Carrier 48TJ016-028 o,

START-UP CHECKLIST

MODEL NO.: SERIAL NO.:

DATE: TECHNICIAN:

PRE-START-UP

[] VERIFY THAT ALL PACKING MATERIALS HAVE BEENREMOVED FROM UNIT

[] VERIFY INSTALLATION OFINDOOR FANMOTOR ADJUSTMENT BOLT AND PLATE(48TJ020-028 ONLY)

[] VERIFY INSTALLATION OFOUTDOOR-AIR HOOD

[] VERIFY INSTALLATION OFFLUE HOOD AND WIND BAFFLE

[] VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTRUCTIONS

[] VERIFY THAT ALL ELECTRICAL CONNECTIONS AND TERMINALS ARE TIGHT

[] CHECK GAS PIPING FOR LEAKS

[] CHECK THAT FILTERS AND SCREENS ARE CLEAN AND IN PLACE

[] VERIFY THAT UNIT IS LEVEL

[] CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE, AND VERIFY SETSCREW

ISTIGHT

[] VERIFY THAT FANSHEAVES ARE ALIGNED AND BELTS ARE PROPERLY TENSIONED

[] VERIFY THAT SCROLL COMPRESSOR ISROTATING IN THE CORRECT DIRECTION

[] VERIFY THAT CRANKCASE HEATER HAS BEEN ENERGIZED FOR 24 HOURS (SIZE 028 AND UNITS WITH

MOISTUREMISER T:'IDEHUMIDIFICATION SYSTEM ONLY)

START-UP

ELECTRICAL

SUPPLY VOLTAGE

COMPRESSOR AMPS COMPRESSOR NO. 1

COMPRESSOR NO. 2

SUPPLY FAN AMPS

LI-L2 L2-L3 L3-LI

LI L2 L3

LI L2 L3

EXHAUST FAN AMPS

TEMPERATURES

OUTDOOR-AIR TEMPERATURE

RETURN-AIR TEMPERATURE

COOLING SUPPLY AIR

GAS HEAT SUPPLY AIR

F DB (Dry-Bulb)

F DB

F

F

F WB (Wet-Bulb)

PRESSURES

GAS INLET PRESSURE

GAS MANIFOLD PRESSURE

REFRIGERANT SUCTION

REFRIGERANT DISCHARGE

IN. WG

STAGE NO. 1 IN. WG

CIRCUIT NO. 1 PSIG

CIRCUIT NO. 1 PSIG

STAGE NO. 2 IN. WG

CIRCUIT NO. 2 PSIG

CIRCUIT NO. 2 PSIG

[] VERIFY REFRIGERANT CHARGE USING CHARGING CHART ON PAGE 42.

GENERAL

[] ECONOMIZERMINIMUM VENTAND CHANGEOVERSETFINGS TOJOB REQUIREMENTS

Copyright 2006 Carrier Corporation

Manufacturer reserves the rightto discontinue, or change at any time, specifications ordesigns without notice and without incurring obligations.

Book 1 14 Catalog No. 04-53480009-01 Printed inU.S.A. Form 48TJ-22SI Pg CL-1 3-06 Replaces: 48TJ-21Sl

Tab 1a16a

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Contents

Main 48TJ016-028 Single-Package Rooftop Units Electric Cooling/Gas Heating Installation, Start-Up and Service Instructions INSTALLATION Step 1 -- Provide Unit Support Fig. 1 -- Horizontal Supply/Return Adapter Installation Step 2 -- Rig and Place Unit -- Do not diop unit; A,R CURB ATTACH DUCT TO ROOF CURB --OUTLINEGPUN,T iBOHPRi5UPPL ENSi Fig. 2 -- Roof Curb Details UNIT LEVELING TOLERANCES _Fro_ edge OFuniL to horizonLaL, (tt 05) Fig. 3 -- Rigging Details Fig. 4- Base Unit Dimensions; 48TJ016,020 Fig. 5 -- Base Unit Dimensions; 48TJ024,028 Table 1-- Physical Data c,rcu,t,* 10-13 I 15-2I 16-3 I 21-0 Table 1 -- Physical Data (cont) Step 3 -- Field Fabricate Ductwork -- Secure all Step 4-- Make Unit Duct Connections -- Unit Fig. 9 -- Flue Hood Location Step 5 -- Install Flue Hood and Wind Baffle -- ,.ii Fig. 10- Combustion FanHousing Location Fig. 11 -- Condensate Drain Details (48TJ016 Shown) Fig. 12- Condensate Drain Piping Details Step 7-- Orifice Change -- This unit is factory as- sembled Table 3 -- Orifice Quantity o& Fig. 13 -- Field Gas Piping Step 9 -- Make Electrical Connections Be certain unused wires ale capped. Failure to do somay &_magethe transformers. I Fig. 15 -- Field Control Thermostat Wiring I ;_ ;__T2Ej AMP 4--+--t--- ' Table 5 -- Electrical Data cCt os Step 10 -- Make Outdoor-Air Inlet Adjust- ments I / /I \/ / ol .j \ 10 o---1 ooo o Table 6 -- Motormaster VControl Package Usage Step 13 --Adjust Factory-Installed Options TH:I 0 Fig. 24 -- PremierLink Controller : L Fig. 25 --PremierLink TM Controls Wiring I ' L: L Page I / \ [ll Fig. 29 -- Differential Enthalpy Control Wiring A( CSOD+rn-- /OUTDOOR[ SRI-h+ID- LED Fig. 30 -- Outdoor and Return Air Sensor Wiring Connections for Differential Enthalpy Control e, Fig. 32--EconoMiSerlVComponent Locations-- End View Fig. 34- EconoMi$er2 Component Locations IT _--- _so. N _ SET Fig. 35 --EconoMi$erlV Wiring Table 11 -- Supply Air Sensor Temperature/ Resistance Values Table 12 -- EconoMi$erlV Sensor Usage "t,4 Fig. 38 -- Outside Air Temperature Changeover Set Points Fig. 39 -- Return Air Temperature or Enthalpy Sensor Mounting Location XI IX _ ..... ..... .... Fig. 40 -- Enthalpy Changeover Set Points Fig. 41 -- EconoMi$erlV Controller AOlI'_ocv_ so+N ' Page Table 13 -- 002 Sensor Standard Settings Step 14 -- Install Humidistat for Optional MoistureMi$er TM Package-- MoistureMi$er dehu- 29 midification Fig. 44 -- Typical MoistureMi$er Dehumidification Package Control Box START-UP Unit Preparation Table 14 -- Fan Performance -- 48TJD016 (Low Heat Units) Table 15 -- Fan Performance -- 48TJD020 and 024 (Low Heat Units) Table 16 -- Fan Performance -- 48TJD028 (Low Heat Units) Table 17 -- Fan Performance -- 48TJF016 (High Heat Units) .3.3 Table 18 -- Fan Performance- 48TJF020 and 024 (High Heat Units) Table 19 -- Fan Performance -- 48TJF028 (High Heat Units) Table 20 -- Air Quantity Limits Table 21 -- Accessory/FlOP Static Pressure* (in. wg) -- 48TJ016 Table 22 -- Accessory/FlOP Static Pressure* (in. wg) -- 48TJ020-028 Table 23 -- MoistureMi$er TM Dehumidification Package Static Pressure Drop (in. wg) Table 24 -- Fan Rpm at Motor Pulley Settings* Table 25 -- Evaporator-Fan Motor Data Table 26 -- Evaporator-Fan Motor Efficiency Operating Sequence Page J Fig. 46 -- DX Cooling Temperature Control Example \ / Fig. 49 -- Removing Heat Exchanger Ceramic Baffles and Clips Lubrication Evaporator Fan Performance Adjustment (Fig. 50-52) -- Fan motor pulleys are factory set for speed j, Fig. 51 -- 48TJ016 Evaporator-Fan Motor Adjustment \ Fig. 52 -- 48TJ020-028 Evaporator-Fan Motor Section Fig. 50 -- Evaporator-Fan Pulley and Adjustment Belt Tension Adjustment _f =....N _121I I 'Abd_HAR'G'E'I_AB'Ot/&CORV'E soolillilillilili ililli I IIIIIIIIIIIIIIIIII1 t" 011111111IIIIIIIIJ,Z'II lili ilili iliiJZliliiI III I I III I IJZI"I4Eb6&&&.'ARGE,FBELowCURVE III1 11 III Main Burners Filter Drier- Protective Devices Relief Devices Control Circuit, 24-7--This Optional Hinged Access Doors @ @ 48TJD016 @ @ @ @ o(_o @@ Page 0 II..Iii ii__ i o_, --I I II.=, []_" 0 I LEGEND AND NOTES FOR FIG. 58 AND 59 TROUBLESHOOTING Unit Troubleshooting- Refer to Tables 27-29 and EconoMi$erlV Troubleshooting-- See Table 30 Table 27 -- Cooling Service Analysis Table 28 -- Heating Service Analysis Table 29 -- MoistureMi$er TM Dehumidification Subcooler Service Analysis 5O I_-INDO(:W_FANI)EI.AY J___(HEATING) 6FI.ASHES-iNDUCEDDRAFT MOTORFAULT (NOsigr_frem f_'_ _ !_t 8enm:,rforB0mKx_,es) F I , I I _FrER_OONI_(O_LESS.:T_ETI_e I I. I t Table 30 -- EconoMi$erlV Input/Output Logic Fig. 61 -- EconoMiSerlV Functional View INDEX SERVICE TRAINING Page START-UP CHECKLIST PRE-START-UP GENERAL [] ECONOMIZERMINIMUM VENTAND CHANGEOVERSETFINGS TOJOB REQUIREMENTS o,