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Miscellaneous / Notes

DehuTech AB

Enhagsslingan 23
S-187 40 TÄBY
Sweden

Tel:

+46 8 792 04 08

Fax:

+46 8 792 55 59

E-mail:

[email protected]

Website:

www.dehutech.com

17

Subject to change without notice

DehuTech 2400

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Summary of Contents for 2400

Page 1: ...DEHUMIDIFIER DehuTech 2400 Technical Manual Valid from serial no 690502 2005 DehuTech AB ...

Page 2: ...ards and technical specifications SS EN 60335 1 issue 2 Electrical domestic appliances general requirements SS EN 60335 2 40 issue 1 Specified requirements for electrical heat pumps air conditioning units and dehumidifiers SS EN 60335 2 40 A51 issue 1 Specified requirements for electrical heat pumps air conditioning units and dehumidifiers amendments SS EN 60335 1 T1 T2 T3 T4 T5 according to condi...

Page 3: ...on air into the dehumidifier 7 Process and dry air with the dehumidifier installed in the dehumidified room 7 Process and dry air with the dehumidifier installed outside the dehumidified room 7 Electrical installation 7 Commissioning 8 Maintenance 9 Filters 9 Rotor 9 Electrical motors 9 Heater 9 Rotor drive belt 9 Sealings 9 General summary of maintenance intervals 10 Transportation 10 Fault findi...

Page 4: ...rvice panel Prior to servicing the dehumidifier must be left to cool down for at least 15 minutes after operation The service panels should remain closed except when servicing is carried out The dehumidifier can only be used for dehu midification of air at atmospheric pressure Never use the dehumidifier without the filters as the desiccant rotor can become contaminated and lose capacity Signs and ...

Page 5: ...the dehumidifier create air streams which travel trough the desiccant rotor in opposite directions The larger air volume the process air passes through the slowly rotating silica gel rotor Silica gel is a hygroscopic material adsorbing water vapour direct from the air When pass ing through the rotor the humidity of the air is reduced whilst the moisture content of the rotor material increases On e...

Page 6: ...s the belt in place and maintains tension to prevent belt slip Correct operation of the drive system and direction of rotation can be checked by opening the front panel Rotor bearings The centre hub of the rotor is equipped with ball bearings The rotor shaft is made from stainless steel Filters The dehumidifier has two separate filters One in the process air inlet and one in the reactiva tion air ...

Page 7: ...ening should have a coarse wire net Reactivation air into the dehumidifier The reactivation air duct into the dehumidifier should be as short as possible The intake open ing of the duct should have a coarse wire net to stop foreign objects from entering the dehumidi fier No insulation is needed and the duct can slope up or downwards In some installations as an alternative the reactivation air can ...

Page 8: ...at all three phases are live Terminal L1 L2 L3 in the dehumidifier 9 Check to see that the lamp called STAND BY is lighting up but that the machine doesn t start 10 Start the dehumidifier for a short moment 3 4 seconds by turning the main switch to the MAN position While in operation check that the rotor is slowly turning in the right direc tion and the green operation lamp lights up Stop the dehu...

Page 9: ...compressed air should be the first choice With severe contamination the rotor can be washed with water Cleaning with water is no routine matter please contact DehuTech AB or local distributor prior to this procedure Check the rotor bearing and the rotor surface once a year Electrical motors The electrical motors are equipped with ball bearings The bearings are designed to last the life of the moto...

Page 10: ...in and snow The dehumidifier should always stand upright on its feet Never put other goods on top of the dehu midifier Transport and lift the dehumidifier by fork lift Ensure that the forks go all the way to the back of the dehumidifier before lifting Transportation 10 Subject to change without notice DehuTech 2400 Filter Rotor Bearing Motors Rotor drive Heater Sealings On demand Every 6th month E...

Page 11: ... volume Rotor does not rotate Reactivation heater faulty Check fans and motors Check air volumes and dampers Check drive motor Check reactivation heater Dehumidifier does not start No control circuit Faulty control signal Phase fault Fuse for controls faulty Check control fuses Check external start stop signal Check main fuses and phase sequence Check electrical components Rotor does not rotate Dr...

Page 12: ...ect to change without notice DehuTech 2400 CAPACITY DIAGRAM 0 5 10 15 20 0 5 10 15 20 XP g kg X T g kg 5 10 15 20 25 Temperature rise o C tp 30 C tp 20 C tp 10 C EXAMPLE Process air xp 9 0 g kg tp 20 C giving Dry air xT 3 3 g kg tT 20 20 40 C ...

Page 13: ... 250 Pa available pressure Wet air flow 800 m3 h at 410 Pa available pressure Power supply 25 kW 3 x 400 V 50 Hz Current A phase 37 5 A connection fuse 50 A phase Weight 190 kg Max noise level 75 dB A 13 Subject to change without notice DehuTech 2400 The image above is a right hand unit Note Valid only for standard units with standard air flows ...

Page 14: ...motor 230 240 V 50 Hz low temp grease 1 1 Capacitor 0 5 µF 700 V 1 Belt pulley 18 H 075 1 Drive belt 850 H 075 1 Belt tensioner 1 Process air fan MB 22 9 T2M 2 2 kW 1 Wet air fan MB 20 8 T2K 1 1 kW 1 Heater Electrical 1 Rotor PPS 2400 1 Process air filter Corrugated paper filter 715 x 494 x 45 mm 1 2 Reactivation air filter Metal frame filter 300 x 300 x 25 mm 1 2 ...

Page 15: ...ed rpm 2 850 2 750 Model RD RD Air flow m3 h 2 400 800 Head pressure Pa 1 000 1 000 External pressure available Pa 250 410 MOTORS Manufacturer Marin Maskin AB IEC Rotek Model 1 AT 90 L 2 80 T2 1 1 SM 65 30 4 Speed rpm 2 850 2 750 1 5 Power kW 2 2 1 1 14 5 VA Voltage V 400 400 230 Frequency Hz 50 50 50 Amps A 4 7 2 55 Power factor cos ϕ 0 84 0 84 Protection class IP 54 54 Insulation class ISO F F S...

Page 16: ...er Metal frame Filter class EU 5 EU 3 Filter media Glass fibre Metal Dimensions mm 1p 715 x 494 x 45 1p 300 x 300 x 25 Pressure drop clean filter Pa 40 60 Pressure drop dirty filter Pa 140 140 HEATER REACTIVATION AIR Power kW 21 5 Type Electrical Voltage V 400 Number of elements Type of elements Resistance ...

Page 17: ...cellaneous Notes DehuTech AB Enhagsslingan 23 S 187 40 TÄBY Sweden Tel 46 8 792 04 08 Fax 46 8 792 55 59 E mail info dehutech com Website www dehutech com 17 Subject to change without notice DehuTech 2400 ...

Page 18: ...Appendix 1 Electrical wiring Subject to change without notice DehuTech 2400 ...

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