Related Manuals for Daikin Vision CAH 003-090 C
Summary of Contents for Daikin Vision CAH 003-090 C
- Page 1 Installation and Maintenance Manual IM 672-11 Group: Applied Air Systems Part Number: IM 672 Date: January 2017 Vision Air Handler ® Models CAC/CAH 003—090 C...
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Page 2: Table Of Contents
able of able of onTenTs onTenTs able of onTenTs Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Operation . -
Page 3: Introduction
nTroduCTIon nTroduCTIon General Information Receiving and Handling 1 . Carefully check items against the bills of lading to verify CAUTION all crates and cartons have been received . Carefully inspect all units for shipping damage . Report damage Sharp edges and coil surfaces are a potential injury hazard . immediately to the carrier and file a claim. -
Page 4: Unit Storage
nTroduCTIon Unit Storage • Store on a level surface in a clean, dry location where Belt-Driven fans temperature can be controlled if possible . • Reduce belt tension by at least 50% or remove the belts . • Pack fan and motor bearings (unless motor bearings are Remove belts if they will be subjected to temperatures sealed) with compatible grease with the shaft stationary. -
Page 5: Mechanical Installation
eChanICal nsTallaTIon eChanICal nsTallaTIon Service Clearances Figure 1: Servicing Space Requirements In addition to providing adequate space around the unit for piping coils and drains, access to at least one side of the unit 4 . 0 0 " b a s e r a i l e x t e n s i o n is always required to allow for regular service and routine maintenance, which includes filter replacement, drain pan inspection and cleaning, fan bearing lubrication, and belt... -
Page 6: Rigging
eChanICal nsTallaTIon Rigging Figure 4: Units on Skids WARNING Use all lifting points . Improper lifting can cause severe personal injury and property damage . CAUTION Lifting points may not be symmetrical to the center of gravity of the unit . Ballast or unequal cable lengths maybe required . DANGER DO NOT LIFT FROM 2"... - Page 7 eChanICal nsTallaTIon Class II plenum fans that are stacked on another section may Figure 7: Direct-Drive Class II Plenum Fan Stacked Unit be lifted using the methods shown in the following figures. The shipping brackets must remain in place and be tight in order to lift using this method .
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Page 8: Unit Leveling
eChanICal nsTallaTIon Unit Leveling Assembling Sections Place the equipment on a flat and level surface. Where the External Section-to-Section Mounting surface irregularities could cause the equipment to distort, use a shim so the base of the unit is a straight line . Uneven Vision air handling units can ship fully assembled or as or distorted sections cause misfit or binding of the doors and separate shipping sections. - Page 9 eChanICal nsTallaTIon Vertical Inverted Airflow Section Figure 10: Horizontal Joining Sections Mounting T o p For vertical or inverted arrangements, before lifting any top mounting sections into place, rig into place and fasten together the bottom tier of sections . Once bottom level sections are in place and secured, lift stacked components and fasten using the following procedure: NOTE: See...
- Page 10 eChanICal nsTallaTIon Extended Coil Section Mounting Side-by-Side Heatwheel Section Joining The extended coil section is 6" wider than all other sections of The side-by-side heatwheel will have two individual sections the same unit size. The extension is always located on the coil parallel in the direction of airflow to be attached to either side.
- Page 11 eChanICal nsTallaTIon Figure 15: Base Plate Detail Figure 17: Frame Channel Detail Internal Section-to-Section Mounting 7 . Replace the fasteners in their original position, through If desired, shipping sections can be fastened together the joining plate . internally. To fasten internally, run field-provided #10 sheet 8 .
- Page 12 eChanICal nsTallaTIon Ceiling Hung Using Angle Iron Channel Figure 19: Internal Fastening Install field-provided angle iron or channels per SMACNA guidelines . When a unit is unitized (ships in one piece), channel support each component under the unit width (Figure 21) .
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Page 13: Panels, Frame Channels, And Doors
eChanICal nsTallaTIon Panels, Frame Channels, and Doors Panel Removal Fan Section Doors To remove a side or top panel, remove the flat head Torx 30 CAUTION fasteners along the sides of the panel . Lift off the panel after removing all fasteners . Sharp edges and coil surfaces are a potential injury hazard . - Page 14 eChanICal nsTallaTIon Injected-Foam Insulated Panels Field Mounting Junction Boxes and Other Components Vision air handlers are furnished with double-wall, injected- foam insulated panels . Foam panels are stronger, more rigid, For field mounting 4" × 4" or smaller junction boxes to the and lighter than panels with fiberglass insulation.
- Page 15 eChanICal nsTallaTIon Bypass Into a Vertical Fan Section External Face and Bypass Duct Assembly (Sizes 040 to 090) Vertical coil sections and the top mounted fan section always ship separately and must be mounted together at the job site . When unit sizes 040 to 090 are ordered with external face The vertical coil section and the bypass duct each has a joining and bypass, the bypass duct ships separately and must be...
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Page 16: Multizone Assembly
eChanICal nsTallaTIon Multizone Assembly Multizone Damper Assembly The multizone section may ship completely assembled or it may ship in numerous pieces . Whether the section ships When a multizone unit is ordered with dampers, depending in a single piece or multiple pieces depends on customer on the multizone configuration and size, the damper assembly requirements and the unit size . -
Page 17: Duct Connections
eChanICal nsTallaTIon Duct Connections Use flexible connectors on the outlet and inlet duct connections Figure 31: Bell Arms at 45° Angle to Vertical Center of all units . Each zone divider has a W-shaped duct clip . Insert Z o n e d a m p e r l i n k a g e ductwork into this clip (Figure 30) . - Page 18 eChanICal nsTallaTIon Multizone, Mixing Box and Economizer Angled Economizer Actuator Access Damper Torque Requirements For units less than 34" in height, including standard sizes 003-006, access to the damper drive shafts of the angled On multizone units, the actuator must drive the connection link economizer is via the top panel of the section.
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Page 19: Piping And Coils
eChanICal nsTallaTIon Piping and Coils When designing and installing piping: Steam Coils • Follow applicable piping design, sizing, and installation Piping (see Figure information in ASHRAE handbooks . • Observe all local codes and industry standards . • All steam coils in units are pitched toward return connection . - Page 20 . On high pressure steam, use bucket 35°F) . traps . Use thermostatic traps only for air venting . • Daikin strongly recommends 5JA, 8JA, 5RA and 8RA • Use bucket traps for on/off control only . coils .
- Page 21 eChanICal nsTallaTIon Figure 33: Piping Arrangements Control valve Float and modulating Check Valve Strainer Gate Valve thermostatic trap two position High Pressure (over 25 psi) 5TA, 8TA, or 5HA coils. Conden- 5GA or 8GA coils. Note that the sate is lifted to overhead return addition of a vacuum breaker to main permit the coil to drain during...
- Page 22 eChanICal nsTallaTIon Water Heating Coils Drain Pan Traps Run drain lines and traps full size from the drain pan CAUTION connection. Install drain pan trap to allow condensate to drain freely. On both blow-through and draw-through units, the trap Improper installation, use, or maintenance of water heating depth and the distance between the trap outlet and the drain coils can cause equipment damage.
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Page 23: Internal Isolation Assembly Adjustment
eChanICal nsTallaTIon Internal Isolation Assembly Adjustment On units with internally isolated fan and motor assemblies, the For models 040 through 090 with housed fans, the isolators assemblies are secured for shipment . should be at equal height (6") during fan operation . Center the fan outlet in the outlet panel opening . - Page 24 eChanICal nsTallaTIon Figure 36: Removing “Motor Behind” Shipping Brackets Figure 37: Removing “Motor Beside” Shipping Brackets IM 672-11 • VISION AIR HANDLING UNIT www.DaikinApplied.com...
- Page 25 eChanICal nsTallaTIon Figure 38: Plenum Fan Typical Shipping Brackets Shipping hold-down nut and bolt Remove and discard - 4 places Shipping bracket - Remove and discard - 4 places www.DaikinApplied.com IM 672-11 • VISION AIR HANDLING UNIT...
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Page 26: Oshpd Seismic Anchoring/Mounting
eChanICal nsTallaTIon OSHPD Seismic Anchoring/Mounting For seismic stability of the unit, additional anchoring and Figure 40: Unit with Base Frame Welded mounting procedures are required . The anchoring options and corresponding spectral response acceleration are given in Table 6. Holes in the Vision/Skyline base frame are to be field drilled. -
Page 27: Electrical Installation
. furnished and mounted by either Daikin, or by others, refer to the specific manufacturer’s literature for allowable waiting Control Wiring periods For discharge of capacitors . Verify capacitors have been discharged using an appropriate voltmeter . -
Page 28: Operation
peraTIon peraTIon Startup Checks Before Starting the Unit WARNING ROTATING FAN CAUTION Can cause severe injury or death . Before servicing fans,lockout Equipment damage due to loose fasteners represents and tag out power. improper start-up and equipment abuse . It is not covered by the warranty. -
Page 29: Vfd Setup
peraTIon VFD Setup Fan Wheel Alignment Fans ordered with VFDs that were factory installed are setup Figure 42: Wheel-to-Inlet Funnel Relationship— and tested prior to shipment . Prior to starting the fan(s), double Fan Wheels (Housed) check the VFD settings according to the recommendations in the VFD manual . - Page 30 peraTIon Figure 45: Wheel-to-Inlet Funnel Relationship— Figure 46: Wheel-to-Inlet Funnel Relationship— 13 to 36 Belt-Drive Plenum Fans 40 to 60 Belt-Drive Plenum Fans Cross Section Reference Cross Section Reference EQUALLY SPACED AROUND DIAMETER FUNNEL END TO FAN WHEEL OPENING FROM FUNNEL END TO EQUALLY FANWHEEL OPENING END SPACED AROUND...
- Page 31 peraTIon Figure 47: Fan Wheel Rotation Figure 48: Wheel-to-Inlet Funnel Relationship— Table 11: Wheel-to-Inlet Funnel Relationship— Inline Fans Overlap Direct-Drive Fans Only Class II fans Fan Size Overlap (in .) Overlap 0 .25 0 .25 0 .25 0 .38 0 .38 0 .41 0 .45 0 .50...
- Page 32 peraTIon Table 13: Setscrew Torque Specifications— Table 14: Bearing Collar and Wheel Hub Set Screw Torque Class II Plenum (All Fans Except Class II Plenum Fans) Torque (ft .-lb) Set Screw Diameter (in) Minimum torque ft/lbs (kg/m) Fan Size Setscrew Size Aluminum Steel 5 .5 (0 .76)
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Page 33: Fan Array
Daikin supplied VFD . Care should be taken when programing and synchronizing the drives in the Daikin Fan Array such that all fans turn at the same speed . Fans running at unequal speeds can produce vibration and could stall a fan. Definition of fan numbering is... -
Page 34: Measurement Device
peraTIon Optional Piezometer Ring Airflow Measurement Device Table 15: DDPL Factors For Free and Ducted Inlet— Piezometer rings are available as an option on direct drive Non Standard Density Method plenum fans to measure airflow though the fan. The device consists of a piezometer ring mounted in the throat of the Product C1 Free Inlet... - Page 35 peraTIon Figure 51: Direct-drive Plenum Fan Installation Route tube (DCX56) from the high pressure tap of the transmitter to the outer face of the funnel or the inlet panel . Secure tubing to the fan assembly using cable-tie mount (DCX52) and Location may vary depending on fan size .
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Page 36: Operating Limits
peraTIon Operating Limits Do not exceed the operating limits in Table 17 through Table 21. A fan wheel operated beyond the rpm and temperature limits shown can suffer permanent distortion or fracture. The resulting unbalance can cause severe unit vibration . Table 17: Fan Operating Limits—Unit Sizes 003 to 035 Forward Curved—Housed Airfoil—Housed... -
Page 37: Maintenance
Ball Bearing Lubrication 225 (107°C) for intermittent operation . For a lubrication schedule, see Table 22 . For applications that are not in the range of the table, contact Daikin . CAUTION Bearing overheating potential . Can damage the equipment . - Page 38 aInTenanCe VM/VP Variable Pitch Key Type Sheaves Table 25: Recommended Lubricants for Fan Shaft Ball Bearings Mounting: NLGI Name Temperature Base Thickener Grade 1 . Mount all sheaves on the motor or driving shaft with the Texaco, Premium 30° to 350°F Parafinic Lithium setscrews A toward the motor.
- Page 39 aInTenanCe LVP Variable Speed Sheaves Mounting: Adjusting: 1 . Slide sheave on motor shaft so that the side of the 1 . Slack off belt tension if belts have been installed . sheave with setscrew A is next to the motor when 2 .
- Page 40 aInTenanCe MVP Variable Speed Sheaves Mounting: 4 . Any pitch diameter can be obtained within the sheave range . One complete turn of the outer locking ring 1 . Verify both driving and driven sheaves are in alignment changes the pitch diameter 0 .233" . and the shafts are parallel .
- Page 41 aInTenanCe Table 27: Screw Torque Values Socket Head Cap Screws Flat Head Socket Screws Hollow Head Set Screws Only Nominal Lengths Equal or Greater Than Dia . For Lengths (L) Less Than Dia . Screw Size Seating Torque Seating Torque Seating Torque Seating Torque Length (L)
- Page 42 aInTenanCe Fan Drive Belt Table 28: Belt Deflection Force (per Browning WARNING Specifications) Moving belt and fan can cause severe personal injury or death . Number of Belts (Deflection Force lbs) Cross Small Sheave During installation and filter maintenance: Section Diameter (in) •...
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Page 43: Filters
aInTenanCe Filters Front Load Filter Option Table 29: Filter Pressure Drops Bag filters—DriPak 2000 Front loaded filter options require that the filters be removed Efficiency and replaced from inside the unit . Rated velocity To remove filters, rotate the wire clips. This releases both the (FPM) prefilter and the final filter. -
Page 44: Coils
NOTE: Carefully read instructions for mixing antifreeze solution used . Some products have a higher freezing point in their natural state when mixed with water. Daikin is not responsible for the freezing of coils . IM 672-11 • VISION AIR HANDLING UNIT... - Page 45 aInTenanCe Removing the Fan Section Removing and Replacing the Coil The fan shaft, motor, and any drive components can be The coil can be removed by the side, top, or a combination of removed and replaced through the access door opening . If both.
- Page 46 aInTenanCe Installing Stacked Coils Figure 59: Single Coil Removal 1 . Slide the bottom coil through the opening in the coil Opposite Connection connection section onto the bottom coil rests . 2 . Place the coil up against the coil bulkheads to prevent any air bypass around the coil .
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Page 47: Parts
Replacement Parts When writing to Daikin for service or replacement parts, refer to the model number and serial number of the unit stamped on the serial plate attached to the unit . If replacement parts are required, mention the date of installation of the unit and date of failure, along with an explanation of the malfunctions and a description of the replacement parts required. -
Page 48: Service And Warranty Procedure
Enter the required information to expedite handling and prompt issuance of credits . All parts must be returned to the appropriate Daikin facility, designated on the “Return Goods” tag . Transportation charges must be prepaid . -
Page 49: Check, Test, And Start Procedure Form
Air Handling Equipment Warranty Registration Form To comply with the terms of Daikin Applied Warranty, complete and return this form within 10 days to the Warranty Department of Daikin Applied. Check, test, and start procedure for air handling units with or without heat recovery and roof mounted air handlers. - Page 50 heCk TarT roCedure AHU Equipment Warranty Registration Form (continued) Select Yes or No. If not applicable to the type of unit, select N/A. I. INITIAL CHECK A. Is any shipping damage visible? ........Yes B.
- Page 51 heCk TarT roCedure AHU Equipment Warranty Registration Form (continued) Select Yes or No. If not applicable to the type of unit, select N/A. IV. ELECTRIC HEAT A. Electrical heat service corresponds to unit nameplate? ......Yes Volts _____________ Hertz _____________ Phase _____________ B.
- Page 52 heCk TarT roCedure AHU Equipment Warranty Registration Form (continued) Select Yes or No. If not applicable to the type of unit, select N/A. VIII. Design Flow calibration A. Verify power is supplied to the MicroTech III unit controller ......Yes B.
- Page 53 AAH.Wty_WAR_forms@daikinapplied.com Please fill out the Daikin Applied “Quality Assurance Survey Report” and list any additional comments that could affect the operation of this unit; e.g., shipping damage, failed components, adverse installation applications, etc. If additional comment space is needed, write the comment(s) on a separate sheet, attach it to the Survey Report and return it to the Warranty Department of Daikin Applied with the completed Equipment Warranty Registration form.
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Page 54: Quality Assurance Survey Report
Poor 10. How would you rate the overall quality of the product? Excellent Good Fair Poor 11. How does the quality of Daikin Applied products rank in relation to competitive products? Excellent Good Fair Poor Comments _______________________________________________________________________________________ Please list any additional comments which could affect the operation of this unit; i.e., shipping damage, failed components, adverse installation applications, etc. If additional comment space is needed, write the comment(s) on a separate sheet, attach the sheet to this completed Quality Assurance Survey Report, and return it to the Warranty Department with the completed preceding “Equipment Warranty Registration Form”. - Page 55 able of onTenTs IM 672-11 • VISION AIR HANDLING UNIT www.DaikinApplied.com...
- Page 56 able of onTenTs IM 672-11 • VISION AIR HANDLING UNIT www.DaikinApplied.com...
- Page 58 Daikin Applied Training and Development Now that you have made an investment in modern, efficient Daikin equipment, its care should be a high priority. For training information on all Daikin HVAC products, please visit us at www.DaikinApplied.com and click on Training, or call 540-248-9646 and ask for the Training Department.