Summary
By Commercial Dish Machine Type
Rule: If any ❌ item is not verified before delivery, the installation is considered high risk for failure, rework, inspection delays, or warranty denial.
UNDERCOUNTER DISHWASHERS
Cafés, coffee shops, bars, break rooms
Electrical
☐ Dedicated circuit installed
☐ Voltage matches manufacturer spec
☐ GFCI protection verified where required
☐ Disconnect accessible
Plumbing
☐ Hot water supply available (110°F+ minimum)
☐ Water pressure within manufacturer range
☐ Indirect drain with floor sink and air gap installed
☐ Backflow prevention installed
☐ No direct sewer connection
Water Quality
☐ Water hardness tested
☐ Softener installed if hardness exceeds limits
☐ Sediment filter installed
Physical Space
☐ Service clearance maintained per manufacturer
☐ Door swing unobstructed
☐ Machine not under plumbing
☐ Floor sloped to drain
Code & Inspection
☐ Separate hand sink in dishroom
☐ Three-comp sink present or jurisdiction exception documented
☐ Test strips on site
☐ Chemical or temperature log posted
DOOR-TYPE (HOOD) DISHWASHERS
Restaurants, churches, schools
Electrical
☐ Dedicated circuit sized to total amp load
☐ Booster heater electrical coordinated
☐ Emergency disconnect installed
Plumbing
☐ Hot water supply meets GPM requirement at peak
☐ Incoming water temperature verified
☐ Floor sink sized for discharge volume
☐ Drain lines sloped correctly
☐ Backflow device installed at pre-rinse
Booster Heater
☐ Correct BTU or kW size based on rack rate
☐ Mounted with service clearance
☐ Temperature rise verified
☐ Remote or integral type confirmed
Water Treatment
☐ Softener installed
☐ Carbon filter installed if required
☐ Delime plan posted
Ventilation
☐ Type II condensation hood installed if required
☐ Make-up air balanced
☐ No steam trapping above machine
Layout & Workflow
☐ Dirty infeed table installed
☐ Pre-rinse station installed
☐ Clean outfeed table installed
☐ Dedicated air-dry zone
CONVEYOR DISHWASHERS
Hospitals, universities, large cafeterias
Electrical
☐ Dedicated high-load circuit installed
☐ Chemical pump power verified
☐ Conveyor motor power verified
☐ Emergency stop wired
Plumbing
☐ Multiple floor sinks installed
☐ Discharge volume verified
☐ Air gaps installed at each drain point
☐ Grease interceptor tied into system
☐ Pulper discharge coordinated (if present)
Booster & Water
☐ Booster heater sized for peak racks/hour
☐ Water pressure balanced across zones
☐ Softener mandatory and installed
Chemical Systems
☐ Detergent pumps installed
☐ Rinse agent pumps installed
☐ Sanitizer pumps installed (if low-temp zones exist)
☐ Chemical SDS binder on site
Structural
☐ Floor load verified by engineer
☐ Seismic anchoring verified where applicable
☐ Vibration isolation pads installed if required
Ventilation
☐ Type II hood installed
☐ Ducting inspected
☐ Condensation drainage installed
FLIGHT-TYPE DISH MACHINES
Prisons, military, stadiums, central commissaries
Electrical
☐ High-capacity service verified
☐ Redundant disconnects installed
☐ Emergency lockout-tagout panel installed
Plumbing
☐ Multiple floor sinks
☐ Oversized grease interceptor
☐ Pulper or scrap system fully coordinated
☐ Sewer authority approval documented
Mechanical
☐ Booster heaters staged properly
☐ Zip heater systems verified
☐ Motor alignment checked
Structural & Safety
☐ Floor loading verified by PE
☐ Walkway access maintained on both sides
☐ Guard rails installed where required
☐ Emergency stop access clear
Commissioning Controls
☐ Conveyor speed calibration planned
☐ Temperature validation ports installed
☐ Chemical verification points accessible
LOW-TEMP (CHEMICAL) DISH MACHINES
Any size operation using sanitizer instead of heat
Chemical Readiness
☐ Correct sanitizer type installed (chlorine, quat, iodine)
☐ Matching test strips on site
☐ Pump tubing color-coded
☐ Injection ports verified
Water & Drain
☐ Water pressure meets chemical dwell time requirement
☐ Proper air gap verified
Inspection Protection
☐ ppm charts mounted at machine
☐ Daily chemical log posted
HIGH-TEMP (HEAT) DISH MACHINES
Any size operation using 180°F final rinse
Booster Readiness
☐ Booster heater installed
☐ Incoming hot water temperature verified
☐ Final rinse thermometer installed externally
☐ Temp log posted
Scale Protection
☐ Softener installed
☐ Delime kit on site
☐ Scale inspection scheduled
UNIVERSAL PRE-INSTALL ITEMS (ALL MACHINES)
☐ NSF certification verified
☐ AHJ approval documented
☐ Manufacturer spec sheet on site
☐ Owner’s manual on site
☐ Service provider contact posted
☐ PM schedule created
☐ Staff training date scheduled
☐ Utilities tagged and verified
☐ Water hardness test recorded
☐ Turnover inspection scheduled
MOST COMMON PRE-INSTALL FAILURES
- No air gap at drain
- Booster heater not coordinated
- Water softener added after failure
- Electrical disconnect missing
- Chemical pumps installed but not calibrated
- No floor sink under conveyor discharge
- No hood over hood machine where required
- No grease interceptor tied to scrap system
Aldevra Pre-Install Rule
If utilities, drainage, water chemistry, and workflow are not verified before delivery, the project is already behind schedule before the first bolt is set.
