconnect electric power to system at main fuse or circuit breaker box until installation is complete Do not use on circuits exceeding specified voltages Higher voltages will damage control and could cause shock or fire hazard SPECIFICATIONS Room Thermostat Set adjustable heat anticipator at 0 2 Amps For fixed anticipa Ambient Temp 20 to 140 F 24 to 60 C tion thermostats use 0 15 to 0 25 Amp heater TYPE INPUT THERMOSTAT A C RESISTIVE A C MOTOR INDUCTIVE NUMBER VOLTAGE FREQUENCY CURRENT NON INDUCTIVE FULL LOAD LOCKED ROTOR 24A07A 1 120VAC 60 Hz 0 2A 25A 3000VV 120V 16A 120V 96A 120V 24A07E 1 208VAC 60 Hz 0 2A 25A 5200VV 208V 12A 208V 72A 208V 24A07G 1 240VAC 60 Hz 0 2A 25A 6000VV 240V 12A 240V 72A 240V 24A07Z 1 277VAC 60 Hz 0 2A 22A 6000VV 277V 24 072 8 347VAC 60 Hz 0 2A 17A 5900W 347V 24A07Z 9 600VAC 60 Hz 0 2A 12A 7200W 600V Mounting Mounting tabs with several break offs for 2 3 or 4 hole mounting 4 EMERSON www white rodgers com ww
6. d with the heating equipment follow those instructions If none is available several diagrams are presented on this sheet which show different wiring meth ods for these Silent Operator relays Always be sure that the supply voltage agrees with the voltage rating of the Silent Operator relay MAKE L2 HOT ON 120V MODELS LOW VOLTAGE THERMOSTAT pucks TEL lt BLUE o o 5 ox RED WHITE 5 Fig 3 Diagram of LEVEL TEMP VViring WIRING CONT All wiring should be done in accordance with local and national electrical codes and ordinances In operation a circuit is completed through the bimetal heater as the low voltage room thermostat closes its contacts In approximately 45 seconds the warping ac tion of the heater closes the line voltage snap switch to energize the heating load When the thermostat opens its contacts the bimetal heater cools for approximately 45 seconds before the line voltage switch opens to de energize the heating load LOAD 1 L1 MAKE L2 HOT ON 120V MODELS 2 VVIRE HEATING THERMOSTAT L2 SILENT OPERATOR 1 MOTNJA Fig 4 Diagram using one thermostat to operate one Level Temp operator USING ONE THERMOSTAT AND TWO OR MORE SILENT OPERATORS TO SEQUENCE LOADS Figure 5 shows how several Silent Operator relays can be used to sequence on separate heating
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9. loads The red and white leads of additional Silent Operator relays should be jumpered as shown All wiring should be performed exactly as shown As the thermostat closes its contacts each separate heat ing load will be sequenced on in intervals of 45 seconds When the thermostat is satisfied each separate load will be sequenced off in intervals of about 45 seconds SILENT OPERATOR 1 7 RED TO LOW VOLTAGE ROOM THERMOSTAT MAKE L2 HOT li r WHITE ON 120V MODELS L2 x 27 3 1 LOAD 1 1 Use thermostat with a 2A fixed heater l or set adjustable heater in thermostat l at 2A CAUTION I nS ee Sw Leads A and B must be alternated between 1 SENT L1 and L2 as shown for each Silent Operator 1 OPERATOR 2 used BP oe T RED l YELLOW VVH TE Es L2 5 74 m z x 1 1 FIELD INSTALLED 1 WIRE NUT 1 4 I SILENT 1 OPERATOR 3 Loo mrs 771 RED 1 I WHITE L2 qe pe ui t BLUE i I l WIRING LOAD 3 Line Voltage TO YELLOW Line Voltage Field 0 UL Low Voltage EEE Fig 5 Typical VViring Diagram to Sequence tvvo or more loads 3 White Rodgers is a business of Emerson Electric Co The Emerson logo is a trademark and service mark of Eme
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12. w emersonclimate com PART NO 37 4709D Replaces 37 4709C 1209 OPERATION Basic Silent Operator components are a line to low voltage transformer a low voltage bimetal heater an ambient com pensating bimetal and a normally open SPST line voltage snap action switch INSTALLATION The proper location and method of installation for the Silent Operator relay shall be determined by the manufacturer of the heating equipment A dimensional drawing of the Silent Operator relay is shown at the right WIRING HEATING LOAD WIRING Line Voltage Line Voltage Field Low Voltage TRANSFORMER Ned d n Olan Fig 1 Internal wiring of Type 24A07 BREAK OFF TABS A 1 15 16 43 16 Se 4 3 11 32 3716 1 1 3 8 el tr il o 15 32 Y Y 7 ie 213 32 pw e 916 e 2 11 16 La n O O ol WE AMBIENT COMPENSATING BIMETAL BIMETAL HEATER RED WHITE LINE VOLTAGE SNAP SWITCH NORMALLY OPEN q Ey 4 1 15 32 1 Fig 2 Dimensions of Type 24A07 Level Temp All wiring should be done in accordance with local and national electrical codes and ordinances If a wiring diagram is supplie
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