update doc: HP total heating rate = sum coil heating rate

previously it says HP total heating rate is the sum of air terminal heating
rate (which includes supplemental heating coil heating rate). This is wrong for
both the curve-based model and FluidTCtrl model. FluidTCtrl model doesn't have
an entry to this output field, so one is added.

doc/input-output-reference/src/overview/group-variable-refrigerant-flow-equipment.tex

@@ -619,7 +619,7 @@ \subsubsection{Outputs}\label{outputs-039}
 
 \paragraph{VRF Heat Pump Total Heating Rate {[}W{]}}\label{vrf-heat-pump-total-heating-rate-w}
 
-This output field is the operating total heating capacity of the variable refrigerant flow heat pump in Watts. The capacity includes any degradation due to defrost mode. This value is calculated for each HVAC system time step being simulated, and the results are averaged for the time step being reported. This value should match the sum of the individual zone terminal unit output variables for Zone VRF Air Terminal Total Heating Rate.
+This output field is the operating total heating capacity of the variable refrigerant flow heat pump in Watts. The capacity includes any degradation due to defrost mode. This value is calculated for each HVAC system time step being simulated, and the results are averaged for the time step being reported. This value should match the sum of the individual zone terminal unit heating coil output variables for Heating Coil Heating Rate.
 
 \paragraph{VRF Heat Pump Cooling Electricity Rate {[}W{]}}\label{vrf-heat-pump-cooling-electric-power-w}
 
@@ -1153,6 +1153,10 @@ \subsubsection{Outputs}
 
 Note: refer to the rdd file after a simulation for exact output variable names
 
+\paragraph{VRF Heat Pump Total Heating Rate {[}W{]}}\label{vrf-heat-pump-total-heating-rate-w}
+
+This output field is the operating total heating capacity of the variable refrigerant flow heat pump in Watts. The capacity includes any degradation due to defrost mode. This value is calculated for each HVAC system time step being simulated, and the results are averaged for the time step being reported. This value should match the sum of the individual zone terminal unit heating coil output variables for Heating Coil Heating Rate.
+
 \paragraph{VRF Heat Pump Compressor Rotating Speed {[}rev/min{]}}\label{vrf-heat-pump-compressor-rotating-speed-revmin}
 
 This output only applies for the VRF-FluidTCtrl model. This is the rotating speed of the compressor, which indicates the loading index.