Carrier 48TM004-007 Specifications

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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480014-01 Printed in U.S.A. Form 48T-5SI Pg 1 9-05 Replaces: 48T-3SI
Book 1 4
Tab 1a 6a
Installation, Start-Up, and
Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS .........................1
INSTALLATION ...................................1-44
Step 1 — Provide Unit Support ......................2
ROOF CURB
SLAB MOUNT
ALTERATE UNIT SUPPORT
Step 2 — Field Fabricate Ductwork...................2
Step 3 — Install External Trap for Condensate
Drain ..............................................2
Step 4 — Rig and Place Unit .........................4
POSITIONING
Step 5 — Install Flue Hood .........................11
Step 6 — Install Gas Piping.........................11
Step 7 — Make Electrical Connections .............12
FIELD POWER SUPPLY
FIELD CONTROL WIRING
HEAT ANTICIPATOR SETTINGS
Step 8 — Adjust Factory-Installed Options .........16
MANUAL OUTDOOR-AIR DAMPER
CONVENIENCE OUTLET
NOVAR CONTROLS
PREMIERLINK™ CONTROL
OPTIONAL ECOMOMI$ER IV AND ECONOMI$ER2
ECONOMI$ER IV STANDARD SENSORS
ECONOMI$ER IV CONTROL MODES
Step 9 — Adjust Evaporator-Fan Speed ............27
DIRECT-DRIVE MOTORS
BELT-DRIVE MOTORS
PRE-START-UP .....................................45
START-UP .......................................45-49
SERVICE ........................................49-54
TROUBLESHOOTING ............................55-59
INDEX ..............................................60
START-UP CHECKLIST .......................... CL-1
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical compo-
nents. Only trained and qualified service personnel should
install, repair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance func-
tions of cleaning coils and filters and replacing filters. All other
operations should be performed by trained service personnel.
When working on air-conditioning equipment, observe precau-
tions in the literature, tags and labels attached to the unit, and
other safety precautions that apply.
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloth for unbrazing operations. Have
fire extinguishers available for all brazing operations.
INSTALLATION
Unit is shipped in the vertical duct configuration. To convert
to horizontal configuration, remove and save screws from side
duct opening covers and remove covers. Using the same
screws, install covers on vertical duct openings with the
insulation-side down. Seals around duct openings must be
tight. See Fig. 1.
Confirm before installation of unit that voltage, amperage
and circuit protection requirements listed on unit data plate
agree with power supply provided.
Step 1 — Provide Unit Support
ROOF CURB Assemble and install accessory roof curb in
accordance with instructions shipped with curb. See Fig. 2.
Install insulation, cant strips, roofing felt, and counter flashing
as shown. Ductwork must be attached to curb, not to the unit.
The accessory thru-the-bottom power and gas connection pack-
age must be installed before the unit is set on the roof curb. If
field-installed (thru-the-roof curb) gas connections are desired,
use factory-supplied
3
/
4
-in. pipe coupling and gas plate assem-
bly to mount the thru-the-roof curb connection to the roof curb.
Gas connections and power connections to the unit must be
field installed after the unit is installed on the roof curb.
If electric and control wiring is to be routed through
the basepan, attach the accessory thru-the-bottom service
connections to the basepan in accordance with the accessory
installation instructions.
Disconnect gas piping from unit when leak
testing at pressure greater than
1
/
2
psig. Pres-
sures greater than
1
/
2
psig will cause gas
valve damage resulting in hazardous condi-
tion. If gas valve is subjected to pressure
greater than
1
/
2
psig, it must be replaced
before use. When pressure testing field-
supplied gas piping at pressures of
1
/
2
psig
or less, a unit connected to such piping must
be isolated by manually closing the gas
valve.
Before performing service or maintenance operations on
unit, turn off main power switch to unit and install a lock-
out tag. Electrical shock could cause personal injury.
48TF004-007
48TM004-007
Single-Package Rooftop
Gas Heating/Electric Cooling Units
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1 2 ... 62

Summary of Contents

Page 1 - Service Instructions

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

Page 2

10Fig. 6B — Base Unit Dimensions — 48TM007

Page 3 - Fig. 2 — Roof Curb Details

11Do not install unit in an indoor location. Do not locate unitair inlets near exhaust vents or other sources of contaminatedair.Be sure that unit is

Page 4 - DRAIN OUTLET

12Step 7 — Make Electrical ConnectionsFIELD POWER SUPPLY — All units except 208/230-vunits are factory wired for the voltage shown on the nameplate.If

Page 5

13WIRECONNECTIONSTOLOW-VOLTAGESECTION(CONNECTIONBOARD)COOL STAGE 1FANHEAT STAGE 1COOL STAGE 2HEAT STAGE 224 VAC HOT24 VAC COMN/AOUTDOOR AIRSENSORY1/W2

Page 6

14Table 2A — Electrical Data (Without Convenience Outlet)LEGEND*Used to determine minimum disconnect per NEC.†Fuse or HACR circuit breaker.NOTES:1. In

Page 7

15Table 2B — Electrical Data (With Convenience Outlet)LEGEND*Used to determine minimum disconnect per NEC.†Fuse or HACR circuit breaker.NOTES:1. In co

Page 8

16Step 8 — Adjust Factory-Installed OptionsMANUAL OUTDOOR-AIR DAMPER — The outdoor-airhood and screen are attached to the basepan at the bottom ofthe

Page 9

17PREMIERLINK™ CONTROL — The PremierLink control-ler is compatible with Carrier Comfort Network® (CCN) de-vices. This control is designed to allow use

Page 10

18Table 3 — PremierLink Sensor Usage*PremierLink control requires Supply Air Temperature sensor 33ZCSENSAT andOutdoor Air Temperature sensor HH79NZ017

Page 11

19Enthalpy Sensors and Control— The enthalpy control(HH57AC077) is supplied as a field-installed accessory to beused with the EconoMi$er2 damper contr

Page 12

2Curb should be level. Unit leveling tolerances are shown inFig. 3. This is necessary for unit drain to function properly.Refer to Accessory Roof Curb

Page 13

20OPTIONAL ECONOMI$ER IV AND ECONOMI$ER2 —See Fig. 20 for EconoMi$er IV component locations. SeeFig. 21 for EconoMi$er2 component locations.NOTE: Thes

Page 14

21ECONOMI$ER IV STANDARD SENSORSOutdoor Air Temperature (OAT) Sensor— The outdoor airtemperature sensor (HH57AC074) is a 10 to 20 mA deviceused to mea

Page 15

22FOR OCCUPANCY CONTROLREPLACE JUMPER WITHFIELD-SUPPLIED TIME CLOCKLEGENDDCV— Demand Controlled VentilationIAQ — Indoor Air QualityLA — Low Ambient Lo

Page 16 - 3 SCREWS

23Table 4 — Supply Air Sensor Temperature/Resistance ValuesECONOMI$ER IV CONTROL MODESDetermine the EconoMi$er IV control mode before set up ofthe con

Page 17

24Differential Dry Bulb Control— For differential dry bulbcontrol the standard outdoor dry bulb sensor is used in conjunc-tion with an additional acce

Page 18

25Indoor Air Quality (IAQ) Sensor Input— The IAQ inputcan be used for demand control ventilation control based on thelevel of CO2measured in the space

Page 19 - PremierLink

26Exhaust Set Point Adjustment— The exhaust set point willdetermine when the exhaust fan runs based on damper position(if accessory power exhaust is i

Page 20 - C7400A1004

27EconoMi$er IV controller will output the 6.7 volts from theCO2sensor to the actuator when the CO2concentration in thespace is at 1100 ppm. The DCV s

Page 21 - INDOOR COIL ACCESS PANEL

28To adjust belt tension:1. Loosen fan motor mounting nuts.2. Slide motor mounting plate away from fan scroll forproper belt tension (1/2-in. deflecti

Page 22 - FIELD-SUPPLIED TIME CLOCK

29Table 8 — Evaporator-Fan Motor PerformanceLEGENDBHP — Brake Horsepower*Extensive motor and electrical testing on these units ensures thatthe full ho

Page 23

3,Fig. 2 — Roof Curb Details

Page 24

30Table 11 — Fan Performance 48TF,TM004 — Vertical Discharge Units — Standard MotorLEGENDRefer to page 41 for general Fan Performance Data notes.Table

Page 25 - 1100 ppm

31Table 13 — Fan Performance 48TM004 — Vertical Discharge Units — Alternate Motor (Belt Drive)*LEGEND*Motor drive range: 685 to 1045 rpm. All other rp

Page 26

32Table 15 — Fan Performance 48TF,TM005 — Vertical Discharge Units — Standard MotorLEGENDRefer to page 41 for general Fan Performance Data notes.Table

Page 27

33Table 17 — Fan Performance 48TF,TM005 — Vertical Discharge Units — High-Static Motor (Belt Drive)*LEGEND*Motor drive range: 1075 to 1455 rpm. All ot

Page 28 - PLATE NUTS

34Table 19 — Fan Performance 48TF006 Single-Phase — Vertical Discharge Units —Alternate Motor (Belt Drive)*LEGEND*Motor drive range: 875 to 1192 rpm.

Page 29

35Table 21 — Fan Performance 48TM006 Single-Phase — Vertical Discharge Units —Alternate Motor (Belt Drive)*LEGEND*Motor drive range: 900 to 1300 rpm.

Page 30

36Table 23 — Fan Performance 48TF,TM006 — Vertical Discharge Units — High-Static Motor (Belt Drive)*LEGEND*Motor drive range: 1300 to 1685 rpm. All ot

Page 31

37Table 25 — Fan Performance 48TF,TM007 — Vertical Discharge Units — High-Static Motor (Belt Drive)*LEGEND*Motor drive range: 1300 to 1685 rpm. All ot

Page 32

38Table 27 — Fan Performance 48TF004 — Horizontal Discharge Units — Alternate Motor (Belt Drive)*LEGEND*Motor drive range: 760 to 1000 rpm. All other

Page 33

39Table 29 — Fan Performance 48TF,TM004 — Horizontal Discharge Units — High-Static Motor (Belt Drive)*LEGEND*Motor drive range: 1075 to 1455 rpm. All

Page 34

4Step4—RigandPlaceUnit—Inspect unit fortransportation damage. File any claim with transportation agen-cy. Keep unit upright and do not drop. Spreader

Page 35

40Table 31 — Fan Performance 48TF,TM005 — Horizontal Discharge Units — Alternate Motor (Belt Drive)*LEGEND*Motor drive range: 770 to 1175 rpm. All oth

Page 36

41Table 33 — Fan Performance — 48TF,TM006 — Horizontal Discharge Units — Standard MotorLEGENDRefer to this page for general Fan Performance Data notes

Page 37

42Table 35 — Fan Performance 48TF006 Three-Phase — Horizontal Discharge Units —Alternate Motor (Belt Drive)*LEGEND*Motor drive range: 878 to 1192 rpm.

Page 38

43Table 37 — Fan Performance 48TM006 Three-Phase — Horizontal Discharge Units —Alternate Motor (Belt Drive)*LEGEND*Motor drive range: 900 to 1300 rpm.

Page 39

44Table 39 — Fan Performance 48TF,TM007 — Horizontal Discharge Units — Standard Motor (Belt Drive)*LEGEND*Motor drive range: 1070 to 1460 rpm. All oth

Page 40

45PRE-START-UPProceed as follows to inspect and prepare the unit for initialstart-up:1. Remove all access panels.2. Read and follow instructions on al

Page 41

46Cooling — Set space thermostat to OFF position. To startunit, turn on main power supply. Set system selector switch atCOOL position and fan switch a

Page 42

47The evaporator-fan OFF delay can also be modified. Oncethe call for heating has ended, there is a 10-minute period dur-ing which the modification ca

Page 43

48• If SAT > SASP + 5 and economizer position >80%,economizer will go to minimum position for 3 minutes oruntil SAT > 68 F.• If compressor on

Page 44

49HEATING, UNIT WITH ECONOMI$ER2, PREMIERLINK™CONTROL AND A ROOM SENSOR — Every 40 secondsthe controller will calculate the required heat stages (maxi

Page 45

5Table 1A — Physical Data — 48TF004-007LEGEND*Evaporator coil fin material/condenser coil fin material. Contact your localCarrier representative for d

Page 46

50NO CHARGE — Use standard evacuating techniques. Afterevacuating system, weigh in the specified amount of refriger-ant. (Refer to Tables 1A and 1B.)L

Page 47 - Operating Sequence

513040506070809010020 30 40 50 60 70 80SUCTION LINE TEMPERATURE (DEG. F)207276345414483552621689-7 -1 4 10 16 21 27SUCTION LINE TEMPERATURE (DEG. C)3

Page 48

523040506070809010020 30 40 50 60 70 80SUCTION LINE TEMPERATURE (DEG. F)207276345414483552621689-7 -1 4 10 16 21 27SUCTION LINE TEMPERATURE (DEG. C)OU

Page 49

535. To remove motor, remove the 4 screws that hold themotor to mounting plate. Remove the motor cooling fanby removing one setscrew. Then remove nuts

Page 50

54Fig. 54 — Spark AdjustmentLOW HEAT48TFE/TME004, 48TFH/TMH004, 48TFD/TMD005-007, 48TFG/TMG005,006 — 72,000 BTUH INPUT48TFM/TMM004, 48TFL/TML005,006 —

Page 51 - 4 TON UNIT CHARGING CHART

55TROUBLESHOOTINGUnit Troubleshooting —Refer to tables 43-45 andFig. 55 and 56.Table 43 — Heating Service AnalysisTable 44 — IGC Board LED Alarm Codes

Page 52 - 5 TON UNIT CHARGING CHART

56Table 45 — Cooling Service AnalysisPROBLEM CAUSE REMEDYCompressor and Condenser FanWill Not Start.Power failure. Call power company.Fuse blown or ci

Page 53

57EconoMi$er IV Troubleshooting — See Table 46for EconoMi$er IV logic.A functional view of the EconoMi$er is shown in Fig. 55.Typical settings, sensor

Page 54 - Fig. 54 — Spark Adjustment

587. Remove jumper from TR to N.8. Remove jumper from TR to 1.9. Remove 5.6 kilo-ohm resistor from T and T1. Reconnectwires at T and T1.10. Remove jum

Page 55 - Unit Troubleshooting —

59Fig. 56 — Typical Unit Wiring DiagramLEGENDOFM — Outdoor (Condenser) Fan MotorOLR — Overload RelayP—PlugPL — Plug AssemblyQT — Quadruple TerminalRS

Page 56

6Table 1A — Physical Data — 48TF004-007 (cont)LEGEND*Evaporator coil fin material/condenser coil fin material. Contact your localCarrier representativ

Page 57

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

Page 59

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

Page 60 - Tab 1a 6a

7Table 1B — Physical Data — 48TM004-007LEGEND*Evaporator coil fin material/condenser coil fin material. Contact your localCarrier representative for d

Page 61

8Table 1B — Physical Data — 48TM004-007 (cont)LEGEND*Evaporator coil fin material/condenser coil fin material. Contact your localCarrier representativ

Page 62 - III. START-UP:

9Fig. 6A — Base Unit Dimensions — 48TF,TM004-006 and 48TF007

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