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Manual White Rodgers 50A55-438

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  • White Rodgers 50A55-438 - page 1

    WHITE-RODGERS DIVISION EMERSON ELECTRIC CO. 9797 REAVIS ROAD ST. LOUIS, MISSOURI 63123-5398 Printed in U.S.A. 50A55-438 Integrated Furnace Control FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE. PART NO. 37-6102B Replaces 37-6102A 0009 DESCRIPTION ...

  • White Rodgers 50A55-438 - 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) Flame Current Requirements: Minimum current to insure flame detection: 1 µ a DC* Maximum current ...

  • White Rodgers 50A55-438 - page 3

    3 INST ALLA TION WARNING CAUTION FIRE HAZARD • Do not exceed the specified voltage. • Replace existing control with exact model and dash number. • Protect the control from direct contact with water (dripping, spraying, rain, etc.). • Label all wires before disconnection when servic- ing controls. Wiring errors can cause improper and dangero ...

  • White Rodgers 50A55-438 - 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 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 50A55 24 VAC ...

  • White Rodgers 50A55-438 - page 5

    5 50A55 TERMINAL TERMINAL TYPE SYSTEM COMPONENT CONNECTION TYPICAL SYSTEM WIRING TABLE * maximum recommended flame probe wire length is 36 inches. W G R Y C MV (2 terminals) TR TH FP PS HLI HLO GND (3 unused terminals) IND IGN IND N IGN N COOL HEAT PARK (2 terminals) LINE XFMR HUM (optional) EAC (optional) CIR N LINE N XFMR N HUM N (optional) EAC N ...

  • White Rodgers 50A55-438 - page 6

    6 OPERA TION COOL delay- to-fan-off: Set switch #1 COOL delay- to-fan-off: Set switch #2 #3 0 sec. 80 sec. On Off 60 sec. 100 sec. 140 sec. 180 sec. On Off On On Off On Off Off OPTION SWITCH POSITIONS OPTION SWITCHES The option switches on the 50A55-438 control are used to determine the length of the cool delay-to-fan-off and heat delay- to-fan-off ...

  • White Rodgers 50A55-438 - page 7

    7 SYSTEM LOCKOUT AND DIAGNOSTIC 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 neve ...

  • White Rodgers 50A55-438 - 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 Thermostat

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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 50A55-438.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals White Rodgers 50A55-438, service manual, brief instructions and user manuals White Rodgers 50A55-438. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product White Rodgers 50A55-438.

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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 50A55-438 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of White Rodgers 50A55-438.

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.

1. Preface and tips on how to use the manual White Rodgers 50A55-438 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the White Rodgers 50A55-438, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the White Rodgers 50A55-438, that we can find in the current document
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4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with White Rodgers 50A55-438
5. FAQ - Frequently Asked Questions
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