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Daikin

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.

Warranty

All

Daikin

equipment is sold pursuant to its standard terms and conditions of sale, including Limited Product

Warranty. Consult your local

Daikin

Representative for warranty details. Refer to Form 933-430285Y. To find

your local

Daikin

Representative, go to www.

DaikinApplied

.com.

Aftermarket Services

To find your local parts office, visit www.

DaikinApplied

.com or call 800-37PARTS (800-377-2787). To find

your local service office, visit www.

DaikinApplied

.com or call 800-432-1342.

This document contains the most current product information as of this printing. For the most up-to-date product

information, please go to www.

DaikinApplied

.com.

Daikin Applied

800.432.1342

www.DaikinApplied.com

Содержание OAH 003G

Страница 1: ...Installation and Maintenance Manual IM 777 7 Skyline Air Handler Group Applied Air Systems Part Number IM 777 Date November 2011 2011 Daikin Models OAC OAH 003G 090G...

Страница 2: ...eating Coils 14 Drain Pan Traps 14 Internal Isolation Assembly Adjustment 15 Electrical Installation 17 Wiring 17 Operation Guidelines 19 Startup Checks 19 Before Starting the Unit 19 VFD Setup 20 Fan...

Страница 3: ...before leaving the factory Rough handling can cause misalignment or a damaged bearings or shaft Carefully inspect fans and shaft before unit installation to verify this has not happened Note Screws bo...

Страница 4: ...rfaces 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 guard when adjus...

Страница 5: ...nits are provided with a factory installed base rail and can be lifted using the 2 diameter lifting holes located in the corners of each shipping section To prevent damage to the unit cabinetry use sp...

Страница 6: ...lodged during shipping restore it to its designed position Shipping Sections 1 Caulk all assembly joints of the unit Before joining the sections apply at least 1 4 inch diameter bead of sealant to the...

Страница 7: ...ng included in the assembly kit Figure 8 Frame Channel Stiffener Plates Skyline Plus Units Only Figure 9 Internal Fastening Figure 10 D Gasket Placement Detail Skyline Plus Units Only 1 Check that the...

Страница 8: ...on one side of the unit If requested on order doors can be provided on both sides of the unit Optional service doors are available for most section types and are provided based on customer request Fa...

Страница 9: ...age can occur If larger heavier components require mounting on unit panels use through bolts with flat washers through both outer and inner panels To maintain panel integrity seal both ends with an in...

Страница 10: ...ions are made for the location of these actuators due to the number of options and arrangements available and the variety of specific applications Typically actuators are mounted inside the cabinet Pr...

Страница 11: ...r units that include a piping vestibule cut the openings for routing the field piping as required in the field Carefully seal passages cut through the panels to prevent air leakage A single metal thic...

Страница 12: ...pen to the atmosphere and the trap design should allow venting of large quantities of air Traps Note Do not place steam traps outdoors Size traps in accordance with the manufacturers recommendations M...

Страница 13: ...eturn main 12 min Vacuum breaker 1 2 check valve Steam main Return main 12 min Full size of return conn Check Valve Strainer Gate Valve Control valve modulating two position Float and thermostatic tra...

Страница 14: ...l drain pan trap to allow condensate to drain freely On both blow through and draw through units the trap depth and the distance between the trap outlet and the drain pan outlet must be twice the stat...

Страница 15: ...t panel opening If adjustment is required loosen the cap screw on top of the isolator assembly Turn the adjustment nut below the fan frame to lower or raise the fan motor and frame assembly Retighten...

Страница 16: ...l t o r p o t o n n u m b e r D m H S p r n g h e g h t d j u t m e n t c r e w S p r n g h e g h t d j u t m e n t c r e w S h p p n g h o l d d o w n c r e w S h p p n g b r c k e t D e t l A S h p...

Страница 17: ...gy storing components that have been furnished and mounted by either Daikin or by others refer to the specific manufacturer s literature for allowable waiting periods for discharge of capacitors Verif...

Страница 18: ...n the exterior of the fan section When multiple fan sections are provided with multiple VFDs they must be set up so that the fans always start simultaneously and are set to ramp up and down together D...

Страница 19: ...et couper la tension WARNING Fire electric shock hazard Can cause property damage personal injury or death Wire fan power supply and ground motor frame in accordance with local electric codes AVERTIS...

Страница 20: ...rtain to retain sheave alignment Fan Wheel Alignment Figure 29 Wheel to Inlet Tunnel Relationship Airfoil Type Fan Wheels Housed Note 1 To obtain rated air performance dimensional relationship must be...

Страница 21: ...lenum Fan Wheel Funnel Parameters Size A B C 13 0 25 0 91 3 50 15 0 25 0 91 3 50 16 0 25 0 91 3 50 18 0 38 0 86 3 88 20 0 42 1 11 3 88 22 0 45 1 11 3 88 24 0 51 1 11 3 88 27 0 55 1 36 4 50 30 0 62 1 3...

Страница 22: ...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 22 30 1 2 41 7 55 33 1...

Страница 23: ...1875 1691 1479 1328 1209 1073 Maximum rpm Class Il 2703 2413 2199 1928 1730 1579 1401 Table 17 Operating Limits Belt Drive Plenum Fans Fan Operating Limits Belt Drive Plenum Fans Size 13 15 16 18 20 2...

Страница 24: ...on of potential trouble Vibration Causes 1 Wheel imbalance a Dirt or debris on wheel blades b Loose set screws in wheel hub or bearing to shaft c Wheel distorted from overspeed 2 Bent shaft 3 Drive fa...

Страница 25: ...s are supplied with grease fittings or zerks for ease of lubrication with hand or automatic grease guns Always wipe the fitting and grease nozzle clean CAUTION Bearing overheating potential Can damage...

Страница 26: ...g or decreasing the pitch diameter of the sheave by half or full turns as required Readjust belt tension before starting drive 6 To provide the same pitch diameter adjust both halves of the two groove...

Страница 27: ...lts over grooves See Fan Drive Belt Adjustment page 30 10 Before starting the drive ensure that all keys are in place and all setscrews and all capscrews are tight Check and retighten all screws and r...

Страница 28: ...a Do not open B sheaves more than 4 3 4 turns for the A belts or 6 turns for the B belts b Do not open C sheaves more than 9 1 2 turns c Do not open 5V sheaves more than 6 turns d Do not open 8V sheav...

Страница 29: ...parallel A d j u t a b l e C e n t e r F l a n g e F x e d C e n t e r F l a n g e S t a t o n a r y E n d F l a n g e C a p c r e w D o N o t R e m o v e 2 L o c k n g S e t c r e w A F l a t h e a d...

Страница 30: ...ter the filter compartment until the fan is completely stopped Use approved equipment for reaching filters located above normal reach Do not step on filter frames or unit components Floor surfaces mus...

Страница 31: ...the final filters Figure 41 Filter Gauge F l t e r F r a m e R o t a t e W r e C l p P r e f l t e r F n a l F l t e r Table 27 Filter Pressure Drops Bag filters DriPak 2000 Efficiency 45 65 85 95 Rat...

Страница 32: ...not responsible for the freezing of coils Removing and Replacing Components See Access Doors and Panels page 8 for instructions on removing panels and opening fan access doors to remove or replace co...

Страница 33: ...ocated 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 coil out the side Installing Single Coils 1 Slide the coil t...

Страница 34: ...ce 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 drain trough on the...

Страница 35: ...s 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 fa...

Страница 36: ...rned material 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 Transp...

Страница 37: ...Yes No N A D Have the hold down bolts been backed off on spring mounted fan isolators Yes No N A E With power off do fans turn freely by hand Yes No N A F Electrical service corresponds to unit namepl...

Страница 38: ...N A VII HEAT RECOVERY A Heat wheel rotates freely Yes No N A B Heat wheel VFD operates properly Yes No N A C Heat wheel VFD model _____________________ serial _____________________ N A D Check for ai...

Страница 39: ...binet have any air leakage Yes No N A Location on unit ___________________________________________________________________________ 5 Were there any refrigerant leaks Yes No N A Shipping Workmanship De...

Страница 40: ...tions of sale including Limited Product Warranty Consult your local Daikin Representative for warranty details Refer to Form 933 430285Y To find your local Daikin Representative go to www DaikinApplie...

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