Carrier 48TJ016-028 - page 24

L1 _4

L1 -S

- (NOT BSEDI

L1-9 m

PLI _8

TO MAIN PLI _5

CONTROL /_ I

BOX PL1-6

PLI-II 1

PLI*I

PLI_R

PL1-10

(NOTUSED)

LEGEND

DCV -- Demand Controlled Ventilation

IAQ --Indoor Air Quality

LALS I Low Temperature Compressor

Lookout Switch

OAT IOutdoor_Air Temperature

POT -- Potentiometer

-- ORN

(FIE£B

ACCESSORY}

REMOTE MIN

POSITION POT

_E_T[ POT (ISS_hmT "

DISCHARGE AIR

SENSOR (Bk Ohm)

BLK_I_EO -

1 fIELD INSTALLED _IA_

FIAO SENSORI .....

I I OAT TEWPI L

I 1 ENTHALPY SENSOR

II _Lu-

I I .T--

RETURN AIR TEHP!

1 ENTRALPY SEICSOR

IT _---

I I

1 l BLU

I l PNK--_

II RED LALS

I I FIELD SPLICE

,_I aR.

FIELD SPLICE

ECONOMIZER MOTOR

Potentiometer Default Settings: NOTES:

Power Exhaust Middle

Minimum Pos. Fully Closed

DCV Max, Middle

DCV Set Middle

Enthalpy C Setting

YEL

PNK

-8LU

RED

EXH

I_ 1 [_ SET

BLK BV IOV

POS

OPEN

2v IBv

_so. N _ SET

_v lov

/BC

[COBOMISER il

BOARD

©

1, 620 ohm, 1 watt 5% resistor should be removed only when using differential

enthalpy or dry bulb.

2, If a separate field-supplied 24 v transformer is used for the IAQ sensor power

supply, itcannot have the secondary of the transformer grounded.

3, For field-installed remote minimum position POT, remove black wire jumper

between P and P1 and set control minimum position POT to the minimum

position,

Fig. 35 --EconoMi$erlV Wiring

NOTE 1

NOTE 2

J

50HJ540573

ACTUATOR

ASSEMBLY

/

RUN

DIRECT DRIVE

ACTUATOR

500 OHM

RESISTOR- "L_

OAT

RED

PINK

BLUE

BLACK

WHITE

4

3

7

2

8

6

5

1

10

11

9

12

ECONOMI$ER2 PLUG

LEGEND

OAT -- Outdoor Air Temperature Sensor

NOTES:

1. Switch on actuator must be in run position for economizer tooperate.

2. 50HJ540573 actuator consists ofthe 50HJ540567 actuator anda harness with500-ohm resistor.

Fig. 36 -- EconoMi$er2 Wiring

24

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,