BECKETT R7184B PRIMARY
OPERATIONAL GUIDE
LED Codes – Flashing 1/2 second on / 1/2 second off – system is locked out or in restricted mode (hard lockout).
– Flashing 2 seconds on / 2 seconds off – control is in recycle mode (soft lockout).
–ON – CAD cell is sensing flame
–OFF – CAD cell is not sensing flame.
Ignition Trials – On any given call for heat the control will allow three ignition trials. After the three trials the control will go into a soft lockout mode. The LED will flash 2 seconds on and 2 seconds off when in this recycle mode. The control may then be reset by pressing the RED reset button on the control. If within the same original call for heat the control will again allow three ignition trials followed by another soft lockout and a 2 second on / 2 second off LED code. The control my be reset one additional time by pressing the red reset button. This will allow three final ignition trials. If all three of the final ignition trials
fail then the control goes into a hard lockout or Restricted Mode. This series of ignition failures must all occur with the original call for heat in order to reach the Restricted Mode. The LED will now flash 1/2 second on / 1/2 second off indicating the restricted mode. The control can be resurrected from the restricted mode only by pressing and holding the red reset button for approximately 30 seconds until the LED flashes twice. Removing unit power or resetting the thermostat will not reset the control
Checking CAD Cell – With a call for heat and the burner ignited, press and release the red reset button. The LED will go out and then flash 1, 2, 3, or 4 times before returning to the run mode. The CAD cell resistance must be below 1600 ohms for proper operation.
– | 1 flash | – Less than 400 ohms | |
– | 2 flashes | – More than 400 and less than 800 ohms | |
– | 3 flashes | – | More than 800 and less than 1600 ohms |
– | 4 flashes | – | More than 1600 and less than 5000 ohms |
Burner Option – Flame Quality Monitor
This control is trained to recognize and remember a good flame based on initial burner set up. Control then monitors the flame via the CAD cell signal for deviation in the combustion characteristics of the burner. If the control senses a deviation on the high side or on the low side from the original set up condition for three consecutive cycles, it will trigger an alarm circuit which can be tied to an audible local device to signal the home owner or into the home security system. Upon being notified of the of the
Electronic Blower Control Board (EBC)
This furnace is equipped with an Electronic Blower Control (EBC) which controls all comfort air blower operations. This EBC has three relays; one for heating speed, one for cooling speed, and one which isolates the
This EBC is designed to be very simple and dependable. This basic control allows for easy troubleshooting and maintenance. As illustrated in Figure 7 all connections are well marked. The
alarm, the security agency will notify the dealer of choice based upon information supplied by the home owner. The system will also be capable of being connected to a phone line that will contact the dealer directly with the alarm. This alarm will typical sound 3 to 5 days prior to the primary control going into lockout giving the service agency a prior notice before a sooting condition or other failure can occur resulting in untold savings. This monitor system is available through your local distributor under the Honeywell part no. QS7100F.
blower on and off timings for both heating and cooling speeds are timed automatically. The heating blower off delay can be selected from four different timings by moving the selection jumper. The timings are as follows:
Heating Blower ON delay – 75 seconds from a call for heat.
Heating Blower OFF delay – Selectable in seconds: 150, 180. 210 or 240. Factory shipped at 240.
Cooling Blower ON delay – 6 seconds from a call for cooling.
Cooling Blower OFF delay – 60 seconds.
Manual
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