Watts Aerco ProtoNode FPC-N34 - APPENDIX G: CONVERSION EQUATIONS FOR TEMPERATURE VARIABLES; Table G-1: Conversion Equations for Temperature Variables

ProtoNode FPC-N34 & FPC-N35 User Manual
APPENDIX G: CONVERSION EQUATIONS
OMM-0150_B • 5/20/2021 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 123 of 140
Appendix G: CONVERSION EQUATIONS FOR TEMPERATURE
VARIABLES
Table G-1: Conversion Equations for Temperature 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 G-2: Conversion Equations for Temperature 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
ABS_DEG_1
For (degF>0):






+
=
230
115(1000)(degF)
RegVar
For (degF<0):






−
=
230
115(1000)(degF)
RegVar
For (degC> 0):






−
=
128
115(1000)(degC)
RegVar
For (degC<0):






−
=
128
64(1000)(degC)
RegVar