Poorly installed or poorly maintained heating and hot water systems, specifically around control of water pressure inside the system, can cause Sunamp heat batteries to fail.

To prevent this, the following mandatory plumbing components must be installed to protect and maintain good working order and performance of Sunamp Thermino and UniQ direct and indirect heat batteries:

• Mains cold water pressure reducing valve (PRV)
• Mains back-expansion relief valve (BERV)
• Expansion vessel
• Hot water tempering valve
• Heat battery isolation valve
• Water conditioner, in areas with hard water
• Auto-bypass valve, for indirect models only

For full information on how to install mandatory components please download the Technical Bulletin.

Not fitting the mandatory components may lead to damage of the heat battery and invalidation of the warranty.

All mandatory components must be maintained in line with the manufacturer’s instructions. Poor maintenance of external components could damage the heat battery and lead to failure.

Please use this technical guidance in conjunction with the main installation manual for detailed instructions and requirements.