DHWHeatRec

Name	Type	Variability	Description/Comments
mult	SI_GEZ	input time	multiplier modeled as wr_mult identical heat recovery devices
hwEndUse	choice:DHWEU	input time	end use source for this device as of 12-18, only supports C_DHWEUCH_SHOWER
type	choice:DWHRTY	input time	type: C_DWHRTYCH_ _HORIZ or _VERT: effectiveness adjusted per CASE regressions depending on flows and temps, same model for both _SETEF: wr_effRated used w/o modification (testing aid)
nFXDrain	SI_GEZ	input time	number of fixtures (of type wr_hwEndUse) draining via this [DHWHEATREC][dhwheatrec]
nFXCold	SI_GEZ	input time	number of fixtures (of type wr_hwEndUse) draining via this [DHWHEATREC][dhwheatrec] with cold source = this [DHWHEATREC][dhwheatrec] default = wr_nFXDrain if < wr_nFXDrain, remainder have cold source = mains Note: wr_feedsWH = No and wr_nFXCold=0 is illegal
feedsWH	choice:NOYES	input time	iff C_NOYESCH_YES, potable output is plumbed to water heater cold water inlet

Name	Type	Variability	Description/Comments
effRated	number	Start of hour	rated effectiveness (generally CSA rating value)

Name	Type	Variability	Description/Comments
tdInDiff	FLOAT_GEZ	Start of hour	drain-side inlet water temp drop from fixture mixed temp, F tdIn = tFxMix - tdInDiff; default = 4.6 F

Name	Type	Variability	Description/Comments
tdInWarmup	FLOAT_GEZ	Start of hour	drain-side inlet temp during warmup portion of draw default = 65.

Name	Type	Variability	Description/Comments
eff	number	End of subhour	effectiveness under current conditions
tpO	number	End of subhour	most recent potable-side output temp, F
vp	number	End of subhour	most recent potable-side flow, gpm