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Honeywell R7184A User Manual

Honeywell burner user manual.
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
reduce 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
R7184A,B,P,U
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 reset 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

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   Summary of Contents for Honeywell R7184A

  • Page 1

    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.

  • Page 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).

  • Page 3

    60 seconds. 5. 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. R7184A,B,P,U INTERRUPTED ELECTRONIC OIL PRIMARY THERMOSTAT JUMPER REMOTE ALARM CIRCUIT LEGEND: POWER SUPPLY.

  • Page 4

    R7184A,B,P,U INTERRUPTED ELECTRONIC OIL PRIMARY R7184 JUMPER LINE VOLTAGE THERMOSTAT OR AQUASTAT® CONTROL BURNER MOTOR INTERRUPTED IGNITOR INTERMITTENT REMOTE ALARM ALARM CELL CELL CIRCUIT JUNCTION LEGEND: SCREW TERMINAL 1/4 IN. QUICK CONNECT TERMINAL POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

  • Page 5

    3. Make sure limit control is closed. 4. Check contacts between ignitor and the electrodes. 5. Check the oil pump pressure. R7184A,B,P,U INTERRUPTED ELECTRONIC OIL PRIMARY 3. On: cad cell is sensing flame. 4. Off: cad cell is not sensing flame. DELAY TIMES:...

  • Page 6

    Idle mode. 3. 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.

  • Page 7

    L1 of R7184.) IMPORTANT: First remove one thermostat lead. Condition: Burner starts, then locks out on safety with indicator light flashing at 1 Hz rate (1/2 second on, 1/2 second off). 1. Check that limit switches are closed and contacts are clean.

  • Page 8

    R7184A,B,P,U INTERRUPTED ELECTRONIC OIL PRIMARY Table 5. Troubleshooting Information (Continued). Procedure 7. Listen for spark after burner turns on (after a 2 second delay. 8. Check indicator light after flame is established, but before oil primary control locks out. 9. Check cad cell sighting for view of flame.

This manual also for:

R7184u, R7184b, R7184p

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