Q: I’m having trouble getting a good connection on the barbed fittings in my TZI transformers and electrode boots. What is the best method to connect ignition cable to these items?
A: The TZI Transformers and many of the Electrode Adapters offered by Elster Kromschröder use a barbed fitting, also called a “spearlock anchor,” to achieve connection to the ignition cable. This style of connection was discussed in previous FAQs: Electrodes for Pilot and Industrial Burners #1 & Electrodes for Pilot & Industrial Burners #2. If you look inside the electrode adapter at this fitting, it resembles a screw.
The key elements of a trouble-free connection are:
2) Properly trim the wire to allow about 1/8 inch of the conductor to protrude from the insulation.
3) Fan out the wire (like a flower).
4) Using a punch or awl, create a small depression in the middle of the wire “flower.”
Following this procedure, you always get a solid electrical and mechanical connection — and eliminate a common failure point for good burner ignition or flame sensing.