Installation Guide

R7284B,P,U,G ELECTRONIC OIL PRIMARY, ENVIRACOM™ ENABLED
5 69-2467—01
Fig. 9. Wiring R7284P,U with EnviraCOM™
connections, for typical oil-fired boiler.
Fig. 10. Typical wiring diagram for EnviraCOM™
enabled thermostat and R7284P,U for an
oil-fired forced-air system.
IMPORTANT
System as shown in Fig. 10 is phase/polarity
sensitive. Make sure all input power is in the
same phase.
L2
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
REFER TO DEVICE LABEL FOR WIRE COLOR CODE.
VALVE IS OPTIONAL ON SPECIFIC MODELS.
ENVIRACOM™ TERMINAL 3 IS ALSO THE FIRST THERMOSTAT TERMINAL.
1
R7284
IGNITER
M32183
L1
1
CAD
CELL
2
3
3
4
4
2
2
2
BURNER
MOTOR
L2
B2
BURNER
MOTOR
IGNITER
VALVE
VALVE
CAD
CELL
L1
B1
LIMIT
JUNCTION
BOX
T
T
3
2
1
12T/3
1 2 3
LEGEND:
SCREW TERMINAL
1/4 IN. QUICK CONNECT TERMINAL
SOLDERLESS WIRE CONNECTOR
L7224/48
TH9421C
VisionPRO IAQ
AQUASTAT®
CONTROLLER
ENVIRACOM™
TERMINAL
T
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
REFER TO DEVICE LABEL FOR WIRE COLOR CODE.
VALVE IS OPTIONAL ON SPECIFIC MODELS.
FACTORY INSTALLER JUMPERS.
ENVIRACOM™ TERMINAL 3 IS ALSO THE FIRST THERMOSTAT TERMINAL.
1
M32184
2
3
4
5
LEGEND:
SCREW TERMINAL
1/4 IN. QUICK CONNECT TERMINAL
SOLDERLESS WIRE CONNECTOR
L2
R7284
IGNITER
L1
HOT
1
2
2
CAD
CELL
BURNER
MOTOR
L2
BURNER
MOTOR
IGNITER
CAD
CELL
L1
JUNCTION
BOX
T
T
3
2
1
LIMIT
LIMIT
VALVE
L1
(HOT)
L2
COOL 1
RELAY
FAN
RELAY
OT
OT
2
1
3
C7089B
OUTDOOR
TEMPERATURE
SENSOR
T
863
5L
W8635A
C
R
R
H
R
C
1
2
3
Y2
W2
Y1
G
W1
COOL 2
RELAY
4
SYSTEM
TRANSFORMER
1
3
5
ENVIRACOM™
TERMINAL
VALVE
2