AERCO Control System (ACS) - Manual (Page 96)

MC2: 04/23/13 Page 96 of 144
GF-131
AERCO Control System (ACS)
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288
Installation, Operation, and Maintenance Manual
OMM-0081_0D
B.2 CONVERSION EQUATIONS FOR TEMPERATURE VARIABLES
Table B-3: Conversion Equations for Temp. Variables – Variable Counts to Temp
REGISTER
VARIABLE
TYPE
DEGREES FAHRENHEIT (°F) DEGREES CELSIUS (°C)
DEGREES_1 20
1000
500 (230) (RegVar)
Temp(F) +



 + ∗
= 7
1000
500 (128) (RegVar)
Temp(C) −



 + ∗
=
DEGREES_2 80
1000
500 (220) (RegVar)
Temp(F) −



 + ∗
= 62
1000
500 (183) (RegVar)
Temp(C) −



 + ∗
=
DEGREES_3 40
1000
500 (520) (RegVar)
Temp(F) +



 + ∗
= 4
1000
500 (289) (RegVar)
Temp(C) −



 + ∗
=
ABS_DEG_1
For (RegVar>0):



 + ∗
=
1000
500 (230) (RegVar)
Temp(F)
For (RegVar<0):



 − ∗
=
1000
500 (230) (RegVar)
Temp(F)
For (RegVar> 0):



 + ∗
=
1000
500 (128) (RegVar)
Temp(C)
For (RegVar< 0):



 − ∗
=
1000
500 (128) (RegVar)
Temp(C)
Table B-4: Conversion Equations for Temp. Variables – Temp to Variable Counts
REGISTER
VARIABLE
TYPE
DEGREES FAHRENHEIT (°F) DEGREES CELSIUS (°C)
DEGREES_1



 + ∗ −
=
230
115 (1000) 20) (degF
RegVar



 + ∗ +
=
128
64 (1000) 7) (degC
RegVar
DEGREES_2



 + ∗ −
=
220
110 (1000) 80) (degF
RegVar



 + ∗ +
=
183
91.5 (1000) 62) (degC
RegVar
DEGREES_3



 + ∗ +
=
600
300 (1000) 40) (degF
RegVar



 + ∗ −
=
289
144.5 (1000) 4) (degC
RegVar