Carrier MPE62L-10R, 50MP62L-10R, 48MPD User Manual

0 (0)

48MPD,MPE62L-10R 50MP62L-10R Single Package Electric Cooling Units

and Gas Heating/Electric Cooling Units With Product Integrated Controls

Installation, Start-Up and Service

Instructions

CONTENTS

 

Page

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . .

2

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Unit Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Roof Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Slab Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Field-Fabricated Ductwork . . . . . . . . . . . . . . . . . . 3

Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Condensate Drains . . . . . . . . . . . . . . . . . . . . . . . . . 3

Condensate Coil Shipping Covers . . . . . . . . . . 3

Install Outdoor Hoods . . . . . . . . . . . . . . . . . . . . . . 3

Make Electrical Connections . . . . . . . . . . . . . . . . 14

· POWER SUPPLY

Field Electrical Connections . . . . . . . . . . . . . . . . 14

· POWER WIRING

Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

·SENSORS

·HUMIDITY CONTROL AND HOT WATER AND STEAM VALVES

·SPACE TEMPERATURE SENSOR (T55)

·SPACE TEMPERATURE SENSOR (T56) (CV Applications Only)

·SPACE TEMPERATURE AVERAGING

·HEAT INTERLOCK RELAY (VAV Units Only Ð Not Necessary For DAV Applications)

·OPTION AND ACCESSORY CONTROL WIRING

Carrier Comfort Network Interface . . . . . . . . . . 23

Air Pressure Tubing . . . . . . . . . . . . . . . . . . . . . . . . 24

Gas Piping (48 Series Units Only) . . . . . . . . . . . . 26

Installing Flue/Inlet Hoods

(48MP Units Only) . . . . . . . . . . . . . . . . . . . . . . . . . 26

Fan Isolator Adjustment . . . . . . . . . . . . . . . . . . . . 27

Check Compressor Mounting . . . . . . . . . . . . . . . 27

Install Accessories . . . . . . . . . . . . . . . . . . . . . . . . . 27

PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-38

System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Compressor Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Evaporator-Fan Belts, Pulleys,

and Sheaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Controls Con®guration and Quick Test . . . . . . 35

·SUPPLY FAN STATUS SWITCH (FS)

·CHECK FILTER SWITCH (CFS)

·ENTHALPY CONTROL SET POINT

·KEYPAD AND DISPLAY MODULE (HSIO) CONFIGURATION

·SET UNIT TYPE

·ENTER JOB SET POINT VALUES

·CONFIGURE UNIT CONTROLS AND FUNCTIONS

·QUICK TEST FUNCTION

Page

Gas Pressure Check . . . . . . . . . . . . . . . . . . . . . . . . 38

Check Supply Fan Rotation . . . . . . . . . . . . . . . . . 38

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-42

Initial Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Operating Sequences . . . . . . . . . . . . . . . . . . . . . . 39

·SUPPLY FAN

·ECONOMIZER

·COOLING (All Units)

·OCCUPIED COOLING

·UNOCCUPIED COOLING

·OVERRIDES

·ADAPTIVE OPTIMAL START

·ADAPTIVE OPTIMAL STOP (CV Applications Only)

·GAS HEATING, OPERATION (48MP Units Only)

Control Loop Checkout . . . . . . . . . . . . . . . . . . . . . 41

IAQ Control Loop Adjustment . . . . . . . . . . . . . . . 42

Lead/Lag Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Final Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

CONTROL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . 42-45

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

·PROCESSOR MODULE NO. 1

·PROCESSOR MODULE NO. 2

·HIGH-VOLTAGE RELAY MODULES (DSIO)

·KEYPAD AND DISPLAY MODULE (HSIO)

Default Set Points/Changing Set Points . . . . . 43

Motor Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Variable Frequency Drive (VFD) . . . . . . . . . . . . . 43

· DISPLAY AND KEYPAD

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45-55

Service Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

·UNIT CONTROL BOX

·COMPRESSORS

·LIQUID SERVICE VALVES, SOLENOID VALVES, FILTER DRIERS, AND SIGHT GLASSES

·EVAPORATOR-FAN MOTORS, PULLEYS, AND BELTS

·POWER EXHAUST MOTORS, PULLEYS, AND BELTS

·GAS HEAT SECTION

·UNIT CONTROL BOX

·ECONOMIZER DAMPER MOTORS

·RETURN-AIR FILTERS

·CONDENSER FANS AND FAN MOTORS

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Manufacturer reserves the right to discontinue, or change at any time, speci®cations or designs without notice and without incurring obligations.

Book

1

1

 

PC 111

Catalog No. 534-893

Printed in U.S.A.

Form 48/50MP-1SI

Pg 1

12-98

Replaces: 50MP-1SI

Tab

1a

1b

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTENTS (cont)

Page

Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

·COMPRESSORS

·FAN SHAFT BEARINGS

·FAN MOTOR BEARINGS

·DOOR HINGES

Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Refrigerant Circuit . . . . . . . . . . . . . . . . . . . . . . . . . 47

Oil Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Moisture/Liquid Indicator . . . . . . . . . . . . . . . . . . . 49

Filter Driers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Liquid Line Service Valve . . . . . . . . . . . . . . . . . . . 50

Compressor Suction and Discharge

Service Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

High-Pressure Switch . . . . . . . . . . . . . . . . . . . . . . 50

Low-Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . 50

Pressure Relief . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

·EVAPORATOR FAN AND POWER EXHAUST MOTOR PLATE

·BELT INSTALLATION AND TENSIONING

·PULLEY ALIGNMENT

Gas Valve Adjustment . . . . . . . . . . . . . . . . . . . . . . . 52

· NATURAL GAS

Page

Main Burners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

· MAIN BURNER REMOVAL

Protective Devices . . . . . . . . . . . . . . . . . . . . . . . . . 52

·COMPRESSOR PROTECTION

·EVAPORATOR-FAN MOTOR PROTECTION

·CONDENSER-FAN MOTOR PROTECTION

·HIGHAND LOW-PRESSURE SWITCHES

Variable Frequency Drive (VFD) . . . . . . . . . . . . . 53

·SUPPLY FAN VFD

·EXHAUST FAN VFD

·DISPLAYING FAULT SEQUENCE

Control Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Processor Module(s) (PSIO) . . . . . . . . . . . . . . . . 54

High-Voltage Relay Modules

(DSIO1 and DSIO2) . . . . . . . . . . . . . . . . . . . . . . . . 54

Refrigerant Feed Components . . . . . . . . . . . . . . 54 Thermostatic Expansion Valve (TXV) . . . . . . . . 54

Hot Gas Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Condenser Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Compressor Removal . . . . . . . . . . . . . . . . . . . . . . 55

Compressor Replacement . . . . . . . . . . . . . . . . . . 55

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . 55-58 START-UP CHECKLIST . . . . . . . . . . . . . . CL-1 to CL-4

GENERAL

This installation instruction contains base unit installation, start-up, and service instructions only. For complete information on PIC (Product Integrated Controls) controls and troubleshooting, refer to separate Controls and Troubleshooting literature also enclosed in this literature packet.

IMPORTANT:

1.Tune all loops immediately after starting units. Refer to Control Loop Checkout section on page 40 for more information on tuning loops.

2.The Data Reset function should be performed any time one or more of the unit factory con®guration values are changed.

3.The HSIO (human sensor input/output) keypad and display module is required for initial start-up of unit. All units are shipped in STANDBY mode. The HSIO must be used to change the unit to RUN mode. The HSIO is not required for normal operation, however, at any time the unit needs to be transferred back into STANDYBY mode, such as when servicing a unit, it must be done with the HSIO.

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical components. Only trained and quali®ed service personnel should install, repair, or service air-conditioning equipment.

Untrained personnel can perform basic maintenance functions of cleaning coils and ®lters and replacing ®lters. All other operations should be performed by trained service personnel. When working on air-conditioning equipment, observe precautions in the literature, tags and labels attached to the unit, and other safety precautions that may apply.

Follow all safety codes, including ANSI (American National Standards Institute) Z223.1. Wear safety glasses and work gloves. Use quenching cloth for unbrazing operations. Have ®re extinguisher available for all brazing operations.

Before performing service or maintenance operations on unit, turn off main power switch to unit. Electrical shock could cause personal injury.

Do not store or use gasoline or other ¯ammable vapors and liquids in the vicinity of this or any other appliance.

Improper installation, adjustment, alteration, service, or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information, consult a quali®ed installer or service agency.

This unit uses a microprocessor-based electronic control system. Do not use jumpers or other tools to short out components, or to bypass or otherwise depart from recommended procedures. Any short-to-ground of the control board or accompanying wiring may destroy the electronic modules or electrical components.

Disconnect gas piping from 48 Series units when leak testing at pressures greater than 0.5 psig. Pressures greater than 0.5 psig will cause gas valve damage resulting in a hazardous condition. If gas valve is subjected to pressure greater than 0.5 psig, it must be replaced. When pressure testing ®eld-supplied gas piping at pressures of 0.5 psig or less, the unit connected to such piping must be isolated by manually closing the gas valve.

2

INSTALLATION

Jobsite Survey Ð Complete the following checks before installation.

1.Consult local building codes and the NEC (National Electrical Code) (ANSI/NFPA [National Fire Protection Association] 70) for special installation requirements.

2.Determine unit location (from project plans) or select unit location.

3.Check for possible overhead obstructions which may interfere with unit lifting or rigging.

Do not lift unit with forklift truck. Move unit with overhead rigging only.

Unit Placement Ð Inspect unit for transportation damage. File claim with transportation agency.

Provide clearance around and above unit for air¯ow, safety, and service access. Do not restrict top (area above condenser fans) in any way. Allow at least 6 ft on all sides for rated performance, code compliance, and service.

Check unit dimensional drawings for unit arrangement and minimum performance and service clearances.

Do not install unit in an indoor location. Do not locate air inlets near exhaust vents or other sources of contaminated air.

On units equipped with power exhaust option, high velocity air is exhausted out the hood. Unit should be positioned with at least 10 ft clearance between the exhaust hood and any obstruction. Although unit is weatherproof, guard against water from higher level runoff and overhangs.

Level by using unit frame as a reference. Physical data is shown in Tables 1-4.

Roof Mount Ð Check building codes for weight distribution requirements. Unit weight is shown in Table 1. Unit may be mounted on class A, B, or C roo®ng material.

ROOF CURB Ð Assemble and install as described in instructions shipped with the accessory. Accessory roof curb and information required to ®eld fabricate a roof curb is shown in Fig. 1 and 2. Install insulation, cant strips, roo®ng, and counter ¯ashing as required. For unit condensate drain to function properly, curb must be level or within tolerances shown in Fig. 1 and 2.

STEEL BEAMS Ð If roof curb is not used, support unit with steel beams along its entire length and then support steel as required. As a minimum, unit must be supported across its width at each lifting lug location.

Slab Mount Ð Provide a level concrete slab that extends beyond unit cabinet at least 6 inches. Make a slab 8 in. thick with 4 in. above grade. Use gravel apron in front of condenser coil air inlet to prevent grass and foliage from obstructing air¯ow. Ensure that slab is of sufficient height to allow for 7-in. condensate trap.

Field-Fabricated Ductwork Ð Units are designed for vertical supply/return only. Field-fabricated ductwork should be attached to the roof curb. Supply and return duct dimensions are shown in Fig. 1-6.

To attach ductwork to roof curb, insert duct approximately 10 to 11 in. up into roof curb. Connect ductwork to 14-gage roof curb material with sheet metal screws driven from inside of the duct.

Secure all ducts to the building structure, using ¯exible duct connectors between roof curb and ducts as required. Ducts passing through an unconditioned space must be insulated and covered with a vapor barrier. Outlet grilles must not lie directly below unit discharge. The return duct must have a 90-degree elbow before opening into the building space if unit is equipped with power exhaust.

Design supply duct strong enough to handle expected static pressures.

For vertical supply and return units, tools or parts could drop into ductwork and cause an injury. Install 90 degree turns in the supply and return ductwork between the unit and the conditioned space. If a 90 degree elbow cannot be installed, then grilles of sufficient strength and density should be installed to prevent objects from falling into the conditioned space.

Rigging Ð Do not drop unit; keep upright. Use spreader bars over unit to prevent sling or cable damage. Leave condenser coil shipping protection in place while rigging to prevent coil damage. All lifting lugs MUST be used when lifting unit.

Level by using unit frame as a reference. See Fig. 7 for information. Unit and accessory weights are shown in Tables 1-4. Weight distribution and center of gravity can be found in Fig. 8.

Condensate Drains Ð The condensate drain connection is a 1 1¤2-in. NPT pipe connection located on the right hand side of the unit. See Fig. 9.

NOTE: Use a trap of at least 7-in. deep.

Condenser Coil Shipping Covers Ð Remove and discard.

Install Outdoor Hoods

1.Outdoor-air hoods are shipped bolted to the unit in a shipping position. To open hoods, remove the 3 holddown bars holding the air hood in shipping position. See Fig. 10.

2.Lift up the highest hood top and swing out hood sides to form the outside frame of the air hood. Fasten hood top to hood sides at middle and top holes only, using two screws on each side. See Fig. 11.

3.Remove the bottom hood block-off plate and set aside.

4.Swing up second hood (from the top of unit) into place and fasten to hood sides with screws provided using upper hole only.

5.Swing up third hood (from the top of unit) into place and fasten to hood sides with screws provided using upper hole only.

6.Swing up fourth hood (bottom hood) into place. Before fastening hood to hood sides, swing down bottom ®lter rack. Fasten hood to hood sides with screws provided using upper hole only.

7.Attach block off plate removed from Step 3.

8.Clip wire tie holding ®lter track. Swing ®lter track into position and fasten to hood sides using screws provided. Repeat until all 4 ®lter racks have been installed.

9.Apply a bead of RTV or similar sealant to corner of each hood at pivot point to prevent water leaks.

Copy continues on page 14.

3

Table 1 Ð Physical Data

 

BASE UNIT 48/50MP

62L

 

 

70M

 

 

82N

NOMINAL CAPACITY (tons)

80

 

 

 

90

 

 

 

105

OPERATING WEIGHT (lb)

 

 

 

 

 

 

 

 

 

 

Base Unit (48MP/50MP)

16,810/16,550

 

18,060/17,800

22,660/22,400

Copper Condenser Coils

675

 

 

725

 

 

725

Exhaust Fan

1,675

 

 

1,775

 

 

2,375

COMPRESSORS

 

 

 

 

Semi-Hermetic

 

 

 

Number of Refrigerant Circuits

2

 

 

 

2

 

 

 

2

 

Circuit (No. of Cylinders)

A (6)

 

B (6)

 

A1 (6), A2 (4)

 

B (6)

A1 (6), A2 (4)

 

B1 (6), B2 (6)

Model 06E

−299

 

−299

 

−275, −250

 

−299

−265, −250

 

−265, −265

Oil Charge (pints)

19

 

19

 

19, 14

 

19

19, 14

 

19,19

Capacity Steps (%)

17,33,50,67,83,100

 

11,22,33,41,56,67,78,89,100

18,26,35,44,53,56,65,74,82,91,100

REFRIGERANT

 

 

 

 

 

R-22

 

 

 

Operating Charge (lb), Sys 1/Sys 2 (Standard Coil)

78/78

 

 

85/82

 

 

85/82

Operating Charge (lb), Sys 1/Sys 2 (Alternate Coil)

83/83

 

 

94/85

 

 

92/88

CONDENSER COILS

 

 

 

 

Grooved Tube (3¤8-in. OD)

 

 

 

Quantity

 

4

 

 

 

4

 

 

 

4

 

Rows...Fins/in.

3...17

 

 

3...17

 

 

3...17

Total Face Area (sq ft)

116.7

 

 

128.3

 

 

128.3

EVAPORATOR COILS

 

 

 

 

Smooth Tube (5¤8-in. OD)

 

 

 

Quantity

 

2

 

 

 

2

 

 

 

2

 

Rows...Fins/in.

 

 

 

 

 

 

 

 

 

 

Standard

3...14

 

 

3...14

 

 

3...14

Alternate

4...14

 

 

4...14

 

 

4...14

Total Face Area (sq ft)

62.6

 

 

 

70.0

 

 

82.0

Refrigerant Feed

 

 

 

 

 

 

 

 

 

 

Device...No. per Circuit

TXV...2

 

 

TXV...2

 

TXV...2

EVAPORATOR FANS

 

 

 

 

 

 

 

 

 

 

Forward Curved Fan

 

 

 

 

 

 

 

 

 

 

Motor Hp

30

 

40

 

40

 

50

40

 

50

Motor Frame Size

286T

 

324T

 

324T

 

326T

324T

 

326T

Efficiency at Full Load (%)

 

 

 

 

 

 

 

 

 

 

Standard Efficiency

92.4

 

93.0

 

93.0

 

93.0

93.0

 

93.0

High Efficiency

93.6

 

94.5

 

94.5

 

94.5

94.5

 

94.5

Fan Pulley Pitch Diameter (in.)

18.4

 

16.0

 

15.4

 

15.4

20.0

 

18.4

Motor Pulley Pitch Diameter (in.)

6.2

 

6.4

 

5.6

 

6.4

5.8

 

6.0

Fan Rpm

608

 

705

 

658

 

747

526

 

590

Belts

Quantity...Model No.

3...BX128

 

4...BX124

 

5...BX124

 

5...BX124

5...BX115

 

6...BX112

Center Distance Range (in.)

42.1-46.1

 

43.1-48.2

 

43.1-48.2

 

43.1-48.2

35.4-40.2

 

35.4-40.2

Maximum Rpm

835

 

835

 

835

 

835

715

 

715

Air Foil Fan

 

 

 

 

 

 

 

 

 

 

Motor Hp

30

 

40

 

40

 

50

40

 

50

Motor Frame Size

286T

 

324T

 

324T

 

326T

324T

 

326T

Efficiency at Full Load (%)

 

 

 

 

 

 

 

 

 

 

Standard Efficiency

92.4

 

93.0

 

92.4

 

93.0

92.4

 

93.0

High Efficiency

93.6

 

94.5

 

93.6

 

94.5

93.6

 

94.5

Fan Pulley Pitch Diameter (in.)

11.0

 

12.4

 

12.4

 

9.1

12.5

 

12.5

Motor Pulley Pitch Diameter (in.)

7.4

 

9.4

 

9.4

 

7.5

6.9

 

7.5

Fan Rpm

1192

 

1337

 

1337

 

1442

966

 

1050

Belts

Quantity...Model No.

3...B111

 

3...B120

 

3...B120

 

3...5VX1120

3...5VX1060

 

3...5VX1060

Center Distance Range (in.)

39.7-43.7

 

40.4-45.2

 

40.4-45.2

 

40.4-45.2

35.4-39.4

 

35.4-39.4

Maximum Rpm

1595

 

1595

 

1595

 

1595

1298

 

1298

Air Foil Fan (cont)

 

 

 

 

 

 

 

 

 

 

Motor Hp

50

 

 

 

60

 

 

 

60

Motor Frame Size

326T

 

 

364T

 

 

364T

Efficiency at Full Load (%)

 

 

 

 

 

 

 

 

 

 

Standard Efficiency

93.0

 

 

 

94.5

 

 

94.5

High Efficiency

94.5

 

 

 

95.4

 

 

95.4

Fan Pulley Pitch Diameter (in.)

9.1

 

 

 

8.1

 

 

11.0

Motor Pulley Pitch Diameter (in.)

7.5

 

 

 

7.1

 

 

7.1

Fan Rpm

1442

 

 

 

1534

 

 

1119

Belts

Quantity...Model No.

3...5VX1120

 

4...5VX1080

4...5VX1030

Center Distance Range (in.)

40.4-45.2

 

 

39.4-44.9

34.4-39.1

Maximum Rpm

1595

 

 

 

1595

 

 

1298

CONDENSER FANS

 

 

 

 

 

 

 

 

 

 

Quantity...Diameter (in.)

6...30

 

 

6...30

 

 

6...30

Nominal Cfm

52,000

 

 

52,000

 

52,000

Motor Hp...Rpm

1...1140

 

 

1...1140

 

1...1140

SUPPLY FAN

Forward Curve

 

Airfoil

 

Forward Curve

 

Airfoil

Forward Curve

 

Airfoil

Nominal Cfm

32,000

 

32,000

 

36,000

 

36,000

42,000

 

42,000

Size (in.)

 

30.0

 

33.0

 

30.0

 

33.0

36.0

 

40.25

Maximum Allowable Rpm

835

 

1595

 

835

 

1595

715

 

1298

Shaft Diameter at Pulley (in.)

2.69

 

2.44

 

2.69

 

2.44

2.69

 

2.44

FURNACE SECTION (48MP Units Only)

 

 

 

 

 

 

 

 

 

 

Rollout Switch Cutout Temp (F)

 

 

 

190

 

 

 

190

Number of Burners

 

 

 

7

 

 

 

7

 

Burner Ori®ce Diameter (in. ...drill size)

 

 

0.136...29

 

 

0.136...29

Gas Input (Btuh)

 

 

342,000

 

 

342,000

Manifold Pressure (in. wg) Ð Natural Gas

 

 

 

3.3

 

 

 

3.3

Gas Valve Input Pressure Range

 

 

 

 

 

 

 

 

 

 

in. wg

 

 

 

5.5-13.5

 

 

5.5-13.5

psig

 

 

 

0.235-0.487

 

 

0.235-0.487

LOW HEAT (48MPD)/HIGH HEAT (48MPE)

 

 

 

 

 

 

 

 

 

 

Number of Sections

 

 

 

2/3

 

 

 

2/3

Gas Input (Btuh) Stage 1

 

 

515,000/770,000

 

 

515,000/770,000

 

Stage 2

 

 

685,000/1,025,000

 

 

685,000/1,025,000

Efficiency (Steady State %)

 

 

 

81/81

 

 

 

81/81

Temperature Rise Range (F)

 

 

10-40/20-50

 

 

5-35/10-40

Minimum Heating Air¯ow (cfm)

 

 

12,850/15,400

 

 

14,700/19,250

Field Gas Connection Size (in.)

 

 

 

2

 

 

 

2

 

FILTERS

 

 

 

 

 

 

 

 

 

 

 

Medium Efficiency (30%)

 

 

 

 

 

 

 

 

 

 

Pleated (Standard)

15...24 x 24 x 2,

 

15...24 x 24 x 2,

20...24 x 24 x 2,

Quantity...Size (in.)

5...24 x 12 x 2

 

5...24 x 12 x 2

5...24 x 12 x 2

High Efficiency (90%) Cartridge Filters

 

 

 

 

 

 

 

 

 

 

with Pre®lters (Optional)

15...24 x 24 x 4,

 

15...24 x 24 x 4,

20...24 x 24 x 4,

Quantity...Size (in.)

5...24 x 12 x 4

 

5...24 x 12 x 4

5...24 x 12 x 4

Outdoor Air Inlet Screens

 

 

 

 

Cleanable Aluminum

 

 

 

Quantity...Size (in.)

16...20 x 25 x 1

 

16...20 x 25 x 1

24...20 x 25 x 1

LEGEND

TXV Ð Thermostatic Expansion Valve

4

Table1 Ð Physical Data (cont)

 

BASE UNIT 48/50MP

90P

 

 

 

10R

 

 

 

 

 

 

 

 

NOMINAL CAPACITY (tons)

115

 

 

 

120

OPERATING WEIGHT (lb)

 

 

 

 

 

 

 

Base Unit (48MP/50MP)

24,660/24,750

 

 

25,110/25,100

Copper Condenser Coils

950

 

 

 

950

Exhaust Fan

2400

 

 

 

2400

COMPRESSORS

 

 

Semi-Hermetic

 

 

Number of Refrigerant Circuits

2

 

 

 

 

2

 

Circuit (No. of Cylinders)

A1 (6), A2 (6)

 

B1 (6), B2 (6)

 

A1 (6), A2 (6)

 

B1 (6), B2 (6)

Model 06E

−265, −275

 

−265, −275

 

−265, −299

 

−265, −275

Oil Charge (pints)

19, 19

 

19, 19

 

19, 19

 

19, 19

Capacity Steps (%)

15,23,30,38,45,58,65,73,85,92,100

 

14,21,28,35,42,61,68,75,86,93,100

REFRIGERANT

 

 

 

R-22

 

 

Operating Charge (lb), Sys 1/Sys 2 (Standard Coil)

85/85

 

 

 

86/87

Operating Charge (lb), Sys 1/Sys 2 (Alternate Coil)

93/93

 

 

 

93/96

 

 

 

 

 

 

 

CONDENSER COILS

 

 

Grooved Tube (3¤8-in. OD)

 

 

Quantity

 

4

 

 

 

 

4

 

Rows...Fins/in.

3...17

 

 

 

3...17

Total Face Area (sq ft)

168.0

 

 

 

168.0

EVAPORATOR COILS

 

 

Smooth Tube (5¤8-in. OD)

 

 

Quantity

 

2

 

 

 

 

2

 

Rows...Fins/in.

 

 

 

 

 

 

 

Standard

3...14

 

 

 

3...14

Alternate

4...14

 

 

 

4...14

Total Face Area (sq ft)

90.3

 

 

 

101.4

Refrigerant Feed

 

 

 

 

 

 

 

Device...No. per Circuit

TXV...2

 

 

 

TXV...2

EVAPORATOR FANS

 

 

 

 

 

 

 

Forward Curved Fan

 

 

 

 

 

 

 

Motor Hp

50

 

60

 

 

60

Motor Frame Size

326T

 

364T

 

 

364T

Efficiency at Full Load (%)

 

 

 

 

 

 

 

Standard Efficiency

93.0

 

94.5

 

 

94.5

High Efficiency

94.5

 

95.4

 

 

95.4

Fan Pulley Pitch Diameter (in.)

18.8

 

18.8

 

 

21.3

Motor Pulley Pitch Diameter (in.)

5.9

 

6.7

 

 

6.7

Fan Rpm

555

 

630

 

 

556

Belts

Quantity...Model No.

4...5VX1120

 

4...5VX1120

 

4...5VX1150

Center Distance Range (in.)

35.4/40.2

 

35.4/40.2

 

 

34.2/40.2

Maximum Rpm

715

 

715

 

 

715

Air Foil Fan

 

 

 

 

 

 

 

Motor Hp

50

 

60

 

50

 

60

Motor Frame Size

326T

 

364T

 

326T

 

364T

Efficiency at Full Load (%)

 

 

 

 

 

 

 

Standard Efficiency

93.0

 

94.5

 

93.0

 

94.5

High Efficiency

94.5

 

95.4

 

94.5

 

95.4

Fan Pulley Pitch Diameter (in.)

12.5

 

13.7

 

13.7

 

13.7

Motor Pulley Pitch Diameter (in.)

7.5

 

8.7

 

8.1

 

8.7

Fan Rpm

1050

 

1111

 

1035

 

1111

Belts

Quantity...Model No.

3...5VX1030

 

3...5VX1060

 

3...5VX1060

 

3...5VX1060

Center Distance Range (in.)

35.4/39.4

 

34.4/39.1

 

35.4/39.4

 

34.4/39.1

Maximum Rpm

1298

 

1298

 

1298

 

1298

Air Foil Fan (cont)

 

 

 

 

 

 

 

Motor Hp

75

 

 

 

75

Motor Frame Size

365T

 

 

 

365T

Efficiency at Full Load (%)

 

 

 

 

 

 

 

Standard Efficiency

95.4

 

 

 

95.4

High Efficiency

Ð

 

 

 

 

Ð

 

Fan Pulley Pitch Diameter (in.)

16.1

 

 

 

16.1

Motor Pulley Pitch Diameter (in.)

11.1

 

 

 

11.1

Fan Rpm

1207

 

 

 

1207

Belts

Quantity...Model No.

3...5VX1120

 

 

3...5VX1120

Center Distance Range (in.)

34.4/39.1

 

 

 

34.4/39.1

Maximum Rpm

1298

 

 

 

1298

CONDENSER FANS

 

 

 

 

 

 

 

Quantity...Diameter (in.)

8...30

 

 

 

8...30

Nominal Cfm

69,500

 

 

 

69,500

Motor Hp...Rpm

1...1140

 

 

 

1...1140

SUPPLY FAN

Forward Curve

 

Airfoil

 

Forward Curve

 

Airfoil

Nominal Cfm

46,000

 

46,000

 

52,000

 

52,000

Size (in.)

 

36.0

 

40.25

 

36.0

 

40.25

Maximum Allowable Rpm

715

 

1298

 

715

 

1298

Shaft Diameter at Pulley (in.)

2.69

 

2.44

 

2.69

 

2.44

FURNACE SECTION (48MP Units Only)

 

 

 

 

 

 

 

Rollout Switch Cutout Temp (F)

 

 

 

190

 

 

Number of Burners

 

 

 

7

 

 

Burner Ori®ce Diameter (in. ...drill size)

 

 

 

0.136...29

 

 

Gas Input (Btuh)

 

 

 

342,000

 

 

Manifold Pressure (in. wg) Ð Natural Gas

 

 

 

3.3

 

 

Gas Valve Input Pressure Range

 

 

 

 

 

 

 

in. wg

 

 

 

 

5.5-13.5

 

 

psig

 

 

 

 

0.235-0.487

 

 

LOW HEAT (48MPD)/HIGH HEAT (48MPE)

 

 

 

 

 

 

 

Number of Sections

 

 

 

2/3

 

 

Gas Input (Btuh) Stage 1

 

 

515,000/770,000

 

 

 

Stage 2

 

 

685,000/1,025,000

 

 

Efficiency (Steady State %)

 

 

 

81/81

 

 

Temperature Rise Range (F)

 

 

 

5-35/10-40

 

 

Minimum Heating Air¯ow (cfm)

 

 

14,700/19,250

 

 

Field Gas Connection Size (in.)

 

 

 

2

 

 

FILTERS

 

 

 

 

 

 

 

 

Medium Efficiency (30%)

20...24 x 24 x 2,

 

20...24 x 24 x 2,

Pleated (Standard) Quantity...Size (in.)

5...24 x 12 x 2

 

5...24 x 12 x 2

High Efficiency (90%)

 

 

 

 

 

 

 

Cartridge Filters with Pre®lters (Optional)

20...24 x 24 x 4,

 

20...24 x 24 x 4,

Quantity...Size (in.)

5...24 x 12 x 4

 

5...24 x 12 x 4

Outdoor Air Inlet Screens

 

 

Cleanable

Aluminum

 

 

Quantity...Size (in.)

24...20 x 25 x 1

 

24...20 x 25 x 1

LEGEND

TXV Ð Thermostatic Expansion Valve

5

Table 2 Ð Optional Power Exhaust Speci®cations

 

UNIT 48/50MP

 

 

62L

 

 

70M

 

 

82N

Type

 

100% Mod

 

100% Non Mod

100% Mod

 

100% Non Mod

100% Mod

 

100% Non Mod

Motor Hp

30

 

30

40

 

40

40

 

40

Motor Frame Size

286T

 

286T

324T

 

324T

324T

 

324T

Efficiency at Full Load (%)

 

 

 

 

 

 

 

 

 

Standard Efficiency

92.4

 

92.4

93.0

 

93.0

93.0

 

93.0

High Efficiency

93.6

 

93.6

94.5

 

94.5

94.5

 

94.5

Fan Pulley Pitch Diameter (in.)

18.4

 

18.4

18.4

 

18.4

25.0

 

20.0

Motor Pulley Pitch Diameter (in.)

5.6

 

6.0

6.2

 

6.6

6.8

 

5.8

Fan Rpm

552

 

590

608

 

646

491

 

526

Belts

Quantity...Model No.

4...BX80

 

4...BX81

5...BX80

 

5...BX80

5...B90

 

5...BX90

Center Distance Range (in.)

19.9-23.3

 

19.9-23.3

18.6-22.8

 

18.6-22.8

21.8-25.9

 

21.8-25.9

Maximum Allowable Rpm

650

 

650

835

 

835

560

 

560

Type

 

50% Non Mod

50% Non Mod

50% Non Mod

Motor Hp

 

7.5

 

7.5

 

7.5

Motor Frame Size

 

213T

 

213T

 

213T

Efficiency at Full Load (%)

 

 

 

 

 

 

 

 

 

Standard Efficiency

 

88.5

 

88.5

 

88.5

High Efficiency

 

91.7

 

91.7

 

91.7

Fan Pulley Pitch Diameter (in.)

 

15.4

 

16.0

 

18.4

Motor Pulley Pitch Diameter (in.)

 

3.6

 

3.6

 

3.6

Fan Rpm

 

412

 

397

 

346

Belts

Quantity...Model No.

 

2...BX75

 

2...BX77

 

2...BX90

Center Distance Range (in.)

21.3-24.1

21.7-24.2

24.9-27.4

Maximum Allowable Rpm

 

690

 

650

 

600

Table 2 Ð Optional Power Exhaust Speci®cations (cont)

 

UNIT 48/50MP

 

90P

 

10R

Type

 

100% Mod

 

100% Non Mod

100% Mod

 

100% Non Mod

Motor Hp

50

 

50

60

 

60

Motor Frame Size

326T

 

326T

364T

 

364T

Efficiency at Full Load (%)

 

 

 

 

 

 

Standard Efficiency

93.0

 

93.0

94.5

 

94.5

High Efficiency

94.5

 

94.5

95.4

 

95.4

Fan Pulley Pitch Diameter (in.)

28.1

 

28.1

28.1

 

28.1

Motor Pulley Pitch Diameter (in.)

8.1

 

8.1

9.1

 

9.1

Fan Rpm

508

 

508

558

 

558

Belts

Quantity...Model No.

3...5VX1060

 

3...5VX1060

3...5VX1060

 

3...5VX1060

Center Distance Range (in.)

21.8/25.9

 

21.8/25.9

20.9/25.6

 

20.9/25.6

Maximum Allowable Rpm

560

 

560

560

 

560

Type

 

50% Non Mod

50% Non Mod

Motor Hp

 

10

 

15

Motor Frame Size

 

215T

 

254T

Efficiency at Full Load (%)

 

 

 

 

 

 

Standard Efficiency

 

89.5

 

89.5

High Efficiency

 

91.7

 

91.7

Fan Pulley Pitch Diameter (in.)

 

20.0

 

20.0

Motor Pulley Pitch Diameter (in.)

 

4.5

 

4.0

Fan Rpm

 

362

 

371

Belts

Quantity...Model No.

 

2...BX90

 

3...BX90

Center Distance Range (in.)

 

24.9/27.4

 

23.9/26.8

Maximum Allowable Rpm

 

600

 

600

Table 3 Ð Compressor Oil Charge

 

 

 

 

 

OIL CHARGE (pints)

 

UNIT 48/50MP

 

Compressor

 

 

 

Compressor

 

 

Circuit A

Total Circuit A

 

Circuit B

Total Circuit B

 

 

 

 

A1

 

A2

 

 

B1

 

B2

 

62L

19

 

Ð

19

 

19

 

Ð

19

70M

19

 

14

33

 

19

 

Ð

19

82N

19

 

14

33

 

19

 

19

38

90P

19

 

19

38

 

19

 

19

38

10R

19

 

19

38

 

19

 

19

38

 

 

 

 

 

 

 

 

 

 

Table 4 Ð Variable Frequency Drive (VFD) Physical Data

FAN MOTOR

 

DIMENSIONS (in.)

 

WEIGHT (lb)

HP

Height

Width

Length

 

30

24.02

12.99

11.22

68

40

24.02

12.99

11.22

68

50

30.91

12.99

11.22

106

60

30.91

12.99

11.22

106

75

33.46

12.99

11.22

106

 

 

 

 

 

6

NOTES:

1.Roof curb is shipped disassembled.

2.Roof curb: 14 gage [VA03-56] steel.

3. Dimensions in [ ] are in millimeters.

4.To prevent standing water in the drain pan of the indoor section, roof curb and unit must be level

NOTES:

1.To prevent the hazard of stagnant water build-up in the drain pan on the indoor section, unit cannot exceed leveling tolerances shown.

2.If a Carrier roof curb is not used, curb cross rails must be postioned to clear unit base rail locations shown.

Fig. 1 Ð Roof Curb Dimensions, 48/50MP62L and 70M

7

NOTES:

1.Roof curb is shipped disassembled.

2.Roof curb: 14 gage [VA03-56] steel.

3. Dimensions in [ ] are in millimeters.

4.To prevent standing water in the drain pan of the indoor section, roof curb and unit must be level

NOTES:

1.To prevent the hazard of stagnant water build-up in the drain pan on the indoor section, unit cannot exceed leveling tolerances shown.

2.If a Carrier roof curb is not used, curb cross rails must be postioned to clear unit base rail locations shown.

Fig. 2 Ð Roof Curb Dimensions, 48/50MP82N-10R

8

UNIT SIZE

WEIGHT

 

A

 

B

 

 

C

 

D

 

E

 

 

 

F

48MPD,E

lb

kg

mm

ft-in.

mm

 

ft-in.

mm

ft-in.

mm

ft-in.

mm

 

ft-in.

mm

 

ft-in.

62L

16,810

7624

3505

11- 6

957

 

3-111¤16

5909

19-45¤8

1203

3-113¤8

13

011

 

42-81¤4

14

256

 

46-91¤4

70M

18,060

8190

3647

11-119¤16

1165

 

3-97¤8

6166

20-23¤4

1264

4- 13¤4

13

297

 

43-71¤2

14

542

 

47-81¤2

NOTES:

1. Dimensions in [ ] are in millimeters.

2.Center of gravity includes exhaust fan and high heat options. Unit weight does not include exhaust fan or high heat options.

3.High heat add: 260 lb [118 kg]

Exhaust fan add: 1675 lb [761 kg] on 62L

1775 lb [807 kg] on 70M

4. Unit clearances:

Top Ð Do not restrict condenser fans, control box end Ð 6 8-09. Sides Ð 6 8-09 (except on return fan equipped units Ð 10 8-09). Economizer end Ð 6 8-09 (except power exhaust units Ð 10 8-09).

For smaller service and operational clearances, contact Carrier Application Engineering Department.

5.Downshot ducts designed to be attached to accessory roof curb. If unit is mounted on dunnage, it is recommended the ducts be supported by cross braces as done on the accessory roof curb.

Fig. 3 Ð Base Unit Dimensions, 48MP62L, 70M

9

Carrier MPE62L-10R, 50MP62L-10R, 48MPD User Manual

UNIT SIZE

WEIGHT

 

A

B

 

 

C

 

D

 

 

E

 

 

F

48MPD,E

lb

kg

mm

ft-in.

mm

 

ft-in.

mm

ft-in.

mm

 

ft-in.

mm

 

ft-in.

mm

 

ft-in.

82N

22,660

10 295

3646

11-119¤16

Ð

 

Ð

6734

22- 1 1¤8

1753

 

5-9

13

957

 

45-91¤2

15

202

 

49-101¤2

90P

24,660

11 203

1938

6- 45¤16

2572

 

8-51¤4

7283

23-103¤4

1765

 

5-91¤2

14

821

 

48-71¤2

16

066

 

52- 81¤2

10R

25,110

11 408

1938

6- 45¤16

2572

 

8-51¤4

7268

23-101¤8

1759

 

5-91¤4

14

821

 

48-71¤2

16

066

 

52- 81¤2

NOTES:

1. Dimensions in [ ] are in millimeters.

2.Center of gravity includes exhaust fan and high heat options. Unit weight does not include exhaust fan or high heat options.

3.High heat add: 260 lb [118 kg]

Exhaust fan add: 2275 lb [1034 kg] on 82N

2400 lb [1090 kg] on 90P and 10R

4. Unit clearances:

Top Ð Do not restrict condenser fans, control box end Ð 6 8-09. Sides Ð 6 8-09 (except on return fan equipped units Ð 10 8-09). Economizer end Ð 6 8-09 (except power exhaust units Ð 10 8-09).

For smaller service and operational clearances, contact Carrier Application Engineering Department.

5.Downshot ducts designed to be attached to accessory roof curb. If unit is mounted on dunnage, it is recommended the ducts be supported by cross braces as done on the accessory roof curb.

Fig. 4 Ð Base Unit Dimensions, 48MP82N-10R

10

UNIT

WEIGHT

 

A

 

B

 

C1

 

C2

 

D

E

 

 

F

SIZE

(See Note 3)

 

 

(See Note 2)

(See Note 2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50MP

lb

kg

mm

ft-in.

mm

ft-in.

mm

ft-in.

mm

ft-in.

mm

ft-in.

mm

 

ft-in.

mm

ft-in.

62L

16,550

7511

3505

11869

957

38-111¤169

5880

198-31¤29

6325

208-99

1203

38-113¤89

13 011

 

428-81¤49

14 256

468-91¤49

70M

17,800

8078

3647

118-119¤169

1165

38-97¤8

6166

208-23¤4

6649

218-93¤49

1264

48- 13¤49

13 297

 

438-71¤29

14 542

478-81¤29

NOTES:

1. Dimensions in [ ] are in millimeters.

2. Center of gravity. Use appropriate column for units with or without exhaust fan option.

3.Unit weight does not include exhaust fan option. Exhaust fan add: 1675 lb [761 kg] on 62L

1775 lb [807 kg] on 70M

4.Unit clearances:

Top Ð Do not restrict condenser fans.

Sides Ð 6 8-09

Economizer End Ð 6 8-09 (Except power exhaust units 108-09). Control Box End Ð 6 8-09

For smaller service and operational clearances, contact Carrier Application Engineering department.

5.Downshot ducts designed to be attached to accessory roof curb. If unit is mounted on dunnage, it is recommended the ducts be supported by cross braces as done on the accessory roof curb.

6.All lifting lugs must be used when rigging unit.

Fig. 5 Ð Base Unit Dimensions, 50MP62L and 70M

11

UNIT

WEIGHT

 

A

 

B

 

 

C1

 

C2

 

D

 

E

 

F

SIZE

(See Note 3)

 

 

 

(See Note 2)

(See Note 2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50MP

lb

kg

mm

ft-in.

mm

 

ft-in.

mm

ft-in.

mm

ft-in.

mm

ft-in.

mm

ft-in.

mm

ft-in.

82N

22,400

10 295

3646

118-119¤169

Ð

Ð

 

6702

21 8-117¤89

7180

238-611¤169

1753

58-99

13 957

458-91¤29

15 202

498-101¤29

90P

24,750

11 375

1938

68- 45¤169

2572

 

88-51¤4

7383

238-103¤4

7787

258-69¤169

1765

58-91¤29

14 821

488-71¤29

16 066

528-81¤29

10R

25,100

11 536

1938

68- 45¤169

2572

 

88-51¤4

7383

238-101¤8

7793

258-613¤169

1759

58-91¤49

14 821

488-71¤29

16 066

528-81¤29

NOTES:

1.

Dimensions in [ ] are in millimeters.

2.

Center of gravity. Use appropriate column for units with or without ex-

 

haust fan option.

3.Unit weight does not include exhaust fan option. Exhaust fan add: 2275 lb [1034 kg] on 82N

4.Unit clearances: 2300 lb [1090 kg] on 90R and 10R Top Ð Do not restrict condenser fans.

Sides Ð 6 8-09

Economizer End Ð 6 8-09 (Except power exhaust units 108-09). Control Box End Ð 6 8-09

For smaller service and operational clearances, contact Carrier Application Engineering department.

5.Downshot ducts designed to be attached to accessory roof curb. If unit is mounted on dunnage, it is recommended the ducts be supported by cross braces as done on the accessory roof curb.

6.All lifting lugs must be used when rigging unit.

Fig. 6 Ð Base Unit Dimensions, 50MP82N-10R

12

NOTICE TO RIGGERS

UNIT

 

 

WEIGHT

 

 

 

A

B

 

C

 

D

 

E

 

Unit 48MP

Unit 50MP

Exhaust Fan

 

 

 

 

 

SIZE

 

 

 

 

 

 

 

 

 

 

 

 

lb

kg

lb

kg

lb

kg

in.

 

mm

in.

mm

in.

mm

in.

mm

in.

mm

62L

16,810

7 624

16,550

7 507

1675

760

71.25

 

1810

129.00

3277

112.44

2856

138.00

3505

N/A

N/A

70M

18,060

8 190

17,800

8 074

1775

805

71.25

 

1810

129.00

3277

112.44

2856

143.56

3646

N/A

N/A

82N

22,660

10 295

22,400

10 161

2275

1032

71.25

 

1810

139.56

3545

127.87

3248

143.56

3646

N/A

N/A

90P

24,660

11 203

24,750

11 227

2400

1089

71.25

 

1810

139.56

3545

127.87

3248

177.56

4510

101.25

2572

10R

25,110

11 408

25,100

11 385

2400

1089

71.25

 

1810

139.56

3545

127.87

3248

177.56

4510

101.25

2572

NOTE: All lifting lugs must be used when rigging with eight or ten cables and spread with four or ®ve 95 in. (2413 mm) and two ``B + C + D''long suitable spreader bars. Unit weight does not include exhaust fan option.

1.All panels must be in place when rigging.

2.Unit is not designed for handling by fork truck.

Fig. 7 Ð Rigging Label

2

3

 

B

1

4

 

 

A

UNIT

CORNER WEIGHT (lb)

DIMENSIONS (ft-in.)

48MP

1

2

3

4

A

B

62L

5095

5000

4339

4051

19- 45¤8

3-113¤8

70M

5337

5338

5290

3969

20- 23¤4

4- 13¤4

82N

6614

6326

6444

5651

22- 11¤8

5- 9

90P

7156

6789

7330

6226

23-103¤4

5- 91¤2

10R

7174

6897

7345

6254

23-101¤8

5- 91¤4

UNIT

CORNER WEIGHT (lb)

DIMENSIONS (ft-in.)

50MP

1

2

3

4

A

B

62L

4237

3967

5038

4933

19- 31¤2

3-113¤8

70M

5258

3955

5185

5167

20- 23¤4

4- 13¤4

82N

6351

5571

6574

6279

21-117¤8

5- 9

90P

7211

6132

7045

6761

23-103¤4

5- 91¤2

10R

7288

6196

7195

6820

23-101¤8

5- 91¤4

Fig. 8 Ð Unit Center of Gravity and Corner Weights

13

PITCH DRAIN LINE

 

UNIT

SEALANT

BASE

TO OFFSET LINE

 

RAIL

FRICTION

 

 

SLAB

2" MIN.

7" MIN.

SLAB MOUNT DRAIN

Fig. 9 Ð Condensate Drain Piping Details

Make Electrical Connections

POWER SUPPLY Ð Electrical characteristics of available power supply must agree with unit nameplate rating. Supply voltage must be within the limits shown in Table 5.

Field Wire Routing Ð Field wiring is brought into the unit through the bottom of the control box.

A 35¤8-in. hole for ®eld power wiring and a 7¤8-in. hole for 24-v control wiring are provided in the bottom of the control box. Field-supplied couplings must be used when routing wiring into the control box.

Field Electrical Connections

IMPORTANT: The 48/50MP units generate, use, and can radiate radio frequency energy. If units are not installed and used in accordance with these instructions, they may cause radio interference. They have been tested and found to comply with limits of a Class A computing device as de®ned by FCC (Federal Communications Commission) regulations, Subpart J of Part 15, which are designed to provide reasonable protection against such interference when operated in a commercial environment.

POWER WIRING Ð Units are factory wired for 460-v as shown on the unit nameplate. The main terminal block is suitable for use with aluminum or copper wires. Maximum wire size is 500 MCM.

Branch circuit for power supply to unit must be protected against ground fault or short circuit. Provide an overcurrent protection device in the branch circuit. The MOCP (Maximum Overcurrent Protection) value for this device is shown on unit informative data plate.

When installing units, provide and install a unit safety disconnect per NEC of adequate size. Refer to Electrical Data tables for disconnect sizing. Disconnect may incorporate branch circuit fusing (if local or national codes permit) but combination disconnect fuse is not required. Disconnect must be able to be locked OFF.

HOOD

TOP

FILTER

RACK

HOLD

DOWN

BARS

HOOD

SIDE

Fig. 10 Ð Outdoor Air Hoods Shipping Position

BLOCK-OFF PLATE

Fig. 11 Ð Outdoor Air Hoods Installed

14

Disconnect must be located within sight of the unit and readily accessible from the unit in compliance with NEC Article 440-14.

All ®eld wiring must comply with NEC and all local codes. Size wire based on MCA (Minimum Circuit Amps) value shown on the unit informative plate. See Fig. 12 for power wiring connections to the unit power terminal block and equipment ground.

Operating voltage to the compressor must be within the voltage range indicated on the unit nameplate. Voltages between phases must be balanced within 2%, and the current must be balanced within 10%. See Table 5 for unit electrical data.

Use the following formula to determine the percent voltage imbalance.

% Voltage Imbalance

max voltage deviation from average voltage

= 100 x

average voltage

EXAMPLE: Supply voltage is 460-3-60.

AB = 452 v BC = 464 v AC = 455 v

452 + 464 + 455

Average Voltage =

3

1371

=

3 = 457

Determine maximum deviation from average voltage: (AB) 457 − 452 = 5 v

(BC) 464 − 457 = 7 v (AC) 457 − 455 = 2 v

Maximum deviation is 7 v.

Determine percent voltage imbalance:

7

% Voltage Imbalance = 100 x

457

= 1.53%

This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.

IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact local utility immediately.

Unit failure as a result of operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electrical components.

 

LEGEND

EQUIP

Ð Equipment

GND

Ð Ground

NEC

Ð National Electrical Code

TB

Ð Terminal Block

Fig. 12 Ð Field Power Wiring Connections

15

Table 5 Ð Electrical Data

UNIT

 

VOLTAGE

 

COMP

 

COMP

 

COMP

COMP

CONDENSER

EVAPORATOR

POWER

 

 

 

VOLTAGE

 

 

 

 

 

FAN

 

EXHAUST

 

 

 

48MP/

RANGE

 

NO. A1

 

NO. A2

 

NO. B1

NO. B2

 

 

 

FAN MOTOR

 

MCA

MOCP

3 Ph, 60 Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MOTORS

 

 

FAN MOTOR

 

50MP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Min

Max

 

RLA

LRA

 

RLA

LRA

 

RLA

LRA

RLA

 

LRA

Qty

 

FLA

Hp

FLA

Hp

FLA

Hp

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ð

Ð

 

207.0

250

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40

30

11

7.5

 

218.0

250

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40

30

 

247.0

300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ð

Ð

 

219.0

250

62L

460

414

508

 

65.4

345

 

Ð

Ð

 

65.4

345

Ð

Ð

6

3.3 1

 

52

40

11

7.5

 

230.0

250

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40

30

 

259.0

300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ð

Ð

 

232.0

250

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

65

50

11

7.5

 

243.0

300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40

30

 

272.0

300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ð

Ð

 

235.0

300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

52

40

11

7.5

 

246.0

300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

52

40

 

287.0

350

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ð

Ð

 

248.0

300

70M

460

414

508

 

46.8

253

 

34.6

173

 

65.4

345

Ð

 

Ð

6

3.3

1

65

50

11

7.5

 

259.0

300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

52

40

 

300.0

350

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ð

Ð

 

262.9

300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

77

60

11

7.5

 

273.9

350

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

52

40

 

314.9

350

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ð

Ð

 

250.2

300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

52

40

11

7.5

 

261.2

300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

52

40

 

302.2

350

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ð

Ð

 

266.5

300

82N

460

414

508

 

43.6

223

 

34.6

173

 

43.6

223

43.6

 

223

6

3.3

1

65

50

11

7.5

 

277.5

300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

52

40

 

318.5

350

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ð

Ð

 

281.5

350

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

77

60

11

7.5

 

292.5

350

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

52

40

 

333.5

400

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ð

Ð

 

288.5

350

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

65

50

14

10

 

302.5

350

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

65

50

 

353.5

350

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ð

Ð

 

303.5

350

90P

460

414

508

 

43.6

223

 

46.8

253

 

43.6

223

46.8

 

253

8

3.3

1

77

60

14

10

 

317.5

350

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

65

50

 

368.5

400

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ð

Ð

 

327.5

400

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

96

75

14

10

 

341.5

400

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

65

50

 

392.2

450

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ð

Ð

 

307.2

350

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

65

50

14

15

 

321.1

350

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

77

60

 

387.1

450

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ð

Ð

 

322.1

350

10R

460

414

508

 

43.6

223

 

65.4

345

 

43.6

223

46.8

 

253

8

3.3

1

77

60

14

15

 

336.1

400

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

77

60

 

399.1

450

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ð

Ð

 

345.8

400

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

96

75

14

15

 

359.8

450

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

77

60

 

422.8

500

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEGEND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COMP Ð Compressor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLA

Ð Full Load Amps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hp

Ð Nominal Horsepower

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LRA

Ð Locked Rotor Amps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MCA

Ð Minimum Circuit Amps (for wire sizing)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MOCP Ð Maximum Overcurrent Protection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RLA

Ð Rated Load Amps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

Control Wiring Ð See Fig. 13 for sensor wiring connections to main and auxiliary control boxes. The recommended types of control wiring for 48/50MP unit devices are shown in Table 6.

Table 6 Ð Recommended Sensor and

Device Non-Shielded Cable

MANUFACTURER

PART NO.

Regular Wiring

Plenum Wiring

 

Alpha

1895

Ð

American

A21451

A48301

Belden

8205

884421

Columbia

D6451

Ð

Manhattan

M13402

M64430

Quabik

6130

Ð

 

 

 

SENSORS Ð Sensors should be wired using single twisted pairs of 20 AWG (American Wire Gage) conductor cable rated for the application, except for the T56 accessory sensor which requires 3-conductor cable.

NOTE: Humidity and CO2 sensors must be powered from isolated 24-v power supplies.

HUMIDITY CONTROL AND HOT WATER AND STEAM VALVES Ð These devices require 20 AWG twisted pair conductor cables rated for the application for the 4 to 20 mA signal.

SPACE TEMPERATURE SENSOR (T55) Ð The space temperature sensor (P/N CEC0121448-01) is shipped standard with every unit, and is located in the main control box. Space temperature sensor wires are to be connected to terminals in the unit main control box. The space temperature sensor includes a terminal block (TB1), a jumper between pins E2 and E3, and an RJ11 female connector. The RJ11 connector is used to tap into the Carrier Comfort Network (CCN) at the sensor. See RJ11 Plug Wiring section on page 24 to connect the RJ11 connector to the CCN. A 3-lead cable must run from the RJ11 connector to the unit for communication through the sensor.

Jumper MUST be in place between pins E2 and E3 or inaccurate readings could result.

To connect the space temperature sensor (Fig. 13):

1.Connect 1 wire of the twisted pair to terminal T1 (T55) and connect the other wire to terminal T2 on terminal block 1 (TB1) located on the cover of the space temperature sensor using a 20 AWG twisted pair conductor cable rated for the application.

2.Connect the other ends of the wires to terminals 1 and 2 on TB3 located in the unit main control box.

NOTE: This sensor should be installed for all applications. For VAV (variable air volume) applications, it is used to control heating and cooling during unoccupied periods. For DAV (digital air volume) applications, it is used to maintain control of the space during linkage failures with the TSM (terminal system manager).

NOTE: Either the T55 or T56 sensor must be connected for CV (constant volume) applications to function properly.

SPACE TEMPERATURE SENSOR (T56) (CV Applications Only) Ð The space temperature sensor (P/N CEC0121503-01) wires are to be connected to terminals in the unit main control box. The space temperature sensor includes a terminal block (TB1), a jumper between

pins E2 and E3, and an RJ11 female connector. The RJ11 connector is used to tap into the CCN at the sensor. See RJ11 Plug Wiring section on page 24 to connect the RJ11 connector to the CCN.

Jumper MUST be in place between pins E2 and E3 or inaccurate readings could result.

To connect the space temperature sensor (Fig. 13):

1.Connect one wire of the 3-conductor cable to terminal TH, one wire to terminal COM, and the other wire to terminal SW on terminal block 1 (TB1) located on the cover of the space temperature sensor using a 20 AWG twisted 3-conductor cable rated for the application.

2.Connect the other ends of the wires to terminals 1, 2, and 3 on TB3 located in the unit main control box. The wire from terminal SW MUST be connected to terminal 3.

NOTE: Either the T55 or the T56 sensor must be connected for CV applications to function properly.

SPACE TEMPERATURE AVERAGING Ð Applications that require averaging using multiple space temperature sensors can be satis®ed using either 4 or 9 sensors as shown in Fig. 14.

NOTE: Only Carrier sensors may be used for standard T55 space averaging. Sensors must be used in multiples of 1, 4, and 9 only, with total sensors wiring not to exceed 1000 ft. However, space temperature reset can be accomplished with only one sensor.

NOTE: Do not use T56 sensors for space temperature averaging because the 5 degree offset function will not work in a multiple sensor application.

HEAT INTERLOCK RELAY (VAV Units Only Ð Not Necessary For Digital Air Volume Applications) Ð Variable air volume (VAV) units using optimal start (morning warm-up) and/or occupied heating require that room terminals be controlled to the fully open position when the unit goes into heating mode. The HIR (Heat Interlock Relay) function is provided for this control on DSIO no. 2, channel 60. When the unit goes into heating mode, the HIR is energized to provide switch closure or opening (depending on how the ®eldsupplied power source is set up) to open the room terminals. The ®eld connections for the HIR are: Normally Closed, terminals 8 and 10 on TB3; and Normally Open, terminals 8 and 9 on TB3. See Fig. 15.

OPTION AND ACCESSORY CONTROL WIRING Ð The 48/50MP units may be used in applications with additional control features, options, or accessories. Refer to the Controls and Troubleshooting manual for more information concerning installation and con®guration of options and accessories. Figures 15 to 29 contain wiring information on the following features:

·heat interlock relay (Fig. 15)

·differential enthalpy sensor (Fig. 16)

·remote start (Fig. 17)

·accessory humidity control (Fig. 18)

·®re/smoke control (Fig. 19)

·indoor air quality (Fig. 20)

·outdoor air¯ow control (Fig. 21)

·timed discrete output (Fig. 22)

·humidi®er (Fig. 23)

·hydronic heating (Fig. 24)

·freezestat (Fig. 25)

·remote supply air temperature/space temperature offset (Fig. 26)

·transducer/thermistor (Fig. 27)

·CCN Building Supervisor (Fig. 28)

·variable frequency drive (VFD) (Fig. 29)

17

 

LEGEND

COM Ð Common

SW

Ð Switch

T

Ð Terminal

TB

Ð Terminal Block

TH

Ð Thermostat Heating

 

Accessory

 

Field Wiring

*Constant volume applications only.

Fig. 13 Ð Space Temperature Sensor Wiring

18

TB3

RED

1

BLK

2

TO PROCESSOR

MODULE NO. 1

TB3

RED

1

BLK

2

TO PROCESSOR

MODULE NO. 1

LEGEND

TB Ð Terminal Block

Factory Wiring

Field Wiring

RED

RED

BLK

BLK

RED

RED

BLK

BLK

SENSOR 1

SENSOR 2

SENSOR 3

SENSOR 4

SPACE TEMPERATURE AVERAGING Ð 4 SENSOR APPLICATION

 

RED

 

RED

 

BLK

 

BLK

 

SENSOR 1

SENSOR 2

SENSOR 3

BLK

RED

 

 

 

RED

 

RED

 

BLK

 

BLK

 

SENSOR 4

SENSOR 5

SENSOR 6

BLK

RED

 

 

 

RED

 

RED

 

BLK

 

BLK

 

SENSOR 7

SENSOR 8

SENSOR 9

SPACE TEMPERATURE AVERAGING Ð 9 SENSOR APPLICATION

Fig. 14 Ð Space Temperature Sensor Averaging

19

 

 

DSIO2

 

 

 

 

ACCESSORY

FIELD-SUPPLIED

 

 

 

 

 

 

 

 

24-V ISOLATED

 

 

J5

 

 

 

 

 

 

 

 

 

 

 

 

OUTSIDE AIR

POWER SUPPLY

 

 

 

 

 

 

 

 

 

 

 

TB3

FIELD

TB3

RELATIVE HUMIDITY

 

 

 

 

CONTROL

 

 

 

 

 

 

12

RED

8

WIRING

 

 

 

 

 

 

 

7

2

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J2

J1

24V

 

 

 

 

 

 

 

 

 

 

11

BLU

9

 

12

1

 

2

 

 

 

 

 

 

FIELD-SUPPLIED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24-V ISOLATED

 

 

 

 

 

 

13

 

 

POWER SUPPLY

 

 

10

ORN

10

 

 

2

 

1

 

 

 

 

 

 

 

 

 

CHANNEL

 

 

 

15

J2

J1

 

 

 

60

 

 

 

 

1

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24V

 

 

LEGEND

 

 

 

 

 

 

 

TB

Ð

Terminal Block

 

 

 

 

SPACE/RETURN

 

 

Field Wiring

 

 

 

 

RELATIVE HUMIDITY

 

 

 

 

 

 

 

 

 

Component Terminal

 

 

 

LEGEND

 

 

h Terminal Block Terminal

 

TB

Ð

Terminal Block

 

 

Fig. 15 Ð Heat Interlock Relay

 

 

Field Wiring

 

 

 

 

Component Terminal

 

 

 

 

 

 

 

 

 

 

h

 

Terminal Block Terminal

 

 

 

 

 

 

Fig. 18 Ð Accessory Humidity Control

ENTHALPY

ENTHALPY

 

 

 

 

 

CONTROL

SENSOR

 

 

J7

 

TB2

 

 

 

 

PRESSURIZATION

 

 

 

 

 

19

 

6

 

 

 

 

PURGE

 

 

SR

S

 

 

22

 

 

 

 

EVACUATION

 

 

 

 

 

 

 

 

REMOVE

 

 

 

25

 

 

620 Ω

 

 

 

SHUTDOWN

 

 

RESISTOR

 

 

 

28

 

 

 

 

 

 

 

 

+

+

 

 

PSIO

 

 

 

 

 

 

 

 

 

 

 

 

NO. 2

 

 

 

DIFFERENTIAL

 

 

LEGEND

 

 

 

TB

Ð

Terminal Block

 

 

 

ENTHALPY SENSOR

 

 

 

(RETURN AIR)

 

 

Field Wiring

 

 

Fig. 16 Ð Differential Enthalpy Sensor

 

 

Component Terminal

 

 

h

 

Terminal Block Terminal

 

 

 

 

 

 

 

 

 

 

 

Fig. 19 Ð Fire/Smoke Control

 

 

 

 

 

FIELD-SUPPLIED

 

 

 

 

 

 

24-V ISOLATED

 

 

 

 

 

 

POWER SUPPLY

 

 

 

 

 

 

24V

 

 

 

 

 

 

J7

 

 

LEGEND

 

 

 

16

9 +

1

DSIO Ð Relay Module

 

 

 

 

 

 

Fig. 17 Ð Remote Start

 

 

 

INDOOR AIR

 

 

 

QUALITY ACY

 

 

 

 

17

10 -

5

 

 

 

 

PSIO

 

 

 

 

 

 

NO. 2

 

 

Fig. 20 Ð Indoor Air Quality

20

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