Install dry contact relays and wiring to engage the AN unit ON/OFF 1A switch. Set the microchiller 2 parameters to switch from standalone to BMS operation. The closed 1A On / Off switch starts the AN circulating pump and the pump LED indicator. The flow switch closes. The microchiller 2 checks the safety controls. Compressor delay timer engages and starts countdown. The # 1 LED will start to flash indicating the compressor is going to start. If all the safeties are closed the compressor will start within 5 minutes. The compressor and associated LED indicator lights up. When the inlet water temperature reaches it set point the microchiller 2 will shut off the compressor. If the BMS is satisfied with the building conditions the microchiller control will shut down the compressor and the circulating pump.
