Maintenance and Repair of City-Owned Ice Machines 2

Scope of Work: Awarded bidder is to conduct quarterly maintenance of all City-owned ice machines using the following methodology: Inspections: Check the pressure in the water system. Check the temperature inside the unit. Check the condition and operation of controls and wiring. Check fasteners and look for corrosion. Check water sensors, thermistors, water distributor parts, water hoses and water sump or reservoir, bearings, water valve and screen. Awarded bidder should provide all inspection information to Facility Zone Manager FZM along with invoicing. Cleaning and Service: Turn off the machine and disconnect both the water supply and power connection. Discard any ice, drain the water, and disassemble the unit. Contractor to confirm that fresh ice is being produced before leaving the premises. Inspect all components that come into contact with water or ice for mold, slime, and scale. Clean the evaporator plates to remove calcium, lime, and iron buildup, which can hinder heat transfer and cause freeze-ups. Awarded bidder must use the appropriate cleaning solution based on the machine type. Cube ice machines with nickel-plated evaporators require nickel-safe cleaners to prevent damage, while other types may need a mild phosphoric acid solution. Flush the water system and circulate the cleaning solution through it to eliminate contaminants. Remove and clean all detachable parts using an appropriate solution and a brush to eliminate mold and scale. Rubber components, such as gaskets and O-rings, should be wiped down with a soft cloth. Pressure clean the storage bin drain. Remove grease and debris from the condenser coil using a non-corrosive cleaner and brush. After cleaning, sanitize all water- or ice-contact surfaces with a commercial sanitizer or diluted bleach solution. Rinse thoroughly and allow to air dry completely. Inspect and replace air and water filters if necessary. Wipe down the exterior surfaces. Inspect and replace the bin seal if needed to prevent dust and water intrusion between the ice machine and collection bin. Repairs: Any repair that needs to be performed is to be communicated to the Facility Zone Manager for approval prior to commencement. Any materials that are used for repairs must be accompanied by proof of cost.