Unit installation

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5. Route Cooling Unit water tank overflow hose to a permanent floor drain.
6. Cooling Unit with Water-Cooled Refrigeration System.
Route end of the Cooling Unit refrigeration cooling coil drain line to and connect to a permanent drain.
7. Seal area around drain and overflow hoses where they exit from the Unit using Dow Corning (RTV 731) or
equivalent.
PREPARING COOLING UNIT FOR OPERATION
1. Make sure plug in end of the Cooling Unit water tank drain hose is secure.
2. Fill water tank with clean water until water starts flowing from the water tank overflow hose. USE LOW
MINERAL CONTENT WATER WHERE A LOCAL WATER PROBLEM EXISTS.
3. Open shutoff valve in the plain water inlet supply line. Check for water leaks and repair if evident.
4. Adjust primary CO
2
regulator (see Figure 2) on CO
2
cylinder to a minimum nominal setting of 120-psi or
24-psi higher than highest setting required by the secondary CO
2
regulators. Loosen the CO
2
regulator
adjusting screw locknut. Turn the adjusting screw to the right (clockwise) until the regulator gage registers
nominal 120-psi, then tighten the adjusting screw locknut.
5. Adjust the carbonator secondary CO
2
regulator (see Figure 2) to a nominal 90-psi. Loosen the CO
2
regulator adjusting screw locknut. Turn the adjusting screw to the right (clockwise) until the regulator gage
registers nominal 90-psi, then tighten the adjusting screw lock nut. CO
2
PRESSURE TO THE
CARBONATORS MUST NOT EXCEED 120-PSIG.
OPERATION
WARNING: Disconnect electrical power to Cooling Unit and Remote Condenser Coil and
Fan Assembly to prevent personal injury before attempting any Cooling Unit or Remote
Condenser Coil and Fan Assembly internal maintenance. Only qualified personnel should
service internal components or electrical wiring.
CAUTION: To prevent Hydro-BoostR coil freeze-up during initial Cooling Unit start-up, the
following start-up procedure must be performed as follows:
1. Make sure the Hydro BoostR bypass shutoff valve inside the Cooling Unit (see Figure 2) is in the
‘‘CLOSED’’ (handle not in line with tubing) position.
2. Open shutoff valve in the city plain water source line connected to the Cooling Unit post-mix system.
3. Make sure the Cooling Unit REFRIGERATION POWER, CARBONATOR MOTOR, and CIRCULATING
MOTOR Power switches are in the ‘‘OFF’’ positions.
4. Cooling Unit with Water-Cooled Refrigeration System.
Open shutoff valve in the City water line connected to the Refrigeration Cooling Coil Assembly. Check for
water leaks and repair if evident.
5. Connect electrical power to the Cooling Unit at the disconnect switch.
6. Cooling Unit Connected to a Remote Condenser Coil and Fan Assembly.
Connect electrical power to Remote Condenser Coil and Fan Assembly at disconnect switch.