1. Make line set run from the condenser unit to the evaporator unit in accordance with all specifications
found in the Installation specifications section.
2. Braze all connections. Do not overheat shut off valves on condenser unit or evaporator unit.
3. Pressurize line sets and check for leaks.
4. Bleed off line set.
5. Open the liquid line valve and suction line valves on evaporator unit.
6. Energize liquid line solenoid valve. Valve can be energized by supplying electrical power to evaporator
unit and filling float reservoir and evaporators with water. Do
NOT
connect power to condensing unit until
evacuation is complete and vacuum has been broken with R404A refrigerant.
7. Open the liquid line valve, then the suction line valve on the condenser unit.
8. Evacuate refrigeration system to 500 microns or less. Verify system holds vacuum for 30 minutes
with the pump off and the system isolated.
9. Add 8 lbs R404A to refrigeration system for up to 50 ft (15.2m) line length. See chart below for line length
longer than 50 ft (15.2m)
10. Insulate entire suction line including shut off valves to prevent condensation.
11. Adjust the condenser unit low pressure control set points to a cut-in of 30psi and a cut-out of 10psi.
Pressure adjustment
1. Turn cut-in adjusting screw (Fig. 7.1)
clockwise until indicator points to 30psig on
cut-in scale. Cut-in
MUST
be adjusted first.
2. Turn cut-out adjusting screw (Fig. 7.2)
counter clockwise until indicator points to
10psig on cut-out scale.
3.
Do
NOT
adjust high pressure cut-out
adjusting screw (Fig. 7.3). Control is preset
to cut-out at 450psig.
Startup and test
1. Plug evaporator unit in.
2. Turn dispenser power ON if applicable.
3. Turn condenser unit power ON.
4. Check to make sure unit makes ice.
5. Put a piece of ice on bin thermostat and verify that the evaporator unit shuts OFF.
6.
Restart
icemaker.
2
1
3
cut out
scale
cut in
scale
R404A icemaker charge specifications
Model Line
Run
Charge
825
0 – 50 ft (0 – 15.2m)
8 lbs (3.6kg)
50 – 75 ft (15.2 – 22.9m)
9 lbs (4.1kg)
75 – 100 ft (22.9 – 30.5m)
10 lbs (4.5kg)
100 ft+ (30.5m+)
Consult factory
9
Fig. 7