AERCO C-More Controls Manual June 2010 - Manual (Page 143)

C-More Controller for Benchmark, Innovation & KC
USER MANUAL
04/22/14 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 Page 143 of 162
OMM-0032_0E Phone: 800-526-0288 GF-112
To convert from “counts” to degrees C or degrees F
This is for reference only. The use of counts is depreciated and should not be used for new
setups.
To convert a temperature in degrees Fahrenheit (F) to counts (X), use the following formula:
X = (((F – 20) * 1000) +115)/230
To convert a temperature expressed in counts (X) to degrees Fahrenheit (F), use the following
formula:
F = (((X * 230) +500)/1000) + 20
To convert a temperature in degrees Celsius (C) to counts (X), use the following formula:
X = (((C +7) * 1000) +64)/128
To convert a temperature expressed in counts (X) to degrees Celsius (C), use the following
formula:
C = (((X * 128) +500)/1000) -7
To convert long integers (run hours and run cycles)
Run hours = 65536 * run_hours upper + run_hours lower.
Run cycles = 65536 * run_cycles upper + run_cycles lower.
BST Header Temperature Sensor and Outdoor Air Temperature Sensor
There are two header sensor and outdoor air sensor connection options available. The two
options are the “direct connect to the BST master” option and the Modbus option. If the BST
Automatic Master Failover feature is required, the Modbus sensor option is required.
Modbus Header Sensor Kit
The Modbus Outdoor air and Header temp sensor connection method is the higher cost option
and it requires more setup. This method allows for the use of the Automatic Master Failover
feature. In the event of a Master Failover the Modbus header and outdoor air temperatures are
available to the new master.