Trane CAB-PRC001-EN Electrical Data, Units with Electric Heat, Calculating MCA, Calculating MFS

Page 30

Electrical Data

Minimum Circuit Ampacity

(MCA) and Maximum Fuse

Size (MFS) Calculations

Units with Electric Heat

HACR (heating, air conditioning, and refrigeration) type circuit breakers are required in the branch circuit wiring for all units with electric heat. To compute MCA and MFS, see Tables ED-2 through ED-5 on page 31 for motor FLAs and Tables ED-6 through ED-8 on pages 32-33 for electric heat amps.

Calculating electric heat amps: Single stage, three phase = heat kW * 1000/1.732/volts

Two stage, three phase =

total heat kW * 1000/1.732/volts

Note: Use 240V heat voltage for 230V units.

Calculating MCA:

MCA = 1.25 * (heat amps + sum of all motor FLAs)

Calculating MFS:

MFS = (2.25 * largest motor FLA) + second motor FLA, size 10-12 units only + heat amps

Use the closest larger fuse or HACR circuit breaker above the MCA. Standard fuse sizes are: 15, 20, 25, 30, 35, 40, 45, 50, 60 amps.

Electric heat MBH = heater kW * 3.413

Units Without Electric Heat

To compute MCA and MFS, see Tables ED-2 through ED-5 on page 31 for motor FLAs and Tables ED-6 through ED-8 on pages 32-33 for electric heat amps.

Calculating MCA:

MCA = (1.25) x largest motor FLA + second motor FLA, unit sizes 10-12 only

Calculating MFS:

MFS or HACR1 type circuit breaker = 15 amps for all units without electric heat.

1HACR (heating, air-conditioning and refrigeration) type circuit breakers are required in the branch circuit wiring for all size 10 and 12 units.

Table ED-1. Decimal to Fractional HP (kW) Conversion

Unit Size

Decimal

Fraction

02

 

.03

 

1/30

 

 

.07

 

1/15

03

 

.04

 

1/25

 

 

.05

 

1/20

 

 

.08

 

1/12

04

 

.05

 

1/20

 

 

.06

 

1/16

 

 

.10

 

1/10

 

 

.13

 

1/8

06

 

.07

 

1/15

 

 

.12

 

1/8

 

 

.16

 

1/6

 

 

.24

 

1/4

08

 

.12

 

1/8

 

 

.13

 

1/8

 

 

.24

 

1/4

10

.05

.07

1/20

1/15

 

.06

.12

1/16

1/8

 

.10

.16

1/10

1/6

 

.13

.24

1/8

1/4

12

.05

.12

1/20

1/8

 

.06

.13

1/16

1/8

 

.10

.24

1/10

1/4

 

.13

.24

1/8

1/4

Note:

Values for fractional HPs (kWs) are approximate values and not necessarily the actual HP (kW).

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CAB-PRC001-EN

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Contents Force-Flo Cabinet Heater DecemberIt isn’t just a fan and a coil… Contents Features and Benefits Model Number ProcedureSelection DescriptionDigit 29 Piping Packages Digit 27 Main Control ValveDigit 28 Not Used Digit 30 Control TypeModel a Vertical Concealed General Data ConfigurationsUnit Model B Vertical CabinetModel C Horizontal Concealed Model D Horizontal Cabinet Outlet InletFresh Air Outlet General Data Unit Configurations Model E Horizontal RecessedModel F Vertical Wall Hung Cabinet Model J Model HVertical Recessed Vertical Cabinet Slope TopGeneral Data Model M Inverted Vertical CabinetModel N Inverted Vertical Recessed Table GD-1. Force-Flo Cabinet Heater General Data Table GD-2. Cabinet Heater Air FlowElectric Heat Electric HeatFactory-Installed Piping Packages Piping PackagesGeneral Data Piping Package OptionsSelecting the Correct Modulating Valve Size Data PerformanceHot Water CoilsTable PD-2. Free Discharge Motor, Group Table PD-3. Free Discharge Motor, GroupTable PD-4. Free Discharge Motor, Group Table PD-5. High Static Motor, Group Table PD-6. High Static Motor, GroupTable PD-8. Free Discharge Motor, Group Performance Steam DataCoilsTable PD-7. Free Discharge Motor, Group Table PD-9. Free Discharge Motor, GroupTable PD-10. High Static Motor, Group Table PD-11. High Static Motor, GroupTable PD-12. Steam Properties Control Options Manual Fan Mode SwitchControls Tracer ControlsSequence Controls OperationSequence of Operation General Controls Information Table C-1. Controller Input/Output SummaryTable C-2. Controller Function Summary Zone Sensor Options Zone SensorControls Options ZN.010Controls Features Control FeaturesZN.520 Additional Features End Device Options Two-Position Control ValvesControl Valve Two-Position Fresh Air Damper Actuator Calculating MCA Electrical DataUnits with Electric Heat Calculating MFSRPM Table ED-6. Two-Stage Electric Heat Digit 18 = U Table ED-7. Single-Stage, Max kW Electric Heat Digit 18 = N Table ED-8. Single Stage, Low kW Electric Heat Digit 18 =Dimensions Weights Table DW-1. Operating Weights lbs. kgTable DW-2. Shipping Weights lbs. kg Vertical DimensionsVertical Concealed Unit Dimensions ConcealedVertical Cabinet Unit Dimensions Vertical Cabinet, Model BHorizontal Concealed Unit Dimensions HorizontalHorizontal Concealed, Model C Horizontal Cabinet Unit Dimensions CabinetHorizontal Cabinet, Model D Horizontal Recessed Unit Dimensions RecessedHorizontal Recessed, Model E Vertical Wall Hung Cabinet Unit Dimensions Wall HungVertical Wall Hung Cabinet, Model F Vertical Recessed Unit Dimensions Vertical Recessed, Model HVertical Slope Top Unit Dimensions Slope TopVertical Slope Top, Model J Inverted Vertical Cabinet Unit Dimensions Inverted VerticalInverted Vertical Cabinet, Model M Inverted Vertical Recessed Unit Dimensions Inverted Vertical Recessed, Model NCoil Connections Vertical Units CoilConnections Horizontal Units Inverted UnitsFresh Air Opening Dimensions, Horizontal Units Fresh AirOpening Fresh Air Opening Dimensions, Vertical Units Wall Box Continuous Mortar Ribs TOP and BottomDimensions Projection Panel Projection Panel DimensionsProjection Panel Mechanical Specifications Fresh Air Damper Electric Heat CoilFilters Manual DamperMechanical Specifications Options Aluminum Wall Boxes False BacksRecessing Flanges Projection PanelsPiping Components Ball Valve Manual Circuit SetterAuto Circuit Setter Union Control ValveBalance Fitting StrainerTrane Company Division of American Standard Inc

CAB-PRC001-EN specifications

The Trane CAB-PRC001-EN is an advanced control system designed to enhance the efficiency and performance of commercial heating, ventilation, and air conditioning (HVAC) systems. This building automation system plays a crucial role in optimizing indoor climate conditions while maximizing energy savings.

One of the standout features of the CAB-PRC001-EN is its capability for real-time monitoring and control. The system integrates seamlessly with various HVAC components, allowing users to adjust settings, schedules, and operational modes from a centralized interface. This flexibility ensures that building managers can respond promptly to changes in occupancy or external weather conditions, optimizing comfort while minimizing energy consumption.

The CAB-PRC001-EN employs a robust set of advanced technologies aimed at enhancing system reliability. Utilizing adaptive control algorithms, it intelligently balances heating and cooling loads across different zones, ensuring a consistent temperature environment throughout the building. The system can quickly adapt to variable load conditions, improving energy efficiency and reducing wear on equipment.

Another defining characteristic is its commitment to user-friendly operation. The intuitive interface utilizes a clear graphical display, making navigation straightforward for users of all skill levels. Furthermore, the system can be accessed remotely through web-enabled devices, providing convenience and flexibility for building managers who are often on the move.

Integration capabilities are another hallmark of the CAB-PRC001-EN. It is designed to work with a multitude of third-party devices and protocols, enabling a comprehensive building management solution. This compatibility allows for smooth communication between different systems, including lighting, security, and fire safety systems, fostering an environment of enhanced operational efficiency.

In addition, the CAB-PRC001-EN supports advanced analytics and reporting features. Users can generate detailed reports on energy usage, system performance, and maintenance needs, enabling informed decision-making that can lead to further energy savings and improved system longevity.

In summary, the Trane CAB-PRC001-EN control system is a cutting-edge solution designed for commercial buildings, offering a combination of real-time monitoring, advanced control technologies, user-friendly interfaces, seamless integration capabilities, and powerful analytics. This makes it an ideal choice for any organization looking to enhance their HVAC operations while promoting sustainability and energy efficiency.
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