R7184A,B,P,U INTERRUPTED ELECTRONIC OIL PRIMARY

69-1233—24

Fig. 5. Typical wiring diagram for line voltage

Aquastat® thermostat and R7184 for an oil burner

system.

Fig. 6. Typical wiring diagram for 24 Vac thermostat

and R7184 for valve-on delay/burner motor off oil

burner system.

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-serviceable 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:

L2
1
R7184
IGNITOR
M17184B
L1
HOT
1
CAD
CELL
2
2
BURNER
MOTOR
L2
BURNER
MOTOR
INTERMITTENT
IGNITOR
INTERRUPTED
CAD
CELL
L1
JUNCTION
BOX
ALARM
T
T
LEGEND:
TO
REMOTE
ALARM
CIRCUIT
SCREW TERMINAL 1/4 IN. QUICK CONNECT TERMINAL
LIMIT
JUMPER LINE VOLTAGE
THERMOSTAT
OR AQUASTAT®
CONTROL
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
OPTIONAL FEATURE ON SELECT MODELS.
VALVE MAY BE ADDED AS SHOWN.
3
3
VALVE
L2
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
OPTIONAL FEATURE ON SELECT MODELS.
1
R7184
M17185A
L1
HOT
1
CAD
CELL
2
2
OIL
VALVE
BURNER
MOTOR
IGNITOR
L2
BURNER
MOTOR
INTERMITTENT
IGNITOR
VALVE
INTERRUPTED
CAD
CELL
LIMIT
L1
JUNCTION
BOX
ALARM
T
T
LEGEND:
TO
REMOTE
ALARM
CIRCUIT
SCREW TERMINAL 1/4 IN. QUICK CONNECT TERMINAL
LIMIT
T8600
RC
G
Y
R
W
L1
(HOT)
L2 1
FAN RELAY COOLING
CONTROL
L2
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
OPTIONAL FEATURE ON SELECT MODELS.
1
R7184
M17186A
CAD
CELL
2
2
OIL
VALVE
BURNER
MOTOR
IGNITOR
L2
BURNER
MOTOR
INTERMITTENT
IGNITOR
VALVE
INTERRUPTED
CAD
CELL
LIMIT
L1
JUNCTION BOX
ALARM
T
T
LEGEND:
TO
REMOTE
ALARM
CIRCUIT
SCREW TERMINAL 1/4 IN. QUICK CONNECT TERMINAL
L1
HOT
1
JUMPER
LINE VOLTAGE
THERMOSTAT
OR AQUASTAT®
CONTROL
LIMIT