100% Performance Guarantee

At John’s Refrigeration we believe in “getting what you pay for”. It seems that integrity is a quality long forgotten. Evidence of this can be seen from field tests conducted by power companies and others who examined air conditioning manufacturer’s efficiency vs. the actual efficiencies that resulted after installation. They found 90% of the units tested exhibited some sort of energy wasting comfort robbing problem. This compromises your family’s safety, health, and comfort.
We believe integrity is the most important quality in business, which is why we instill it consistently thru-out training, service, and installation. We want you to feel like part of the family where you “get what you pay for” and that is why we offer our Performance Guarantee standard with every installation.

1. A load calculation as per ACCA Manual J shall be performed and documented (If air balancing is to be done a room by room load calculation shall be completed).
2. Equipment to be sized as per ARI standards 110/70/75 for Phoenix, AZ.
3. Equipment selections shall be made as per manufacturer performance data.
4. National Balancing Institute and/or ACCA manual D duct design calculations shall be performed and implemented.
5. All equipment shall be installed according to manufacturer’s recommendations.
6. Metal ducts and flex ducts which can be reached shall be sealed with UL approved mastic.
7. Metal ducts and flex ducts shall be installed according to the 2009 Uniform Mechanical Code.
8. Ducts in unconditioned spaces shall be equipped with insulation equal to R-6 or greater.
9. Each branch duct at the plenum box shall be equipped with a balancing damper (where accessible).
10. The combined duct and mechanical-equipment leakage shall be no more than 10% of the total design cfm when duct system can be reached.  (This shall be verified by an air in/out test at start up).
11. Delivered air to each room shall be within 10% of the load calculation and design (when balancing is completed).
12. The average face velocity of the air at any return-air grille with a filter shall not exceed 400 feet per minute.
13. The face velocity of air at any supply register/diffuser shall not exceed an average 600-700 feet per minute, depending on register/diffuser style and manufacturer’s data.
14. Static pressures shall not exceed manufacturer’s specifications.
15. BTU performance of heating and cooling equipment shall be within 10% of the manufacturer’s stated load capacity.
16. Commissioning at equipment start-up shall include adjusting refrigerant charge to within 5% of manufacturer’s specifications (superheat and subcooling method).
17. Air temperature readings in all rooms (on the same level) shall be within 3 degrees Fahrenheit to the thermostat setting (when balancing is done).