Stulz Explorer WPA - 4.4 Piping diagrams; 4.4.1 Legend

24 EN/06.2016/i01 © STULZ S.p.A. – all rights reserved
WPA EXPLORER ORIGINAL INSTRUCTIONS
4.4 Piping diagrams
4.4.1 Legend
Nomenc. Symbol Meaning Nomenc. Symbol Meaning
Refrigerant line LP
DP
LP
HP
PV
PD
Low pressure switch
Actuating line PV
DP
LP
HP
PV
PD
Control of fan speed
Flow direction RG
DP
LP
HP
PV PD
Shut-off valve
DP
LP
HP
PV
PD
Needle valve RL
DP
LP
HP
PV
PD
Liquid receiver
BC
DP
LP
HP
PV PD
Condenser S
DP
LP
HP
PV
PD
Temperature transmitter
CO
DP
LP
HP
PV
PD
Compressor SG
DP
LP
HP
PV
PD
Solenoid Valve
DP
DP
LP
HP
PV
PD
Pressure transducer SL
DP
LP
HP
PV
PD
Sight glass
EV
DP
LP
HP
PV
PD
Evaporator VC
DP
LP
HP
PV
PD
Condenser fan
FG
DP
LP
HP
PV
PD
Refrigerant filter VSC
DP
LP
HP
PV
PD
Safety valve with spring
loading
HP
DP
LP
HP
PV
PD
High pressure switch VT
DP
LP
HP
PV
PD
Electronic expansion valve