Greenheck Fan 470654 manual Complete Installation, Installation of Optional Service Platform

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Complete Installation

A typical horizontal discharge installation is shown. Gas and/or electrical lines can be connected at this time.

For upblast units, a duct elbow may be needed to turn the ductwork into the building. Follow proper ductwork methods recommended by AMCA to make this elbow to minimize duct losses.

8Model VSU Make-Up Air

Installation of Optional Service Platform

TOOLS REQUIRED

•(2) 9/16 in. sockets or wrenches

•Drill with 7/16 in. drill bit and 5/16 in. drill bit

•A crane or forklift is recommended for assembly and attachment.

Service Platform Material List

	(1) Left Hand Rail with	(1) Right Hand Rail	(2) Legs
	Safety Chains

(1) Platform Base Unit with

predrilled holes for hand (1) Leg Cross Member rails, legs and attachments.

Fasteners

(3)Hex Head Bolts 3/8 in. x 1-1/2 in.

Thread Cutting

(2) Screws

		3/8 in. x 1 in.
	(18)	Hex Head Bolts
	(18)	3/8 in. x 3/4 in.
		3/8 in. x 3/4 in.

(27)Hex Head Nuts

3/8 in.

®

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Contents Installation, Operation and Maintenance Manual Model VSU General Safety InformationInspection and Maintenance during Storage ReceivingUnpacking HandlingTable of Contents Product Overview Subassemblies Burner, Blower and Control Center Section Open ViewDampers Burner SubassemblyControl Center Installation Service Platform Material List Complete InstallationInstallation of Optional Service Platform Assembly Figure CInstallation 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 Optional High and Low Gas Pressure Switches Start-Up Direct GasSet-Up Optional Components Check the Supply Gas PressureMaximum firing rate adjustment Set the Burner Air Pressure DifferentialSet the Maximum Firing Rate Measuring the Pressure DropRegulators and Modulating Valves Set the Minimum Firing RateMaxitrol Series 44 9 Terminals The Maxitrol Set the Unit’s Operating TemperatureFlame Signal Check Pilot Ignition Variable Volume Operation Operation VAV Units optionalSpeed ModulatingOperation Recirculating Units optional Operation ElectricalRecirculation Operation Electrical Sequence Exhaust Fan Contact S1 Closed optionalFlame Safeguard FSG Sequence 3a. Heat Contact S4 Closed Pilot Ignition3b. Heat Contact S4 Closed Direct Spark Heat Contact ClosedTroubleshooting Blower Does Not OperateMotor Overamps Insufficient Airflow Too Much AirflowExcessive Noise or Vibration Heater Does Not Operate Pilot Ignition Does not attempt to light No visible sparkAttempts to light, but no pilot visible spark Visible pilot Between 0.625 and 0.675 in. WC?Heater Does Not Operate Direct Spark Attempts to light, but no flame Visible spark Maintenance Routine Belt DrivesMotors WheelsMaintenance Fall Reference Typical Gas Train Layout with Direct Spark Ignition Dirty Filter Switch Fan Relay allows power to pass to energize motor starterHeat Relay allows power to pass to heating controls Control Center LayoutDateTime AM/PM Maintenance LogWarranty