Mammoth V-Cube User Manual

V-Cube™Floor-by-floor, Vertical Self-contained SystemInstallation, Operation and Maintenance Instructions ManualCapacities: 9–150 tons©2012 Venmar CES

9. After two sections are assembled, verify that the assembly is level and square. If an adjustment is re-quired, make certain to address it immediat

Suspended Unit InstallationTo install units that will be permanently suspended, the units must be set on structural steel beams that are sup-ported by

control interlocks as per electrical schematics and se-quence of control.• Numbered terminals strips are included in the control panel for ease of co

Coil or Water Cooled Condenser (WCC) Piping ConnectionsConnections to the unit coil (water, steam or non-inte-grated direct expansion, WCC or humidifie

Start-upPre Start-up CheckBefore requesting start-up, check that the installation is complete and unit is ready. Complete the pre start-up below (if i

Start-up ProcedureTo ensure proper operation of each unit, qualified person-nel should perform the start-up as outlined below (based on options include

Airflow BalancingFor proper performance the unit must operate at the spec-ified supply and exhaust flow rates as shown in the me-chanical drawings. Unit

Refrigerant SystemsCompressorsScroll-type compressors are the most common type of compressor used by Venmar CES. Other types of compres-sors are avail

DampersUnits from Venmar CES may or may not incorporate the use of dampers. If dampers are present within the unit, the following maintenance should o

3. Check each V-belt tension and adjust 3. the motor base for correct amount according to the deflection outlined in the Measuring Belt Tension proced

Table of ContentsNomenclature ...

6. Fan, wheels, housings and drive assemblies 6. should be checked for dirt buildup annually and cleaned if necessary to keep them from becoming unba

FANWALL® ArrayMaintenance ScheduleFANWALL array of multiple direct driven plenum fan and motor “cubes” are equipped with permanently sealed bearings a

5. After removing the motor pedestal 5. retaining bolts, slide the motor/fan/pedestal assembly out to the point where the motor lifting ring is clear

ward or backward. Fan wheel should not be rubbing on the inlet cone. If cone alignment is required see instructions for Fan Wheel/Cone Alignment below

4. Gently rotate the fan wheel to verify location of ad-justment required.5. To make adjustment, loosen (do not remove) all the cone retaining faste

Blank-off Plate (if applicable)1. Optional blank-off plate(s) are available so that main-tenance staff can block the intake of a single fan to preven

MotorsMotors will operate effectively for years if they are kept clean, dry and properly lubricated. An excessive running current is a good indication

Cleaning Procedure1. Shut down the unit by closing the main disconnect at the power inlet.2. Open panels or doors to gain access to both sides of th

Appendix A: Water Cooled Condenser (WCC) Piping Installation, Maintenance and TroubleshootingUnits have the WCC supply and return line internally coup

air in order to avoid unexpected high head pres-sure and poor cooling/heating performance.f. A flow balancing valve in the return water line to set th

NomenclatureVV YGSM000 0LModel Indicator V − V-CubeVolume ControlV − Variable air volume C − Constant air volumeCondenserN − No cooling X − Dx with

Monthly• Check water cooled condensers for scaling and pro-ceed with brushing and cleansing if necessary.Quarterly• Check oil level in compressor (h

4. Install the recommended size suction 4. line filter drier and new size liquid line filter drier. Evacuate sys-tem using the triple evacuation method

Appendix B: Positive and Negative Pressure TrappingPositive Pressure TrappingNegative Pressure TrappingLXKHK = Minimum 0.5” [13 mm]H = 0.5” [13 mm

Appendix C: V-Cube™ Start-up Report and ChecklistVenmar CES Inc. 200 Rue Carter St.-Léonard-d’Aston, QC Canada J0C 1M0Email to tech support: venmarser

Table C1: Pre Start-up ChecklistChecklist Item Yes N/A7Have coils been checked for fin damage and dirt, straightened with a fin comb and cleaned?a. Are

Serial Number: _____________________________________Table C2: Start-up ChecklistChecklist Item Yes N/A1 Before proceeding, complete the Pre Start-up C

Serial Number: _____________________________________Nameplate voltageInput voltage L1–L2 L2–L3 L1–L3Table C3: Start-up Readings – Supply FansRotation

Serial Number: _____________________________________Table C5: Start-up Readings – Condenser FansRotation CorrectNameplate AmpsAmp DrawFull Load AmpsO/

Serial Number: _____________________________________Table C7: Start-up Readings – Water Source Heat Pump (WSHP)/Water Cooled Condenser (WCC)Waterside

Item Description Inspection Date/Reading4Refrigerant pressure at storageDate PSIGCompressor #1Compressor #2Compressor #3Compressor #4Compressor #5Comp

Safety ConsiderationsWarning, Caution and Important notes appear through-out this manual in specific and appropriate locations to alert Installing Cont

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

a frame bank of multiple frames, install the lower filters first so that the upper filters can rest on the lower filters.Step 3Place a latch so that it ov

Appendix E: 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 s

Appendix F: Extended Dormant Unit Maintenance ProcedureThe following procedures must be applied to any unit which is stored for a period exceeding one

Appendix G: V-Cube™ Maintenance Summary ChartTable G1: Maintenance Summary Chart – V-CubeItem No. Description Monthly QuarterlySemi- annuallyAnnuallyG

Appendix H: Measuring and Adjusting V-belt TensionTable H1: Measuring V-belt TensionV-belt Cross SectionSmall Sheave Diameter Range (Inches)Recommende

Appendix I: FANWALL® Inlet Cone AlignmentTable I1: FANWALL Wheel/Cone Alignment Dimensions (Inches)Wheel Size Backplate OD Blade Width Backplate Exten

Appendix J: Filter Resistance and LatchesTable J1: Prefilters (MERV 8)Depth Nominal SizeCapacities (CFM) Resistance @ Capacity (in. w.g.)Medium High Me

Appendix K: TroubleshootingTable K1: Troubleshooting – V-Cube™Symptom Possible Cause Corrective ActionGeneralAir supply too cold. Supply and exhaust a

Unit Inspection on ArrivalInspect the equipment exterior and interior for any dam-age that may have occurred during unit shipment and for shipped loos

Table K1: Troubleshooting – V-Cube™Symptom Possible Cause Corrective ActionPrefilter is wet.Outside air hood is shipped loose and was not well sealed w

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©2014 Venmar CES Inc.VCES-V-CUBE-IOM-1AFebruary 2014 Venmar CES Inc. has a policy of continuous improvement and reserves the right to change design an

Rigging, Lifting and AssemblingAll rigging equipment and labor (as applicable) is provided by the Installing Contractor as detailed below. It is highl

section to be suspended by the lifting lugs for an extended period of time. Once the unit or unit section leaves the trailer, ensure it is level at al

5. For modular integrated water cooled units, the compressor/condenser section should first be mated to the coil section as outlined in Figure 2 prior

7. Use tools (chains, chain blocks, 7. chain type come along, etc.) connected to the side lifting lugs (at-tached to the base) on both sides of the u