Sanyo launches R410A replacement for R22 systems
Sanyo Air Conditioners has developed an approach to enable existing R22 air-conditioning systems to be converted to R410A using existing pipework, reducing cost by about 30% and dramatically reducing installation time. The R22 Renewal system can be used with existing Sanyo systems and virtually all types of R22 systems from other leading manufacturers. It can also be applied to R407C systems.
On most installations, existing wiring can also be used. Any flare connections will need to be replaced to cope with the higher working pressures of R410A.
With PACi split systems, a simple oil test is required to establish that the system has not suffered a compressor burn-out. Pipework is also checked to ensure it is not damaged and that wall thicknesses are within acceptable guidelines. For VRF systems, checks are also carried out on pipe lengths and branch networks to ensure they meet current design criteria.
Existing indoor and outdoor units are then replaced with current Sanyo products. For split systems, the outdoor unit is selected from the Classic, Standard or Elite ranges — depending on the efficiency required. For VRF systems, any of the company’s range of 2- or 3-pipe options can be applied.
Installers do not need any special training to carry out Renewal conversions. Refrigerant is reclaimed in the normal way. On VRF installations, the suitability of pipework is confirmed by a Sanyo distributor or the manufacturer.
Bob Cowlard, Sanyo’s sales and marketing general manager, says, ‘R22 Renewal enables R22 plant to be quickly replaced with modern, high-efficiency air conditioning — saving about a third or more on replacement costs and delivering significant ongoing savings in energy costs. It is a win-win for all concerned, including the environment.’
