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Table 27: Screw Torque Values

Nominal

Screw Size

(dia–thds/in)

Socket Head Cap Screws

Flat Head Socket Screws

Hollow Head Set Screws Only

Seating Torque

Lengths Equal or Greater Than Dia .

For Lengths (L) Less Than Dia .

Seating Torque

Length (L)

Seating Torque

(in–lbs)

(in)

(in–lbs)

1/4–20NC

150

12 .5

100

7 .3

3/16

5/16–11NC

305

25 .4

200

165

13 .8

1/4

3/8–16NC

545

45 .4

350

290

24 .2

1/4, 5/16

150, 250

1/2–13NC

1300

108 .3

N/A

620

51 .7

N/A

5/8–11NC

N/A

1225

102 .1

N/A

Figure 55: MVP Sheave Adjustment

Capscrews

(Do Not Remove)

Split Taper

Bushing

Stationary

End-Flange

Adjustable

Center-Flange

Fixed

Center-Flange

Inner

Locking Ring

Outer

Locking Ring

Holes (3) for

Spanner

Wrench or Drift

Flathead Socket

Screws (Do Not

Remove)

Locking

Setscrews “A” (2)

Motor

Must be

parallel

Adjustable

Sheave

Center lines

must coincide

Bearing

Must be

parallel

aInTenanCe

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IM 672-11 • VISION AIR HANDLING UNIT

Содержание Vision CAH 003-090 C

Страница 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...

Страница 2: ...g Mounting 26 Electrical Installation 27 Wiring 27 Operation 28 Startup Checks 28 VFD Setup 29 Fan Startup 29 Fan Wheel Alignment 29 Fan Array 33 Optional Piezometer Ring Airflow Measurement Device 34...

Страница 3: ...the factory Take care during installation to prevent damage to units 3 Take special care when handling the blower section All fans are dynamically balanced before leaving the factory Rough handling c...

Страница 4: ...nsion 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 adjusting belts Reduce belt tension prior t...

Страница 5: ...obtained through the access doors or by removing panels Fan and filter sections are always provided with a service door on one side of the unit If requested doors can be provided on both sides of the...

Страница 6: ...e to the unit cabinetry use spreader bars Position spreader bars to prevent cables from rubbing the frame or panels Before hoisting into position test lift for stability and balance Avoid twisting or...

Страница 7: ...are not installed it is acceptable to lift from the shipping brackets on the fan Figure 8 shows dual fans being lifted in a similar manner as the single direct drive fan An eight point lift must be u...

Страница 8: ...of air flow Pull sections together to fasten Use a furniture clamp or straps and a ratchet to help pull the sections together securely Figure 10 2 If the unit has a factory installed base rail first f...

Страница 9: ...are fastened together at the four bottom corners of the mating edge To fasten the corners located on the end of the unit where bottom section and top section walls are flush with each other remove th...

Страница 10: ...on Joining Side by Side Heatwheel Section Joining The side by side heatwheel will have two individual sections parallel in the direction of airflow to be attached to either side Each section will atta...

Страница 11: ...ction Mounting If desired shipping sections can be fastened together internally To fasten internally run field provided 10 sheet metal screws or drill screws 4 long maximum through the interior frame...

Страница 12: ...en a unit is unitized ships in one piece channel support each component under the unit width Figure 21 NOTE The supporting angle iron must fully support the 2 frame channel at each section joint When...

Страница 13: ...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 into the gasketed flange of the frame Figure 23...

Страница 14: ...ecurely so that it is airtight watertight and that there is no exposed foam insulation Figure 25 Cutting Sealing Injected Foam Insulated panels Field Mounting Junction Boxes and Other Components For f...

Страница 15: ...ass Duct Assembly Sizes 040 to 090 When unit sizes 040 to 090 are ordered with external face and bypass the bypass duct ships separately and must be attached to the unit in the field The joining of th...

Страница 16: ...e are fitted together fasten the joining plates to the corners in the unit exterior 4 If a damper was ordered assemble it to the section see Multizone Damper Assembly and Figure 29 NOTE Verify that th...

Страница 17: ...ell arms are 45 from the vertical center The hot deck closes when the bell arms are 45 clockwise from the vertical center b Three deck zone dampers The cold deck closes when the bell arms are 45 clock...

Страница 18: ...hood Figure 32 There are two options for gaining access to the return air damper drive shaft 1 If the unit has a housed return fan or plenum exhaust fan an access section should be located immediatel...

Страница 19: ...tube provided on the coil to connection on expansion valve Use care when piping the system to see that all joints are tight and all lines are dry and free of foreign material For typical refrigerant...

Страница 20: ...rly size modulating valves Do not undersize Freezing conditions entering air temperatures below 35 F Daikin strongly recommends 5JA 8JA 5RA and 8RA coils Supply 5 psi steam to coils at all times Do no...

Страница 21: ...o permit the coil to drain during shutdown 5TA 8TA or 5HA coils Conden sate is lifted to overhead return main 5JA or 8JA coil Installed in series Note that each coil must have a separate control valve...

Страница 22: ...not use hot water coils with entering air below 40 F If fresh air and return air are to be heated by a hot water coil carefully design the system to provide thorough mixing before air enters the coil...

Страница 23: ...3 75 4 25 Unit Sizes 040 090 1 6 00 6 00 6 50 2 6 50 6 00 6 50 3 6 50 6 00 6 50 4 6 00 6 00 6 50 Table 2 Motor Behind Fan Spring Mount Adjustments Spring Mount Adjustment at Rest Isolator Position Top...

Страница 24: ...Figure 36 Removing Motor Behind Shipping Brackets Figure 37 Removing Motor Beside Shipping Brackets IM 672 11 VISION AIR HANDLING UNIT 24 www DaikinApplied com Mechanical Installation...

Страница 25: ...an Typical Shipping Brackets Shipping hold down nut and bolt Remove and discard 4 places Shipping bracket Remove and discard 4 places Mechanical Installation www DaikinApplied com 25 IM 672 11 VISION...

Страница 26: ...SHPD Mounting Attachment Method SDS Attachment System by Others Spacing System Bolted attachment to steel Figure 39 1 93 48 5 8 DIA SAE Grade 5 Welded attachment to steel Figure 40 1 84 48 3 16 Weld L...

Страница 27: ...table wire nuts or connectors for the gauge wires provided For units provided with a disconnect switch or starter field wiring will be terminated to lugs Wire size and lug torque requirements are show...

Страница 28: ...ed and locked in the OFF position 1 Check that the unit is completely and properly installed with ductwork connected 2 Check that all constru tion debris is removed and filters are clean 3 Check that...

Страница 29: ...Inlet Funnel Relationship Fan Wheels Housed Table 7 Wheel to Inlet Funnel Relationship Fan Wheels Housed Airfoil1 in Unit sizes 003 to 035 Unit sizes 040 to 090 Diameter A2 mm B3 mm Diameter A2 mm B3...

Страница 30: ...eel to Inlet Funnel Relationship 40 to 60 Belt Drive Plenum Fan Wheel Funnel Parameters Size A B C 40 0 82 2 00 4 88 44 0 91 2 25 5 50 49 1 00 2 50 5 50 54 1 10 2 50 5 50 60 1 23 3 00 5 50 Setscrews o...

Страница 31: ...eel to Inlet Funnel Relationship Direct Drive Fans Only Class II fans Fan Size Overlap in 11 0 25 12 0 25 15 0 25 16 0 38 18 0 38 20 0 41 22 0 45 24 0 50 27 0 55 30 0 61 33 0 67 36 0 75 40 0 82 44 0 9...

Страница 32: ...3 8 19 2 22 30 1 2 41 7 55 33 1 2 41 7 55 36 1 2 41 7 55 40 1 2 41 7 55 44 1 2 41 7 55 49 1 2 41 7 55 54 1 2 41 7 55 60 3 4 115 150 Table 14 Bearing Collar and Wheel Hub Set Screw Torque All Fans Exce...

Страница 33: ...t air re circulation This is designed to be a temporary measure unit this fan and or motor is replaced After fan and or motor replacement the block off plate is to be removed and stored outside of the...

Страница 34: ...sions match the drawing dimensions Table 16 shows the factor F for each fan size and type The equation then becomes the following For standard air 0 075 lb ft3 ACFM F P where F factor from Table 2 P T...

Страница 35: ...e DCX54 as needed Make sure any tubing does not interfere with the fan wheel NOTE Never drill or screw through the inlet funnel Secure tubing to the fan assembly using cable tie mount DCX52 and Cable...

Страница 36: ...1620 1465 1329 1202 Max RPM Class IlI 4000 4000 3887 3735 3409 3065 2780 2423 2182 1984 1759 1598 1447 1314 1178 1071 Table 21 Fan Operating Limits Inline Fans Twin Fans Inline Fans Twin Fans Diamete...

Страница 37: ...greasing instructions are located on a tag attached to the motor If special lubrication instructions are on the motor they supersede all other instructions Fan Shaft Bearings CAUTION For safety stop r...

Страница 38: ...ical power disconnected locked and tagged out measure the diameter of the V belt outer surface where it passes around the sheave pitch diameter Calculate fan speed from the motor nameplate rpm Measure...

Страница 39: ...n Drive Belt 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 retension belts after approximately 24 hour...

Страница 40: ...eter can be obtained within the sheave range One complete turn of the outer locking ring changes the pitch diameter 0 233 5 Do not open sheaves more than the following a Do not open B sheaves more tha...

Страница 41: ...165 13 8 1 4 90 3 8 16NC 545 45 4 350 290 24 2 1 4 5 16 150 250 1 2 13NC 1300 108 3 N A 620 51 7 N A N A 5 8 11NC N A N A N A 1225 102 1 N A N A Figure 55 MVP Sheave Adjustment Capscrews Do Not Remove...

Страница 42: ...belt is slipping Do not apply belt dressing This can damage the belt and cause early failure Tension Measurement Procedure 1 Measure the belt span Figure 56 2 Place belt tension checker squarely on o...

Страница 43: ...of the final filters Figure 58 Filter Gauge Table 29 Filter Pressure Drops Bag filters DriPak 2000 Efficiency 45 65 85 95 Rated velocity FPM 625 500 500 500 Initial pressure drop 0 20 0 26 0 21 0 30...

Страница 44: ...solution using a small circulating pump and again thoroughly drain Check freezing point of antifreeze before proceeding to next coil Due to a small amount of water always remaining in each coil there...

Страница 45: ...d out the discharge side of the cabinet Removing and Replacing the Coil The coil can be removed by the side top or a combination of both The size and configuration of the coil affects how the coil can...

Страница 46: ...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 coils 6 Caulk the seams between the coil casings and blockoffs 7 Con...

Страница 47: ...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 malfunc...

Страница 48: ...the returned 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 ta...

Страница 49: ...________________ Purchasing contractor ___________________________________________________________________________________________ City ________________________________________________________________...

Страница 50: ...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 Yes No N A B Voltage at supply fan motor 1 2_____________ V 2...

Страница 51: ...Amp draw across each phase at each heating stage Stage 1 Stage 2 Stage 3 Stage 4 Stage 5 Stage 6 Phase L1 ___________ ____________ ____________ ___________ ___________ ____________ Phase L2 __________...

Страница 52: ...tion and Maintenance Bulletin IM 684 and IM 685 A Gas Furnace Model no __________________ B Gas Burner Model no ___________________ Serial no ___________________ C Gas Type firing Single Stage _______...

Страница 53: ...______________________________ Startup date ___________________________ Return completed form by mail to Daikin Warranty Department 13600 Industrial Park Boulevard Minneapolis MN 55441 or by email to...

Страница 54: ..._________________________________________________________ 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 fi...

Страница 55: ...IM 672 11 VISION AIR HANDLING UNIT 55 www DaikinApplied com Table of Contents...

Страница 56: ...IM 672 11 VISION AIR HANDLING UNIT 56 www DaikinApplied com Table of Contents...

Страница 57: ......

Страница 58: ...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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