Product Overview | 8880 Panels
FEATURES
The 8880 family of single burner flame supervision panels is designed to start and stop individual burners located at the furnace or oven. Used in conjunction with a master panel in multi-burner systems or as a stand alone control when purge is not required, the 8880 family of burner boxes is a convenient, inexpensive and NFPA compliant control for numerous burner applications. The 8880 family can accommodate direct spark (with or without a low-fire valve), piloted and manually ignited systems. Flame rods, standard UVs and self-check UVs are all compat- ible. Designed around the Honeywell RM7890 Control, the 8880 family can accommodate remote or local burner start/stop and remote or local flame relay reset. Housed in a NEMA 4X enclosure, the clear front permits direct viewing of the flame relay and its status LED's without the loss of the weatherproof integrity. A quick glance reveals burner status. The panel is available with UL or Canadian UL label.
— NEMA 4X enclosure
— Stand alone or with master panel
— Supports DSI, piloted or manually lit systems
— Located at burner
— Lockout tag-out standard
— Optional KBD with fault history diagnostic & fl ame strength
APPLICATION/TYPICAL SEQUENCE OF OPERATION
In multi-burner applications where a master panel is used, the master panel (ordered separately) performs the purging and motor drive functions for multiple burner boxes. Through contact closures to the individual burner boxes the master panel confirms that a purge has been completed and the motor circuit has been driven to a light-off position. The master panel can also start the burner light-off sequence remotely or have the burner light-off be controlled at the burner box. Typical Sequence: 1) With power supplied to the burner box, cycle the ( RESET/OFF/ON ) to the ON position. This powers the flame relay and the green POWER LED on the flame relay comes on. 2) When the common operating limits and the purge complete permissive from master panel are made, the process control motor is at the low-fire or light-off position (indicated by a switch closure), the burner can be started. 3) Depress and hold the START pushbutton until the amber PILOT LED on the flame relay comes on. 4) The flame relay/control box then sequences through a burner start with status LEDs on the flame relay giving indication of the steps of the lighting sequence until the burner is lit. Once the burner is lit, a dry contact closes to indicate that the the burner is on. This contact can be used by the master panel. 5) If the burner dœs not complete its light-off sequence or if the burner gœs out after being lit, the red ALARM LED on the flame relay comes on, and a 120 VAC signal indicates an alarm condition that can be used by the master panel. 6) To reset the flame relay after an Alarm condition, turn the RESET/OFF/ON selector to the OFF position, and depress the blue reset button on the front of the flame relay inside the burner box. If the reset module or keyboard display module options are present, turning the RESET/OFF/ON selector to the RESET position (which will spring return to the OFF position can also be used to reset the flame relay.
Bulletin 8880 Page 2
Made with FlippingBook flipbook maker