resideo EnviraCOM R7284B Instructions D'installation page 3

Location
1. Mount on a 4 in. by 4 in. junction box, directly on
the main burner, or inside the appliance cabinet. In
replacement applications, mount in the same loca-
tion as the old control. See Fig. 1. Make sure the
operating temperatures are within the ambient
temperature range (see Specifications section).
2. Before mounting the control, make line voltage
connections as shown in Fig. 2 through 10. Splice
lines with solderless connectors. Do not exceed
load ratings shown on the device label.
3. If necessary, use the control as a template to mark
and drill new mounting holes.
4. Mount the device using No. 6 screws (not
included).
WIRING
WARNING
Electrical Shock Hazard.
Can cause severe injury, death or property
damage.
Disconnect power supply before beginning wiring
to prevent electrical shock or equipment damage.
More than one disconnect may be involved.
1. Make sure wiring complies with all local codes and
ordinances.
2. Check to make sure that line voltage wiring is prop-
erly connected. Refer to oil primary label and appli-
ance wiring diagram for color codes.
3. After mounting make low voltage connections to
the screw terminals (see Fig. 2 through 10).
4. Strip leads 3/8 in. (10 mm) and insert under termi-
nal screw.
5. Connect thermostat leads to T-T (or 1, 2, 3 if Envi-
raCOM™ is present), if required by installation.
Fig. 1. Mounting R7284 on junction box.
R7284B,P,U,G ELECTRONIC OIL PRIMARY, ENVIRACOM™ ENABLED
BURNER
M32085
CHECKOUT
Start System
WARNING
Fire or Explosion Hazard.
Can cause severe injury, death or property
damage.
Make sure the combustion chamber is free of oil
and/or oil vapor before starting system.
1. Open hand valve in oil supply line.
2. Make sure system is powered. Check circuit breaker
or fuse and close system switch, if provided.
3. Set thermostat to call for heat.
4. Make sure burner lights and operates until call for
heat ends. Note cad cell resistance while running.
5. Verify that burner turns off when thermostat call
for heat is satisfied.
DISPLAY
THERMOSTAT
TERMINALS
ENVIRACOM
TERMINALS
LED
THERMOSTAT
TERMINALS
ENVIRACOM
TERMINALS
Fig. 2. R7284 terminals, connectors, LED, reset button
and DIP switch locations.
LINE VOLTAGE CONNECTIONS
Fig. 3. R7284 wiring connections.
3
UP BUTTON
DOWN
BUTTON
i BUTTON
ENVIRACOM
DIAGNOSTIC
PLUG
UP BUTTON
DOWN
BUTTON
i BUTTON
ENVIRACOM
DIAGNOSTIC
PLUG
M32146A
CAD CELL CONNECTION
M32178A
69-2467EFS—11