Figure 1. Overall system
ALC = Automated Logic Control system
BHWSV = Hot Water Supply Valve
BFP = Boiler Feed Pump
BFT = Boiler Feed Tank
CR = Condensate Return
CTW = City Water
ESB = Electric Steam Boiler
HWR = Hot Water Return
HWS = Hot Water Supply
IV# = Chilled Water Shut-off Valve
P# = Pressure transmitter
SS = Steam Supply
T# = Temperature transmitter
TLHX = Test Load Heat Exchanger
WS = Water Softener
Figure 2. Chiller cycle
Figure 3. Chiller schematic
ABS = Absorber
BPHX = By-pass heat exchanger
CHSV = Cooling/heating switch valve
CHWP = Chilled water pump
COND = Condenser
CT = Cooling tower
CTF = Cooling tower fan
CTWS = City water switch
CWBPV = Cooling water by-pass valve
CWDD = Cooling water drain device
CWDV = Cooling water detergent valve
CWOF = Cooling water overflow
CWP = Cooling-water pump
EVP = Evaporator
HRHX = Heat recovery heat exchanger
HTHX = High-temperature heat exchanger
HTRG = High-temperature regenerator
LTHX = Low-temperature heat exchanger
LTRG = Low-temperature regenerator
RBPV = Refrigerant by-pass solenoid valve
RP = Refrigerant pump
RPH = Refrigerant pump heater
SF = Steam filter
SP = Solution pump
ST = Steam trap
SV = Steam valve