Troubleshooting Compressor; Electrical Checkout - Cornelius IMD GLACIER 500-30 Installation Manual

Countertop Icemaker IMD Glacier Series Installation Manual
T
ROUBLESHOOTING
Basically the compressor problems can be narrowed down to three areas of checkout.
1. THE COMPRESSOR WILL NOT RUN
• No voltage to the compressor terminals - check circuit.
• Low voltage - below 90% of nameplate rated voltage.
• Problems in the compressor electrical circuit. See Electrical Checkout Instructions.
2. THE COMPRESSOR STARTS BUT TRIPS REPEATEDLY ON THE OVERLOAD PROTECTOR
• Check for proper fan operation and clean condenser.
• Check the compressor suction and discharge pressures.
• Voltage - The voltage should be within 10% of the rated nameplate voltage.
• High compressor amperage draw, it should never exceed 120% of the rated nameplate amperage. See
Electrical Checkout Instructions.
3. THE COMPRESSOR RUNS BUT WILL NOT REFRIGERATE
• Check the compressor suction and discharge pressures.
Discharge Temperature
(°F (°C))
Suction Temperature (°F (°C))
Discharge Pressure
(psig (Mpa))
Suction Pressure (psig (Mpa))
Current (Amps)
E C
LECTRICAL HECKOUT
1. Be sure the unit is disconnected from the power source. Remove the compressor electrical box cover. Check
for obvious damage and loose wires.
2. Disconnect the fan motor leads. Since capacitors store energy, short the capacitor with a screwdriver. This will
prevent shocks.
3. Disconnect the compressor terminal wires.
Figure 19. Overload Check
Publication Number: 620068501INS
C
OMPRESSOR
Table 1. Pressure temperature chart
IMD GLACIER 500-30,230V/50Hz, (R290)
75°F 45% RH 90°F 65% RH 105°F 75% RH 70°F 50% RH 90°F 65% RH 104°F 75% RH
205 (96) 220 (104)
50 (10) 56 (13)
196(1.351) 237(1.634)
21(.144) 22(.151)
3.7 3.9
- 24 -
IMD GLACIER 600-30, 115V/60Hz, (R404a)
240 (116) 195 (91)
64 (18) 29 (-2)
275(1.896) 236 (1.627)
23(.158) 25 (.172)
4.1 11
Figure 20. Compressor Check
213 (101) 232 (111)
38 (3) 45 (7)
306 (2.109) 365 (2.516)
28 (.193) 33 (.227)
12 13
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