Installation Instructions - Cornelius SERIES 750 (R404a Service Manual

You will get better service from the ice machine, longer life and greater convenience if you choose its location
with care.
Here are a few points to consider:
1. Select a location as close as possible to where you are going to use the ice.
2. Allow a minimum of 6" space at sides and rear of machine for ventilation.
3. A kitchen installation is not desirable as a rule. If a kitchen installation is necessary, locate the machine as
far away from the cooking area as possible. Grease laden air will form a greasy deposit on the condenser.
This reduces the ice making efficiency and necessitates thorough cleaning quite often.
4. If you install the unit in a storeroom, be sure the room is well ventilated.
NOTE: Do not install where the ambient and incoming water temperature will drop below 50° F rise to
over 100° F.
WARNING: If water pressure exceeds 50 pounds, a water pressure regulator should be
installed in water inlet line between water shut–off valve and strainer. Minimum incoming
water pressure required is 22 pounds.
5. Uncrate the unit by removing the staples or nails from the bottom of the carton and lift off.
6. Remove the bolts holding the skid to the machine.
7. For units supplied with a bin sealing gasket, cement the gasket to the bottom outside edge of the machine
before it is set on the bin. NOTE: This is an N.S.F. requirement and must be done by the installer.
8. Make sure the correct bin adapter has been supplied when used. Then mount the unit on the bin and level
both properly.
9. For units not supplied with bin sealing gasket, seal the machine to bin with an N.S.F. approved sealant
such as Dow R.T.V. #732, 734, or G.E. #102, 108. This is an N.S.F. requirement and is the responsibility
of the installer.
10. The incoming water for the ice making section requires a 3/8" copper line. Connect this water line to the
3/8" male flare fitting on the back of the unit.
NOTE: For water cooled units, a separate 3/8" copper water line is required to be connected to the flare
fitting on the back of the unit marked condenser water in. A 3/8" flare connected line will have
to be provided from the fitting marked condenser water out to the drain.
A water regulating valve installed at the factory was set to maintain 270 to 310 PSI head pressure for R–404a
units and 210 to 225 PSI for R–22 units (Approx. 105_ to 110_F). Check temperatures at condenser outlet and
adjust if necessary.
11. Connect a drain hose to the condensate drain stub tube.
NOTE: All plumbing must be done in accordance with national and local codes.
12. Bring the electrical supply into the unit through a handy box located on the back of unit and make
connections.
NOTE: NOTE: Make sure the proper voltage and number of wires are provided. See serial plate and
make connections.
NOTE: All wiring must conform to national and local codes.
13. Turn on water supply and observe water level in evaporator sections. Water level is to be maintained at
the top of the evaporator. (See adjustment procedure)

INSTALLATION INSTRUCTIONS

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