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Overview of Lennox Gll/GllR air heaters, their types, and input ranges.
Lists the contents included in the two packages for each Lennox warm air heater.
Provides detailed technical specifications for heaters designed to burn natural gas.
Covers general installation regulations, British Standards, and codes of practice.
Specifies suitable locations for the air heater, avoiding rooms with baths/showers and recommending bedroom exclusion.
Details requirements for consulting the local gas region for service pipes and meter adequacy.
Recommends flue materials, chimney lining, and connection procedures according to British Standards.
Outlines requirements for room/internal space air supply and cupboard/compartment air supply.
Covers material requirements for ducts and the provision of return-air paths for optimal system performance.
Specifies wiring requirements, mains connection methods, and fuse rating for the air heater.
Details clearances for floor mounting and steps for connecting ductwork and installing the heater.
Outlines essential checks for electrical, gas installation, air distribution, and pre-lighting procedures.
Step-by-step guide for safely lighting the heater, including crucial warnings and procedures.
Procedures for testing gas soundness, burner pressure, flame failure, and fan speed adjustments.
Instructions for safely switching off the heater for short and long periods.
Lists topics for servicing, including preparation, component removal, and cleaning procedures.
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