Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53420022-01 Printed in U.S.A. Form 42DHV-2SI Pg CL-2 1-22 Replaces: 42DHV-1SI
© 2022 Carrier
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CUT ALONG DOTTED LINE CUT ALONG DOTTED LINE
Ductwork Connections
ARE DUCTWORK, FITTINGS AND GRILLES INSTALLED AS REQUIRED? (Y/N) __________
ARE FLEXIBLE DUCT CONNECTIONS AT UNIT? (Y/N) __________
ARE THE PROPER SUPPLY AND RETURN GRILLE TYPE AND SIZE USED? (Y/N) __________
IS ALL DUCTWORK INSULATED, AS REQUIRED? (Y/N) __________
IS OUTSIDE AIR CONTROLLED FOR FREEZE PROTECTION? (Y/N) __________
Electrical Connections
REFER TO UNIT WIRING DIAGRAM TO ENSURE CONNECTIONS WERE MADE.
CONNECT INCOMING POWER SERVICE OR SERVICES. __________
INSTALL AND CONNECT “FURNISH ONLY” PARTS. __________
IS ALL FIELD WIRING IN CODE COMPLIANCE? (Y/N) __________
Unit Start-up
PERFORM GENERAL VISUAL UNIT AND SYSTEM INSPECTION __________
CHECK ALL WIRING FOR SECURE CONNECTIONS __________
TIGHTEN ALL SET SCREWS __________
CHECK CONDENSATE DRAIN CONNECTION __________
VERIFY TRAP IS DEEP ENOUGH __________
PRIME THE TRAP WITH WATER __________
CHECK SUPPLY AND RETURN WATER CONNECTIONS FOR LEAKS __________
FILL SYSTEMS WITH WATER/REFRIGERANT __________
OPEN AIR VENT ON TOP OF COIL TO VENT AIR OUT OF SYSTEM __________
FLUSH WATER SYSTEMS __________
RECORD ELECTRICAL SUPPLY VOLTAGE __________
CHECK FOR PROPER FAN ROTATION __________
DUCTWORK AND GRILLES IN PLACE __________
ALL UNIT PANELS AND FILTERS IN PLACE __________
START FANS, PUMPS, CHILLERS, ETC. __________
CHECK FOR OVERLOAD CONDITIONS OF ALL UNITS __________
CHECK ALL DUCTWORK AND UNITS FOR AIR LEAKS __________
BALANCE WATER SYSTEMS, AS REQUIRED __________
BALANCE AIR SYSTEMS, AS REQUIRED __________
RECORD ALL FINAL SETTINGS FOR FUTURE USE __________
CHECK PIPING AND DUCTWORK FOR NOISE OR VIBRATION __________
CHECK ALL DAMPERS FOR PROPER OPERATION __________
VERIFY PROPER COOLING OPERATION __________
VERIFY PROPER HEATING OPERATION __________
REINSTALL ALL COVERS AND ACCESS PANELS __________
VERIFY PROPER CONDENSATE DRAINAGE __________
Recommended Maintenance
Quarterly
CHANGE AIR FILTERS __________
Annually–In Addition to Quarterly Maintenance
INSPECT ALL WIRING CONNECTIONS AND TIGHTEN, IF NECESSARY __________
CLEAN COIL AND DRAIN PAN __________
CLEAN BLOWER WHEEL AS NEEDED __________
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