Zanotti Zero Series Installation Manual page 5

Refrigeration unit
Series Zero Direct-Drive
Z200 | Z250 | Z350 | Z380
Z380 Multi
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
3.17 Expansion valve .............................................................................................. 65
3.17.1
3.18 Liquid injection valve kit (optional) ................................................................... 67
3.18.1
3.18.2
3.18.3
3.18.4
3.18.5
3.18.6
3.19 Single temperature heating kit (optional) ......................................................... 71
3.19.1
3.19.2
3.19.3
3.19.4
3.19.5
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
rev.01
INSTALLATION MANUAL
Adjusting the CPR valve ....................................................................... 64
Expansion valve adjustment. ................................................................ 65
Operating logic ..................................................................................... 67
Components ......................................................................................... 67
Installation ............................................................................................ 67
Injection thermostat .............................................................................. 68
Cooling diagram with liquid injection valve kit installed ........................ 69
Wiring diagram with liquid injection valve kit installed .......................... 70
Operating logic ..................................................................................... 71
Components ......................................................................................... 71
Installation ............................................................................................ 71
Wiring diagram with the heating kit installed ........................................ 72
Cooling diagram with installed heating kit ............................................ 73
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