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INSTALLATION INSTRUCTIONS FOR HERON 2.2

The Heron 2.2 is suitable for installation in most caravans & motorhomes. Installation in Commercial and

Industrial vehicles and equipment should be referred to AIRCOMMAND AUST for assessment of

suitability. The Heron System must be installed in accordance with national wiring regulations.

The capacity of the airconditioner to adequately cool or heat a van, is dependent on:

• The size of the van or vehicle.

• The thickness and quality of thermal insulation installed in the van.

• The expected outside or ambient conditions.

The Heron 2.2 is recommended for vans up to 5.2 m overall, but

assumes that wall and ceilings are insulated with a minimum of

25 mm of insulation, wool or foam. The Heron 2.2 may be used

in vans up to 7 metre provided the insulation is a minimum

38mm thick and all windows are double insulated. Windows

should all have shades or curtains as a minimum.

If the van is to be used mainly in extreme conditions (40°C plus),

then be conservative, i.e. ensure the best insulation is installed,

consider double glazed windows, and size the airconditioner

down to 4.8 m maximum.

Figure 1 External dimensions of condenser

DESCRIPTION OF THE HERON 2.2 SYSTEM

The HERON 2.2 is a split system,

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utilizing a condenser set (referred to

throughout this text as a CON/SET)

and an airhandler (referred to as an A/H).

The Con/set is designed for installation

beneath a bunk, settee, or in the bottom

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454

of a floor cupboard. Refer fig. 1 for dimensions.

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The A/H is designed for fitment into an overhead cupboard

Figure 2 External

or similar, and comes complete with facia and controls.

dimensions of air

See fig. 2.

handler

The A/H and CON/SET are coupled by means of a pair of

refrigerant lines, and a control cable. The pipework is not

supplied with the unit, but a standard 7 m control cable is.

Before proceeding with the installation, consider a number of important details that must be complied with

in the following description.

CHOOSING A POSITION FOR THE CON/SET

Generally, avoid installation on the left hand side (awning side), as the condenser set will discharge hot air

into this space.

Australia & UK (LHS of road) it is usual to install the con/set on the right hand side, either under a bunk,

settee or at the bottom of a floor cupboard. Conversly, continental Europe (RHS of road) the con/set should

be on the left hand side.

NOTE: Ensure that wherever the con/set is installed, reasonable access to the top of the unit is always

available, for service, and any shelving etc. above, must be easily removed. Also, the two line valves on the

back of the unit must be easily accessed.

The maximum length of pipework between the Con/set and the A/H is 5 metres. Installations exceeding this

may require extra refrigerant to be added to the system.