Start System - Honeywell R7284B Installation Instructions Manual

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
location as the old control. See Fig. 1. Make sure
the operating temperatures are within the ambi-
ent temperature range (see Specifications sec-
tion).
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
properly connected. Refer to oil primary label
and appliance 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 ter-
minal screw.
5. Connect thermostat leads to T-T (or 1, 2, 3 if
EnviraCOM™ is present), if required by installa-
tion.
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—09