7
Important:
If a particular interlock is not used, a jumper must be installed on the terminals of the
Interlock Annunciator Module wiring base which corresponds to that unused interlock. For example:
if the system has no high temperature switch and no need for auxiliary limits 5 and 6, a jumper
should be placed between terminals 55 and 56, 57 and 58, 58 and 59.
Important:
When a single fuel burner is used, a fuel selector switch is not necessary. However, the
fuel selection terminals for the unused fuel type must be jumped out.
When the fuel selector switch is in the GAS position, the 4 oil interlocks are ignored by The Burner-
Logix Control. When the switch is in the OIL position, the 3 gas interlocks are ignored.
INTERCONNECTING YZ300 (YZ320) TO BURNERLOGIX
Remove the RJ485 plug from the EXP port located on the underside of the BurnerLogix control.
Plug end of ED580 cable with ferrite core into EXP port of the BurnerLogix control. Plug the other
end of the ED580 cable into the EXP port located on the underside of the YZ300 (YZ320) Interlock
Annunciator.
For gas only:
connect terminal 45 to 49
For oil only:
connect terminal 49 to 53
CAUTION: All YZ300 (YZ320) wiring should not interfere with the safety function or
operation of any of the interlocks. Check each interlock for proper operation after wiring
Choose 4 or 8 foot cables.
Plug into EXP port of each control.
YZ300 (YZ320)
BURNERLOGIX Y or Z
ED580-2, -4, -8
While power is on and the interconnection between the YZ300 (YZ320) and BurnerLogix
has been established, if either the ED580 cable is unplugged or the YZ300 (YZ320) ceases
to communicate with the BurnerLogix control for 3 consecutive minutes, the BurnerLogix
(Y or Z) will move to lockout with a CHECK EXP MODULE message. Resetting the con-
trol with the ED580 cable unplugged will resume normal operation
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