Carrier 42DH 06 Installation, Start-Up And Service Instructions Manual page 32

Ductwork Connections
ARE DUCTWORK, FITTINGS AND GRILLES INSTALLED AS REQUIRED? (Y/N) __________
ARE FLEXIBLE DUCT CONNECTIONS AT UNIT?
ARE THE PROPER SUPPLY AND RETURN GRILLE TYPE AND SIZE USED? (Y/N) __________
IS ALL DUCTWORK INSULATED, AS REQUIRED?
IS OUTSIDE AIR CONTROLLED FOR FREEZE PROTECTION?
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?
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
© Carrier Corporation 2019
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53420019-01 Printed in U.S.A. Form 42DH-2SI
(Y/N) __________
(Y/N) __________
(Y/N) __________
__________
__________
(Y/N) __________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
Pg CL-2 8-19 Replaces: 42DH-1SI