General Boiler Information; Gas Supply; Electrical Supply; Flue System - Baxi Luna 3 Comfort Series Installation And Servicing Instructions

The boiler requires a gas rate of 128.1 ft
The meter and supply pipes must be capable of delivering this quantity of gas in addition to the demand from any other
appliances in the house. The boiler requires at least a 3/4" gas supply pipe. The complete installation, including the meter,
must be tested for gas leak and purged.
The boiler requires a 120V 60Hz power supply. Ensure the electrical supply is polarised.
the boiler must be grounded.
There must only be one common isolator, providing complete electrical isolation, for the boiler and any external con-
trols.
Using PVC insulated cable 18 AWG x3C 105 °C.
All wiring must be installed in accordance with requirements of National Electrical Code and any additional national, state,
or local code requirements having jurisdiction. All wiring must be N.E.C. Class 1. Boiler must be electrically grounded in
accordance with the National Electrical Code, ANSI/NFPA No. 70-latest edition.
In Canada, installation must conform to CSA C22.1 Canadian Electrical Code Part 1 and any local codes.
3..1 Install room thermostat
Install room thermostat on an inside wall. Never install where it will be influenced by drafts, hot or cold water pipes, lighting
fixtures, television, sun rays or near a fireplace.
The boiler does not require any air vents in the room in which it is installed, or when installed in a cupboard or compart-
ment.
WarnInG :
If the heating is directly connected to a floor heating system, a safety overheating thermostat should be provided by the
installer.
3.4.1 concentrIc sYsteM
The flue assembly supplied for the boiler is 2.64 ft / 0.75 m in length + terminal.
For horizontal flues a minor deviation from the horizontal is allowable, provided it results in a downward slope towards
the terminal.
Additional flue components are available as follows:
3.28 ft / 1 m flue
90° bend
45° bend
Vertical flue terminal assembly. Refer to the separate installation instructions supplied with the assembly.
notes: If an extra 90° bend is used, this reduces the maximum flue length by 3.28 ft / 1 m. Each 45° bend used reduces
the maximum flue length by 1.64 ft / 0.5 m.
Under no circumstances must the flue length (including allowances for extra bends) exceed 4 m / 13.12 ft.
InstructIons pertaInInG to tHe Installer

3. general boiler information

3.1 gas supply

/h - 3.63m /h.
3 3

3.2 electrical supply

3.3 air supply

3.4 flue system

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95.188.3 - GB