Burnham ES2 Manuel D’Utilisation

  Screw the water supply manifold into the 

boiler outlet tapping “O.”

  Orient the manifold with the relief valve on 

top.

  Screw the relief valve into manifold tapping 

“RV”.

  

  PIPE THE RELIEF VALVE DISCHARGE 

             to a location where it will not harm 

people or damage property. The relief valve may 

discharge scalding hot water or steam.

  BLOCKING THE RELIEF VALVE may 

             result in boiler explosion.

  Screw the temperature-pressure gage into 

manifold tapping “G”.

  Connect the system supply to the open end 

of the manifold "S" using a 1¼” male NPT 

fitting.

 Size gas piping according to Appendix C – Gas 
Piping

  SHUT OFF GAS SUPPLY before 

             servicing the boiler.

  ALL GAS PIPING MUST BE GAS 

             TIGHT.  Use gas rated thread compound 

on all threaded joints to avoid leaks, which may 

result in fire or explosion.

  SIZE GAS PIPING, regulators, valves, 

             and meters so as to provide an adequate 

gas flow and pressure to the boiler during 

operation. Failure to do so may cause poor 

combustion, noise, injury, or death.

  Remove boiler door, locate gas valve and 

remove plastic shipping plug.

  Thread a ¾" x 1½" nipple, a 90° street 

elbow, or a Honeywell flange onto the gas 

valve and pipe through the slot in the left 

jacket panel (Figure 5-a).  In Canada,  close 

nipples and street ells are not approved for 

use as gas piping.

  Pipe through the left jacket panel, and 

complete drip leg as shown (Figure 5-a).

General system piping guidelines are included in 
Appendix D—System Piping.
Additionally, for this particular boiler install piping 

shown below (Figure 6-a).

6-a

  Apply sealant to all threads.

5-a