Greenheck Fan VSU manual Start-Up Checklist

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check boxes as items

Reference

Start-Up Checklist

Unit Model Number ________________________________

(e.g. VSU-220-H40-UB)

Unit Serial Number ________________________________

 

(e.g. 04c99999 or 10111000)

Start-Up Date

________________________________

Start-Up Personnel Name___________________________

Start-Up Company

________________________________

Phone Number

________________________________

Pre Start-Up Checklist are completed.

oCheck tightness of all factory wiring connections

oVerify control wiring wire gauge

oHand-rotate blower to verify free rotation

oVerify supply voltage to the main disconnect

oVerify the supply gas pressure

oVerify remote controls wiring

Start-Up Blower Checklist refer to Blower Start-Up section for further detail.

o Check line voltage

L1-L2___________

 

L2-L3 __________

 

L1-L3___________

oCheck blower rotation

oCheck for vibration

o Supply fan RPM

__________

RPM

o Motor nameplate amps

__________

Amps

o Actual motor amps

__________

Amps

o Actual CFM delivered

__________

CFM

Optional Accessories refer to Blower Start-Up section, Step #6 for further detail.

oHeating Inlet Air Sensor

_________ Actual Setting

Typical setting 60º-70ºF

Start-Up Direct Gas refer to Direct Gas Start- Up section for further detail.

oCheck supply gas pressure

_________ Maximum

_________ Minimum

_________ Actual

oCheck Pilot Gas Pressure

_________ Actual Setting Typical 3.0 inch wc

oSet optional High Gas Pressure Switch

_________ Actual Setting Typical 8.0 inch wc

oSet optional Low Gas Pressure Switch

_________ Actual Setting Typical 3.0 inch wc

oSet Burner Pressure Differential

_________ Actual Setting Typical 0.65 inch wc

oSet the maximum firing rate

_________ temp rise

oSet the minimum firing rate

_________ check

oSet the unit’s operating temperature

_________ ºF

Model VSU Make-Up Air 21

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Contents Model VSU General Safety InformationReceiving Inspection and Maintenance during StorageUnpacking HandlingInstallation Table of ContentsInstall Ductwork Complete InstallationBurner/Blower Section Upblast Discharge Dimensional DataInstall Additional Regulator if Required Installation of Direct Gas PipingDetermine the Supply Gas Requirements Connect the Supply Gas LineTest the System for Leaks Pipe the Optional Vent LineStart-Up Blower Set-up Optional Components Air Volume Measurement & CheckCheck the Supply Gas Pressure Start-Up Direct GasSet the Burner Air Pressure Differential Check the Pilot Gas PressureRegulators and Modulating Valves Set the Maximum Firing RateSet the Minimum Firing Rate Maxitrol Series 14 7 terminalsSet the Unit’s Operating Temperature Flame Signal CheckMaxitrol Series Operation Electrical Blower Does Not Operate TroubleshootingTerminals R and X? Terminals G and X?Does not attempt to light No visible spark Heater Does Not OperateAttempts to light, but no pilot visible spark Visible pilot Belt Drives Maintenance RoutineMotors WheelsBearings Maintenance FallStart-Up High LimitReference Typical Control Center LayoutTypical Gas Train Layout Start-Up Checklist Date Time AM/PM Maintenance LogMaintenance Log Warranty

VSU specifications

Greenheck Fan VSU, or Variable Speed Unit ventilators, represent a significant advancement in the field of HVAC technology. Designed to enhance air quality and energy efficiency, these units are particularly suited for commercial applications such as schools, offices, and industrial facilities. They provide a reliable solution for both heating and cooling, ensuring optimal comfort and productivity in diverse environments.

One of the hallmark features of the VSU is its variable speed motor. This innovation allows the fan speed to adjust according to the specific demands of the space, leading to substantial energy savings compared to traditional fixed-speed units. By operating at reduced speeds during lower load conditions, the VSU minimizes energy consumption while maintaining comfortable indoor conditions. This adaptive capability not only lowers utility bills but also contributes to a reduced environmental footprint.

In addition to energy efficiency, the VSU is equipped with advanced controls that provide precise temperature management and air distribution. These controls can be integrated into existing building management systems, giving facility managers the ability to monitor and fine-tune operations remotely. The ability to set specific schedules and program temperature settings enhances overall building performance and ensures that spaces are only conditioned when necessary.

The VSU is designed with a robust and durable construction, featuring corrosion-resistant materials that prolong the unit's lifespan. This reliability is further enhanced by its easy accessibility for maintenance, making it a cost-effective solution for long-term use. Users can expect a quiet operation due to the fan’s advanced design, which significantly reduces noise levels compared to traditional models.

Furthermore, the VSU supports a variety of custom configurations, allowing it to meet the specific needs of different applications. Whether it's integrating with other HVAC components or adapting to varied ceiling heights, the flexibility of the Greenheck Fan VSU makes it a versatile choice for engineers and building owners alike.

In conclusion, the Greenheck Fan VSU stands out for its combination of energy efficiency, advanced control options, durability, and adaptability. As the demand for sustainable and effective HVAC solutions continues to grow, the VSU positions itself as a top choice for those seeking to enhance indoor air quality while minimizing operational costs.