Carrier 48AJ, 48EW, 48EY024-068, 48AW, 48AY020-060, 48EK Typical Factory Wiring Optional Field Wiring

Page 62

CC

VIA

VIB

PP

II

FM

F

R

RST

S1

S2

S3

CC

OUT

P24

LEGEND

Typical Factory Wiring

Optional Field Wiring

E-STOP

TWO-WIRE

TRANSDUCER

4-20mA

-+

FIRE SPEED

OVER-RIDE

Fig. 58 — Toshiba TOSVERT VF-S9 VFD Factory-Installed Jumpers

Table 14 — Carrier VFD (Toshiba TOSVERT VF-S9) Program Parameter Values

PARAMETER GROUP

COMMUNICATION NO.

DESCRIPTION

CARRIER DEFAULT SETTINGS

Basic Parameters

 

 

 

CNOd

0003

Command Mode Selection

0*

FNOd

0004

Frequency Setting Mode Selection

1*

Fr

0008

Forward/Reverse Run Selection

1*

ACC

0009

Acceleration Time 1

10.0 sec

dEC1

0010

Deceleration Time 1

10.0 sec

FH

0011

Maximum Frequency

60.0 Hz*

UL

0012

Upper Limit Frequency

60.0 Hz*

LL

0013

Lower Limit Frequency

10.0 Hz*

Pt

0015

V/f Control Mode Selection

1*

tHr

0041

Motor Electronic Thermal Protection Level 1

See Table 15*

Sr1

0018

Preset-Speed Operation Frequency 1

60.0 Hz*

Extended Parameters

 

 

 

F115

0115

Input Terminal Selection 5 (S2)

14*

F116

0116

Input Terminal Selection 6 (S3)

11*

Frequency Parameters

 

 

 

F201

0201

VIA/II Input Point 1 Setting

20%*

F202

0202

VIA/II Input Point 1 Frequency

0.0 Hz

F203

0203

VIA/II Input Point 2 Setting

100%

F204

0204

VIA/II Input Point 2 Frequency

60.0 Hz*

Operation Mode Parameters

 

 

 

F300

0300

PWM Carrier Frequency

4 KHz*

F301

0301

Auto-Restart Control Selection

3*

F302

0302

Regenerative Power Ride-through Control

1*

F303

0303

Retry Selection (Number of Times)

2*

F360

0360

PI Control

1*

F362

0362

Proportional Gain

0.30

F363

0363

Integral Gain

0.20

*These settings differ from the Toshiba defaults and are required for Carrier applications.

Table 15 — Motor Electronic Thermal Protection (tHr) for Toshiba TOSVERT VF-S9 VFD

MOTOR

 

STD EFFICIENCY

 

HIGH EFFICIENCY

HP

kW

IFM Letter*

230V Setting

380V Setting

460V Setting

IFM Letter*

230V Setting

460V Setting

5

3.73

A

83

77

83

L

90

83

7.5

5.60

B

80

88

84

M

80

84

10

7.46

C

85

75

86

N

85

88

15

11.19

D

81

98

79

P

81

79

20

14.92

E

94

87

Q

88

87

*IFM Letter refers to the 15th digit (Motor Option) of the unit model number.

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Image 62
Contents Installation, Start-Up Service Instructions Make Unit Duct Connections Instructions onRoof Curb 48AJ,AK020-030 and 48EJ,EK024-034 Units Roof Curb 48AJ,AK034-050 and 48EJ,EK038-048 Units Roof Curb 48AJ,AK060 and 48EJ,EK054-068 Units Page Base Unit Dimensions 48AJ,AK020-030 Base Unit Dimensions 48AJ,AK035-050 Base Unit Dimensions 48AJ,AK060 Base Unit Dimensions 48AW,AY020-030 Base Unit Dimensions 48AW,AY035-050 Base Unit Dimensions 48W,AY060 Base Unit Dimensions 48EJ,EK024-034 Base Unit Dimensions 48EJ,EK038-048 Base Unit Dimensions 48EJ,EK054-068 Base Unit Dimensions 48EW,EY024-034 Base Unit Dimensions 48EW,EY038-048 Base Unit Dimensions 48EW,EY054-068 AT Each Corner % 48EJ,EW,EK,EYD028 Rigging Weights 48AJ,AK,AW,AY UnitsAT Each Corner % 48EJ,EW,EK,EYD024 48EJ,EW,EK,EYD030Physical Data 48AJ,AK,AW,AY Units Unit 48AJ,AK,AW,AYQuantity Rows...Fins/in Physical Data 48EJ,EK,EW,EY Units Unit 48EJ,EK,EW,EY06D537 06EA250 06EA265 Quantity...Type Ckt 1, Ckt Operating Weights Evaporator Fan Motor Data Air Distribution Thru-the-BottomInstall Flue Hood Combustion Fan Housing LocationStages 48A,E Series Staged Gas ImplementationNumber of Stages Model Number Position Heat Size Htstgtyp Thermistor Designations Supply-Air Thermistor Connections Indoor Air Quality Sensor Configuration Make Electrical Connections SIO CCNCOM DIPMin Max Unbalanced 3-Phase Supply VoltageElectrical Data 48AJ,AK,AW,AY Units RLA LRAQty 30.8/28.0 180.5/177.7 225/225 236.3/230.9 FLA LRA Electrical Data 48EJ,EK,EW,EY UnitsRange Exhaust FAN Motor MCA Mocp EW,EYFLA LRA MCA Mocp EW,EY 54.0 23.6 41.6 RLA FLANEC Field Power Wiring Connections GND GroundGND CCBEquip IFCOFC Indoor-Fan Relay Terminal Block Carrier Comfort Network Indoor-Fan CircuitCCN IFC Pesc CCN Connection Approved Shielded Cables Color Code RecommendationsMake Outdoor-Air Inlet Adjustments Space Temperature Averaging WiringAdding Seal Strip to Top of Hood Sides Adding Seal Strip to Sides of Hood Top Mounting Flange Mounting Angle With Tabs Attached to Filter Track Assembly Differential Enthalpy Control and Sensor Psychrometric Chart for Enthalpy Control Control Control Point Curve APPROX. DEGBarometric Relief Damper and Power Exhaust Mounting Details 120.5 119.5 48EJ,EK,EW,EY058-068 Unit Size80.5 79.5 48EJ,EK,EW,EY024-054 Motormaster III Sensor Location 48EJ,EK,EW,EY054-064 Field Modifications Side Return Air ConversionSTART-UP Pressure Control Signal VFD SET Point In. wgCarrier Default Program Parameter Values Parameter Group Default ValueMotor Standard Efficiency High Efficiency Typical Factory Wiring Optional Field Wiring Building Pressure Signal Level Open DIP Switch ConfigurationSetting ClosedAirflow DIP Switch Factory SettingsFan Performance, 48AJ,AK020-030 Vertical Discharge Units 17,000 Fan Performance, 48AJ,AK035 Vertical Discharge Units16,000 18,00020,000 Fan Performance, 48AJ,AK040,050 Vertical Discharge Units19,000 17,000 18,000 19,000 20,000Fan Performance, 48AJ,AK060 Vertical Discharge Units Fan Performance, 48AW,AY020-030 Horizontal Discharge Units 11,000 12,000 13,000 14,000 15,00013,000 14,000 15,000 16,000 17,000 18,000 Fan Performance, 48AW,AY035 Horizontal Discharge Units17,000 18,000 16,000 17,000 18,000 19,000 20,000 Fan Performance, 48AW,AY040,050 Horizontal Discharge Units19,000 20,000 Fan Performance, 48AW,AY060 Horizontal Discharge Units 26,000 27,000Fan Performance, 48EJ,EK024,034 Vertical Discharge Units Rpm Bhp 000 1066 1096 1125 Fan Performance, 48EJ,EK038,044 Vertical Discharge Units19,000 20,000 Available External Static Pressure in. wg 15,000 16,000 17,000 18,000 19,000 20,000000 1086 11.10 1114 11.61 1141 12.14 Fan Performance, 48EJ,EK048 Vertical Discharge UnitsRpm Bhp Fan Performance, 48EJ,EK054-068 Vertical Discharge Units 10,000 949 13.81 970 14.54 990 15.2610,000 956 12.99 976 13.66 996 14.32 Fan Performance, 48EW,EY054-068 Horizontal Discharge Units26,000 27,000 Available External Static Pressure in. wg 20,000 21,000 22,000 23,000 24,000 25,000 26,000 27,000Airflow LOW Speed Medium Speed High Speed ESPMotor Limitations Air Quality LimitsSequence of Operation User Defined Set Points Software Control Link PointsPage Heat Interlock Relay Wiring COM CommonFunction Location Staged Gas System ComponentsStage Gas System Inputs/Outputs Input DescriptionNavigator Display Navigator Display Menu StructureDEG. F Reset Occupied Morning Temperature Software HeatVersion Enabled ConditionField-Supplied Smoke Detector Wiring Device Pressurization Smoke Purge Evacuation Fire Shutdown Smoke Control ModesCooling Capacity Staging Table, CV Units with 2 Compressors StagesService Typical Gas Heating Section Lubrication Manufacturer LubricantEvaporator-Fan Motor Replacement Evaporator Fan Service and ReplacementBelt Tension Adjustment To adjust belt tension Condenser-Fan AdjustmentGas Valve Adjustment Cooling Charging Chart 48EJ,EK,EW,EY024-034Cooling Charging Chart 48EJ,EK,EW,EY054-068 Protective Devices 06D-537 208/230-3-60 Following fan motors have two Voltage WireIndoor Voltage Wire 20 HP 208/230-3-60Typical 48EK VAV 24-V Control Circuit Typical CV 24-V Control Circuit Typical 48EK VAV 115-V Control Circuit Typical 48EJ CV 115-V Control Circuit 101 102 Troubleshooting Typical Refrigerant Circuiting 48AJ,AK,AW,AY027,030 Typical Refrigerant Circuiting 48AJ,AK,AW,AY035 Typical Refrigerant Circuiting 48EJ,EK,EW,EY038,044 Typical Refrigerant Circuiting 48AJ,AK,AW,AY040,050 Typical Refrigerant Circuiting 48EJ,EK,EW,EY048 Typical Refrigerant Circuiting 48EJ,EK,EW,EY054 Typical Refrigerant Circuiting 48AJ,AK,AW,AY060 Typical Refrigerant Circuiting 48EJ,EK,EW,EY064 Typical Refrigerant Circuiting 48EJ,EK,EW,EY068 IGC Control Heating and Cooling IGC Control Board LED Alarms Control Board LED AlarmsTerminal no Assignment O Channel Designations Base Module CVO Channel Designations Base Module VAV IAQService Training START-UP Checklist General
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48EJ, 48AJ, 48AK, 48EK, 48AY020-060 specifications

The Carrier 48EJ, 48AW, 48EK, 48AJ, and 48EY024-068 are cutting-edge rooftop air conditioning units designed for commercial applications. These models are renowned for their reliability, energy efficiency, and innovative technologies aimed at providing optimal indoor comfort.

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Energy efficiency is paramount in today’s environmental landscape, and Carrier has ensured that these models meet stringent efficiency standards. They incorporate high-efficiency scroll compressors, which significantly reduce energy consumption while delivering powerful performance. The units are also equipped with variable speed fans that adjust airflow based on demand, further optimizing energy use.

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The Carrier 48EJ, 48AW, 48EK, 48AJ, and 48EY models utilize advanced controls and connectivity features, allowing for easy integration into building management systems. This connectivity enables remote monitoring and control, facilitating quick response to changing conditions and simplifying maintenance tasks.

Noise reduction is another key characteristic of these models. They are designed with sound-absorbing insulation and low-noise fan blades to ensure quiet operation, making them suitable for noise-sensitive environments such as schools and hospitals.

These units are also available with various options for air filtration and dehumidification. The use of high-efficiency air filters enhances indoor air quality by trapping dust, pollen, and other airborne particles. Enhanced dehumidification capabilities ensure that spaces remain comfortable even in humid conditions.

In conclusion, the Carrier 48EJ, 48AW, 48EK, 48AJ, and 48EY024-068 rooftop units are engineered to offer exceptional performance, energy efficiency, and durability. With their advanced technologies and user-friendly features, they stand out as reliable solutions for meeting diverse commercial cooling and heating needs, making them a popular choice for many businesses.