It is essential that only fresh air be allowed to enter the combustion air system. Foreign
substances in the combustion system can create hazardous conditions. Particulate matter like
lint, combustible volatiles, dust, smog or chemicals (example, perchloroethylene, halogenated
compounds) in the combustion air supply to the equipment will cause damage or failure of the
burner and is not covered under warranty.
Eliminate potent
ial for high risk situations for particulate matter to be in the air supply (e.g.,
as the result of construction or maintenance activities). If foreign substances can enter the
air
stream, the combustion air inlet must be piped to an outside location. Failure to do so will void the
warranty.
Note: Ensure that there is adequate ventilation in the boiler room to correct standards. Lack of
vent
ilation will create a high temperature and cause control lockout. There is a minimum ventilation
requirement to supply the air for combustion.
Note: Do not keep exhaust fans running with windows, doors and vents closed, this will interfere with the
necessar
y boiler draught forced vent interlocks.
Note: see
Appendix A - VSRT Data Sheets for low and high level values.
Do not store chemicals such as perchloroethylene in the boiler house, the fumes may damage the boiler and
flue and cause the burner to lock out on flame failure.
A temperature exceeding 49 C in the boiler room may cause premature failure of electrical
components. Provisions should be made to maintain an ambient temperature of 49 C or less (the
panel box interior should not exceed 52 C).
Recommended boiler HSE temperatures should not exceed:
• Floor Level (0-100mm): 25 C
• Mid Level (1.5m above floor): 32 C
• Ceiling Level (0-100mm from ceiling): 40 C
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