Air Shutter Adjustment - Regency L390E Owner's Manual

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Owners & installation manual (52 pages)

Table Of Contents

Table of Contents

INSTALLATION

Air Shutters are required to increase or decrease the amount of air that is

mixed with the fuel before combustion. This will have an affect on how well

the fuel combusts and how the ﬂ ame physically appears.

Low primary air will leave a taller, yellower ﬂ ame while higher primary air will

leave a lower, bluer ﬂ ame.

This setting is largely for appearance, however, not enough primary air may

lead to carboning, sooting or a ﬂ ame that reaches the top of the ﬁ rebox.

Situations that may require more primary air are; units that are burning

propane, units installed at higher elevations or units that are run on high

most of the time.

The L390E / HZI390E is equipped with an air shutter that is accessible from

outside the ﬁ rebox and can be adjusted during operation.

Aeration adjustments should only be made after the unit has been on for 30

minutes to 1 hour.

Slide the Air Shutter Lever towards you to increase the primary air setting.

Slide the Air Shutter away from you to decrease the primary air setting.

Below you will see a chart showing the minimum primary air settings.

These are set from the factory, but due to fuel conversions or installation

conditions, the air setting may need to be adjusted.

Unit

Fuel Type

L390E

HZI390E

CAUTION: Carbon will be produced if air shutter is closed too much.

Note: any damage due to carboning resulting from improperly setting

the aeration controls is NOT covered under warranty.

Note: Aeration Adjustment should only be performed by an authorized

Regency Installer at the time of installation or service.

First Fire & Aeration