Related Manuals for Daikin Skyline IM 777-8
Summary of Contents for Daikin Skyline IM 777-8
- Page 1 Installation and Maintenance Manual IM 777-8 Group: Applied Air Systems Part Number: IM 777 Date: March 2014 Skyline Outdoor Air Handler ™...
-
Page 2: Table Of Contents
able of onTenTs able of onTenTs Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Operation Guidelines . -
Page 3: Introduction
021, 025, 030, 035, 040, 050, 065, 080, 085, 090 F = Motor on inline fan G = Motor downstream of direct drive plenum fan Vintage of Daikin air handling unit H = Motor downstream of fan array T = Motor behind twin fan housing... -
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 Rigging In addition to providing adequate space around the unit for Skyline air handlers ship as separate sections, completely piping coils and drains, access to at least one side of the unit assembled, or in modules of assembled sections. The unit is always required to allow for regular service and routine must be rigged as it ships from the factory. -
Page 6: Curb Mounting And Unit Leveling
770. For a with a connection splice joint attached on the leaving air side of copy, contact your local Daikin representative or visit www. the shipping section that seals against the frame channel on the DaikinApplied.com. - Page 7 eChanICal nsTallaTIon Figure 7: Remove Vestibule Lifting Bracket f. For certain Custom Air Handling units, use the provided section joining plates to fasten sections together. Space them as shown in Figure 9. Using the provided ¼"-14 × 1" self tapping screws, drill screw the joining plates into the frame channel on each section, keeping unit sections tight together.
-
Page 8: Panels, Frame Channels, And Doors
eChanICal nsTallaTIon Panels, Frame Channels, and Figure 11: D-Gasket Placement Detail (Custom Air Handling Units Only) Doors Panel Removal To remove a side or top panel, remove the flat head Torx 30 fasteners along the sides of the panel. Lift off the panel after removing all fasteners. - Page 9 eChanICal nsTallaTIon Fan Section Doors Injected-Foam Insulated Panels Skyline air handlers now are furnished with double-wall, WARNING injected-foam insulated panels. Foam panels are stronger, Sharp edges and coil surfaces are a potential injury hazard. more rigid, and lighter than panels with fiberglass insulation. Avoid contact.
-
Page 10: Field Mounting Junction Boxes And Other Components
eChanICal nsTallaTIon Field Mounting Junction Boxes and Figure 17: Flashing Over Top Panels and Sides of Units Other Components F l a s h i n g F l a s h i n g For field mounting 4" × 4" or smaller junction boxes to the U n i t t o p standard panel exterior, use a minimum quantity of four, 3/16"... -
Page 11: Mounting Actuators
eChanICal nsTallaTIon Face and Bypass Section Mounting When units are ordered with exhaust hoods and intake hoods adjacent to each other, install a field-supplied barrier to prevent Internal and external face and bypass sections are mounted recirculation of exhaust air into the intake openings. (Figure together using the instructions for horizontal components 19). -
Page 12: Piping Vestibules
eChanICal nsTallaTIon Piping Vestibules The Skyline air handler has 2 options for piping vestibules. The Field-Installed Vestibule curb ready base unit has a factory installed vestibule and the The unit can be shipped with an optional field installed unitized base option has a field installed vestibule. See order vestibule. - Page 13 eChanICal nsTallaTIon Figure 22: Typical Vestibule Figure 23: Caulking the Vestibule Roof Cap SPLICE COLLAR DETAIL A SHOWN Figure 24: Detail of Mounting Screws UNIT SPLICE COLLAR SCREW UNIT TO VESTIBULE SPLICE DETAIL Figure 25: Additional Caulking www.DaikinApplied.com IM 777-8 • Skyline Air Handler...
-
Page 14: 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. • Steam supply and steam return connections typically are male NPT iron pipe and are labeled on the end panel of •... - Page 15 • Use float and thermostatic or bucket traps for low pressure steam. On high pressure steam, use bucket • Daikin strongly recommends 5JA, 8JA, 5RA and 8RA coils. traps. Use thermostatic traps only for air venting. • Supply 5 psi steam to coils at all times.
- Page 16 eChanICal nsTallaTIon Figure 26: 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 addition of a vacuum breaker to sate is lifted to overhead return main permit the coil to drain during...
-
Page 17: Water Heating Coils
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 Improper installation, use, or maintenance of water heating freely. On both blow-through and draw-through units, the trap coils can cause equipment damage. -
Page 18: 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. with a tie-down at each should be at equal height during fan operation (6"). Center the point of isolation. - Page 19 eChanICal nsTallaTIon Figure 30: Removing “Motor Behind” Shipping Brackets Figure 31: Removing “Motor Beside” Shipping Brackets Figure 32: 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 777-8 •...
-
Page 20: Oshpd Seismic Anchoring/Mounting
eChanICal nsTallaTIon OSHPD Seismic Anchoring/Mounting For seismic stability of the unit, additional anchoring and Figure 34: 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 21: Electrical Installation
Daikin, or by others, refer to the specific of the unit, high enough to clear components inside, but manufacturer’s literature for allowable waiting periods... -
Page 22: Operation Guidelines
peraTIon uIdelInes peraTIon uIdelInes Startup Checks Before Starting the Unit When performing startup and service, always take thorough Before entering fan section, make sure that fan electrical power safety precautions. Only trained, experienced personnel should source is disconnected and locked in the OFF position. perform these functions. -
Page 23: Vfd Setup
peraTIon uIdelInes VFD Setup Fan Wheel Alignment Fans ordered with VFDs that were factory installed are setup Figure 37: Wheel-to-Inlet Tunnel Relationship—Airfoil Type 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 24 peraTIon uIdelInes Table 8: Wheel-to-Inlet Funnel Relationship—Forward Figure 40: Wheel-to-Inlet Funnel Relationship—40 to 60 Curved Type Fan Wheels Belt-Drive Plenum Fan Cross Section Reference Diameter – in . in . (mm) Unit Sizes 003 to 035 9 × 4 0.25 (6.35) 9 ×...
- Page 25 peraTIon uIdelInes Figure 41: Wheel-to-Inlet Funnel Relationship—In-line Table 12: Wheel to Inlet Funnel Relationship—Direct-Drive Fans Class II fans Fan Size – in . Overlap – in . (mm) 0.25 (6.35) 0.25 (6.35) 0.25 (6.35) 0.38 (9.65) 0.38 (9.65) 0.41 (10.41) 0.45 (11.43) 0.50 (12.7) 0.55 (13.97)
-
Page 26: Setscrews
peraTIon uIdelInes Setscrews Table 15: Bearing Collar and Wheel Hub Set Screw Torque Setscrews on MPQ fan wheels must be installed using a (All Fans Except Class II Plenum Fans) calibrated torque wrench to the value listed below, ±5%. The fasteners must be periodically checked to satisfy agency Minimum torque requirements for components on rotating machinery. -
Page 27: Fan Array
Care should be taken when programing and synchronizing unit damage, or personnel injury. the drives in the Daikin Fan Array such that all fans turn at the same speed. Fans running at unequal speeds can produce Figure 43: Daikin Fan Array Configuration vibration and could stall a fan. -
Page 28: Optional Piezometer Ring Airflow Measurement Device
peraTIon uIdelInes Optional Piezometer Ring Airflow Measurement Device Table 16: 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 29 peraTIon uIdelInes Figure 45: 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.
-
Page 30: Operating Limits
peraTIon uIdelInes Operating Limits Do not exceed the operating limits in Table 18 through Table 22. 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 18: Unit Sizes 003 to 035 Fan Operating Limits Forward curved—housed... -
Page 31: Fan Vibration Levels
peraTIon uIdelInes Fan Vibration Levels Vibration Causes 1. Wheel imbalance. Each unit as shipped is trim balanced to operate smoothly. To provide satisfactory operation after shipping and installation, a. Dirt or debris on wheel blades. use the accepted industry guidelines for field balancing fans. b. -
Page 32: Service And Maintenance
25. For applications that are Supply and return fans—Supply and return fan motors should not in the range of the table, contact Daikin. have grease added after every 2000 hours of operation. Using the following procedure, re-lubricate the bearings while the CAUTION motor is warm, but not running. -
Page 33: Fan Drive
ervICe and aInTenanCe Fan Drive Table 26: Recommended Lubricants for Fan Shaft Ball Bearings WARNING Name Temperature Base Thickener NLGI grade Before servicing lock out and tag out all power to the Texaco, 30° to 350°F Parafinic Lithium Premium RB (34°... -
Page 34: Lvp Variable Speed Sheaves
ervICe and aInTenanCe VM and VP Variable Pitch Key Type LVP Variable Speed Sheaves Sheaves Mounting Mounting 1. Slide sheave on motor shaft so that the side of the sheave with setscrew A is next to the motor when 1. Mount all sheaves on the motor or driving shaft with the setscrew A is in the hub or barrel of the sheave. -
Page 35: Mvp Variable Speed Sheaves
ervICe and aInTenanCe MVP Variable Speed Sheaves Adjusting 1. Slack off belt tension if belts have been installed. Mounting 2. Loosen setscrews D. 1. Verify both driving and driven sheaves are in alignment 3. Loosen but do not remove capscrews E. and the shafts are parallel. - Page 36 ervICe and aInTenanCe Table 28: Screw Torque Values Hollow-head set screws only Flat-head Socket-head cap screws Nominal socket screws Lengths equal or greater than dia . For lengths (L) less than dia . screw size (dia—thds/in) Seating torque Seating torque Seating torque Seating torque Seating torque...
-
Page 37: Fan Drive Belt Adjustment
ervICe and aInTenanCe Fan Drive Belt Adjustment Figure 51: Drive Belt Adjustment WARNING Belt span Moving belt and fan can cause severe personal injury or Deflection = death. During installation and filter maintenance: • Verify that the belt and fan guards on plenum fan units are always in place. -
Page 38: Front Load Filter Option
ervICe and aInTenanCe Front Load Filter Option Filter Gauges Front loaded filter options require that the filters be removed Filter gauges indicate pressure drop for installed filters. If and replaced from inside the unit. prefilters are present, the gauge will indicate the pressure drop for both pre-and final filters To remove filters, rotate the wire clips. -
Page 39: Coils
Some products have a higher freezing point in their natural state when mixed with water. 6. Disconnect the fan housing from the fan sled, and Daikin is not responsible for the freezing of coils. bearing support by removing the attaching bolts. WARNING 7. -
Page 40: Removing And Replacing The Coil
ervICe and aInTenanCe Removing the Fan Section Figure 54: Single Coil Top Installation/Removal For plenum fan assemblies, the entire fan cabinet may need to be removed to replace the entire fan assembly depending on the length of the fan section. In some cases, the fan section is not long enough for the assembly to fit out the side of the cabinet. - Page 41 ervICe and aInTenanCe Removing Stacked Coils Removing and Installing Staggered Coils NOTE: Top and bottom stacked coils are held together with Staggered coils have two banks of coils positioned a few steel plate and screws on one side and drain trough inches apart in the direction of airflow.
-
Page 42: Parts, Service And Warranty Procedure
Replacement Parts Warranty When writing to Daikin for service or replacement parts, refer Consult your local Daikin Applied representative for warranty to the model number and serial number of the unit stamped on details. Refer to Form 933-430285Y. To find your local Daikin the serial plate attached to the unit. -
Page 43: Check, Test And Warranty Registration 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 Daikin Applied, Warranty Department Check, test, and start procedure for air handling units with or without heat recovery. - Page 44 D. Check for air bypass around heat wheel............Yes Comments: Performed by: ______________________________________________ Title: ________________________________ Signature: _________________________________________________ Date of start-up: _______________________ Return completed form by mail to: Daikin Applied Warranty Department 13600 Industrial Park Boulevard Minneapolis, MN 55441 or by email to: AAH.Wty_WAR_forms@DaikinApplied.com Please list any additional comments that could affect the operation of this unit;...
-
Page 45: Quality Assurance Survey
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. - Page 46 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.