Honeywell R7184P User's Manual
Contents
1. M16453A Fig 2 Wiring terminals 1 Open hand valve in oil supply line 2 Make sure system is powered Check circuit breaker or fuse and close system switch if provided 3 Set thermostat to call for heat 4 Make sure burner lights and operates until call for heat ends Check Safety Features Safe Start 1 Place a jumper across cad cell terminals 2 Follow procedure to turn on burner Burner must not start indicator light turns on and control remains in Idle Mode Simulate flame failure Follow procedure to turn on burner Close hand valve in oil supply line Device enters recycle mode Device tries to restart system after approximately 60 seconds Safety switch locks out approximately in safety switch timing indicated on label Indicator light flashes at 1 Hz rate Ignition and motor stop and oil valve closes PONS p L8148A C C1 TAQUASTATO CONTROLLER J THERMOSTAT L1 L2 CIRCULATION PUMP INTERRUPTED IGNITOR INTERMITTENT REMOTE 1 1ALARM ALARM I can ICIRCUIT 1 1 gt cua JUNCTION BOX LEGEND SCREW TERMINAL gt gt 1 4 IN QUICK CONNECT TERMINAL A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED A OPTIONAL FEATURE ON SELECT MODELS M17182B Fig 3 Wiring for typical oil fired boiler L1 T8600 HOT L2 Fq COOLING A FAN RELAY CONTROL BURNER MoOR gt INTERRUPTED2. C to 147 F 64 C Shipping Temperature 20 F 29 C to 150 F 66 C Humidity 90 relative humidity at 95 F 93 C noncondensing Approvals Underwriters Laboratories Inc Recognized Canadian Underwriters Laboratories Inc Table 1 R7184 Models Valve on delay Burner motor off Alarm Typical Wiring Diagram Thermostat Model sec delay min Contacts Fig Reference No Terminals T T R7184A None None None 3 4 5 Yes R7184B 15 None None 3 6 7 Yese R7184Pa 15 0 2 4 6 Optional 3 6 7 Yes R7184U Selectable 0 or 15 Selectable 0 or Yes 3 6 7 Yes 0 2 4 6 Some select models may have a delay enable disable switch Standard timings Other timing may be available on select models Select models are provided with a T T jumper which can be disabled by cutting with a pair of side cutting pliers INSTALLATION When Installing this Product 1 Read these instructions carefully Failure to follow instructions can damage product or cause a hazardous condition 2 Check ratings given in these instructions and on product to make sure product is suitable for your application 3 Make sure installer is a trained experienced service technician 4 Use these instructions to check out product operation after installation A WARNING Electrical Shock Hazard Can cause serious injury or death Disconnect power supply before beginning installation to prevent electrical shock or eq
3. and release the reset button Indicator light will flash 1 to 4 flashes See Table 3 for equivalent cad cell resistance Table 3 Cad cell resistance when sensing flame Cad Cell Resistance in ohms Less than 400 Flashes More than400 and less than 800 More than 800 and less than 1600 B ef More than 1600 and less than 5000 Ereiamary Steps Check wiring connections and power supply Make sure power is on to the controls Make sure limit control is closed Check contacts between ignitor and the electrodes Check the oil pump pressure Pena g 6 Check the piping to the oil tank 7 Check the oil nozzle oil supply and oil filter Check Oil Primary Control If the trouble is not in the burner or ignition hardware check the oil primary control by using the following equipment 1 Screwdriver 2 Voltmeter 0 to 150 Vac 3 Insulated jumper wire with both ends stripped A WARNING Electrical Shock Hazard Can cause serious injury or death Troubleshoot with the system powered Be careful to observe all precautions to prevent electrical shock or equipment damage Refer to Table 4 for further troubleshooting information 5 69 1233 2 R7184A B P U INTERRUPTED ELECTRONIC OIL PRIMARY Table 4 R7184 Operation External Action Power applied to control R7184 Action Internal safety check conducted If no light or flame is detected and all internal conditio
4. should be 120 Vac 3 Check indicator light with burner off no call for heat no flame Indicator light is on Cad cell or controller is defective sees external light or connections are shorted Go to step 4 Indicator light is off Go to step 5 4 Shield cad cell from external light Indicator light turns off Eliminate external light source or permanently shield cad cell Indicator light stays on Replace cad cell with new cad cell and recheck If indicator light does not turn off remove cad cell leadwires from R7184 and recheck If indicator light turns off replace cad cell bracket assembly Refer to TRADELINE catalog for bracket part numbers If indicator light does not turn off replace controller 5 On warm air systems jumper thermostat T to T terminals on R7184 On hydronic systems jumper Limit terminal and L1 of R7184 IMPORTANT First remove one thermostat lead Burner starts Trouble is in thermostat or limit circuit Check thermostat or limit wiring connections Burner does not start Disconnect line voltage power and open line switch Check all wiring connections Tighten any loose connections and recheck If burner does not start replace R7184 Condition Burner starts then locks out on safety with indicator light flashing at 1 Hz rate 1 2 second on 1 2 second off 6 Reset oil primary control by pushing in and releasi
5. Honeywell R7184A B P U Interrupted Electronic Oil Primary APPLICATION The R7184A B P U Interrupted Electronic Oil Primary is a line voltage safety rated interrupted ignition oil primary control for residential oil fired burners used in boilers forced air furnaces and water heaters The R7184A B P U used with a cad cell flame sensor operates an oil burner and optional oil valve The primary controls fuel oil senses flame controls ignition spark and notifies a remote alarm circuit when in lockout The R7184 can be used with both hydronic and forced air systems When used with hydronic systems line voltage switching Aquastat Controllers normally provide for the starting and stopping of the combustion sequences With forced air systems both mechanical and electronic low voltage thermostats control the starting and stopping of the combustion process Some hydronic and forced air systems now require a delayed valve on and burner motor off delay The R7184 operates an oil valve that prevents the flow of oil when the burner motor is running prior to combustion delayed valve on and when the burner motor is running after combustion burner motor off delay The R7184 models are intended for use only on oil burning appliances which do not require prepurge and post purge as a Safety related function as defined in UL 296 The valve on delay and burner motor off delay in this control are intended only to help establish draft and re
6. IGNITOR INTERMITTENT gt cao gt A avant Ey REMOTE ALARM 1 CIRCUIT JUNCTION BOX LEGEND SCREW TERMINAL gt gt 1 4 IN QUICK CONNECT TERMINAL A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED ZA OPTIONAL FEATURE ON SELECT MODELS A VALVE MAY BE ADDED AS SHOWN zigan Fig 4 Typical wiring diagram for 24 Vac thermostat and R7184 for an oil fired forced air system 3 69 1233 2 R7184A B P U INTERRUPTED ELECTRONIC OIL PRIMARY LINE VOLTAGE THERMOSTAT OR AQUASTAT 3 r VALVE 5 A 1 1 BURNER 3 BURNER MOTOR MOTOR 1 INTERRUPTED NTO IGNITOR H l INTERMITTENT l l I CAD CELL gt gt t JUNCTION BOX LEGEND SCREW TERMINAL gt gt 1 4 IN QUICK CONNECT TERMINAL A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED A OPTIONAL FEATURE ON SELECT MODELS A VALVE MAY BE ADDED AS SHOWN M17184B Fig 5 Typical wiring diagram for line voltage Aquastat thermostat and R7184 for an oil burner system Li HOT COOLING ue A FAN RELAY CONTROL 7 R7184 A LIMIT Lt l HOT gt o 2 BURNER MOTOR IGNITOR T CAD CELL JUNCTION BOX LEGEND Z SCREW TERMINAL gt 1 4 IN QUICK CONNECT TERMINAL A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED A OPTIONAL FEATURE ON SELECT MODELS MIPieeA Fig 6 Typical w
7. call for heat ends or flame is lost If flame is lost 1 Control enters Recycle Mode 2 Recycle time starts 60 seconds 3 Burner and valve are turned off 4 Indicator light flashes at 1 4 Hz 2 seconds on 2 seconds off 5 Returns to Idle mode at end of Recycle mode Call for heat is satisfied R7184A U if burner motor off delay is disabled a Burner motor and oil valve shut off b Indicator light turns off R7184B P U if burner motor off delay is enabled a Oil valve shuts off b Burner motor runs for selected burner motor off delay c Burner motor turns off d Device returns to Idle mode Reset button pushed two times without device completing a call for heat R7184 enters Restricted mode Indicator light flashes at 1Hz 1 2 second on 1 2 second off Reset device by pressing and holding reset button for a minimum of 30 seconds Table 5 Troubleshooting Information Procedure Status Corrective Actions Condition Burner does not start with a call for heat 1 Check that limit switches are closed and contacts are clean 2 Check for line voltage power at the oil primary control Voltage should be 120 Vac 3 Check indicator light with burner off Indicator light is on Cad cell or controller is defective sees external light no call for heat no flame or connections are shorted Go to step 4 Indicator light is off Go
8. duce oil after drip related problems FEATURES Limited Recycle This feature limits the number of recycle trials for each call for heat to a maximum of three trials If the flame is lost three times and does not successfully satisfy a call for heat the R7184 locks out Pump Priming Cycle To facilitate purging air from the oil lines and filters the R7184 can be placed in a purge routine by pressing and releasing the reset button during the safety check delayed valve on ignition or carry over periods The U S Registered Trademark Copyright 2000 Honeywell Inc All Rights Reserved INSTALLATION INSTRUCTIONS lockout timing will be extended to 4 minutes and the ignition set in the intermittent mode for this cycle only The R7184 automatically reverts to its labeled interrupted and safety switch timing states The pump priming cycle can only be entered if there have been no lockout occurrences since the last successful heat call To reset the device so that the pump priming cycle can be entered press and hold the reset button for 30 seconds until the LED flashes twice Disable Function Pressing and holding the reset button will disable all functions until the button is released The R7184 will restart at the beginning of the normal heat cycle on safety check Limited Reset Restricted Mode In order to limit the accumulation of unburned oil in the combustion area the control can only be reset three times The res
9. erviceable parts Do not attempt to take it apart Replace entire control if operation is not as described To completely troubleshoot an oil burner installation check the burner and oil primary control for proper operation and condition The indicator light on the oil primary control provides lockout recycle and cad cell indications as follows R7184A B P U INTERRUPTED ELECTRONIC OIL PRIMARY 1 Flashing at 1 Hz 1 2 second on 1 2 second off system is locked out or in restricted mode 2 Flashing at 1 4 Hz 2 seconds on 2 seconds off control is in recycle mode VALVE ON DELAY TIME 15 SEC FIXED BURNER MOTOR OFF DELAY TIME DELAY TIMES OMIN 2MIN 4 MIN 6 MIN ENABLED DISABLED SHADED AREA IS SWITCH HANDLE POSITION M17535 Fig 8 Switch settings for burner off delay times 3 On cad cell is sensing flame 4 Off cad cell is not sensing flame Table 2 Switch Settings and Delays Delay Timings DIP Switch Settings Burner Motor Off Delay ar age S 3 Enable Disable seconds R7184U R7184P S 1 S 2 R7184U R7184P 0 0 X X Off 15 0 0 5 Off Off On 15 2 Off On On 15 4 On Off On 15 6 8 On On On X Don t Care S 3 not provided on R7184P models Cad Cell Resistance Check For proper operation it is important that the cad cell resistance is below 1600 ohms During a normal call for heat once the control has entered the Run mode press
10. et count returns to zero each time a call for heat is successfully completed To reset from restricted mode Press and hold the reset button for 30 seconds When the LED flashes twice the device has reset SPECIFICATIONS Models Table 1 lists the major features and the applicable wiring diagram numbers for the R7184 Timing Safe Start Check 5 seconds approximately Valve on Delay 15 seconds Burner motor off Delay 0 2 4 or 6 minutes field selectable using DIP switch positions 1 and 2 NOTE For universal R7184U model valve on delay and burner motor off delay timings can be enabled values as listed or disabled values are zero in the field using DIP switch position 3 Lockout 15 30 or 45 seconds factory programmed Recycle 60 seconds fixed Ignition Carryover 10 seconds fixed 69 1233 2 R7184A B P U INTERRUPTED ELECTRONIC OIL PRIMARY Electrical Ratings Inputs Voltage 102 to 132 Vac 120 Vac nominal Current 100 mA plus burner motor valve and ignitor loads Frequency 60 Hz Outputs Relay Contacts Burner 120 Vac 10 full load amperes FLA 60 locked rotor amperes LRA Valve 120 Vac 1A Ignitor 120 Vac 360 VA Alarm 30 Vac 2A Thermostat Current Available 100 mA NOTE Reduce burner FLA rating by Ignitor load For example if the ignitor draws 3A 120 Vac 360 VA reduce the burner motor FLA to 7A Environmental Ratings Operating Ambient Temperature 40 F 40
11. iring diagram for 24 Vac thermostat and R7184 for valve on delay burner motor off oil burner system 69 1233 2 LINE VOLTAGE THERMOSTAT OR AQUASTAT JUMPER CONTROL BURNER MOTOR gt INTERRUPTED IGNITOR INTERMITTENT See gt 1TO I REMOTE 1 ALARM ALARM CAD CIRCUIT Lesovs LEGEND Z SCREW TERMINAL gt 1 4 IN QUICK CONNECT TERMINAL A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED M17186A A OPTIONAL FEATURE ON SELECT MODELS Fig 7 Typical wiring diagram for line voltage Aquastat thermostat and R7184B P U for valve on delay burner motor off delay oil burner system Simulate ignition failure 1 Follow starting procedure to turn on burner but do not open oil supply hand valve 2 Observe that safety switch locks out approximately within safety switch timing as indicated on the label Indicator light flashes at 1 Hz rate Ignition and motor stop and oil valve closes OPERATION The R7184 is a microprocessor based control The indicator light provides diagnostic information for lockout recycling and patented cad cell status There is a manual reset button to exit the lockout mode and enter the idle mode Operation is shown in Table 4 TROUBLESHOOTING AND MAINTENANCE IMPORTANT Due to the potential hazard of line voltage only a trained experienced service technician should perform the troubleshooting procedure This control contains no field s
12. ng red reset button Indicator light stops flashing Go to step 7 Indicator light continues to flash at 1 Hz rate Verify that control is not in restricted mode see footnote a If not in restricted mode replace R7184 69 1233 2 R7184A B P U INTERRUPTED ELECTRONIC OIL PRIMARY Table 5 Troubleshooting Information Continued Procedure Status Corrective Actions 7 Listen for spark after burner turns on Ignition is off Spark ignitor could be defective Check for line after a 2 second delay voltage at ignitor terminals If line voltage is present replace R7184 Ignition is on Go to step 8 Ignition is on but no oil is being sprayed into the combustion chamber Wait for Valve On Delay to complete R7184B P and U Check oil valve oil valve wiring pump and oil supply 8 Check indicator light after flame is established but before oil primary control locks out Indicator light is on until the control locks out and starts flashing during lockout Replace R7184 Indicator light stays off Go to step 9 9 Check cad cell sighting for view of flame Disconnect line voltage power and open line switch Unplug cad cell and clean cad cell face with soft cloth Check sighting for clear view of flame Place cad cell back in socket e Reconnect line voltage power and close line switch Start burner Burner locks out Go to step 10 B
13. ns are correct control enters Idle mode Thermostat or Aquastat Control calls for heat 1 2 3 Shorts across T T terminals on as call for heat in warm air system and or provides power to limit terminals in hydronic system Safety Period 4 seconds internal and external check for flame or light If flame or light is detected control remains in Idle mode When flame or light is not present a R7184A U if valve on delay is disabled will apply power to the burner motor and ignitor b R7184B P U if valve on delay is enabled will apply power to the burner motor and ignitor enter complete valve on delay period and then apply power to the valve Control enters Trial for Ignition period a Monitors burner for flame b When flame is not detected 1 Enters lockout mode after lockout time of 15 30 or 45 seconds 2 Shuts off valve ignitor and burner motor 3 Flashes indicator light at 1 Hz 1 2 second on 1 2 second off 4 Depress reset button to return to power up sequence c When flame is detected Carry Over period begins Control enters Ignition Carry Over period continues to spark for 10 to 30 seconds a Turns on indicator light b If flame is lost and lockout time has not expired R7184 returns to Trial for Ignition period c If flame is lost and lockout time has expired R7184 enters Recycle Mode Carry Over time expires ignitor turns off Enters Run Mode a Flame is monitored until
14. to step 5 69 1233 2 R7184A B P U INTERRUPTED ELECTRONIC OIL PRIMARY Table 5 Troubleshooting Information Continued Procedure 4 Shield cad cell from external light Status Indicator light turns off Corrective Actions Eliminate external light source or permanently shield cad cell Indicator light stays on Replace cad cell with new cad cell and recheck If indicator light does not turn off remove cad cell leadwires from R7184 and recheck If indicator light turns off replace cad cell bracket assembly Refer to TRADELINE Catalog for bracket part numbers If indicator light does not turn off replace controller 5 On warm air systems jumper thermostat T to T terminals on R7184 On hydronic systems jumper Limit terminal and L1 of R7184 IMPORTANT First remove one thermostat lead Burner starts Trouble in thermostat or limit circuit Check thermostat or limit wiring connections Burner does not start Disconnect line voltage power and open line switch Check all wiring connections e Tighten any loose connections and recheck If burner does not start replace R7184 Condition Burner starts then locks o second off ut on safety with indicator light flashing at 1 Hz rate 1 2 second on 1 2 1 Check that limit switches are closed and contacts are clean 2 Check for line voltage power at the oil primary control Voltage
15. uipment damage Location 1 Mount on a 4 in by 4 in junction box directly on the main burner or inside the appliance cabinet In replacement applications mount in the same location as the old control See Fig 1 Make sure the operating temperatures are within the ambient temperature range see Specifications section 2 Before mounting the control make line voltage connections as shown in Fig 2 through 7 Splice lines with solderless connectors Do not exceed load ratings shown on the device label 3 If necessary use the control as a template to mark and drill new mounting holes 4 Mount using No 6 screws obtained locally 69 1233 2 BURNER M17180A Fig 1 Mounting R7184 on junction box WIRING 1 Make sure wiring complies with all local codes and ordinances 2 After mounting make low voltage connections to the screw terminals see Fig 2 through 7 3 Strip leads 3 8 in 10 mm and insert under terminal screw See Fig 1 4 Connect thermostat leads to T T Switch Settings Figure 8 and Table 2 provide the switch settings for the R7184U R7184A B P U INTERRUPTED ELECTRONIC OIL PRIMARY CHECKOUT Start System A WARNING Fire Hazard Can cause serious injury or death Make sure combustion chamber is free of oil and or oil vapor before starting system INTERRUPTED L INTERMITTENT BURNER MOTOR L1 CAD CELL
16. urner keeps running System is okay 10 Check cad cell Disconnect line voltage power and open line switch e Remove existing cad cell and replace with new cad cell e Disconnect all wires from thermostat terminals to be sure there is no call for heat Reconnect line voltage power and close line switch Expose new cad cell to bright light such as a flashlight Indicator light is on Place control back on burner Go to step 6 Indicator light is off Go to step 11 a Check cad cell bracket assembly Disconnect line voltage power and open line switch Remove cad cell wires from quick connect connectors on the R7184 and leave control leadwires open Apply power to device Place jumper across cad cell terminals after burner motor turns on Indicator light is on Replace cad cell bracket assembly Refer to TRADELINE Catalog for bracket part numbers Indicator light is off Replace R7184 Honeywell Home and Building Control Home and Building Control Honeywell Inc Honeywell Plaza P O Box 524 Minneapolis MN 55408 0524 69 1233 2 G R Rev 5 00 Honeywell Limited Honeywell Limit e 155 Gordon Baker Road North York Ontario M2H 3N7 Printed in U S A on recycled paper containing at least 10 post consumer paper fibers www honeywell com
Download Pdf Manuals
Related Search