Greenheck Fan 470654 manual Start-Up Direct Gas, Set-Up Optional Components

Page 15

Set-Up Optional Components

Adjust the settings on the optional components. See the unit’s specific wiring diagram located on the access door or the unit.

•Heating Inlet Air Sensor

Typical setting: 60-70ºF

•Building Freeze Protection

Typical setting: 5 minutes; 45ºF

•Dirty Filter Gauge

Typical setting: Settings vary greatly for each unit. (see Reference section for adjusting information)

Start-Up - Direct Gas

important

For proper unit function and safety, follow the start-up procedure in the exact order that it is presented.

important

This start-up should begin after all of the installation procedures and the blower start-up have been completed.

Check the Supply Gas Pressure

Check the supply gas pressure and compare it with the unit’s nameplate pressure requirements. Adjust the supply regulator as needed until the supply gas pressure is within the specified range. The direct gas nameplate is located on the outside of the unit on the control center side.

Minimum and maximum gas pressures for maximum output

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

EQUIPPED FOR

AGAINST

 

SCFM

CONCU POUR

CONTE

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

Type of gas

Direct Gas Nameplate

Check the Pilot Gas Pressure

Check the pilot gas pressure. The recommended gas pressure is 3 in. wg. Adjust the pilot regulator as needed. See the Gas Train Layout in the Reference section for the location of the pilot pressure test port and pilot regulator.

Check the Optional High and Low Gas Pressure Switches

Check the settings on the high and low gas pressure switches. The high gas setting is typically 8 in. wg (2 kPa) and the low gas setting is typically 3 in. wg (0.7 kPa). The switches are set at the factory and should not need adjustment. Adjust the settings if needed. See the Gas Train Layout in the Reference section for the high and low pressure switch location.

important

The purpose of the high and low gas pressure switches is to automatically shut down the burner if the inlet gas pressure is too low for the burner to safely light, or if the manifold pressure is too high for the burner to operate properly.

Model VSU Make-Up Air 15

®

Page 14 Page 16
Image 15
Page 14 Page 16
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 SectionBurner Subassembly Control CenterDampers Installation Complete Installation Installation of Optional Service PlatformService Platform Material List Figure C AssemblyInstallation of Electrical Wiring Installation of Direct Gas Piping Install Additional Regulator if RequiredDetermine the Supply Gas Requirements Installation of Building Pressure Control optional Start-Up Checklist Unit Model NumberCheck blower rotation Check for vibration Supply fan RPM 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 ValvesSet the Unit’s Operating Temperature Flame Signal Check Pilot IgnitionMaxitrol Series 44 9 Terminals The Maxitrol 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 controlsMaintenance Log WarrantyDateTime AM/PM

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.
Top Page Image Contents