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Installation and Maintenance Manual IM 777-8

Group:

Applied Air Systems

Part Number:

IM 777

Date:

March 2014

Skyline

™

Outdoor Air Handler

Содержание Skyline IM 777-8

Страница 1: ...Installation and Maintenance Manual IM 777 8 Group Applied Air Systems Part Number IM 777 Date March 2014 Skyline Outdoor Air Handler...

Страница 2: ...s 14 Internal Isolation Assembly Adjustment 18 OSHPD Seismic Anchoring Mounting 20 Electrical Installation 21 Wiring 21 Operation Guidelines 22 Startup Checks 22 Before Starting the Unit 22 VFD Setup...

Страница 3: ...el and are inspected thoroughly before leaving the factory Take care during installation to prevent damage to units 3 Take special care when handling the blower section All fans are dynamically balanc...

Страница 4: ...on galvanized surfaces Belt driven fans Reduce belt tension by at least 50 or remove the belts Remove belts if they will be subjected to temperatures exceeding 85 F to avoid deterioration Remove belt...

Страница 5: ...supplied with VFDs Figure 1 Servicing Space Requirements Figure 2 Service Clearance for Electrical Power Devices Rigging Skyline air handlers ship as separate sections completely assembled or in modu...

Страница 6: ...nt attached on the leaving air side of the shipping section that seals against the frame channel on the entering air side of the adjoining The splice joint is insulated and provides an air tight seal...

Страница 7: ...ping screw to secure the bases together 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 1...

Страница 8: ...he flat head Torx 30 fasteners in the corner of the frame channels Then pull the frame channel out the side Remove any panel screws that are within one inch of the of the frame since they are engaged...

Страница 9: ...available inside the unit for conduit or pipe routing b Do not locate holes in a panel that provides access to key maintenance components such as filters and fan assemblies c Do not locate where the c...

Страница 10: ...and does not interfere with other vital components Duct Connections Use flexible connectors on the outlet and inlet duct connections of all units Do not position down flow fans over air ducts that ar...

Страница 11: ...shaft torque is 205 inches pound Greater rotation or torque can cause equipment damage Face and Bypass Section Mounting Internal and external face and bypass sections are mounted together using the i...

Страница 12: ...ls 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 un...

Страница 13: ...M 777 8 Skyline Air Handler Figure 22 Typical Vestibule Figure 23 Caulking the Vestibule Roof Cap Figure 24 Detail of Mounting Screws Figure 25 Additional Caulking SHOWN SPLICE COLLAR DETAIL A UNIT TO...

Страница 14: ...ply heat to the body of the expansion valve The thermostatic expansion valve must be the external equalizer tube type Connect the 1 4 inch diameter external equalizer tube provided on the coil to the...

Страница 15: ...low Valves Do not use modulating steam valves on high pressure systems Properly size modulating valves Do not undersize Avoid freezing conditions entering air temperatures below 35 F Daikin strongly r...

Страница 16: ...Pressure to 25 psi 5GA or 8GA coils Note that the addition of a vacuum breaker to permit the coil to drain during shutdown 5TA 8TA or 5HA coils Conden sate is lifted to overhead return main 5JA or 8J...

Страница 17: ...o be heated by a hot water coil carefully design the system to provide thorough mixing before air enters the coil To prepare coils for winter operation See Winterizing Water Coils on page 39 Drain Pan...

Страница 18: ...orz H Downblast H Upblast H Unit Sizes 003 035 1 3 75 3 75 4 25 2 4 25 3 75 4 25 3 4 25 3 75 4 25 4 3 75 3 75 4 25 Unit Sizes 040 090 1 6 00 6 75 6 75 2 6 50 6 75 6 75 3 6 50 6 75 6 75 4 6 00 6 75 6 7...

Страница 19: ...Air Handler 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 a...

Страница 20: ...e are to be field drilled Any mounting hardware is to be field supplied Table 6 OSHPD Mounting Attachment Method SDS Attachment System by Others Spacing System Bolted attachment to steel Figure 33 1 9...

Страница 21: ...self will be mounted on the drive side fan panel inside the fan cabinet The external junction box will provide loose wire connection to the VFD and to the motor An external mounted keypad display cont...

Страница 22: ...quipment damage due to loose fasteners represents improper start up and equipment abuse It is not covered by the warranty 1 Check that the unit is completely and properly installed with ductwork conne...

Страница 23: ...Hours of Operation 1 Disconnect and lock electrical power source 2 Check tightness of all bearing wheel and sheave setscrews or capscrews See Table 14 on page 26 3 Recheck belt tension and adjust if n...

Страница 24: ...Funnel Relationship 13 to 36 Belt Drive Plenum Fan Wheel Funnel Parameters in mm Size in A B C 13 0 25 6 35 0 91 23 11 3 50 88 9 15 0 25 6 35 0 91 23 11 3 50 88 9 16 0 25 6 35 0 91 23 11 3 50 88 9 18...

Страница 25: ...12 Wheel to Inlet Funnel Relationship Direct Drive Class II fans Fan Size in Overlap in mm 11 0 25 6 35 12 0 25 6 35 15 0 25 6 35 16 0 38 9 65 18 0 38 9 65 20 0 41 10 41 22 0 45 11 43 24 0 50 12 7 27...

Страница 26: ...II Plenum Fans Only Fan Size Setscrew Size Torque ft lb Aluminum Steel 11 12 13 3 8 19 2 N A 15 3 8 19 2 N A 16 3 8 19 2 N A 18 3 8 19 2 N A 20 3 8 19 2 N A 22 3 8 19 2 N A 24 3 8 19 2 N A 27 3 8 19 2...

Страница 27: ...or is replaced After fan and or motor replacement the block off plate is to be removed and stored outside of the air tunnel The Daikin Fan Array has an optional gravity actuated block off damper These...

Страница 28: ...can be simplified by assuming standard density and assuming funnel dimensions match the drawing dimensions Table 17 shows the factor F for each fan size and type The equation then becomes the followin...

Страница 29: ...ecure tubing to the fan assembly using cable tie mount DCX52 and Cable tie DCX54 as needed Make sure any tubing does not interfere with the fan wheel NOTE Never drill or screw through the inlet funnel...

Страница 30: ...rpm Class I 2077 1875 1691 1479 1328 1209 1073 Maximum rpm Class Il 2703 2413 2199 1928 1730 1579 1401 Table 20 Operating Limits Belt Drive Plenum Fans Fan Operating Limits Belt Drive Plenum Fans Size...

Страница 31: ...tributes to premature fan and motor bearing failure Monitor overall vibration levels every six months of operation An increase in levels is an indication of potential trouble Vibration Causes 1 Wheel...

Страница 32: ...Motor Bearings Mfr Grease NEMA Size Amount to Add oz Texaco Polystar or Polyrex EM Exxon Mobil or Rykon Premium 2 or Penzoil Pen 2 Lube 56 to 140 0 08 140 0 15 180 0 19 210 0 30 250 0 47 280 0 61 320...

Страница 33: ...59 3 to 3 7 16 75 80 0 85 24 10 3 1 2 to 4 85 105 1 5 42 53 Fan Drive WARNING Before servicing lock out and tag out all power to the unit Fans or belts cause severe personal injury or death WARNING D...

Страница 34: ...djustment LVP Variable Speed Sheaves Mounting 1 Slide sheave on motor shaft so that the side of the sheave with setscrew A is next to the motor when setscrew A is in the hub or barrel of the sheave 2...

Страница 35: ...f the driven sheave See Figure 49 2 Verify that all setscrews are torqued to the values shown in Table 28 before starting drive Check setscrew torque and belt tension after 24 hours of service Adjusti...

Страница 36: ...lbs Seating torque in lbs Seating torque in lbs Seating torque in lbs Seating torque in lbs Length L in lbs Seating torque in lbs 1 4 20NC 150 12 5 100 87 7 3 3 16 50 5 16 11NC 305 25 4 200 165 13 8 1...

Страница 37: ...cause slippage 5 Inspect V drive on a periodic basis Adjust tension if the belt is slipping Do not apply belt dressing This can damage the belt and cause early failure Tension Measurement Procedure 1...

Страница 38: ...gauge is used the prefilters can be removed to check the pressure drop of the final filters Figure 53 Filter Gauge Table 30 Filter Pressure Drops Bag filters DriPak 2000 Efficiency 45 65 85 95 Rated...

Страница 39: ...o prevent freeze up 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 responsib...

Страница 40: ...iping and remove the brass plugs for the vents and drains located in the connections 2 Remove all screws and remove the access panel 3 Remove the screws holding the coil in place 4 Lift and pull the c...

Страница 41: ...he coil is in place bolt the coil to the section 4 Caulk the mounting surface of the steel plate and install the plate on the coils 5 Caulk the mounting surface of the drain trough and install the dra...

Страница 42: ...turn Material Procedure Defective material may not be returned without permission of authorized factory service personnel of Daikin in Minneapolis Minnesota 763 553 5330 A Return Goods tag must be inc...

Страница 43: ...____________ RF VFD model number __________________________________________________ Serial number __________________________ Circle Yes or No If not applicable to the type of unit circle N A I INITIAL...

Страница 44: ...3 ___________ ____________ ____________ ___________ ___________ ____________ G FLA L1 ___________ L2____________ L3 ___________ H Operate electric heat with fans off Electric heat must cycle on high l...

Страница 45: ...______________________ 2 How would you rate the overall appearance of the product i e paint fin damage etc Excellent Good Fair Poor 3 Did all sections of the unit fit together properly Yes No N A 4 Di...

Страница 46: ...ndard terms and conditions of sale including Limited Product Warranty Consult your local Daikin Applied representative for warranty details Refer to Form 933 430285Y To find your local Daikin Applied...

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