ICE Series
Refrigeration System
Page E1
Refrigerant Cycle and
Components
Before diagnosing the refrigeration
system, it is very important that the
refrigerant charge be correct.
Whenever the refrigeration system
has been opened, the filter-drier
must be replaced and the proper
refrigerant charge must be weighed
in. See refrigerant charge data on
page
A5–A8
.
Refrigerant Pressures
The suction pressure at the
beginning of the freeze cycle can vary +/- 10 psi
(.7 bar) depending on operating conditions. Reference Chart on
page E10-E13
. Pressures less
than this may indicate an undercharge. The discharge pressure on water-cooled units should be
250 psi (17.01 bar) for R404a units and 150 psi (10.21 bar) for R134a units. The discharge
pressure on air cooled units will vary with ambient conditions but will typically run higher than water
cooled units. Remote condensers located in ambient temperatures below 70°F (21°C) will typically
run a lower discharge pressure. See
Mixing Valve
later in this section.
Refrigerant in a gas state is pumped throughout the refrigeration system by a hermetic
compressor
to the
condenser
. Heat is removed from the refrigerant either by forced air
movement through an air-cooled condenser or transferring heat from the refrigerant to water
through a water-cooled condenser. The refrigerant changes to a liquid when cooled.
The refrigerant in a liquid state passes through a
filter drier
. The filter drier traps
small amounts of moisture and foreign particles from the system. The filter drier
must
be
replaced whenever the refrigeration system is opened or if the refrigerant charge
has been completely lost.
Compressor
The compressor runs during the entire cycle. If the valves in the
compressor are damaged, the compressor will be unable to pump
refrigerant efficiently. Damaged valves are usually the result of another
problem in the refrigeration system such as liquid refrigerant returning to
the compressor, oil slugging or high head pressure. When a compressor
is replaced it is important that the refrigerant charge be weighed in and
the system checked for proper operation to prevent a repeat failure.
An inefficient compressor will usually have a higher than normal suction
pressure at the end of the cycle. The freeze cycle will be longer than normal and/or the harvest
cycle may be excessively long. Check the compressor amperage draw 5 minutes into the freeze
cycle. If the compressor amp draw (Reference data plate on ice machine back panel) is less than
70% of rated full load amps, the compressor may be inefficient. These symptoms may also be
caused by other problems, therefore it is important to use the troubleshooting trees when
diagnosing a problem. See Electrical System for more information on the compressor and
compressor start components.
Summary of Contents for 16
Page 19: ...ICE Series General Information Page A17 Electrical and Plumbing Requirements ICE1506 Remote ...
Page 86: ...ICE Series Wiring Diagram Page G1 ICEU150 200 205 206 Air and Water Wiring Diagram ...
Page 87: ...ICE Series Wiring Diagram Page G2 ICEU150 200 205 206 Air and Water Wiring Schematic ...
Page 88: ...ICE Series Wiring Diagram Page G3 ICEU150 220 225 226 Air and Water Wiring Diagram ...
Page 89: ...ICE Series Wiring Diagram Page G4 ICEU150 220 225 226 Air and Water Wiring Schematic ...
Page 90: ...ICE Series Wiring Diagram Page G5 ICE0250 Air and Water Wiring Diagram ...
Page 91: ...ICE Series Wiring Diagram Page G6 ICE0250 Air and Water Wiring Schematic ...
Page 92: ...ICE Series Wiring Diagram Page G7 ICE0400 Air and Water Wiring Diagram ...
Page 93: ...ICE Series Wiring Diagram Page G8 ICE0400 Air and Water Wiring Schematic ...
Page 94: ...ICE Series Wiring Diagram Page G9 ICE0405 0406 Air and Water Wiring Diagram ...
Page 95: ...ICE Series Wiring Diagram Page G10 ICE0405 0406 Air and Water Wiring Schematic ...
Page 96: ...ICE Series Wiring Diagram Page G11 ICE0500 Air and Water Wiring Diagram ...
Page 97: ...ICE Series Wiring Diagram Page G12 ICE0500 Air and Water Wiring Schematic ...
Page 98: ...ICE Series Wiring Diagram Page G13 ICE0500 Remote Wiring Diagram ...
Page 99: ...ICE Series Wiring Diagram Page G14 ICE0500 Remote Wiring Schematic ...
Page 102: ...ICE Series Wiring Diagram Page G17 ICE0605 0606 0805 0806 1005 1006 Remote Wiring Diagram ...
Page 103: ...ICE Series Wiring Diagram Page G18 ICE0605 0606 0805 0806 1005 1006 Remote Wiring Schematic ...
Page 104: ...ICE Series Wiring Diagram Page G19 ICE1007 Air and Water Wiring Diagram ...
Page 105: ...ICE Series Wiring Diagram Page G20 ICE1007 Air and Water Wiring Schematic ...
Page 106: ...ICE Series Wiring Diagram Page G21 ICE1007 Remote Wiring Diagram ...
Page 107: ...ICE Series Wiring Diagram Page G22 ICE1007 Remote Wiring Schematic ...
Page 108: ...ICE Series Wiring Diagram Page G23 ICE1405 1406 1806 2005 2106 Air and Water Wiring Diagram ...
Page 109: ...ICE Series Wiring Diagram Page G24 ICE1405 1406 1806 2005 2106 Air and Water Wiring Schematic ...
Page 110: ...ICE Series Wiring Diagram Page G25 ICE1405 1406 1806 2005 2106 Remote Wiring Diagram ...
Page 111: ...ICE Series Wiring Diagram Page G26 ICE1405 1406 1806 2005 2106 Remote Wiring Schematic ...
Page 112: ...ICE Series Wiring Diagram Page G27 ICE1407 1807 2107 Air and Water Wiring Diagram ...
Page 113: ...ICE Series Wiring Diagram Page G28 ICE1407 1807 2107 Air and Water Wiring Schematic ...
Page 114: ...ICE Series Wiring Diagram Page G29 ICE1407 1807 2107 Remote Wiring Diagram ...
Page 115: ...ICE Series Wiring Diagram Page G30 ICE1407 1807 2107 Remote Wiring Schematic ...
Page 116: ...ICE Series Wiring Diagram Page G31 ICE1606 Remote Wiring Diagram ...
Page 117: ...ICE Series Wiring Diagram Page G32 ICE1606 Remote Wiring Schematic ...
Page 118: ...ICE Series Wiring Diagram Page G33 ICE0320 Air and Water Wiring Diagram ...
Page 119: ...ICE Series Wiring Diagram Page G34 ICE0320 Air and Water Wiring Schematic ...
Page 120: ...ICE Series Wiring Diagram Page G35 ICE0520 Air and Water Wiring Diagram ...
Page 121: ...ICE Series Wiring Diagram Page G36 ICE0520 Air and Water Wiring Schematic ...
Page 122: ...ICE Series Wiring Diagram Page G37 ICE0325 0525 Air and Water Wiring Diagram ...
Page 123: ...ICE Series Wiring Diagram Page G38 ICE0325 0525 Air and Water Wiring Schematic ...
Page 124: ...ICE Series Wiring Diagram Page G39 ICE0305 Air and Water Wiring Diagram ...
Page 125: ...ICE Series Wiring Diagram Page G40 ICE0305 Air and Water Wiring Schematic ...
Page 126: ...ICE Series Wiring Diagram Page G41 ICE1506 Remote ...
Page 127: ...ICE Series Wiring Diagram Page G42 ICE1506 Remote ...
Page 128: ...ICE Series Wiring Diagram Page G43 ICEU300 Air and Water ...
Page 129: ...ICE Series Wiring Diagram ICEU300 Air and Water Page G44 ...
Page 130: ...ICE Series Wiring Diagram Page G45 ICEU305 Air and Water ...
Page 131: ...ICE Series Wiring Diagram Page G46 ICEU305 Air and Water ...
Page 132: ...ICE Series Wiring Diagram Page G47 ICE0500 Remote Wiring Diagram R3 ...
Page 133: ...ICE Series Wiring Diagram Page G48 ICE0500 Remote Wiring Schematic R3 ...
Page 134: ...ICE Series Wiring Diagram ICE0605 0606 0806 1006 Remote Wiring Diagram R3 Page G49 ...
Page 135: ...ICE Series Wiring Diagram Page G50 ICE0605 0606 0806 1006 Remote Wiring Schematic R3 ...
Page 136: ...ICE Series Wiring Diagram Page G51 ICE1007 Remote Wiring Diagram R3 ...
Page 137: ...ICE Series Wiring Diagram Page G52 ICE1007 Remote Wiring Schematic R3 ...
Page 146: ...ICE Series Wiring Diagram ICE0500 Air3 and Water3 Wiring Diagram Page G61 ...
Page 147: ...ICE Series Wiring Diagram Page G62 ICE0500 Air3 and Water3 Wiring Schematic ...
Page 148: ...ICE Series Wiring Diagram Page G63 ICE0500 Remote4 Wiring Diagram ...
Page 149: ...ICE Series Wiring Diagram Page G64 ICE0500 Remote4 Wiring Schematic ...
Page 151: ...ICE Series Wiring Diagram Page G66 ICE0606 Air3 and Water3 ICE0605 Air3 and Water3 ...
Page 152: ...ICE Series Wiring Diagram ICE0606 Remote4 and ICE0605 Remote4 Wiring Diagram Page G67 ...
Page 153: ...ICE Series Wiring Diagram Page G68 ICE0606 Remote4 and ICE0605 Remote4 Wiring Schematic ...
Page 154: ...ICE Series Wiring Diagram Page G68 ICE0606 Remote4 and ICE0605 Remote4 Wiring Schematic ...
Page 155: ...ICE Series Wiring Diagram ICE1405 6A3 W3 ICE1806W3 and ICE2106W3 Wiring Diagram Page G69 ...
Page 156: ...ICE Series Wiring Diagram Page G70 ICE1405 6A3 W3 ICE1806W3 and ICE2106W3 Wiring Schematic ...
Page 157: ...ICE Series Wiring Diagram ICE1407A3 W3 ICE1807W3 and ICE2107W3 Wiring Diagram Page G71 ...
Page 158: ...ICE Series Wiring Diagram Page G72 ICE1407A3 W3 ICE1807W3 and ICE2107W3 Wiring Schematic ...
Page 159: ...ICE Series Wiring Diagram Page G73 ICE1405 6R3 ICE1806R3 and ICE2106R3 Wiring Diagram ...
Page 160: ...ICE Series Wiring Diagram Page G74 ICE1405 6R3 ICE1806R3 and ICE2106R3 Wiring Schematic ...
Page 161: ...ICE Series Wiring Diagram Page G75 ICE1407R3 ICE1807R3 and ICE2107R3 Wiring Diagram ...
Page 162: ...ICE Series Wiring Diagram Page G76 ICE1407R3 ICE1807R3 and ICE2107R3 Wiring Schematic ...
Page 163: ...ICE Series Wiring Diagram Page G77 ICE1506R3 Wiring Diagram ...
Page 164: ...ICE Series Wiring Diagram Page G78 ICE1506R3 Wiring Schematic ...