Fit The Boiler; Clean System To Remove Sediment; Gas Supply; Electrical Supply - Baxi LUNA HT 1.450 Installation And Servicing Instructions

1 Lift the boiler and hang it on the wall.
2 Adjust the position of the boiler.
1. You must thoroughly flush the system (without boiler connected) to remove sediment. The high-efficiency heat exchanger
can be damaged by build up or corrosion due to sediment.
Note:
It is recommended that a water treatment product be utilized for sediment removal
2. For zoned systems, flush each zone separately through a purge valve. (If purge valves and isolation valves are not
already installed, install them to properly clean the system.)
3. Flush system until water runs clean and you are sure piping is free of sediment.
CAUTION
For installation that incorporates standing radiators and systems with manual vents at the high points. Starting with
the nearest manual air vent, open vent until water flows out, then close vent. Repeat procedure, working your way
toward furthest air vent. It may be necessary to install a basket strainer in an older system where larger amounts
of sediment may be present. Annual cleaning of the strainer may be necessary.
The HT 1.450 model requires a gas rate of 164.8 ft
pane Gas (LP) for HT 1.450 model and the HT 1.650 model requires a gas rate at 238.0 ft
92.0 ft /h (2.61 m /h) for Liquid Propane for HT 1.650 model. The meter and supply pipes must be capable of delivering
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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.
WARNING
The boiler and its gas connections must be leak tested before placing the boiler in operation.
The boiler requires a 120V 60Hz power supply. Ensure the electrical supply is polarized.
The boiler must be grounded.
There must only be one common isolator, providing complete electrical isolation, for the boiler and any external controls.
Using PVC insulated cable 18 AWGx3C 221 °F / 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.
3.6.1 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 compartment.
If it is provided with its own intake air vent refer to section 4.
INSTALLATION AND SERVICING INSTRUCTIONS

3.3 FIT THE BOILER

3.4 CLEAN SYSTEM TO REMOVE SEDIMENT

3.5 GAS SUPPLY

/h (4.67 m
3

3.6 ELECTRICAL SUPPLY

3.7 AIR SUPPLY

/h) for Natural Gas and 63.7 ft
3
14
/h (1.81 m /h) for Liquid Pro-
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/h (6.75 m /h) for Natural Gas and
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7110242.02 - en