Instruction/ maintenance manual of the product 50a55-286 White Rodgers
Go to page of 8
GENERAL PRECAUTION ! Application of this type of control may cause flame rollout on initial start-up and could cause personal injury and/or property damage. Replace only with exact model number, includ- ing dash number. Failure to use exact replace- ment control could cause personal injury and/or property damage.
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.
3 MOUNTING AND WIRING Do not use on circuits exceeding specified voltage. Higher voltage will damage control and could cause shock or fire hazard. To prevent electrical shock and/or equipment damage, disconnect electric power to system at main fuse or circuit breaker box until installation is complete.
4 TR TH MV MV GND FP HLO HLI PS C R G W Y EAC N HUM N XFMR N LINE N CIR N IGN IND IND N IGN N HUM EAC XFMR LINE PARK PARK HEAT COOL IGNITOR Y W G R THERMOSTAT GAS VALVE HIGH LIMIT (N. C.) THERMAL ROLLOUT (N. C.) AUX. HIGH LIMIT (N. C.) PRESSURE SWITCH (N.
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 RO1 RO2 FP PS HLI HL.
6 OPERA TION OPTION SWITCHES The option switches on the 50A55-286 control are used to determine the length of the 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 by closing the thermostat contacts.
7 DIAGNOSTIC FEATURES The 50A55 control continuously monitors its own opera- tion and the operation of the system. If a failure occurs, the LED will indicate a failure code as shown below. If the failure is internal to the control, the light will stay on continuously.
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.
An important point after buying a device White Rodgers 50a55-286 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought White Rodgers 50a55-286 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data White Rodgers 50a55-286 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, White Rodgers 50a55-286 you will learn all the available features of the product, as well as information on its operation. The information that you get White Rodgers 50a55-286 will certainly help you make a decision on the purchase.
If you already are a holder of White Rodgers 50a55-286, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime White Rodgers 50a55-286.
However, one of the most important roles played by the user manual is to help in solving problems with White Rodgers 50a55-286. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device White Rodgers 50a55-286 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
