Burnham 8HE Series Installation, Operating And Service Instructions page 11

2
Boiler Assembly
K. Install Pilot/Main Burner Assembly. See Figure 2-7.
Assembly is located in Combination Boiler Parts
and Control Carton. Verify assembly is properly
located on support bracket in Base Rear Panel,
seated on Main Burner Orifice, and secured with
hitch pin clip.
L. Burner Air Shutters. See Figure 2-7. (On
Packaged Boilers, Front Door and Burner Access
Panel(s) must be removed to make adjustments.)
Initial setting of burner air shutters should be
between fully open and approximately 11/16 in.
between front edge of Burner Air Shutter and
burner mounting ring should be approximately
11/16 in. To adjust this distance, loosen screw at
top of air shutter and slide into correct position.
Then tighten screw. (Replace Burner Access
Panel(s) and Front Door on Packaged Boilers.)
For Packaged Boiler, proceed to Section 3: Water
Trim and Piping.
M. Attach Flame Roll-out Switch to Burner Access
Panel. See Figure 2-6. Flame Roll-out Switch and
hardware are located in Combination Boiler Parts
and Control Carton. Flame Roll-out Switch is a
single use device - do not test with heat - switch
cannot be reset.
1. Cut insulation from semicircular notch at right
end of the burner access panel.
111828-01 - 1/23
(continued)
Figure 2-5: General Assembly (Knockdown Boilers)
8HE Installation, Operating & Service Instructions
2. Attach Flame Roll-out Switch Mounting Bracket
to burner access panel with (1) #8 x ½ in. lg.
sheet metal screw.
3. Attach Flame Roll-out Switch to mounting
bracket with (1) #8 x ¾ in. lg. sheet metal
screw.
N. Install Burner Access Panel(s). Locate Burner
Access Panel(s) in Combination Boiler Parts and
Control Carton. Engage Burner Access Panel
holes with projections on Base Front Panel. See
Figure 5.
O. Install Electro-Well and Immersion Well.
1. Remove 3/4 NPT x 1 in. Electro-Well (black
plastic) from Combination Boiler Parts and
Control Carton.
2. Insert Electro-Well in Tapping D. See Figure
2-3.
3. Insert 3/4 NPT x 3 in. Immersion-Well
(brass) in Tapping E. If vertical gas piping
is to be installed inside of boiler jacket, it is
recommended that second limit be installed in
system piping.
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