Operation; Troubleshooting And Maintenance - Honeywell R7184A Installation Instructions Manual

R7184A,B,P,U INTERRUPTED ELECTRONIC OIL PRIMARY
R7184
JUMPER
T
L1
T
L2
BURNER
MOTOR
INTERRUPTED
IGNITOR
INTERMITTENT
TO
REMOTE
CAD
ALARM ALARM
2
CELL
CIRCUIT
LEGEND: SCREW TERMINAL
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
2 OPTIONAL FEATURE ON SELECT MODELS.
3
VALVE MAY BE ADDED AS SHOWN.
Fig. 5. Typical wiring diagram for line voltage
Aquastat® thermostat and R7184 for an oil burner
T8600
RC
FAN RELAY
G
R7184
Y
L1
T
R
LIMIT
T
W
L2
VALVE
BURNER
MOTOR
INTERRUPTED
IGNITOR
INTERMITTENT
TO
REMOTE
CAD
ALARM ALARM
2
CELL
CIRCUIT
LEGEND: SCREW TERMINAL
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
2
OPTIONAL FEATURE ON SELECT MODELS.
Fig. 6. Typical wiring diagram for 24 Vac thermostat
and R7184 for valve-on delay/burner motor off oil
burner system.
69-1233—2
LINE VOLTAGE
THERMOSTAT
LIMIT
OR AQUASTAT®
CONTROL
VALVE
3
BURNER
MOTOR
IGNITOR
CAD
CELL
JUNCTION
BOX
1/4 IN. QUICK CONNECT TERMINAL
system.
COOLING
CONTROL
LIMIT
OIL
VALVE
BURNER
MOTOR
IGNITOR
CAD
CELL
JUNCTION
BOX
1/4 IN. QUICK CONNECT TERMINAL
1
L1
HOT
L2
JUMPER
TO
REMOTE
ALARM
2
CIRCUIT
LEGEND:
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
M17184B
2
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:
L1
1. Follow starting procedure to turn on burner, but do
(HOT)
L2
not open oil supply hand valve.
1
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.
1
L1
HOT

OPERATION

L2
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
M17185A
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:
4
R7184
L1
T
LINE VOLTAGE
LIMIT
THERMOSTAT
T
OR AQUASTAT®
CONTROL
L2
VALVE
OIL
VALVE
BURNER
BURNER
MOTOR MOTOR
INTERRUPTED
IGNITOR
IGNITOR
INTERMITTENT
CAD
ALARM CAD
CELL
CELL
JUNCTION BOX
SCREW TERMINAL 1/4 IN. QUICK CONNECT TERMINAL
1
LIMIT
L1
HOT
L2
M17186A