Preliminary Information; Pre-Start-Up - Carrier WeatherExpert 48LC 08-12 Installation Instructions Manual

Single package rooftop gas heat/electric cooling unit with puron (r-410a) refrigerant
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START-UP CHECKLIST FOR 48LC SINGLE PACKAGE ROOFTOP UNIT
NOTE: To avoid injury to personnel and damage to equipment or
property when completing the procedures listed in this start-up
checklist, use good judgment, follow safe practices, and adhere
to the safety considerations/information as outlined in preced-
ing sections of this Installation Instruction document.
I. PRELIMINARY INFORMATION
MODEL NO. ____________________________________________
JOB NAME _____________________________________________
SERIAL NO.. ___________________________________________
ADDRESS _____________________________________________
START-UP DATE________________________________________
TECHNICIAN NAME _____________________________________
ADDITIONAL ACCESSORIES
_____________________________________________________________________________________________________
II. PRE-START-UP
Verify that all packaging materials have been removed from unit (Y/N) _____
Verify installation of outdoor air hood (Y/N) _____
Verify installation of flue exhaust and inlet hood (Y/N) _____
Verify that condensate connection is installed per instructions (Y/N) _____
Verify that all electrical connections and terminals are tight (Y/N) _____
Verify gas pressure to unit gas valve is within specified range (Y/N) _____
Check gas piping for leaks (Y/N) _____
Check that indoor-air filters are clean and in place (Y/N) _____
Check that outdoor-air inlet screens are in place (Y/N) _____
Verify that unit is level (Y/N) _____
Check fan wheels and propeller for location in housing/orifice and verify setscrew is tight (Y/N) _____
Verify that fan sheaves are aligned and belts are properly tensioned (Y/N) _____
Verify that scroll compressors are rotating in the correct direction (Y/N) _____
Verify installation of thermostat (Y/N) _____
Verify that crankcase heaters have been energized for at least 24 hours (Y/N) _____
III. START-UP
ELECTRICAL
Supply Voltage
Compressor Amps 1
Compressor Amps 2
Supply Fan Amps
TEMPERATURES
Outdoor-air Temperature
Return-air Temperature
Cooling Supply Air Temperature
Gas Heat Supply Air Temperature
PRESSURES
Gas Inlet Pressure
Gas Manifold Pressure
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480301-01
All manuals and user guides at all-guides.com
(Remove and Store in Job File)
L1-L2_____________
L1 _____________
L1 _____________
L1 _____________
_____________ °F DB (Dry Bulb)
_____________ °F DB
_____________ °F
_____________ °F
_____________IN. WG
STAGE 1
_____________IN. WG
STAGE 2
_____________IN. WG
Printed in U.S.A.
Form 48LC-8-12-07SI
L2-L3_____________
L2 _____________
L2 _____________
L2 _____________
_____________ °F Wb (Wet Bulb)
Pg CL-1
5-2020
L3-L1_____________
L3 _____________
L3 _____________
L3 _____________
Replaces: 48LC-8-12-06SI

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