Daikin Skyline OAH003GDAC Installation And Maintenance Manual Download Page 1

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Installation and Maintenance Manual IM 777-17

Group:

Applied Air Systems

Part Number:

IM 777

Date:

December 2019

Skyline

Outdoor Air Handler

Summary of Contents for Skyline OAH003GDAC

Page 1: ...Installation and Maintenance Manual IM 777 17 Group Applied Air Systems Part Number IM 777 Date December 2019 Skyline Outdoor Air Handler...

Page 2: ...tment 24 OSHPD Seismic Anchoring Mounting 26 Electrical Installation 27 Wiring 27 Operation Guidelines 29 Startup Checks 29 Before Starting the Unit 29 VFD Setup 30 Fan Startup 30 Fan Wheel Alignment...

Page 3: ...section NOTE A special 30 Torx bit is required for assembly Identification Every shipping section includes a nameplate identifying the customer tagging information unit serial number unit order numbe...

Page 4: ...if any moisture is present A field supplied desiccant bag may be hung in the interior of the unit to minimize corrosion in humid storage environments Do not stack sections or store anything on top of...

Page 5: ...when supplied with VFDs Figure 1 Servicing Space Requirements Figure 2 Service Clearance for Electrical Power Devices Rigging WARNING Use all lifting points Improper lifting can cause severe personal...

Page 6: ...it is shipped in more than one shipping section rig each section into position separately Shipping sections are provided with a connection splice joint attached to the cabinet which seals against the...

Page 7: ...on the top two on the bottom on each side of the unit which are factory supplied in the splice kits with each unit Complete each section top and bottom before attaching additional sections Figure 8 b...

Page 8: ...lk the bottom of the base rail at the section split This seam acts as a weep hole 5 After sections are seated tightly together add caulk to fill the seam between the roof panels at each end Slide the...

Page 9: ...e panels Removing all flat head fasteners along the sides of a panel allow it to be removed Fan and filter sections are always provided with a service door on one side of the unit If requested on orde...

Page 10: ...ere is no exposed insulation Field Mounting Junction Boxes and Other Components For field mounting 4 4 or smaller junction boxes to the standard panel exterior use a minimum quantity of four 3 16 diam...

Page 11: ...s STEP 1 At the inside corner of each frame are 4 tabs 2 per side Place a leg extension over the 4 tabs as shown in Figure 18 then pull back on the leg extension locking it into place Figure 19 Repeat...

Page 12: ...that the upper filters can rest on the lower filters Figure 22 Figure 21 Frame with Leg Extensions Installed Figure 22 Insert HEPA Filter into Frame until the Gasket Comes in Contact with the Holding...

Page 13: ...straight to step 5 STEP 5 The prefilter holding frame should be placed directly in front of the HEPA filter as shown in Figure 27 Figure 28 Positioning of the prefilter frame STEP 6 Place a latch so t...

Page 14: ...n Cap Screw to 1 4 of the Coupling Figure 31 Tighten until Latch and Coupling Meet Once all four corners have been tightened the HEPA filter should now be properly seated and sealed Repeat the process...

Page 15: ...lation add the appropriate prefilter latches to the prefilter holding frame Once latches are installed place the prefilter in the frame secure with the latches and the installation is complete Repeat...

Page 16: ...tself do not connect ductwork directly to the unit roof panel only Seal the ductwork to the opening the unit itself and to the unit roof panel to prevent moisture intrusion into the unit or building N...

Page 17: ...EPTION For the angled economizer the fresh air and return air dampers must always be driven by separate actuators NOTE Damper blades are at full flow when open to 70 degrees Do not open blades further...

Page 18: ...e full open position before the fan is started Do not start a fan with the damper located at the inlet with the damper fully or partially closed This can cause airflow vibration and sound problems tha...

Page 19: ...40 Detail A 2 Follow the instructions to attach rigging and lift the vestibule vertically Remove the shipping pallet 3 Apply a continuous bead of caulking to the vertical flange of the vestibule roof...

Page 20: ...AIR HANDLER 20 www DaikinApplied com Mechanical Installation Figure 42 Caulking the Vestibule Roof Cap Figure 43 Detail of Mounting Screws Figure 44 Additional Caulking UNIT TO VESTIBULE SPLICE DETAIL...

Page 21: ...iping see Figure 45 Steam supply and steam return connections typically are male NPT iron pipe and are labeled on the end panel of coil section Connections extend through the coil section end panel Wh...

Page 22: ...rtup admit steam to coil ten minutes before admitting outdoor air Close fresh air dampers if steam supply pressure falls below the minimum specified Pipe Chases Follow the these guidelines when routin...

Page 23: ...i Low 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...

Page 24: ...re to 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 69 Drain...

Page 25: ...tom Horz 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 7...

Page 26: ...ical Installation Figure 50 Removing Motor Behind Shipping Brackets Figure 51 Removing Motor Beside Shipping Brackets Figure 52 Plenum Fan Typical Shipping Brackets Shipping hold down nut and bolt Rem...

Page 27: ...frame 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 52...

Page 28: ...unit must also penetrate the drip pan If holes are cut in the drip pan seal them to prevent moisture leakage Figure 56 Electrical Conduit Location Electrical service to each fan must correspond to th...

Page 29: ...s can result in uneven airflow that can cause performance sound and vibration problems that can lead to failure Provided that the fan is capable of running fast enough the motor is sized appropriately...

Page 30: ...arranty Before entering fan section make sure that fan electrical power source is disconnected and locked in the OFF position 1 Check that the unit is completely and properly installed with ductwork c...

Page 31: ...48 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 34 3 Recheck belt tension and adjust...

Page 32: ...nlet 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...

Page 33: ...Table 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...

Page 34: ...ass 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...

Page 35: ...st fan motor the block off plate is installed on the non functional fan to prevent air re circulation This is designed to be a temporary measure unit this fan and or motor is replaced After fan and or...

Page 36: ...A Inlet funnel throat area square feet from Table 17 and Table 19 P The differential in static pressure from the piezometer ring and the inlet pressure tap inches w g Air density pounds mass cubic fo...

Page 37: ...ensity Method Daikin Piezo Ring DDPL Size Free Inlet F Ducted Inlet F Area A 12 1004 66 1016 46 0 344 15 1261 99 1260 20 0 439 16 1526 96 1572 35 0 552 18 1675 69 1672 77 0 721 20 2117 33 2110 61 0 86...

Page 38: ...el Secure 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 fu...

Page 39: ...e control panel can be ordered for remote mounting For remote mounted panels the control wiring for the individual fans will be provided however the control wiring to connect the final fan to the cont...

Page 40: ...Operation Guidelines Figure 69 Single Fan Control Panel High Voltage Wiring in red Low Voltage Wiring in blue Figure 70 Required Molex Plug and Crimp Terminals Figure 71 Molex Plug Crimp Terminal Loca...

Page 41: ...OOR AIR HANDLER Figure 73 Control Signal Figure 74 High Voltage Wiring Figure 75 Gen 2 Figure 76 YY Figure 77 Block Off Plate Installation YY Figure 78 Gen 3 003 BLOCK OFF PLATE KIT PART NO FAN SIZE 9...

Page 42: ...he following equation is used to measure the flow for non standard density ACFM C1 A P where A Inlet funnel throat area square feet from Table 21 P The differential in static pressure from the piezome...

Page 43: ...imum rpm Class I 2077 1875 1691 1479 1328 1209 1073 Maximum rpm Class Il 2703 2413 2199 1928 1730 1579 1401 Table 24 Operating Limits Belt Drive Plenum Fans Fan Operating Limits Belt Drive Plenum Fans...

Page 44: ...e contributes 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 W...

Page 45: ...NING All field gas piping must be pressure leak tested prior to operation NEVER use an open flame to check for leaks Use a soap solution or other leak detecting solution Gas pressure to appliance cont...

Page 46: ...on flue gases Gas supply piping and connections Condensate Drain Lines WARNING Failure to connect condensate drains can result in accumulation of condensate during heater operation and result in hazar...

Page 47: ...by flame sensor the spark is shut off immediately and gas valve s and combustion blower remain energized 10 During heating operation the thermostat pressure switch and main burner flame are constantly...

Page 48: ...1 2 TR1 TIMER RELAY TERMINAL CONNECTION 1 2 3 4 6 AIR SWITCH HI 3 ORG ORG YEL BLU TIMER RELAY TR1 090LH15 Factory Jumper 4 115 VAC BLK WHT BLU External Safety Interlocks YEL GRY PUR 40VA ORG ORG ROLL...

Page 49: ...l open or close modulating the gas input between low and mid fire 14 If the signal is 5 1 VDC or higher the SC40 relay R1 is de energized and ID Fan goes to high speed 15 Provided the High Air Switch...

Page 50: ...24V APS PSW T Stat Sense 3 PUR HI LIMIT PUR APS 1 AIR SWITCH LO ORG ORG ORG ORG ROLL OUT SWITCH ROLL OUT SWITCH 2 Maxitrol SC40 T1 T2 T3 T4 T5 T6 T7 T8 COM T9 HAPS EST R1 24V E Valve T10 T11 T1 T2 T S...

Page 51: ...lit if ID Fan pressure is sufficient to close APS 2 The modulating valve will be powered proportional to the analog input voltage signal and modulating gas input from 10 to 30 of total heater input 1...

Page 52: ...or within 10 seconds the spark and gas valve will be de energized A 15 second interpurge period begins and the combustion blower continues to run After the inter purge period another ignition trial wi...

Page 53: ...4 T3 T9 T8 T12 T13 T11 T10 PUR W PUR W T2 T1 5 6 RED W RED W 0 10 VDC Input RED BLK BLK RED M420 Mod Valve BLK YEL 24V R C 3 4 40VA BLU XFMR 2 BLU WHT FLAME SENSOR ROR IGNITER SPARK T2 T1 SC30 SM2AN P...

Page 54: ...eration Additional slave furnaces have two stage controls which are activated by relays on the staging control to meet higher heating requirements As slave units are brought on line the modulating hea...

Page 55: ...7 8 11 6 9 24V COM 120V 8 Provide Disconnect and Overload Protection as required 120V 1 60 5 15 BLK BLK BLK 1 1 1 2 2 2 5 7 7 3 120 V Alarm Output BK W 6 4 2 1 0 4 2 1 0 BLOWER SCEBM 2 13 WHT 14 RED...

Page 56: ...rol Panel terminal N Factory Wiring Customer Wiring Fuse 24V 24V BLU BLU T1 T2 System Heat Enable Contact Customer Safety Interlocks WC HDR HXT FDP 12A VCB 1M 3SL Distribution Panel Terminal Connectio...

Page 57: ...talled in accordance with the applicable provincial regulations Furthermore this document is not to relinquish the responsibility of the installer from the correct application of the equipment nor the...

Page 58: ...can cause property damage injury or death Read the installation operating and maintenance instructions thoroughly before installing or servicing this equipment The use and storage of gasoline or othe...

Page 59: ...0 0 0 0 0 M s e t t i m e d a t e N O P C O 0 0 0 oF L o a d i n g s e l f t e s t p l e a s e w a i t B u r n e r I n p u t S i g n a l 0 H e a t e r E n a b l e I n p t O F F B u r n e r E n a b l...

Page 60: ...irst screen see 3 14 The Alarm button will light up red when the unit is in alarm 15 To view the alarms a Push the Alarm Bell button and then scroll using the up and down arrow buttons to view all the...

Page 61: ...BMS Address Description Direction Variable name 9 Profile pressure 1000 R profilePressure 95 Current minute R CURRENT_MINUTE 96 Current hour R CURRENT_HOUR 97 Current year R CURRENT_YEAR 98 Current m...

Page 62: ...Fan 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...

Page 63: ...is operating Moving parts and strong suction forces can cause severe personal injury or death Upon completion of the air balance replace the variable pitched motor sheave with a properly sized fixed...

Page 64: ...ave Adjustment 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 shea...

Page 65: ...ne of the driven sheave See Figure 88 2 Verify that all setscrews are torqued to the values shown in Table 35 before starting drive Check setscrew torque and belt tension after 24 hours of service Adj...

Page 66: ...in 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...

Page 67: ...can 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 Procedur...

Page 68: ...ilter gauge is used the prefilters can be removed to check the pressure drop of the final filters Figure 95 Filter Gauge Table 37 Filter Pressure Drops Bag filters DriPak 2000 Efficiency 45 65 85 95 R...

Page 69: ...small amount of antifreeze solution remaining in the coil must always be concentrated enough to prevent freeze up NOTE Carefully read instructions for mixing antifreeze solution used Some products ha...

Page 70: ...all piping 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...

Page 71: ...nce the 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 th...

Page 72: ...erial 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 included wi...

Page 73: ...____ State _________________________________ Purchasing contractor ___________________________________________________________________________________________ City ____________________________________...

Page 74: ...N A J Fill the drain pan Does water drain freely Yes No N A K Is the unit mounted level Yes No N A II FAN DATA A Check rotation of supply fan s Yes No N A B Voltage at supply fan motor s 1 2_________...

Page 75: ...urn fan motor amp draw s per phase L1 _____________ L2 _____________ L3 _____________ Fan array units only L1 _____________ L2 _____________ L3 _____________ L1 _____________ L2 _____________ L3 _____...

Page 76: ...2 Stage 3 Stage 4 Stage 5 Stage 6 Phase L1 ___________ ____________ ____________ ___________ ___________ ____________ Phase L2 ___________ ____________ ____________ ___________ ___________ __________...

Page 77: ...TEST START Specifications For gas see Forced Draft Gas Burner Installation and Maintenance Bulletin IM 684 and IM 685 A Gas Furnace Model no __________________ B Gas Burner Model no _________________...

Page 78: ..._______________________ Startup date ___________________________ Return completed form by mail to Daikin Warranty Department 13600 Industrial Park Boulevard Minneapolis MN 55441 or by email to AAH Wty...

Page 79: ..._______ 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 Did the cabinet h...

Page 80: ...nt to its standard terms and conditions of sale including Limited Product Warranty Consult your local Daikin Applied Representative for warranty details To find your local Daikin Applied Representativ...

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