Greenheck Fan 470654 Installation of Direct Gas Piping, Determine the Supply Gas Requirements

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Installation of Direct Gas Piping

important

All gas piping must be installed in accordance with the latest edition of the National Fuel Gas Code ANSI/Z223.1 and any local codes that may

Determine the Supply Gas Requirements

The unit’s direct gas nameplate states the requirements for the gas being supplied to the unit. The direct gas nameplate is located on the outside of the unit on the control center side.

apply. In Canada, the equipment shall be installed in accordance with the Installation Code for Gas Burning Appliances and Equipment (CGA B149) and Provincial Regulations for the class. Authorities having jurisdiction should be consulted before installations are made.

warning

All components of this or any other gas-fired heating unit must be leak tested prior to placing the unit into operation. A soap and water solution should be used to perform this test. NEVER test for gas leaks with an open flame.

warning

If pressure testing in excess of 1/2 psig (3.5 kPa), the heater and manual shutoff valve must be disconnected from the supply gas line.

warning

If pressure testing at or below 1/2 psig (3.5 kPa), the

MAX BTU/HR

 

 

BTU/H MAX

 

 

 

 

 

 

 

 

 

 

NORMAL MANIFOLD

 

 

PRESSURE

 

“ WC

PRESSION DÕADMISSION

 

 

 

NORMALE

 

 

 

 

 

 

 

 

 

 

MIN GAS

 

 

PRESSURE

 

“ WC

PRESSION DE GAZ

 

 

 

 

 

 

 

 

 

 

 

MIN BURNER

 

 

PRESSURE DROP

 

“ WC

PERTE MIN DE PRESSION

 

 

 

DANS LE BRULEUR

 

 

 

 

 

 

 

 

 

 

TYPE OF GAS

 

 

NATURE DU GAZ

 

 

 

 

 

 

 

 

 

AGAINST

EQUIPPED FOR

 

 

 

 

SCFM

 

CONCU POUR

 

 

CONTE

 

 

 

 

Type of gas

Minimum gas pressure for

maximum output

MIN BTU/HR

BTU/H MIN

MIN GAS PRESSURE

FOR MAX OUTPUT“ WC PRESSION DE GAZ MIN

POUR PUISSANCE MAX

MAX GAS

PRESSURE“ WC PRESSION DE GAZ

MAX

MAX BURNER

PRESSURE DROPPSI PERTE MAX DE PRESSION

DANS LE BRULEUR

DESIGN ∆T

F

∆T NORMALE

 

 

 

 

EXTERNAL STATIC PRESSURE

 

“ WC

 

 

PRESSION STATIQUE EXTERIEURE

 

 

Maximum gas pressure

heater must be isolated from the supply gas line by closing its manual shutoff valve.

important

All piping should be clean and free of any foreign matter. Foreign material entering the gas train can damage the valves, regulators and burner.

important

Do NOT connect the unit to gas types other than what is specified and do NOT connect the unit to gas pressures that are outside of the pressure range shown on the label.

NOTE

When connecting the gas supply, the length of the run must be considered in determining the pipe size to avoid excessive pressure drop. Refer to a Gas Engineer’s Handbook for gas pipe capacities.

Direct Gas Nameplate

Install Additional Regulator if Required

When the supply gas pressure exceeds the maximum gas pressure shown on the direct gas nameplate, an additional regulator (by others) is required to reduce the pressure. The regulator must have a listed leak limiting device or it must be vented to the outdoors.

NOTE

The regulator located inside the unit is used to adjust the unit’s maximum output temperature.

Model VSU Make-Up Air 11

®

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Contents Model VSU General Safety Information Installation, Operation and Maintenance ManualHandling Inspection and Maintenance during StorageReceiving UnpackingTable of Contents Subassemblies Product OverviewOpen View Burner, Blower and Control Center SectionDampers Burner SubassemblyControl Center Installation Service Platform Material List Complete InstallationInstallation of Optional Service Platform Figure C AssemblyInstallation of Electrical Wiring Determine the Supply Gas Requirements Installation of Direct Gas PipingInstall Additional Regulator if Required Installation of Building Pressure Control optional Check blower rotation Check for vibration Supply fan RPM Start-Up ChecklistUnit Model Number Start-Up Blower Check the Supply Gas Pressure Check the Optional High and Low Gas Pressure SwitchesStart-Up Direct Gas Set-Up Optional ComponentsMeasuring the Pressure Drop Maximum firing rate adjustmentSet the Burner Air Pressure Differential Set the Maximum Firing RateSet the Minimum Firing Rate Regulators and Modulating ValvesMaxitrol Series 44 9 Terminals The Maxitrol Set the Unit’s Operating TemperatureFlame Signal Check Pilot Ignition Modulating Variable Volume OperationOperation VAV Units optional SpeedElectrical Sequence Exhaust Fan Contact S1 Closed optional Operation Recirculating Units optionalOperation Electrical Recirculation OperationHeat Contact Closed Flame Safeguard FSG Sequence3a. Heat Contact S4 Closed Pilot Ignition 3b. Heat Contact S4 Closed Direct SparkBlower Does Not Operate TroubleshootingMotor Overamps Too Much Airflow Insufficient AirflowExcessive Noise or Vibration Does not attempt to light No visible spark Heater Does Not Operate Pilot IgnitionAttempts to light, but no pilot visible spark Between 0.625 and 0.675 in. WC? Visible pilotHeater Does Not Operate Direct Spark Attempts to light, but no flame Visible spark Wheels Maintenance RoutineBelt Drives MotorsMaintenance Fall Reference Typical Gas Train Layout with Direct Spark Ignition Control Center Layout Dirty Filter SwitchFan Relay allows power to pass to energize motor starter Heat Relay allows power to pass to heating controlsDateTime AM/PM Maintenance LogWarranty

470654 specifications

Greenheck Fan 470654 is a cutting-edge ventilation solution designed to meet the demanding requirements of commercial and industrial applications. Renowned for its reliability and efficiency, this fan model integrates advanced technologies and engineering to provide optimal air movement and control.

One of the standout features of the Greenheck Fan 470654 is its robust construction. Designed with high-quality materials, the fan promotes longevity and durability, making it suitable for use in tough environments. This fan features a heavy-gauge steel housing that minimizes vibration and enhances noise reduction, contributing to a quieter operation, a critical factor in maintaining a serene working environment.

The fan is equipped with a powerful motor that ensures efficient airflow, achieving high performance while consuming minimal energy. This energy efficiency is emphasized through the use of advanced motor technology, including variable frequency drive (VFD) compatibility. VFDs allow for precise control of the fan speed, enabling adjustments based on system demand, thus significantly reducing energy consumption and operating costs.

In terms of airflow performance, the Greenheck Fan 470654 is engineered to provide a high volume of air movement while maintaining static pressure. Its aerodynamic design minimizes resistance, enhancing overall efficiency. The fan is designed to operate across a range of static pressures, making it versatile for different applications, from commercial kitchens to large manufacturing facilities.

Additionally, the fan's installation is straightforward, thanks to its user-centric design. The model incorporates mounting brackets and options for various duct configurations, ensuring seamless integration into existing systems. Maintenance is also made easier with accessible components, allowing technicians to perform regular checks and upkeep without extensive downtime.

Safety features are a priority in the design of the Greenheck Fan 470654. It includes protective features such as thermal overload protection to prevent motor damage and extend operational life. The fan's design also adheres to industry standards and regulations, providing peace of mind for users.

In summary, the Greenheck Fan 470654 is a well-engineered solution that combines durability, efficiency, and advanced technology to deliver superior performance in ventilation applications. With its powerful motor, energy-saving capabilities, and ease of installation and maintenance, it stands out as a reliable choice for professionals seeking optimal airflow management.
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