3254
7
GB
INSTALLING THE BURNER
A) Burner Chassis
B) Combustion Head Assembly
1) Locking Nut
2) Mounting Plate surface
3) Insulation Gasket
Separate the combustion head of the burner from the chassis
(A) by removing the locknut (1). Install the combustion head
into the boiler.
Typical insertion depth, the front edge of the combustion head
is flush with the inside surface of the appliance mounting sur-
face (2).
Use this checklist prior to installation:
1) Check the input/output requirements of the appliance.
We suggest that the appliance output should be ap-
proximately 85% of input (85% efficiency).
2) Check the dimensions of the combustion chamber for correct sizing against the input requirements of the application.
3) Check that there is sufficient air for proper combustion and adequate ventilation.
Local codes should be followed. In the absence of local codes, refer to the NFPA Manual No. 31, CAN/CGA
B149.1 &. 2, ANSI Z223.1-1984 and Addendum 221.8A 1989.
4) Check that you have adequate space for servicing the equipment.
The Riello burner requires a minimum of 13 inches clear space behind the red cover.
This is required to allow easy removal of the cover for servicing and periodic maintenance.
5) Check that the chimney is of sufficient area to handle the exhaust gases.
Make sure the chimney is clear and there are no obstructions.
6) Barometric draft regulators must be of the double acting type, and must be installed in accordance with the
draft regulator manufacturer's instructions.
Single acting barometric dampers are not permitted.
For further clarification, refer to ANSI Z21.8-1984 and Z21.17A-1993.
IMPORTANT:
A vent shutoff system shall be applied to a barometric damper installed in the venting system at the
time of conversion of the appliance.
This will electrically disconnect the burner should there be a blockage in the vent (chimney).
The installer must identify the main electrical power switch and manual gas shut off valve, for emergency
conditions. The burner cover must be in place and secured before the burner is placed in operation.
13 2
AB
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