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Enhanced backup unit. The RBU-27 has 27 heavy duty relays, up to 5 thermostats and 2 timers. The system is designed to come into action during primary controller failure, or during extreme temperatures. It is a five stage backup, 2 heating stages and 3 cooling stages. Each stage is powered from its own circuit breaker. Lighted indicators on the front panel tell you which stages are active. Up to 8 heaters and 16 fans can be connected to the system. The unique design gives you greater control in choosing the ventilation method, testing equipment, and emergency climate control (latch on/off). |
