Add HPWHSim Colmax CxA-20

Author: chipbarnaby

src/CNDTYPES.DEF

@@ -405,6 +405,7 @@ PIPESEGP -- "class PIPESEG*"	 4	    none
 			AOSMITHSHPT50 "AOSmithSHPT50"		// AOSmith add'l models (added 3-24-2017)
 			AOSMITHSHPT66 "AOSmithSHPT66"
 			AOSMITHSHPT80 "AOSmithSHPT80"
+			COLMACCXA20 "ColmacCxA20"			// Colmac CxA-20 modular HPWH
 		}
 
 *choicb DHWEUCH {			// hot end uses

src/DHWCalc.cpp

@@ -2159,6 +2159,7 @@ RC HPWHLINK::hw_InitPreset(		// set up HPWH from model type choice
 			: ashpTy == C_WHASHPTYCH_AOSMITHHPTU80DR ? HPWH::MODELS_AOSmithHPTU80_DR
 			: ashpTy == C_WHASHPTYCH_SANDEN40 ? HPWH::MODELS_Sanden40
 			: ashpTy == C_WHASHPTYCH_SANDEN80 ? HPWH::MODELS_Sanden80
+			: ashpTy == C_WHASHPTYCH_COLMACCXA20 ? HPWH::MODELS_CxA_20
 			: ashpTy == C_WHASHPTYCH_GE2012 ? HPWH::MODELS_GE2012
 			: ashpTy == C_WHASHPTYCH_GE2014 ? HPWH::MODELS_GE2014
 			: ashpTy == C_WHASHPTYCH_GE2014_80 ? HPWH::MODELS_GE2014_80

src/WFPAK.CPP

@@ -1887,7 +1887,7 @@ RC WFILE::wf_CSWRead(	// read and unpack data from CSW
 	return rc;
 }			// WFILE::wf_CSWRead
 //------------------------------------------------------------------------------
-RC WFILE::wf_TDVOpen(	// open California CSW weather file
+RC WFILE::wf_TDVOpen(	// open California Time of Day Valuation (TDV) file
 	const char* TDVfName,	// pathName of file to open
 	int erOp)
 
@@ -1918,7 +1918,7 @@ RC WFILE::wf_TDVOpen(	// open California CSW weather file
 //----------------------------------------------------------------------------
 void WFILE::wf_TDVInitHdrInfo()
 {	memset(  wf_TDVFileTimeStamp, 0, sizeof( wf_TDVFileTimeStamp));
-	memset(  wf_TDVFileTitle, 0, sizeof( wf_TDVFileTimeStamp));
+	memset(  wf_TDVFileTitle, 0, sizeof( wf_TDVFileTitle));
 }	// WFILE::wf_TDVInitHdrInfo
 //----------------------------------------------------------------------------
 RC WFILE::wf_TDVReadHdr( int erOp)		// read / decode TDV file header