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Ducted Systems, refrigerated

“Refrigerated Ducted Airconditioning provides year round comfort.”

Refrigerated Air Conditioning has become increasingly popular in recent years because it can provide comfort in summer & winter at a selected temperature range of 18 to 25 degrees.

How do they work? There are two separate mechanical parts. An outdoor compressor and an indoor consol/fan coil. These are connected by electrical controls and refrigerated copper piping.

  • An outdoor compressor unit compresses liquid into a gas state to allow the refrigeration effect to take place, exactly the same way as does your home refrigerator. The compressed gas is transferred through the connecting copper pipe the consol installed inside your home or ceiling space.
  • An indoor unit/consol basically consists of a fan and a coil ( similar to a car radiator appearance). The fan is connected and then controlled by a room installed thermostat that draws the air from inside the home, passes it through a filter and then recirculates throughout your home approximately 10 times each hour.

How much does it cost to run?
Room split consols approx. $15 to $25per week, ducted $20 to $40per week

How do I compare products? Well known brand names are a safe option and established specialist retailers generally only sell reliable and proven products. Outside compressor noise level should be a prime consideration. The lower the decibel rating of the unit, the happier you neighbours will be. Also, new “Inverter” products, particularly units above 6kw are superior in all functions than non-Inverter models and “inverter” operating costs are about 30% less.


Installation, what’s involved? Ducted systems in particular, require a lot of ducting, fittings (none of which are supplied by the machine maker) and labour, and represent about the same cost as the machine. This provides sellers the opportunity to vary the size, quality and labour standard to reduce the selling price. An area many prospective buyers overlook.

What is Zoning? Refrigerated Air Conditioning is often zoned to keep the purchase and running costs to minimum. Typically, the house is zoned according to the families’ lifestyle. How it works is by a series of dampers [gates] that direct the flow of air in the ducting system to one area or another similarly to that of your home reticulation. A control panel inside your home is provided for convenient “zone” use.

Do I need three phase power? Generally no for most homes. However, larger homes may be more suited to three phase.

Designing the right system: Rarely are two homes or two families needs [including budget] the same. This is why at GAS&AIR we focus on three areas:

  • Careful analysis of the home and family needs and available budget
  • Determine from this the correct system design
  • Select the appropriate mahine make and installation materials
  • Confirm our proposal will meet our clients requirements

GAS&AIR designs systems from the “Two Zone” or “Mini-Ducted” systems, for the apartment, villa or retirement home through to multi zone and multi unit systems for mansions.

How much do they cost to Purchase?

  • As a guide the “Two Zone” systems would start from $4500.00. This would give a day and a night zone.
  • The Perth family home will start from $8000.00, say 8 outlets and three zones. A 4 bed, 2 bath home generally requires 12 outlets and 5 zones…
    An all up cost of $9000 to $12000.

Can I improve the air quality? Yes. To improve air quality, many people choose to filter the air beyond what is required to protect the indoor coil.
A number of different grades of filter material are available.

What after sales maintainence is required? We recommend a yearly preventive maintenance service be conducted two years after purchase (cost approx. $150.00). Regular Return-air filter cleaning is required.

Gas & Air Ducted Home Refrigerated Systems
“Gas & Air Ducted Home Refrigeration Systems are individually designed for your lifestyle, budget and the architectural features of your home.”

 

"Gas & Air Mini Ducted Systems are cost effective, aesthetically pleasant, quiet and flexibile."

The “Two Zoned systems are cost effective option and have many benefits and ideally suited for the family who simply require one main area to be air conditioned during the day and at a flick of a switch transfer living comfort into several bedrooms. Two zoned systems have an approximate cost of $5000 to $6500.