![background image](http://html1.mh-extra.com/html/carrier/42dh-06/42dh-06_installation-start-up-and-service-instructions-manual_2562614032.webp)
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
Pg CL-2
8-19
Replaces: 42DH-1SI
© Carrier Corporation 2019
-
- -
- -
-
- -
-
- -
-
- -
-
- -
- -
-
- -
-
- -
-
- -
- -
-
- -
-
- -
-
- -
-
- -
- -
-
- -
-
- -
-
- -
-
- -
- -
-
- -
-
- -
-
- -
- -
-
- -
-
- -
-
- -
-
- -
- -
-
- -
-
- -
-
- -
- -
-
- -
-
- -
-
- -
-
- -
- -
-
- -
-
- -
-
- -
-
- -
- -
-
- -
-
- -
-
- -
- -
-
- -
-
- -
-
- -
-
- -
- -
-
- -
-
- -
-
- -
- -
-
- -
-
- -
-
- -
-
- -
- -
-
--
- -
-
- -
- -
-
- -
-
- -
-
- -
- - -
CUT ALON
G
DOTT
E
D
LINE
CU
T 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
__________