Is there a recommended sequence of operations?
We recommend the following:
- Shut the fan down
- Close the outdoor air dampers
- Turn on the preheat coil (steam, hot water, or electric)
- Turn on chilled water circulation pump (where applicable)
- Send an alarm to Building Management System and personnel
Will we get nuisance alarms with this technology?
The system is designed so that the only time this should alarm would be if the coils have frozen or are dangerously close to freezing. This is typically far outside of the design operating conditions of the air handler.
How do I pair this with my building automation system?
There are two options for output on the control board: 1.) Normally Open 2.) Normally Closed. Depending on your building management system, one of the options will be utilized to report the alarm.
Can I retrofit Smart Coil technology?
You absolutely can make your existing Freeze Block coils “smart” by adding the smart coil system. We will ship you a new generation freeze block valve (if needed), control box, clips, and wiring for retrofitting. If you do not have a Freeze Block coil, you’ll need to purchase a Freeze Block coil along with the Smart Coil system.
Will the sensor pick up condensation when used on a chilled water coil?
No. The adapter clip is designed to shed water in a way that will only allow the sensor to know when a valve discharges.
How many sensors can be utilized with a single control box?
Up to 30 sensors
Is the control box rated for outdoor use?
Yes, the control box is a NEMA 4 enclosure and can be used outdoors.
Are the sensor cables rated for use in Air Handlers?
Yes, they are rated for AHU use under UL 2464.
How long are the sensor wires?
Each sensor lead comes with 50 feet of wire.
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