Oil Primary Install Instructions

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INSTALLATION INSTRUCTIONS

69-1459-06

R7184A,B,G,P,U

Electronic Oil Primary,

EnviraCOM™ Enabled

APPLICATION

The R7184A,B,G,P,U Electronic Oil Primary is a line

voltage, safety rated, oil primary control for residential oil

fired burners used in boilers, forced air furnaces and

water heaters. The R7184A,B,G,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 (either interrupted or intermittent)

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

UL296. 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.

EnviraCOM™ enabled R7184’s can be used with

EnviraLink® monitoring systems and hand-held

diagnostics. Use only R7184P and U models for

networking with other EnviraCOM™ enabled devices.

FEATURES

Thermostat(s)

The oil primaries are compatible with both standard

thermostats and EnviraCOM™ communicating

thermostats.

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

lockout timing will be extended to four 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 (as applicable). 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 until the light

emitting diode (LED) flashes (approximately 30

seconds).

Data Port

Controls are designed to allow networking and upgrade

modules to be added in the field by simply plugging them

into the data port/network. (See Fig. 2.)

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 once for

one second, the device has reset.

T-T Jumper

Select models have a pre-installed T-T jumper resistor.

To remove, use side-cutting pliers to cut the jumper. (See

Fig. 2.)

Summary of content (12 pages)

PAGE 1
R7184A,B,G,P,U Electronic Oil Primary, EnviraCOM™ Enabled INSTALLATION INSTRUCTIONS APPLICATION The R7184A,B,G,P,U Electronic Oil Primary is a line voltage, safety rated, oil primary control for residential oil fired burners used in boilers, forced air furnaces and water heaters. The R7184A,B,G,P,U used with a cad cell flame sensor, operates an oil burner and optional oil valve.
PAGE 2
R7184A,B,G,P,U ELECTRONIC OIL PRIMARY, ENVIRACOM™ ENABLED Lockout Mode 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. The R7184 will enter the lockout mode when: • • • • Flame is detected during valve-on delay. When flame is not established during Trial for Ignition. When flame is lost three times in one call for heat.
PAGE 3
R7184A,B,G,P,U ELECTRONIC OIL PRIMARY, ENVIRACOM™ ENABLED INSTALLATION IGNITION TRANSFORMER When Installing This Product… 1. 2. 3. 4. R7184 Read these instructions carefully. Failure to follow instructions can damage the product or cause a hazardous condition. Check ratings given in these instructions and on the product to make sure the product is suitable for your application. Make sure the installer is a trained, experienced service technician.
PAGE 4
R7184A,B,G,P,U ELECTRONIC OIL PRIMARY, ENVIRACOM™ ENABLED 5. Safety switch locks out approximately in safety switch timing indicated on label. Indicator light flashes 1/2 second on, 1/2 second off. Ignition and motor stop and oil valve closes. R7184A, B, G … … L1 L1 L1 … … 2. AQUASTAT OR OTHER LIMIT L1 M27365 Fig. 5. R7184 Limit wiring for line voltage thermostat, Aquastat, or other Limit.
PAGE 5
R7184A,B,G,P,U ELECTRONIC OIL PRIMARY, ENVIRACOM™ ENABLED T8635L 3 T T/3 2 1 2 C7089B OUTDOOR TEMPERATURE SENSOR 1 1 1 L7224/48 2 3 L1 T 3 1 2 L1 (HOT) 1 5 IGNITOR SYSTEM TRANSFORMER BURNER MOTOR 3 VALVE T CAD CELL SCREW TERMINAL W2 RH RC Y1 COOL 1 RELAY Y2 6 ENVIRACOM™ TERMINAL 1/4 IN. QUICK CONNECT TERMINAL SOLDERLESS WIRE CONNECTOR 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 OPTIONAL FEATURE ON SELECT MODELS.
PAGE 6
R7184A,B,G,P,U ELECTRONIC OIL PRIMARY, ENVIRACOM™ ENABLED 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. (See Fig. 2.) Operation is shown in Table 4. 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.
PAGE 7
R7184A,B,G,P,U ELECTRONIC OIL PRIMARY, ENVIRACOM™ ENABLED Table 2. Switch Settings and Delays. Delay Timingsa DIP Switch Settings (Fig. 12) Burner Motor-Off Delay (minutes) Valve-On Delay (seconds) R7184U S-3 Enable/Disable R7184P S-1 S-2 R7184U 0 0 — X X Off 15 0 0.5 Off Off On 2 2 Off On 4 4 On Off 6 8 On On R7184P b X Don’t Care. a Specific models may have different timings. Be sure to check device label. b S-3 not provided on some R7184P models; refer to device label.
PAGE 8
R7184A,B,G,P,U ELECTRONIC OIL PRIMARY, ENVIRACOM™ ENABLED Table 4. R7184 Operation. External Action Power applied to control. Thermostat or Aquastat® Control calls for heat. R7184 Action Internal safety check conducted. If no light or flame is detected and all internal conditions are correct, control enters Idle Mode. 1. 2. 3. 4. 5. 6. 7. Call for heat is satisfied. 1. 2. Reset Button pushed two times without device completing a call for heat. 69-1459—06 1. 2. 3.
PAGE 9
R7184A,B,G,P,U ELECTRONIC OIL PRIMARY, ENVIRACOM™ ENABLED Table 5. Troubleshooting Information .a 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).
PAGE 10
R7184A,B,G,P,U ELECTRONIC OIL PRIMARY, ENVIRACOM™ ENABLED Table 5. Troubleshooting Information (Continued).a Procedure 7. Status Corrective Actions Reset oil primary control by pushing Indicator light stops Go to step 8. in and releasing red reset button. flashing. Indicator light Verify that control is not in restricted mode. If not in continues to flash at restricted mode, replace R7184. 1/2 second on, 1/2 second off. 8. Listen for spark after burner turns on Ignition is off.
PAGE 11
R7184A,B,G,P,U ELECTRONIC OIL PRIMARY, ENVIRACOM™ ENABLED 11 69-1459—06
PAGE 12
R7184A,B,G,P,U ELECTRONIC OIL PRIMARY, ENVIRACOM™ ENABLED Automation and Control Solutions Honeywell International Inc. Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Toronto, Ontario M1V 4Z9 customer.honeywell.com ® U.S. Registered Trademark © 2008 Honeywell International Inc. 69-1459—06 M.S. Rev.