The control unit also controls a flow rate of {HEAD ~ the second fluid}, such that {TAIL ~ the flow rate} is higher in the cooling mode than in the heating mode 
The control unit also controls a flow rate of { HEAD ~ the second fluid } , such that { TAIL ~ the flow rate } is higher in the cooling mode than in the heating mode
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH