Manitowoc UG020A Technician's Handbook

Suction Pressure Low Checklist . . . . . . . . . . . . . 52
Discharge Line Temperature Analysis. . . . . . . . .53
Component Check Procedures 55
On/Off/Wash-Fill Toggle Switch . . . . . . . . . . . . . 55
Bin thermistor (T3). . . . . . . . . . . . . . . . . . . . . . . . 56
SUMP WATER THERMiSTOR (T1)& LIQUID LINE
THERMiSToR(T2). . . . . . . . . . . . . . . . . . . . . . . 58
high Pressure Cutout (HPCO) Control . . . . . . . . 65
Hot Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Recover/Evacuation/Charging. . . . . . . . . . . . . . . 71
System Contamination Cleanup . . . . . . . . . . . . . 74
Mild System Contamination Cleanup . . . . . . . . . 76
Severe System Contamination Cleanup Procedure
77
Filter-Driers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Total System Refrigeration Charge . . . . . . . . . . 80
Cycle Times/24 Hour Ice Production and
Refrigerant Pressure Charts 81
ug18A Self-Contained Air-Cooled — Standard
Cube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
ug18A Self-Contained Air-Cooled — Standard
Cube (Continued) . . . . . . . . . . . . . . . . . . . . . . . 83
ug18A Self-Contained Air-Cooled — Standard
Cube (Continued) . . . . . . . . . . . . . . . . . . . . . . . 84
UG020A
Self-Contained Air-Cooled — Standard
Cube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
UG020A
Self-Contained Air-Cooled — Standard
Cube (Continued) . . . . . . . . . . . . . . . . . . . . . . . 86
UG020A
Self-Contained Air-Cooled — Standard
Cube (Continued) . . . . . . . . . . . . . . . . . . . . . . . 87
UG030A-251 Self-Contained Air-Cooled — Stan-
dard Cube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
UG030A-251 Self-Contained Air-Cooled — Stan-
dard Cube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
UG030A-251 Self-Contained Air-Cooled — Stan-
dard Cube (Continued) . . . . . . . . . . . . . . . . . . . 90
UG030A-261 Self-Contained Air-Cooled — Stan-
dard Cube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
UG030A-261 Self-Contained Air-Cooled — Stan-
dard Cube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
UG030A-261 Self-Contained Air-Cooled — Stan-

Manitowoc UG020A Specifications

General

Brand	Manitowoc
Model	UG020A
Category	Ice Maker
Language	English