DRYPOINT® RA HT 20-350 NA UL 3
Contents
1Name plate 5
2Safety instructions 5
2.1 Safety pictograms in accordance with DIN 4844 6
2.2 Signal words in accordance with ANSI 7
2.3 Overview of the safety instructions 7
3Proper use 9
4Exclusion from a field of application 10
5Instructions for the use of pressure equipment according to PED directive 2014/68/EU 10
7Transport 11
8Storage 11
9Installation 11
9.1 Place of installation 11
9.2 Installation plan 12
9.3 Correction factors 13
9.4 Connection to the compressed-air system 14
9.5 Electrical connections 14
9.7 Condensate drain 15
11 Start-up 16
11.1 Preliminary stages 16
11.2 Initial start-up 16
11.3 Start-up and shut down 17
13 Technical data 18
13.1 Technical data DRYPOINT RA HT 20-150 NA -P (1/115/60) UL 18
13.2 Technical data DRYPOINT RA HT 150-350 NA -E (1/230/60) UL 19
15 Technical description 20
15.1 Control panel 20
15.2 Functional description 20
15.3 Flow chart 21
15.4 Refrigerating compressor 22
15.5 Condenser 22
15.6 Aftercooler 22
15.7 Pre-Filter (1 micron) 22
15.8 Filter dryer 22
15.9 Capillary tube 22
15.10 Aluminium heat exchanger 22
15.11 Hot-gas bypass valve 22
15.12 Refrigerant pressure switches LPS –HPS –PV 23
15.13 Safety temperature switch TS 23
15.14 Aftercooler safety thermo-switch TSA 23
15.15 DMC 14 electronics (control unit compressed-air dryer) 24
15.15.1 How to switch on the dryer 24
15.15.2 How to switch off the dryer 24
15.15.3 How to display the operating parameters 24
15.15.4 How a service warning / alarm is displayed 24
15.15.5 How is controlled the drain solenoid valve 25
15.15.6 Operation of the failure / alarm dry contact 25
15.15.7 How to change the operating parameters –SETUP menu 25
15.16 Electronic level controlled condensate drain BEKOMAT 25
16 Maintenance, troubleshooting, spare parts and dismantling 26
16.1 Checks and maintenance 26
16.3 Troubleshooting 28
16.4 Recommended spare parts 31
16.5 Maintenance works at the refrigeration cycle 32
16.6 Dismantling the dryer 32
