Roberts Gorden CRV-B-6, CRV-B-8, CRV-B-9 Outside AIR Supply, Non-Pressurized, Duct Design Rules

Page 43

 

SECTION 10: OUTSIDE AIR SUPPLY

SECTION 10: OUTSIDE AIR SUPPLY

 

The CRV-Series system is approved for use with an

blower motor has a pressure switch interlock that

outside air system. Halogenated hydrocarbons or

must be used. Wire this switch in series with the

other corrosive chemicals in the air can be drawn into

pump pressure switch. When using an outside air

the equipment and seriously damage the system

blower with a ROBERTS GORDON® System Control

components. Avoid the use of such chemical

or ROBERTS GORDON® ULTRAVAC™ control or

compounds near the air inlet to the heaters.

relay transformer, a separate load relay package is

IMPORTANT: If the building has a slight negative

required. Wire the control for the relay in parallel with

pressure or contaminants are present in the air, an

the pump. The outside air blower must have a

outside combustion air supply to the heaters is

separate 20A, 120V power supply. See Page 38,

strongly recommended.

Figure 21 for outside air blower internal wiring

All joints and seams in the air supply system must be

requirements.

airtight. Attach the filter housing to the burner

10.2 Non-Pressurized

assembly using the wing nut provided.

For a non-pressurized outside air supply, a 4" (O.D.)

10.1 Pressurized

single wall pipe duct may be attached to the burner

See Page 39, Figure 23 for a typical layout of a

and end vent. For length and duct sizing

pressurized air supply system.

requirements, see duct design rules in Figure 19. To

For pressurized outside air supplies, the outside air

prevent condensation, insulate the outside air duct.

FIGURE 19: Duct Sizing

 

Outside Air System Design Requirements:

 

Blower Performance (90707501):

112 Flow Units

One outside air blower is required per each EP-100 or EP-200 series pump and two outside air blowers may be required for each EP-300 series pump. Outside air blowers cannot be shared between two separate CRV- Series systems.

Duct Design Rules:

- System should be designed so that the blower is positioned closest to the highest flow requirements (end vents).

- When a duct is carrying more than 40 flow units, it must be at least 6" (15 cm) diameter.

Pressurized Systems

-6" (15 cm) diameter duct must not exceed 120' (36 m) total per system.

-4" (10 cm) diameter duct must not exceed 120'

(36 m) per radiant branch. Non Pressurized

-6" (15 cm) diameter duct must not exceed 90' (27 m) maximum 100 flow units

-4" (10 cm) diameter duct must not exceed 90' (27 m)

-Elbows are equivalent to 10' (3 m) of duct length.

37

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Contents CoRayVac Page Roberts GORDON, LLC Page Table of Figures Page Manpower Requirements Heater SafetyNational Standards and Applicable Codes Installer ResponsibilityWall Tag Corrosive ChemicalsMaintain clearances to combustibles at all times for safety ONE Side Reflector Standard ReflectorUniversal SHIELD, Position Foot Deco Grille National Standards and Applicable Codes Major Components Coupling Assembly Tube AdapterWith Lock Reflector Side Aluminum or Stainless SteelRoberts Gordon Adjustable Indoor SensorRoberts Gordon Ultravac Variable Frequency DriveContents of CRV-Series Burner Carton Standard Parts ListProtective Grille Design Requirements Heater Assembly OverviewCritical Hanger Placement Heater InstallationCoupling and Tube Assembly Tube Installation± 2 5 cm 2 Elbow Installation2 Reflector Installation Reflector Installation 1 Reflector Installation with HoleScrew Wire Form Reflector Support Strap Burner Combustion Chamber Gasket End Vent Burner InstallationTee Installation Optional Heater AccessoriesReflector Joint 1 Reflector Joint Installation 3 Reflector Joint Detail 2 Reflector Joint Installation2 Side Reflector Installation Reflector Side Extension .3.1 Bracket InstallationBarrier Shield See Page 5, through Page 5, for positions2 Frame Shield Installation Decorative Grille Bracket 3 Joint Piece and Reinforcement 2 Decorative Grille4 End Piece and Reflector End Cap 2 Grille End Cap Installation Protective Grille Installation 1 Silicone Cap Installation3 Grille Installation Kg per foot Corayvac Classic Cast-Iron Adapter EP-200 Condensate Valve Assembly Pump Installation and Venting 9.1 Pump InstallationCanadian Requirements Vertical VentingHorizontal Venting United States RequirementsVertical Venting Configuration Horizontal Venting 4 10 cm Pipe EP-100 Horizontal Venting ConfigurationsEP-200 Series Horizontal Venting Configurations EP-300 Series Horizontal Venting Configurations Duct Design Rules Outside AIR SupplyNon-Pressurized PressurizedOutside Air Blower Internal Wiring Diagram Outside Air Blower Internal WiringAir Supply Blower Support Non-Pressurized Outside Air Supply Gas Connection with Flexible Gas Hose GAS PipingDpst Transformer Relay P/N Control MethodsRoberts Gordon System Control Roberts Gordon Ultravactm120 120 Two Zone Operation without Control Panel 60 Hz 12 Vdc 120 Ground 208 230 Burner Internal Wiring Checking the Electrical System Setting the VacuumStarting the System Checking the Gas LineVacuum Reading To Shut Off Heater Operation and MaintenancePre-Season Maintenance and Annual Inspection Sequence of OperationReflector Maintenance ChecklistInstallation Code and Annual Inspections Vehicles and Other ObjectsBlower Scroll, Wheel TubesGas Line WindowPump With the Power offStart ChartYes Follow burner check Procedure given above Troubleshooting FlowDescription Replacement PartsGAS Inlet Pressure General SpecificationsDimensions Pipe ConnectionEP-303 Pump Specifications Model EP-100Air Supply Blower Specifications EP-203Page ROBERTS-GORDON will not PAY for Warranty is Void ifLimitations on Authority Representatives Page Owner Warranty Registration Card Page Page F r a r e d H e a t i n g
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CRV-B-4, CRV-B-12, CRV-B-2, CRV-B-10, CRV-B-6 specifications

The Roberts Gordon CRV-B-9 is a state-of-the-art infrared radiant heater designed for industrial and commercial heating applications. Renowned for its efficiency and effectiveness, the CRV-B-9 represents a significant advancement in the world of space heating solutions.

One of the main features of the CRV-B-9 is its advanced infrared technology, which allows for precise heating without the necessity of warming the entire space. This targeted heating provides immediate comfort, as it directly warms objects and people rather than the air around them, making it particularly effective in large warehouses, manufacturing facilities, and retail spaces.

The heater boasts an impressive output of up to 80,000 BTUs, making it suitable for a wide range of applications. It utilizes natural gas as fuel, which contributes to its efficiency and cost-effectiveness. With a robust design and durable construction, the CRV-B-9 is built to withstand the rigors of industrial environments while ensuring a long product lifespan.

Another significant characteristic of the CRV-B-9 is its ability to integrate with advanced control systems. This includes compatibility with programmable thermostats and energy management systems, allowing for optimized temperature control and reduced energy consumption. The heater can be adjusted to suit different operational needs, making it a flexible solution for various heating scenarios.

The CRV-B-9 also features a compact design, allowing for easy installation in a variety of spaces. Its low-profile shape and modular capability enable users to arrange multiple units to achieve the desired heating coverage without compromising floor space, a crucial aspect for busy, high-traffic areas.

Safety is a priority with the CRV-B-9, which is equipped with various safety features such as a flame safety cutoff switch and over-temperature protection. These mechanisms ensure safe operation, providing peace of mind for users in demanding environments.

In summary, the Roberts Gordon CRV-B-9 infrared radiant heater stands out for its innovative technology, impressive output, energy efficiency, and safety features. Its flexibility and robust design make it an ideal choice for businesses looking to enhance comfort while minimizing energy costs. Whether in a manufacturing plant or a retail outlet, the CRV-B-9 provides a reliable and effective heating solution.
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