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Figure 3 - coil detail & tightening sequence, Proper tightening sequence for top mount coil – Burnham Indirect - Fired Water Heater AL SL User Manual

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FIGURE 3 - Coil Detail & Tightening Sequence

Bolt

Steel Washer

Coil Plate

Plastic O-Ring

Housing

Tank

Flange

‘L’ Nut

Small

outside

O-ring

Large

inside

O-ring

Proper Tightening Sequence for Top Mount Coil

CAUTION: Does not require excessive force to seal properly.

3

4

7

5

3

Incorrect

Correct

Note: Same as car tire lugs