Zanotti Zero Series - Page 5

Refrigeration unit
Series Zero Direct-Drive
Z200 | Z250 | Z350 | Z380
Z380 Multi
INSTALLATION MANUAL
rev.01
5
3.13 External power supply mode connection socket installation ............................ 60
3.14 Loading oil for putting the refrigerator circuit into service ................................ 61
3.15 Loading the system ......................................................................................... 62
3.16 Suction pressure regulator valve (CPR) .......................................................... 63
3.16.1 Adjusting the CPR valve ....................................................................... 64
3.17 Expansion valve .............................................................................................. 65
3.17.1 Expansion valve adjustment. ................................................................ 65
3.18 Liquid injection valve kit (optional) ................................................................... 67
3.18.1 Operating logic ..................................................................................... 67
3.18.2 Components ......................................................................................... 67
3.18.3 Installation ............................................................................................ 67
3.18.4 Injection thermostat .............................................................................. 68
3.18.5 Cooling diagram with liquid injection valve kit installed ........................ 69
3.18.6 Wiring diagram with liquid injection valve kit installed .......................... 70
3.19 Single temperature heating kit (optional) ......................................................... 71
3.19.1 Operating logic ..................................................................................... 71
3.19.2 Components ......................................................................................... 71
3.19.3 Installation ............................................................................................ 71
3.19.4 Wiring diagram with the heating kit installed ........................................ 72
3.19.5 Cooling diagram with installed heating kit ............................................ 73
3.20 Silencer kit (optional) ....................................................................................... 74
3.21 Final checks .................................................................................................... 75
4 Appendix ................................................................................................ 76
4.1 Cooling diagram - single temperature version ................................................. 76
4.2 Cooling diagram - multi temperature version ................................................... 77