Fully Programmable Bacnet Boiler Room Controller

This Boiler Room Controller is fully programmable and can manage any arbitrary collection of boilers and pumps in a typical hydronic application. It is well suited to radiant heating of up to eight zones in a simple stand alone application or can be networked into much larger systems. It sets a new benchmark in the price/performance category, bringing full-fledged building automation features to a whole new class of smaller buildings. Access homes & buildings from a PC or over the net to monitor performance, increase comfort all while saving energy. Integrate into Tridium/Niagara and other existing Bacnet systems for full enterprise management.

Add your own programming in the easy to use ‘Control Basic’ language, here’s a couple simple lines which turn on a pump when the outside temp gets cold. Programs read almost like a sequence of operations and can be managed by the building operator without calling in expensive support:

10 IF OUTSIDE TEMP < 50F THEN START CICRPMP

20 IF OUTSIDE TEMP > 52F THEN STOP CIRCPMP

Each controller supports up to 8 thermostats, either over the RS485 network or for legacy mechnaical stats, using a dry contact 24vac input. Each controller also supports up to 16 universal input sensors such as 10k thermistors, (Type 2 and 3) , dry contacts, analog signals and 4-20ma transducers.  The CM5 supports BOTH the Modbus and Bacnet protocols on BOTH the RS485 twisted pair and the Ethernet LAN port.

Typical Wiring: 

System Structure: