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11. Operating cautions

(1) In order to prevent fires, never allow explosive gases, organic solvents, 

sparks, or burning cigarettes to be sucked into the suction port.

(2) The optional 

chip separator

 should be used when operating the Mistresa 

in environments where large amounts of chips, dust, and high-concentration 
mist are present.

(3) In environments where large amounts of 

oily

 mist (non-water-soluble) 

are being sucked in, or where the sucked in mist particulate is small, etc., 
either the optional 

general-purpose after-filter or the 

high-performance after-filter

 should be used to compensate for 

changes in the collection efficiency due to these operating conditions, 
and to prevent blow leakage and re-dispersion. Additional optional parts 
are required to install the after-filter.

(4) The optional 

high-performance after-filter

 should be used when 

operating the Mistresa in environments with small particulate matter 
such as oily smoke, etc., and where the mist particulate is small and 
present in high concentrations. Moreover, the optional inner-filter should 
also be used to increase the after-filter life.

(5) For the CRD-H Series, CRH-H Series and CRN Series Mistresa, use 

care so as not to let the filter (de-mister) clogged to choke itself up (a 
state where no air flows). Otherwise, since the air flow cools the 
integrated air-cooled motor, choking up causes the motor not to cool 
down sufficiently, possibly leading to burnout. It does not apply, 
however, to the motors of the CRH (high temperature types) as they sit 
outside the units.

(6) Make sure that the CRH (high temperature types) Series Mistresa draws 

mist. Otherwise, since the lack of mist (fluid) causes insufficient 
lubrication and poor cooling at the contacts between the oil seal and 
shaft, the resulting heat buildup leads to a shorter service life and 
premature leak. However, this does not apply to the CRD-H, CRH-H 
Series, or CRN Series as each of them employs a V ring that can operate 
in a dry condition.

(7) If a CRH (high temperature types) or a CRH-H Series has to draw in 

water mist that does not contain a corrosion preventive, be sure to 
operate it at no load for a few minutes to dry the inner structure to 
prevent corrosion.

Summary of Contents for Mistresa CRD-H Series

Page 1: ...037 E E Operation Manual Cautions CRH H Series CRH Series CRD H Series CRN Series...

Page 2: ...ting cautions Maintenance and inspections Clogging status indicator Warranty Contact information Specifications Contents Thank you for purchasing the Mistresa from Showa Denki This manual explains the...

Page 3: ...d Electrical shock hazard Electrical ground required 1 Cautionary information indications used in this manual 2 Meanings of symbol marks used in this manual WARNING mark indicates cautionary informati...

Page 4: ...nsport If you want to transport by installing the product on the device please fix firmly with as rope hanging It may cause malfunction or damage Always wait at least 2 minutes after a power OFF befor...

Page 5: ...y filter for replacements Drain tube 2 5m Hose band for drain tube Anti vibration pads Duct companion flange Packing for duct companion flange Bolts nuts for securing the duct companion flange Crimp t...

Page 6: ...rge drain tube Side cover Elbow De mister box Box de mister The CRH H Series do not come with the clogging status indicator 5 Internal component names and layout Middle demister Top panel Discharge du...

Page 7: ...CRH 200T E Secondary filter Side cover packing Filter frame Front de mister Primary filter Primary filter Metal net Metal net Filter retainer Filter retainer Duct companion flange Duct companion flan...

Page 8: ...Primary filter 2 pieces Space net Cap left and right Suction drain tube Filter box Duct companion flange Clamp Impeller Secondary filter 2 pieces Reducer Side cover Main body Discharge drain tube Moto...

Page 9: ...emoving it support the panel with the hands while releasing the clamp Because the discharge port area is constructed from thin sheet metal use care to prevent damage deformation when grasping this are...

Page 10: ...Class 2 petroleum mist such as kerosene and Class 3 petroleum mist or higher of Class 4 hazardous substances to flow into the product However make absolutely sure that the mist temperature is below t...

Page 11: ...achine etc secure it with bolts to prevent shifting due to vibration Leave a gap at the securing bolts to allow the anti vibration pads to function properly See Fig 1 The liquid seal surface should be...

Page 12: ...d B with white leads on the CRD H CRH H and CRN Series are for motor burnout prevention See 4 for their connection and use When using crimp terminals either cover the crimp area with an insulation tub...

Page 13: ...roneously tripped if the Mistresa is operated in an intermittent manner In this case change the thermal relay a Connection example for burnout prevention terminals A and B Electromagnetic switch devic...

Page 14: ...ange accessory item to facilitate easy connection Positioning the intake port too close to the mist generation source could result in large amounts of mist cutting chips and dust to be sucked in causi...

Page 15: ...Be sure to liquid seal the suction drain tube Otherwise the suction drain tube sucks air through its end causing the drain to flow back but not drain This in turn could lead to premature clogging of t...

Page 16: ...t in high concentrations Moreover the optional inner filter should also be used to increase the after filter life 5 For the CRD H Series CRH H Series and CRN Series Mistresa use care so as not to let...

Page 17: ...rimary filter Secondary filter Tertiary filter End filter Polyester Polyester Polyester Polyurethane 1 to 6 months 1 to 6 months 6 to 12 months 6 to 12 months YES YES YES YES Present Absent Absent Abs...

Page 18: ...H Series Primary and secondary filter replacement These filters can be reused after being washed Release the clamps and open the filter cover 1 Use care to avoid contact with the clogging status indic...

Page 19: ...s one sheet at a time with their Genuine Mistresa Part stamp on the downstream downwind side Installing both sheets at once could cause positional deviations 6 7 End filter replacement Release the dis...

Page 20: ...ld lead to oil leak Drain line inspection Unclamp the box de mister Remove the cap Lift the box de mister upwards to take it out To inspect the drain line unclamp the box de mister Lift the box de mis...

Page 21: ...ry filter 2 pieces put each one piece of them in place at a time with the stamp MistresaGenuine Part facing the downstream downstream of air flow direction Do not attempt to put all of them in at one...

Page 22: ...s Since the CRH E Series Mistresa use a quasi explosion proof motor contact us for maintenance other than replacing the filters See page 24 5 Filter washing procedure Washing method Filters and demist...

Page 23: ...ndard operating condition 3m or less from the suction duct with no after filter installed at the discharge side Depending on the customers piping configuration and installed accessories the following...

Page 24: ...ion conditions Prior to shipment the indicator is mounted on the left side as viewed from the suction side The procedure for changing this to a right side mount is given below Release the clamp remove...

Page 25: ...with the instructions given in the operation manual and on the product labels In the event that the customer has installed this product in other existing equipment this warranty does not cover the co...

Page 26: ...ct aging related discoloration scratches and natural wear of consumable parts 4 Showa Denki shall not be liable for any customer damages incurred due to a malfunction of this product 15 Contact inform...

Page 27: ...y Hz Current A Weight kg CRD H04 CRD H04A 0 4 50 60 2 0 2 0 2 0 33 CRD H07 CRD H07A 0 75 50 60 3 0 3 3 3 3 44 CRD H15 CRD H15A 1 5 50 60 6 9 7 0 7 0 70 CRD H22 CRD H22A 2 2 50 60 10 2 10 4 10 4 79 3 p...

Page 28: ...72 870 7243 TEL 66 2 330 8798 FAX 66 2 330 8799 Oversea Sales Department SHOWA DENKI Thailand Co Ltd 1 25 Shinden Kitamachi Daito City Osaka 574 0052 No1 46 Soi2 Grand De Ville Soi Supapong 1 Soi Srin...

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