Pilot And Uv Scanner - CleaverBrooks CFC Operation, Service & Parts Manual

Pilot and UV Scanner (CFC 3300)
Maintenance of the UV scanner consists of periodic inspection and
cleaning. To inspect, unscrew the UV flame detector from the bracket.
Check to ensure that the flame viewing lens is clear and free of dust
or debris. Wipe with a clean rag if necessary.
When replacing the scanner, verify an unobstructed line of sight
through the scanner bracket to the burner canister.
The CFC 3300 uses an interrupted gas pilot in lieu of direct spark
ignition. The dual ignition electrode is the same component used in
direct spark models; it should be inspected regularly and cleaned or
replaced as needed. The spacing of the ignitor to the burner canister
should be 1/2" (see below).
Part No. 750-263
UV Scanner
Figure 5-7
1 1
"
2 16
Pilot Tube
Figure 5-8
Section 5 — Service and Maintenance
Scanner Bracket
REFRACTORY
5-5