Honeywell EnviraCOM R7284B Instructions D'installation page 2

R7284B,P,U,G ELECTRONIC OIL PRIMARY, ENVIRACOM™ ENABLED
• Soft Lockout: Caused by a temporary internal error
such as low voltage. The control recovers
automatically after the error is no longer detected.
• Hard Lockout: Caused by a failure internal to the
control or by a system fault such as flame out of
sequence. A Hard Lockout will result in a no heat
condition. To reset from Hard Lockout press and hold
the "i" button for 2 seconds.
• Restricted Lockout: Caused by a number of
consecutive hard lockouts on the same heat cycle. To
reset from a Restricted Lockout press and hold the "i"
button for ten seconds.
Cad Cell Resistance
Cad cell resistance can be checked without using an ohm
meter.
Basic Interface:
Press and release the "i" button. The resulting flashes
indicate the resistance. See Table 3.
Advanced Interface:
The cad cell resistance is shown on the display.
Valve-on Delays/Blower Motor-off
Delays
Select models may have fixed or adjustable delays for
valve open or blower motor off. The safety circuits will
check for flame during these delays and, if a flame is
present, will switch the control to lockout.
SPECIFICATIONS
Models:
Table 1 lists the major features for the R7284.
Timing:
Valve-on Delay: 0–30 seconds
Burner Off Delay: 0–8 minutes
Lockout: 15, 30 or 45 seconds.
Recycle: 60 seconds (fixed).
Ignition Carryover: 10 seconds (fixed).
Model Limit
R7284B No
R7284G No
R7284P Yes
R7284U Yes
INSTALLATION
When Installing This Product...
1. Read these instructions carefully. Failure to follow
instructions can damage the product or cause a
hazardous condition.
2. Check ratings given in these instructions and on the
product to make sure the product is suitable for your
application.
3. Make sure the installer is a trained, experienced
service technician.
69-2467EFS—05
Table 1. R7284 Models.
Valve
Yes Valve on delay only
No No on/off delays, intermittent ignition (wire igniter together with motor)
Yes On and off delays
Yes On and off delays
NOTE: Some models have adjustable Valve-on Delay,
Burner Off Delay, and Lockout timings.
Electrical Ratings:
Inputs:
Voltage: 102 to 132 Vac, 120 Vac nominal.
Current: 0.5A plus burner motor, valve and igniter
loads.
Frequency: 60 Hz.
Outputs:
Relay Contacts:
Burner: 120 Vac, 10 full load amperes (FLA), 60 locked
rotor amperes (LRA).
Valve: 120 Vac, 1A.
Igniter: 120 Vac, 3 A.
Low Voltage Shutdown: 80 Vac
Thermostat Current Available: 100 mA.
EnviraCOM™ Current Available: 150 mA.
NOTE: Reduce burner FLA rating by igniter load. For
example, if the igniter draws 3A (120 Vac, 360
VA), reduce the burner motor FLA to 7A.
Typical Component Wire Color Code:
White: Neutral.
Black: Line.
Orange: Motor.
Blue or Blue w/White Stripe: Igniter.
Violet: Valve.
Red: Limit.
NOTE: The R7284 is provided with 1/4" quick-connect
terminals.
Environmental Ratings:
Operating/Shipping Temperature: -40°F to +150°F
(-40°C to +66°C).
Display text may not be visible below -4°F (-20°C)
Humidity: 0% to 95% relative humidity at 104°F (40°C),
noncondensing.
Accessories:
W8735S3000 Alarm Module
Approvals:
Underwriters Laboratories Inc.: Recognized (File MP268).
Canadian Underwriters Laboratories Inc.
Notes
4. Use these instructions to check out the product
operation after installation.
WARNING
Electrical Shock Hazard.
Can cause severe injury, death or property
damage.
Disconnect power supply before beginning
installation to prevent electrical shock or
equipment damage. More than one disconnect
may be involved.
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