Burnham K50 manual Installation of Pilot Safety Switch, Pilot Piping EO Control System

EO Control System

1.INSTALLATION OF PILOT SAFETY SWITCH AND

PILOT PIPING – Using two #10-32 x 2” MS and nuts, install the L62GB-3C pilot safety switch bracket on the manifold just to the right of the main burner with pilot.

Install L62GB-3C pilot safety switch on bracket using

Fig. 31

INSTALLATION OF PILOT SAFETY SWITCH

EO CONTROL SYSTEM

three #8 x ½” SMS. “IN” on pilot safety switch should be pointed in the direction of the Gas Train to which the pilot safety switch is to be connected, see Fig. 31.

Using ¼” OD Aluminum Tubing, connect the pilot valve installed in the manual shut-off valve in the gas train, to the inlet of the RV-12LT regulator (Packed in Gas Train Carton). Regulator should be above Gas Train and near front of boiler, see Fig. 32. Install 1/8” tee into outlet of regulator (USA boilers only) and, using ¼” OD tubing, connect outlet of tee to “IN” connection on pilotstat, see Fig. 32. Connect the Q309 thermocouple to pilot safety switch. Using ¼” OD aluminum tubing, connect the outlet of the pilotstat to the tubing or fittings connected to the pilot burner, see Fig. 32.

2.INSTALLATION OF BLEED PIPING – Using ¼” OD aluminum tubing, install a bleed line on both diaphragm valves, connect together, see Fig. 25 or 26 and run tubing to bleed line protruding from inside base, see Fig. 32. On boiler installed in Canada, run bleed line to outdoors.

3.INSTALLATION OF “EO” PANEL AND WIRING OF PILOT AND PILOTSTAT – Attach the EO mounting bracket with Controls, see Fig. 33, to both Upper and Lower Jacket End Panels, preferably on the same end as the Gas Train. Two holes in each Jacket Panel have been provided for this purpose. Use two #10-32 x ½”