QHT Boiler manual WARNING -Canadian, Identification

WARNING -Canadian

∙Operate the (gas, Oil, Electric) boiler periodically to ensure that it will operate satisfactory when needed.

∙DO NOT relocate or by-pass any of the safety controls in the original boiler installation.

∙The operation of the gas boiler must be verified for acceptance operation before and after installation of the add-on boiler by a gas filter who is recognized by a regulatory body.

Note: Only wood and bituminous coal can be burned in this boiler.

IDENTIFICATION

The 3WOOD Boiler is identified by:

∙The ETL Name Plate that MUST be applied by QHT Inc, so that it is legible when the 3WOOD is installed (for example, on the top panel as shown on page 20).

∙The ASME Plate is fastened to the front of the boiler on the casting.

Before Installing

WHEN SERVICING BOILER

∙To avoid electric shock, disconnect electrical supply before performing maintenance.

∙To avoid severe burns, allow boiler to cool before performing maintenance.

BOILER OPERATION

∙Do not block flow of combustion or ventilation air to boiler.

∙Should overheating occur do not disconnect electrical supply to circulator. Instead, open all the flow checks external to the Boilers.

∙Do not use this boiler if any part has been under water. Immediately call a qualified service technician to inspect the boiler and to replace any part of the control system.

∙Do not overload the boiler.

BOILER WATER

∙If you have an old system with cast iron radiators, thoroughly flush the system (without boiler connected) to remove sediment.

∙Do not use petroleum-based cleaning or sealing compounds in boiler system.

∙Use only inhibits propylene glycol which are specifically formulated for hydronic systems.

∙Continual fresh make-up water will reduce boiler life. Mineral buildup in heat exchanger reduces heat transfer, overheats the stainless steel heat exchanger, and causes failure. Addition of oxygen carried in by make-up water can cause internal corrosion in system components. Leaks in boiler or piping must be repaired at once to prevent make- up water.

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