White Rodgers 50A65-843 manual

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Table of contents for the manual

  • 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. •[...]

  • 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: 2.0 amp @ 120 VAC 50/60 Hz (resistive) Flame Current Requirements: Minimum current to insure flame detection: 1 µa DC* Maximum current for non-[...]

  • 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°[...]

  • Page 4

    4 TH TR MV MV GND FP RO1 RO2 HLO HLI PS C R G W Y EAC N E33 HUM N XFMR N LINE N CIR N IGN N IND N IGN IND HUM EAC XFMR LINE PARK PARK HEAT COOL IGNITOR Y W G R THERMOSTAT GAS VALVE HIGH LIMIT (N. C.) AUX. HIGH LIMIT (N. C.) PRESSURE SWITCH (N. O.) FLAME SENSOR PROBE COMPRESSOR CONTACTOR ELECTRONIC AIR CLEANER HUMIDIFIER INDUCER CIRCU- LATOR BLOWER [...]

  • Page 5

    5 Terminal block with captive screws 12-pin connector & harness 4-pin connector & harness spade terminal spade terminal spade terminal spade terminal spade terminal spade terminal spade terminal spade terminal spade terminal spade terminal spade terminal spade terminal 3/16" spade terminal 50A65 TERMINAL TERMINAL TYPE SYSTEM COMPONENT [...]

  • Page 6

    6 OPERA TION OPTION SWITCHES The option switches on the 50A65-843 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 [...]

  • Page 7

    7 SYSTEM LOCK OUT AND DIA GNOSTIC FEA TURES SYSTEM LOCKOUT FEATURES When system lockout occurs, the gas valve is de-energized, the circulator blower is energized at heat speed, and, if flame is sensed, the inducer blower is energized. The diagnostic indica- tor light will flash or glow continuously to indicate system status. (System lockout will ne[...]

  • 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 f or proper installation. MOUNTING HOLE TEMPLA TE[...]