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Manual White Rodgers 50A55-843

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  • White Rodgers 50A55-843 - page 1

    FIRE HAZARD • Do not exceed the specified voltage. • Protect the control from direct contact with water (dripping, spraying, rain, etc.). • If the control has been in direct contact with water, replace the control. • Label all wires before disconnection when servic- ing controls. Wiring errors can cause improper and dangerous operation. • ...

  • White Rodgers 50A55-843 - page 2

    2 SPECIFICA TIONS ELECTRICAL RATINGS [@ 77 ° F (25 ° C)]: Input Voltage: 25 VAC 50/60 Hz Max. Input Current @ 25 VAC: 0.45 amp Relay Load Ratings: Valve Relay: 1.5 amp @ 25 VAC 50/60 Hz 0.6 pf Ignitor Relay: 6.0 amp @ 120 VAC 50/60 Hz (resistive) Inducer Relay: 2.2 FLA–3.5 LRA @ 120 VAC Circulator Relay: 14.5 FLA–25.0 LRA @ 120 VAC Flame Curr ...

  • White Rodgers 50A55-843 - page 3

    3 INST ALLA TION MOUNTING AND WIRING All wiring should be installed according to local and national electrical codes and ordinances. The control must be secured to an area that will experience a minimum of vibration and remain below the maximum ambient temperature rating of 175 ° F. The control is approved for mini- mum ambient temperatures of -40 ...

  • White Rodgers 50A55-843 - page 4

    4 TH TR MV MV GND FP HLO HLI PS C R G W Y EAC N HUM N XFMR N LINE N CIR N IGN IND IGN N IND N HUM EAC XFMR LINE PARK PARK HEAT COOL IGNITOR Y W G R THERMOSTAT GAS VALVE HIGH LIMIT (N. C.) ROLLOUT (N. C.) AUX. HIGH LIMIT (N. C.) PRESSURE SWITCH (N. O.) FLAME SENSOR PROBE COMPRESSOR CONTACTOR ELECTRONIC AIR CLEANER HUMIDIFIER INDUCER CIRCULATOR BLOWE ...

  • White Rodgers 50A55-843 - page 5

    5 50A55 TERMINAL TERMINAL TYPE SYSTEM COMPONENT CONNECTION TYPICAL SYSTEM WIRING TABLE W G R Y C TWIN* MV (2 terminals) TR TH RO1 RO2 FP PS HLI HLO GND (unused terminal) IND IGN IND N IGN N COOL HEAT PARK (2 terminals) LINE XFMR EAC (optional) HUM (optional) CIR N LINE N XFMR N EAC N (optional) HUM N (optional) Terminal block with captive screws 12 ...

  • White Rodgers 50A55-843 - page 6

    6 OPERA TION OPTION SWITCHES The option switches on the 50A55-843 control are used to determine the length of the cool delay-to-fan-off, heat delay-to- fan-on and heat delay-to-fan-off periods. The following table shows the time periods that will result from the various switch positions. HEA T MODE In a typical system, a call for heat is initiated ...

  • White Rodgers 50A55-843 - page 7

    7 TWINNING INTERF A CE If the control has six screw terminals, one of which is designated TWIN , the control is equipped with a single wire twinning interface. If twinning is used, either control will process a call for heat, cool or fan as described above. However, after the heat-, cool-, or fan-on delay time expires, both units will energize the ...

  • White Rodgers 50A55-843 - page 8

    MOUNTING HOLE TEMPLA TE FOR MOUNTING HOLE LOCA TIONS 4.172 ± .007 (2 plcs.) 6.402 ± .010 (2 plcs.) Refer to page 3 of the installation instructions for proper installation. MOUNTING HOLE TEMPLA TE ...

Manufacturer White Rodgers Category Furnace

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All of them are important, but the most important information from the point of view of use of the device are in the user manual White Rodgers 50A55-843.

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A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use White Rodgers 50A55-843 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of White Rodgers 50A55-843.

A complete White Rodgers manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

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