Venmar HEPA 4000 Spécifications

VHC-72Semi-custom Commercial Energy Recovery VentilatorInstallation, Operation and Maintenance Instructions ManualCapacity: 5,000 to 8,000 cfmModel: V

Coil or WSHP Piping ConnectionsConnections to the unit coil or WSHP system is by oth-ers. External supply and return piping design and all other safet

Gas ConnectionsRefer to Appendix D for gas-fired furnace module installa-tion and maintenance information.Start-upPre Start-up ChecklistBefore requesti

Start-up ProcedureTo ensure proper operation of each unit qualified person-nel should perform the start-up and complete the checklist below and the sta

Airflow BalancingFor proper performance the unit must operate at the spec-ified supply and exhaust flow rates. Unit fan speed(s) and damper positions are

MaintenancePlease see the mechanical drawings for service clearance dimensions. See Appendix H for troubleshooting and ad-ditional service and mainten

FansFan wheels and housings should be checked for dirt buildup. If the forward curved exhaust fan is dirty, it will be necessary to remove the blower

Plenum Supply or Exhaust Fan and MotorTo remove plenum fan and motor disconnect the four-wire electrical cable from the motor junction box. Remove the

4. After removing the mounting bolts, slide the motor pedestal to the point where the motor lifting ring is exposed enough to use. If a mechanical de

12. Reconnect the four-wire electrical cable from the motor junction box. Before operation, start the motor slowly to ensure the fan rotation is corr

5. To make adjustment, loosen (do not remove) all the cone retaining fasteners.6. Using a rubber mallet, gently tap around the cone until desired cl

Table of ContentsRecommended Spare Parts ...

Enthalpy WheelThe opposing airflow pattern through the enthalpy wheel allows for self-cleaning and if the air filters on both air-streams are properly m

Testing and Replacement of the Damper ActuatorAfter disconnecting the power from the unit, determine if the actuator is defective. Disconnect the 24 v

Appendix A: Hood InstallationExhaust air dischargehood with birdscreenOutdoor air intakehood with birdscreenIMPORTANT1. Outdoor air intake and exhaus

Appendix B: Rigging and Lifting DetailsCAUTION1. Rigging and lifting units without using all lifting lugs will compromise the structural integrity of

Appendix C: Water Source Heat Pump (WSHP) Water Line Piping Requirements and OptionsWater Supply and Return Piping RequirementsRecommended and requir

tion, temperature and pressure limits of the optional com-ponents are provided below.Strainer with Blowdown ValveThe strainer with blowdown valve is a

Flow EquationUS gpm = Cv x √∆P/SGWhere:Cv is the flow coefficient for the valve ∆P is the fluid pressure drop across the valve in psi SG is the specific g

Appendix D: Gas-fired Furnace Module Installation and MaintenanceThe furnace covered by this appendix is a component of a “Listed” product, subject to

Outdoor InstallationAir for CombustionThe furnace is power vented with a combustion air draft inducer/blower and needs an ample supply of air for prop

VentingEach furnace must be connected to a venting system to convey flue gases outside of the heated space. Refer to in-stallation codes noted above fo

NomenclatureThe VHC-72 offers a wide range of features and options and can be used as a stand alone air-to-air energy recovery device or as an integra

3. The vent system must also be installed to prevent collection of condensate. Pitch horizontal pipe runs downward ¼” per foot [21 mm per meter] towa

Proper installation of combustion air intake and flue gas exhaust piping are essential to proper operation of the in-shot gas burner module. See Figure

4. For the furnace(s) to operate properly, the minimum inlet gas supply pressure to each furnace for natural gas operation is 5.0” w.c. and for propa

3. The heat capacity of the furnace is controlled by the burner orifices and the gas manifold pressure. The manifold pressure is factory set but shoul

Operating and Safety Instructions1. See Figure D8 for component locations.2. This furnace module does not have a pilot. It is equipped with a direct

may be caused by lint and dirt accumulation inside burner or at burner ports, at air inlet be-tween burner and manifold pipe, or debris in the main bu

2. The furnace is equipped with manual reset rollout switch(es) in the event of burner flame rollout. The switch will open on temperature rise and shu

On/Off Burner Firing Rate Control with Utec 1016-xxx Direct Spark IgnitionSequence of Operation1. Thermostat closes on call for heat providing 24 VAC

Two-stage Burner Firing Rate Control with Utec 1171-63 Direct Spark IgnitionSequence of OperationWhen the control is in standby mode, the diagnostic r

Table D4: Troubleshooting Guide for Utec 1171-63 Two-stage BoardLED CodeSystem ModeDescription ActionsHeartbeat System is functioning properly. None2

Safety ConsiderationsWarning, Caution and Important notes appear throughout this manual in specific and appropriate locations to alert Installing Contr

Full Modulation Burner Firing Rate Control with Utec 1016-427 Direct Ignition Control, TR1 Timer and SC30 Modulating ControlSequence of Operation1. T

Table D5: Troubleshooting Guide for Utec 1016-xxx Ignition BoardLED CodeSystem ModeDescription ActionsSteady On Normal LED is lit. 24 VAC is applied t

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Appendix E: VHC-72 Start-up Form and ChecklistTable D1: Pre Start-up ChecklistChecklist Item Yes N/A1 Is the electrical disconnect set to the ‘Off’ po

Table E2: Start-up ChecklistChecklist Item Yes N/A1 Before proceeding complete the Pre Start-up Checklist.2 Close all access panels or doors.3 Turn th

Serial Number: _____________________________________Table E3: Start-up ReadingsMode of Operation Heating CoolingPower supplyNameplate voltageVoltage a

This unit has been checked out and started according with the above procedures and completed forms and is operat-ing satisfactorily.After 24 hours of

Appendix F: HEPA Filter InstallationThese instructions are for installing AAF HEPA filters (11½” depth) into AAF HEPA holding frames. The holding frame

Step 2Insert the HEPA filter into the HEPA holding frame. The HEPA should be installed with the gasket side of the filter facing the frame. Insert the fi

Step 4Once all four corner latches have been tightened within ¼” of the leg extension coupling, complete the installation by tightening each corner un

Unit Inspection on ArrivalInspect the equipment exterior and interior for any dam-age on arrival that may have occurred during unit ship-ment and for

Appendix G: Electric Heating Coil and Controls InformationThis electric heating coil module covered by this appen-dix is a component of a “Listed” pro

3 – Operating Electric Coil Heaters3.1 Minimum AirflowEnsure that sufficient airflow as marked on the nameplate is passing through the heater. Airflow sho

Appendix H: TroubleshootingTable H1: VHC-72 TroubleshootingProblem Cause SolutionUnit will not turn on.Occupancy contact open.Check internal time cloc

VCES-VHC72-IOM-1G53Table H1: VHC-72 TroubleshootingProblem Cause SolutionCompressor runs but stops quickly.Overload, fuse burnout.Check if voltage is

Appendix I: Enthalpy Wheel Pressure Drop vs. Flow Formula and CurvesEnthalpy Wheel Pressure Drop vs. Flow FormulaFlow in cfm = pressure drop measured

Appendix J: Enthalpy Wheel Multi-link Drive Belt InstructionsHow to MeasurePull belt tight around sheaves to check hand tight length, overlapping the

Alternative Installation Method1. Set motor in mid position of adjustment range and mark base clearly.2. Determine required belt length as described

Appendix K: FANWALL® Supply Fan Inlet Cone AlignmentNote: Drawings not to scale4.280Blade width(100% wide)0.7000.250 overlap12.500O.D.backplateWheel/C

Appendix L: Forward Curved Exhaust Fan Bearing Relubrication ScheduleFan Model ATL1 9-6 & ATL1 9-7 ATL1 10-7 & ATL1 10-9 ATL1 12-9 ATL1 12-12

Appendix M: VHC-72 Maintenance Summary ChartTable M1: VHC-72 Maintenance SummaryItem No. Description Note Monthly QuarterlySemi-annuallyAnnuallyGenera

InstallationUnit Location RequirementsConsult local building codes and electrical codes for spe-cial installation requirements and note additional req

IMPORTANTFor gas-fired furnace module maintenance, see Appendix D and for electric coil maintenance, see Appendix G.Table M1: VHC-72 Maintenance Summar

©2012 Venmar CESVCES-VHC72-IOM-1H (PN 5000044944)September 2014Venmar CES has a policy of continuous improvement and reserves the right to change desi

Roofcurbs Supplied by Venmar CES (External Applications Only)Roofcurbs supplied by Venmar CES should be mounted as follows:• The roofcurb is shipped

Rigging and Lifting the UnitUnit shall be lifted by cables attached to all the lifting lugs provided on the unit base. Consult the mechanical draw-ing

Internal PackagingOpen access doors or panels and remove all packaging from the unit. Removal of all packaging is critical.Electrical ConnectionsThe u