Control technology
The ISR is completely modular in design, and with the right accessories you can control it remotely. That gives you easy control of all the functions - from heating circuits to storage tanks and weather compensation right up to linkups with solar units. There are 3 user and service levels that inform you about all data in plain text and in several languages. The straightforward, backlit graphic display means all the information is clear and easy to read.
 » ISR Plus brief instructions
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