SPX Cooling Technologies Marley MH 05-116E Скачать руководство пользователя

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When the use of industrial antifreeze solutions is not possible, the system
must be operated to meet both of the following conditions.

1. Maintain sufficient flow rate through the coil.

2. Maintain sufficient heat load on the process fluid. Fluid exiting the

coil must be maintained at or above 45°F. Cycling of the recirculation
pump should not be used to control process temperatures.

Draining the coil is not acceptable as a normal method of freeze
protection—draining promotes corrosion inside the coil tubes. Drain-
ing is acceptable in an emergency if the coil is not protected by an
antifreeze solution.

It is recommended that you discuss your freeze prevention options with
your local Marley sales representative.

Operation

Model

Coil Volume

US Gallons

Model

Coil Volume

US Gallons

MHF702__061

MHF705__061

235

MHF702__081

MHF705__081

315

MHF702__101

105

MHF705__101

390

MHF702__121

125

MHF705__121

465

MHF702__062

MHF705__062

285

MHF702__082

100

MHF705__082

380

MHF702__102

120

MHF705__102

470

MHF702__122

150

MHF705__122

565

MHF703__061

MHF706__061

390

MHF703__081

115

MHF706__081

500

MHF703__101

140

MHF706__101

610

MHF703__121

170

MHF706__121

725

MHF703__062

100

MHF706__062

475

MHF703__082

130

MHF706__082

610

MHF703__102

165

MHF706__102

750

MHF703__122

200

MHF706__122

885

MHF704__061

160

MHF707__061

450

MHF704__081

210

MHF707__081

580

MHF704__101

260

MHF707__101

710

MHF704__121

310

MHF707__121

840

MHF704__062

190

MHF707__062

570

MHF704__082

250

MHF707__082

740

MHF704__102

315

MHF707__102

905

MHF704__122

375

MHF707__122

1071

Caution

Содержание Marley MH 05-116E

Страница 1: ...Marley MH Fluid Cooler User Manual 05 116E...

Страница 2: ......

Страница 3: ...n and operation of your fluid cooler Carefully read the manual before installation or operation of the fluid cooler and follow all instructions Save this manual for future reference Indicates presence...

Страница 4: ...te located on the access door Safety First The location and orientation of the fluid cooler can affect the safety of those responsible for installing operating or maintaining the fluid cooler However...

Страница 5: ...HF706 and MHF707 only Ladder extensions used where the base of the tower is elevated Safety cages for ladders External lube lines Access door platform Motor located outside the tower Double flow model...

Страница 6: ...fluid cooler from the delivering carrier inspect the shipment for evidence of damage in transit If damage is apparent note the freight bill accordingly This will support your future recovery claim Fi...

Страница 7: ...ooler to supporting steel with 3 4 diameter bolts and flat washers by others See support drawing for location and quantity Position flat washers between the bolt head and the fluid cooler basin flange...

Страница 8: ...sconnect switch the motor should be wired to main power supply through short circuit protection and a magnetic starter with overload protection Motor Wiring Wire motor leads as shown on the motor name...

Страница 9: ...limit amp draw to nameplate amps during cold weather operation If furnished with a mechanical O L set this at 110 over motor nameplate amps Motor rotation must be the same in both VFD mode and By pass...

Страница 10: ...ual Improper use of a VFD may cause damage to equipment or personal injury Failure to correctly install the VFD drive will automatically void all warranties associated with the motor and any equipment...

Страница 11: ...educer to the proper level with approved lubricant See Geareducer User Manual Check oil level at the Geareducer or dipstick standpipe located on fan deck if so equipped to confirm that the proper leve...

Страница 12: ...th a 2 minute time delay between changes of direction These delays will prevent abnormal stress from being applied to the mechanical equipment and the electrical circuit components 5 Run the motor and...

Страница 13: ...nue filling the system until the water reaches a level approximately 1 8 3 mm below the lip of the overflow 4 Start your pump s and check for proper rotation as indicated by the arrow on the pump cove...

Страница 14: ...7 0 to 7 6 The chlorine re sidual must be held at 4 to 5 mg L ppm for six hours measurable with standard commercial water test kits If the fluid cooler has been in operation and then shut down for a d...

Страница 15: ...e fluid cooler Reduced wet bulb temperatures will result in colder process fluid temperatures However the cold process fluid temperature will not vary to the same extent as the wet bulb For example a...

Страница 16: ...equipped with a two speed motor s you will enjoy greater opportunity for process temperature control When the process fluid temperature becomes too cold switching the fan to half speed will cause the...

Страница 17: ...he minimum allowable cold process fluid temperature is estab lished at or near minimum heat load it should be safe for all operat ing conditions Having established the minimum allowable cold water tem...

Страница 18: ...ive Caution note on page 12 for fan speed change and reversing precautions Intermittent Wintertime Operation If periods of shutdown nights weekends etc occur during freezing weather measures must be t...

Страница 19: ...r local Marley sales representative Operation Model Coil Volume US Gallons Model Coil Volume US Gallons MHF702__061 65 MHF705__061 235 MHF702__081 85 MHF705__081 315 MHF702__101 105 MHF705__101 390 MH...

Страница 20: ...led between 6 5 and 8 0 with hardness and alkalinity levels between 100 and 300 ppm expressed as CaCO3 Chlorine if used shall be added intermittently with a free residual not to exceed 1 ppm maintaine...

Страница 21: ...fill surfaces and the coil should be flushed by use of a moderate pressure water nozzle being careful not to cause physical damage A reliable water treatment program should be installed and maintaine...

Страница 22: ...ied hardware located at the top and bottom of the motor support assembly before adjusting the jacking screws Do not remove the hardware it is required to support the motor Tighten the hardware after a...

Страница 23: ...d of the rod next to the casing Turn the nut closest to the end of the rod to tighten the belt Turn the other nut to loosen the belt After achieving proper tension tighten the double nuts located on t...

Страница 24: ...ier Sheave Alignment The motor sheave is to be positioned as close as possible to the motor in order to minimize stress on the motor bushings The motor and fan sheaves may have grooves that are not us...

Страница 25: ...result in a fall Included with this instruction packet are separate User Manuals on each major operating component of the tower and it is recommended that you read them thoroughly Where discrepancies...

Страница 26: ...gh pressure water may damage the eliminator and louver material Observe operation of the float valve Depress the operating lever to make sure that the valve is operating freely Inspect the suction scr...

Страница 27: ...and fan guard Refer to Component User Manuals for torque values Inspect the fluid cooler thoroughly making maximum use of instructions given in the separate user manuals Check structural bolted conne...

Страница 28: ...draining promotes corro sion inside the coil tubes See protecting coil in Freezing weather on page 18 During shutdown clean the fluid cooler see Warning page 21 and make any necessary repairs Elimina...

Страница 29: ...Clean and lubricate motor at close of each operating season refer to motor manufacturer s recommendations Check motor anchor bolts and tighten as required See Page 28 for fluid coolers with motor loca...

Страница 30: ...e shipped within 24 hours by air freight if necessary However you would obviously benefit from anticipating your need in ad vance thus avoiding the cost of special handling Be sure to mention your flu...

Страница 31: ...x x Lube lines if equipped Check for oil leaks in hoses or fittings x R x Belt drive if equipped Fan shaft bearing lubrication every 3 mo every 3 months every 3 months Check and tighten support fasten...

Страница 32: ...nbalanced voltage Check voltage and current of all three lines against nameplate values Overload Check fan blade pitch See Fan User Manual Check for drag in fan drivetrain as from damaged bearings Wro...

Страница 33: ...haft bearing Belt drive Grease bearings Scale or foreign substance in circulating water system Insufficient blowdown See Water Treatment section of this manual Water treatment deficiency Consult compe...

Страница 34: ...eld installation is required for fan guards double flow models piping inlets and piping outlets Some optional accessories such as handrails ladders and safety cages may also require field installation...

Страница 35: ......

Страница 36: ...PARK KANSAS 66213 UNITED STATES 913 664 7400 spxcooling spx com spxcooling com In the interest of technological progress all products are subject to design and or material change without notice 2008...

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