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9
Field Wiring
All field wiring must be in compliance with local
and national codes. Use only copper
conductors of the appropriate size.
1.
Install disconnect (not supplied by
factory).
2.
Connect 230/1/60 power to the
terminals marked “L1” and “L2” in the
junction box on the rear of the Ice
Flaker.
3.
In the junction box there are two red
wires marked “A” and “B”. Make sure
wire nut is secure.
4.
Locate and connect Photo Eye sensors
to the matching plug inside the Ice
Flaker enclosure (see p.19).
Leak Testing
After all refrigerant connections are made, the
entire system must be leak tested. Use
accepted industry leak test methods. The
system should be pressurized to no more than
45 bar (653 psig).
It is recommended that this pressure be held
for a minimum of 12 hours and then rechecked.
For a satisfactory installation, the system must
be leak tight.
Evacuation
Do not use the refrigeration compressor to
evacuate the system. Do not start the
compressor while it is in a vacuum.
A good, deep vacuum pump should be
connected to both the low and high side
evacuation valves with copper tube or high
vacuum hoses (1/4” ID minimum).
If the compressor has service valves, they
should remain closed.
A deep vacuum gauge capable of registering
pressure in microns should be attached to the
system for pressure readings.
A shut off valve between the gauge connection
and vacuum pump should be provided to allow
the system pressure to be checked after
evacuation.
Do not turn off vacuum pump when connected
to an evacuated system before closing shut off
valve.
The vacuum pump should be operated until a
pressure of 1,500 microns absolute pressure is
reached – at which time the vacuum should be
broken with the refrigerant to be used in the
system through a drier until the system
pressure rises above “0” psig.
Refrigerant used during evacuation cannot be
vented. Reclaim all used refrigerant.
Repeat this operation a second time.
Open the compressor service valves and
evacuate the entire system to 500 microns
absolute pressure. Raise the pressure to 2 psig
with the refrigerant and remove the vacuum
pump.
Summary of Contents for HoweIce Rapid Freeze 4000-RL-CO 2DX
Page 6: ...6 Engineering Guidelines Figure 1...
Page 37: ...Appendix 37 Appendix Cut View 1000 RLE...
Page 38: ...38 Appendix Cut View 2000 RLE...
Page 39: ...Appendix 39 Assembly Drawing 1000 RLE Ice Flaker CP750 Mobile Express Ice Bin...
Page 40: ...40 Appendix Assembly Drawing 2000 RLE Ice Flaker CP1500 Mobile Express Ice Bin...
Page 41: ...Appendix 41 Wiring Diagram Ice Flaker Main Control Panel...
Page 42: ...42 Appendix Wiring Diagram CO2 EEV EEPR Control Panel...
