Honeywell R7184A Series Quick Start Manual page 8

R7184A,B,P,U SERIES 5 INTERRUPTED ELECTRONIC OIL PRIMARY, ENVIRACOM™ ENABLED
Table 3. Cad Cell Resistance When Sensing Flame.
Flashes Cad Cell Resistance in Ohms
1 Less than 400.
2 More than 400 and less than 800.
3 More than 800 and less than 1600.
4 More than 1600 and less than 5000.
R7184
L1
3
T
LIMIT
JUMPER
T
3
3
L2
ENVIRACOM™
2
TERMINAL
4
VALVE
1
3
BURNER
MOTOR
3
IGNITOR
TO
REMOTE
ALARM ALARM
2 CAD
CIRCUIT
CELL
LEGEND:
SCREW
SOLDERLESS
TERMINAL
WIRE CONNECTOR
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
2 OPTIONAL FEATURE ON SELECT MODELS.
REFER TO DEVICE LABEL FOR WIRE COLOR CODE.
3
4 ENVIRACOM™ TERMINAL 3 IS ALSO THE FIRST
THERMOSTAT TERMINAL.
Fig. 10. Typical wiring diagram for line voltage
Aquastat® thermostat and R7184P,U for valve-on
delay/burner motor-off delay oil burner system.
69-1459—4
LINE VOLTAGE
LIMIT
THERMOSTAT
OR AQUASTAT®
HOT
CONTROL
OIL
VALVE
BURNER
MOTOR
IGNITOR
CAD
CELL
JUNCTION
BOX
1/4 IN. QUICK
CONNECT TERMINAL
M17785B
LED
ON
LED
OFF
Fig. 11. Example of 800 to 1600 ohm cad cell
resistance reading (3 flashes).
VALVE ON DELAY TIME: 15 SEC. (FIXED)
BURNER MOTOR OFF DELAY TIME:
1
L1
L2
1 2
R7184U 0 MIN.
R7184P 0.5 MIN.
(SHADED AREA IS SWITCH HANDLE POSITION)
1 SELECT MODELS MAY HAVE DIFFERENT TIMINGS.
REFER TO DEVICE LABEL.
Fig. 12. Switch settings for burner-off delay times.
8
M19630A
1 2 1 2 1 2
2 MIN. 4 MIN. 6 MIN.
1
4 MIN.
2 MIN. 8 MIN.
DELAY TIMES:
3 3
ENABLED DISABLED
M17786