Summary
For High-Temperature Commercial Dishwashers
Use this checklist before purchasing or installing any high-temp commercial dishwasher or dish machine.
1. Dishwasher & Operation Profile
☐ Dishwasher Type:
☐ Undercounter
☐ Door-Type (Hood)
☐ Conveyor
☐ Flight-Type
☐ Manufacturer & Model: ________________________
☐ High-Temp Machine Confirmed (180°F final rinse required)
☐ Meals Served Per Peak Hour: ___________________
☐ Estimated Racks Per Hour: _____________________
☐ Continuous Operation During Peaks? ☐ Yes ☐ No
Why this matters: Booster size is directly tied to rack volume and GPM demand.
2. Incoming Water Conditions
☐ Incoming Hot Water Temperature (Actual Measured): ______ °F
☐ Incoming Cold Water Temperature: ______ °F
☐ Incoming Water Pressure: ______ PSI
☐ Incoming Water Hardness Known? ☐ Yes ☐ No
If yes, hardness level: __________ gpg or ppm
Key rule: If your building water cannot reliably deliver 140°F+ at the dishwasher, the booster must make up the full temperature rise to 180°F.
3. Required Final Rinse Performance
☐ Final Rinse Target: 180°F at the manifold
☐ Dishwasher Manufacturer Final Rinse GPM Requirement: ______ GPM
☐ Required Temperature Rise:
(180°F – incoming hot water temp) = ______ °F rise needed
Why this matters: Undersized boosters cannot achieve the required heat rise under real load.
4. Booster Heater Sizing & Output
☐ Booster Type:
☐ Electric
☐ Gas
☐ Booster Capacity (BTU/hr or kW): __________________
☐ Recovery Rate Can Meet Peak Rack Demand: ☐ Yes ☐ No
☐ Dedicated to Dishwasher Only (Not shared): ☐ Yes ☐ No
Red Flag: Sharing a booster with other equipment is a common cause of temperature failure.
5. Electrical or Gas Utility Verification
If Electric Booster:
☐ Voltage Available:
☐ 208V
☐ 240V
☐ 480V
☐ Phase:
☐ Single
☐ Three-Phase
☐ Dedicated Circuit Confirmed: ☐ Yes ☐ No
☐ Electrical Panel Can Support Load: ☐ Yes ☐ No
If Gas Booster:
☐ Gas Type:
☐ Natural Gas
☐ LP
☐ Gas Line Sized for Booster Load: ☐ Yes ☐ No
☐ Venting / Exhaust Path Approved: ☐ Yes ☐ No
☐ Combustion Air Clearance Verified: ☐ Yes ☐ No
6. Water Treatment & Scale Protection (Warranty Critical)
☐ Sediment Filter Installed
☐ Carbon Filter Installed
☐ Water Softener Installed
☐ RO System (If required for glassware)
☐ Deliming Schedule Established
☐ Scale Protection Required by Manufacturer: ☐ Yes ☐ No
Important: Many manufacturers void booster warranties without documented water treatment.
7. Plumbing & Drainage Coordination
☐ Indirect Drain with Air Gap Installed
☐ Floor Sink Sized for Booster Discharge
☐ No Direct Sewer Connections
☐ Drain Line Protected from Scale Blockage
☐ No Standing Wastewater Under Booster
8. Location & Access
☐ Booster Located Within Code-Required Distance from Dishwasher
☐ Service Access Clearance Maintained
☐ Not Blocked by Other Equipment
☐ Not Installed Under Electrical Panels
☐ No Storage on Top of Booster
9. Inspection & Verification Readiness
☐ Built-In Thermometer Working
☐ External Final-Rinse Thermometer Available
☐ Staff Trained on:
- Required 180°F final rinse
- Where to check the temperature
☐ Booster Included in PM Log
☐ Daily Temperature Checks Logged
10. Common Booster Heater Failure Risks (Pre-Install Red Flags)
- Booster undersized for rack volume
- No water softener on hard water
- Electrical service not confirmed before install
- Gas venting not approved
- Shared booster between multiple machines
- No way to verify final rinse temperature
Buyer Sign-Off Section (Optional for Sales Use)
Facility Name: __________________________
Project Manager: ________________________
Dishwasher Model: ______________________
Booster Heater Model: __________________
☐ All utility requirements verified
☐ Water treatment included
☐ Final rinse capacity confirmed
☐ Booster coordinated with dishwasher supplier
Signature: _________________________ Date: __________
Aldevra Best-Practice Reminder
The dishwasher cannot sanitize if the booster heater is undersized, scaled, or improperly powered. These two components must be engineered as one sanitation system.
