Electrical Power Requirements; 60 Hz Unit; Selecting Location - Cornelius R-404A REFRIGERANT Service Manual

3. Cleaning brush (item 3) is used to clean faceplate relief valves passages.
4. Tapered gasket, black (item 4) is used to seal connection when connecting plain water source line to Unit
water inlet line.
5. Drip tray supports (item 7 and item 8) are to be installed on front of Unit (See Figure 5) and secured with
thread cutting screws (item 6) and thread cutting screw (item 16).
6. Cup rest (item 5) is to be installed in drip tray (item 9), then drip tray is to be installed on drip tray supports.
7. Drip tray drain hose kit (item 10) is to be installed on drip tray as instructed in Instructions provided in the
Kit.
8. Wrench, rear seal housing (item 11) is used to remove the drive shaft/seal assembly from inside the freeze
cylinder.
9. Tool, drive/coupler adjustment gauge (item 12) is used for servicing the beater motor drive shaft/ seal as-
sembly (See Figure 9).
10. Leveling legs (item 13) are to be installed on bottom of the Unit.
11. Front access panel (item 15) is to be installed on front of the Unit (See Figure 5) and secured with white
spacers (item 14) and screws (item 16). Spacers are to be installed between the front panel and the unit
frame.

ELECTRICAL POWER REQUIREMENTS

IMPORTANT: Before connecting electrical power to the Unit, refer to nameplate and note if Unit is to be
operated with 50 or 60 Hz power source.

60 HZ UNIT

IMPORTANT: Power circuit voltage across L
control box, with refrigeration compressor operating, must be in range of 198-253 VAC, 60 Hz
single-phase for proper operation.
A properly grounded 198-253 VAC, 60 Hz single-phase electrical circuit connected through a 30-amp minimum-
rated disconnect switch (not provided) fused at 30-amps (slow-blow) or circuit connected through an equivalent
HACR circuit breaker must be available to be connected to the electrical box located in lower back side of the
Unit. ALL WIRING MUST CONFORM TO NATIONAL AND LOCAL CODES. MAKE SURE UNIT IS PROPERLY
GROUNDED.
50 HZ UNIT
DANGER: To avoid possible fatal electrical shock or serious injury to the Operator, it is
required that an ELCB (earth leakage circuit breaker) be installed in the electrical power
circuit for all 50-Hz Units.
IMPORTANT: Power circuit voltage across L
with refrigeration compressor operating, must be in range of 209-253 VAC, 50 Hz single-phase for
proper operation.
A properly grounded 209-253 VAC, 50 Hz single-phase electrical circuit connected through a 30-amp minimum-
rated disconnect switch (not provided) fused at 30-amps (slow-blow) must be available to be connected to the
electrical box located in the lower back side of the Unit.

SELECTING LOCATION

IMPORTANT: Unit operating ambient temperature MUST NOT EXCEED 100 F. Operating ambient in
excess of 100 F will automatically void the factory warranty and will eventually result in Unit failure.
Several means are available to achieve proper ambient temperature and air circulation around the Unit,
which are wall air intake grilles and ceiling exhaust fans, air conditioning, etc. Consult local codes.
312028000
and L terminals on contactor inside lower electrical
1 2
and L terminals on contactor inside lower control box,
1 2
8