Manitowoc Ice QF0800 Section, Installation Instructions, Potable Water Supply, Drain Connections

Section 2 Installation Instructions

Ice Machine Head Section Water Supply and Drains

POTABLE WATER SUPPLY

Local water conditions may require treatment of the water to inhibit scale formation, filter sediment, and remove chlorine odor and taste.

Important

If you are installing a Manitowoc water filter system, refer to the Installation Instructions supplied with the filter system for ice making water inlet connections.

POTABLE WATER INLET LINES

Follow these guidelines to install water inlet lines:

•Do not connect the ice machine to a hot water supply. Be sure all hot water restrictors installed for other equipment are working. (Check valves on sink faucets, dishwashers, etc.)

•If water pressure exceeds the maximum (80 psig 551.5 kPA) recommended pressure, obtain a water pressure regulator from your Manitowoc distributor.

•Install a water shut-off valve and union for both the ice making and condenser water lines.

DRAIN CONNECTIONS

Follow these guidelines when installing drain lines to prevent drain water from flowing back into the ice machine and storage bin:

•Drain lines must have a 1.5 inch drop per 5 feet of run (2.5 cm per meter), and must not create traps.

•The floor drain must be large enough to accommodate drainage from all drains.

•Run separate bin and water-cooled condenser drain lines. Insulate them to prevent condensation.

•Vent the bin and ice machine drain to the atmosphere. The ice machine drain requires an 18” vent. Do not vent the condenser drain on water- cooled models.

•Drains must have a union or other suitable means to allow in place disconnection from the ice machine when servicing is required.

•Insulate water inlet lines and drain lines to prevent condensation.

Cooling Tower Applications

(Water-Cooled Models)

A water cooling tower installation does not require modification of the ice machine. The water regulator valve for the condenser continues to control the refrigeration discharge pressure.

It is necessary to know the amount of heat rejection, and the pressure drop through the condenser and water valves (inlet and outlet) when using a cooling tower on an ice machine.

•Water entering the condenser must not exceed 90°F (32.2°C).

•Water flow through the condenser must not exceed 5 gallons (19 liters) per minute.

•Allow for a pressure drop of 7 psi (48 kPA) between the condenser water inlet and the outlet of the ice machine.

•Water exiting the condenser must not exceed 110°F (43.3°C).

Part No. 80-1214-3 Revised 8/2003 2-9