Roberts Gorden NEMA 4 installation manual Specifications

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SECTION 2: SPECIFICATIONS

SECTION 2: SPECIFICATIONS

2.1ROBERTS GORDON® ULTRAVAC™ Controller 2.1.1 Enclosure

Standard Enclosure

Construction: 16 gauge painted steel, hinged door, removable knockouts provided.

Dimensions: 14.7" w x 17.7" h x 3.5" d

NEMA 4 Enclosure (P/N 10080302)

Description: NEMA 4 enclosure is sold separately as an option. ULTRAVAC™ Controller in standard enclosure is field mounted inside the NEMA 4 enclosure.

Construction: 14 gauge painted steel, hinged door with 19" x 16" window.

Dimensions:

24" w x 24" h x 9" d

Protection

 

Rating:

NEMA 4/12

2.1.2 Electrical - Control Board

Power Supply: 24 V 60 Hz (from relay board)

Analog Inputs: Sensor (thermistor), BMS enable (dry contact)

Relay Outputs: 24 Vac

Analog Outputs: 0-10 Vdc

Digital Inputs: Timed, dry contact

Network Ports: RS-485, RS-232

UL Standard: UL 916 / C22.2 No. 205-M1983

2.1.3 Electrical - Relay Board

Power Supply: 120 V (+/- 10%) 1 Ø, 60 Hz

Inputs:

24V AC

Relay Outputs: Single Pole 3 A 120 Vac

UL Standard: UL 916 / C22.2 No. 205-M1983

2.2Temperature Sensors Indoor Sensor

Dimensions:

2.75" w x 4.5" h x 1.15" d

Power:

32 V DC

Features:

LCD temperature display, setpoint

 

adjustment, override button

Wiring:

Shielded Cable, four twisted pairs,

 

24 AWG min.

Outdoor Sensor (P/N 10081501)

Dimensions:

1.4" w x 5.3" h x 2" d

Enclosure:

NEMA 4 gasketed aluminum LB

 

housing, ½" threaded connection

Wiring:

Shielded Cable, one twisted pair,

 

22 AWG min.

NEMA 4 Enclosure for Indoor Sensor (P/N 10081510)

Description:

NEMA 4 Enclosure is sold separately

 

as an option. The indoor sensor is

 

field mounted inside the NEMA 4

 

enclosure. Temperature thermistor

 

and LCD temperature display will not

 

operate properly inside the

 

enclosure. LCD display feature should

 

be disabled and use of the NEMA 4

 

sensor enclosure will require the use

 

of an outdoor sensor (P/N 10081501)

 

in the space to monitor zone

 

temperature.

Dimensions:

6.3" x 3.6" x 1.8"

Construction: Polycarbonate enclosure with clear

 

front cover, 4 screw cover closure. 16

 

gauge galvanized subpanel.

Protection

 

Rating:

NEMA 4/4x/12/13

Flammability

 

Rating:

UL-94-5V

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Contents Owner InstallerPage Roberts-Gordon LLC Page Table of Figures Page Introduction Carton Contents Urvsc Ultravac Satellite Controller Inside View Urvccm Ultravac Central Controller with ModemUrvccr Ultravac Central Controller with RS-485 Converter Manpower Requirements SafetyExample Site Layout Example Site Layout Specifications Control Relay BoardController Enclosure Nema 4 Models Variable Frequency Drive VFD Enclosure Standard ModelsElectrical Variable Frequency Drive Components Factory pre-wiring shown Preparation InstallationControl Wiring Cable Requirements 3.3.1 Line Power Supply5 RS-485 Communication Wire Between Controllers Indoor Sensor CableVariable Frequency Drive Requirements Variable Frequency Drive MountingOutside Air Supply Indoor Sensor PlacementCentral Controller Communication Equalization Wiring Typical External Diagrams120 BMS Enable Optional60 Hz 230 460 Pump60 Hz See Note To Satellite ControllerFor 115 V For 460 Input Input VFD VFD models Supply Input VFD model shown See NoteTCP/IP communication module CommunicationsDedicated Phone Line for Central Controller Modem To Controller #2 RS-485 Converter for Central ControllerSet to on + Central ControllerTCP/IP Communication Module Mounting Ohm resistor included Black RS-45 Jack Module power wireEthernet Cable To LAN Red + RJ-11 JackDirect Connect Controller Switch OrderNumber Values 1=ON, 0=OFF Order 1,2,3,4,5,6,7,8Repeater Repeater WiringVariable Frequency Drive Programming VFD Parameter Settings For Use WithRoberts Gordon Ultravac Altering VFD Parameters Parameter Factory New Number Name DefaultCommissioning the Corayvac System Setting The Corayvac End Burner VacuumEnd Vent Vacuum Approximate reading after adjustingPossible Damper Couplings’ Locations Parameter Factory New Number Name Default Setting Roberts Gordon Ultravac Controller Replacement Parts Replacement PartsDescription Part Number Variable Frequency Drive Components Diagram Variable Frequency Drive Replacement Parts4 24V Power 1 a Fuse Control Board Power LED3 10080122 Eprom Chip Variable Frequency Drive VFDVariable Frequency Drive 25 a or 10 a Fuse Troubleshooting Flow ChartTroubleshooting Flow ChartYes control board 24 V output Yes Troubleshooting Flow ChartTroubleshoot Ends Troubleshooting Flow ChartROBERTS-GORDON will not PAY for Warranty is Void ifLimitations on Authority Representatives

NEMA 4 specifications

The Roberts Gordon NEMA 4 is a leading example of industrial heating technology, specifically designed for demanding environments. Known for its ruggedness and efficiency, it meets the needs of various industries, including manufacturing, warehousing, and food processing. The robust design ensures that it can operate efficiently in harsh conditions, making it a popular choice for facilities where moisture, dust, and other contaminants are common.

One of the standout features of the Roberts Gordon NEMA 4 is its weatherproof and dust-tight enclosure, which adheres to the NEMA 4 classification. This means that the unit can withstand water splashes and rain, making it suitable for outdoor installations or areas where water exposure is likely. The housing is constructed from durable materials that resist corrosion, ensuring longevity and reliability.

In terms of technology, the Roberts Gordon NEMA 4 utilizes advanced infrared heating, which provides direct and efficient heat transfer. This type of heating warms objects and surfaces rather than the surrounding air, allowing for faster heat-up times and enhanced energy efficiency. The units are equipped with high-output infrared emitters, which are designed to maximize radiant heat output while minimizing energy consumption.

The operational characteristics of the Roberts Gordon NEMA 4 are also noteworthy. The units are designed to be user-friendly, featuring intuitive controls that allow for easy temperature adjustments and monitoring. Furthermore, they come equipped with automatic safety features, including over-temperature protection and fail-safe shutdown mechanisms, which enhance operational safety.

Another advantage of the Roberts Gordon NEMA 4 is its versatility. It can be configured for various applications, including ceiling-mounted installations or wall-mounted setups, depending on the specific heating needs of a facility. This adaptability allows for efficient space utilization in warehouses and production areas.

The energy efficiency of the Roberts Gordon NEMA 4 translates into cost savings for businesses. By providing targeted heating where it is needed most, the units help reduce overall energy expenditures. Additionally, the longevity of the unit minimizes the frequency of replacements, contributing to long-term value.

In summary, the Roberts Gordon NEMA 4 is a highly effective industrial heating solution characterized by its robust design, advanced infrared technology, versatility, and energy efficiency. It is well-suited for challenging environments and has been embraced by industries that demand reliable and efficient heating solutions.