Operator`s manual

Operator's Manual: Models CB-1500 & CB-2500 (230 V / 50 Hz)
3-9
Installing the Burner
Checking the Burner Nozzle and Electrodes
NOTE: The burner nozzle is factory installed. Both furnace models (CB-1500, CB-2500) use a Delavan
9-5 nozzle. The nozzle size is indicated on the nozzle as shown in Figure 3F on the following page. Refer also
to Appendix A at the back of the manual for additional specifications/instructions on the burner nozzle.
ATTENTION: Check the electrode settings as specified in Figure 3F. The electrode settings must be
correct for your burner to operate properly.
Installing the Energy Retention Disc
Installing the Energy Retention Disc at the Back of the Combustion Chamber
ATTENTION: DO NOT fire your furnace without the Energy Retention Disc in place, or combustion cham-
ber damage will occur. Handle the Energy Retention Disc carefully to avoid damaging it.
1. Refer to Figure 3A to review the proper positioning of the Energy Retention Disc.
2. Swing open the clean-out door on the furnace front to gain access to the combustion chamber.
3. Use a long rod to support the Energy Retention Disc as you guide it into position on the back of the
combustion chamber. The loop on the back of the Energy Retention Disc fits over the hook located on
the back of the combustion chamber.
Closing the Furnace Door
1. After the Energy Retention Disc has been installed, close the furnace clean-out door.
2. Tighten the four (4) lock-down nuts in a criss-cross pattern until all are snug.