Sawo STN Series Manual

Sawo STN Series Manual

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2 Heating Elements
3,0 kW
4,5 kW
3,5 kW
5,0 kW
4,0 kW
6 Heating Elements
9,0 kW
12,0 kW
15,0 kW
DISTRIBUTOR'S MANUAL
3 Heating Elements
4,5 kW
6,0 kW
7,5 kW
STN
Steam Generators

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Summary of Contents for Sawo STN Series

  • Page 1 DISTRIBUTOR’S MANUAL 2 Heating Elements 3 Heating Elements 3,0 kW 4,5 kW 4,5 kW 3,5 kW 5,0 kW 6,0 kW 4,0 kW 7,5 kW 6 Heating Elements 9,0 kW 12,0 kW 15,0 kW Steam Generators...
  • Page 2: Table Of Contents

    Table of Contents Introduction Water Level Probe STP Package Steam Generator Dimensions Electrical Diagrams Choosing Correct Kilowatt Size Steam Generator Software Versions Installation Software Compatibility Piping Steam Head Location Room temperature sensor STP Control Panel Instructions of Use Cabin Light OFF / ON Mode Standby Mode Demand Button...
  • Page 3: Introduction

    • WATER FILTERS It is recommended to install a water filter when having a steamgenerator. The water filter lessens the water sediments which causes clogged up that can destroy the steamgenerator. TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 4: Stp Package

    Thread: 1” 185mm 2 Heating Elements 3 Heating Elements 220mm 560mm Water Inlet 3/4” BSP Power Switch 6 Heating Elements Steam Outlet Valve 485mm Automatic Drain Thread: 1” 6 Heating Elements 310mm TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 5: Choosing Correct Kilowatt Size Steam

    Total, rounded up Steam Generator size: 18kW Example #3 Steam room acrylic walls. Room size: 2.3(h) x 2.1(w) x 2.5m(d) = 12.08m³ Adjustment: 12.08m³ + 0 = 13m³ Total, rounded up Steam Generator size: TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 6: Installation

    7. The steam generator has to be installed in an upright position only. 8. Install water filter and softener or alike when necessary. 9. Leave enough space for service and maintenance of the generator. TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 7: Piping

    “steam trap” blocking the flow of the steam. Do not use 1 steam line when installing 2 steam generators. Steam Line Sizes (kW) Steam Line 3-7,5 1/2”-3/4” 9 and above 3/4” Steam Head Location Recommended Steam Head Location TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 8: Stp Control Panel Instructions Of Use

    If no buttons are pressed for 10 seconds, the set temperature for the steam room will be displayed. When the session time expires, the control unit will go to the “Standby” mode. TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 9: Standby Mode

    6. Press On/Off button or Standby button or demand button. 7. Press On/Off button for more than 3 seconds or when the drain time expires. 8. Press Standby button for more than 3 seconds or when the session time expires. TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 10: Temperature / Timer

    If no keys are pressed within 5 seconds, changes in the values are confirmed. In the “On” mode, if no keys are pressed for 10 seconds, the display will automatically display the set temperature. TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 11: Cabin Light/Dimmer

    Press of the demand button will immediately release extra steam for 30 seconds. Pressing the “Demand” button when the steam generator is in “Off” or Standby” mode will switch the control unit to “On” mode. TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 12: Technical Data

    6 x 2,0 kW STG-200 380 - 415 STN-150-3 15,0 22 - 40 6 x 2,5 kW STG-250 380 - 415 NOTE! Weight includes packing: Carton box, sensor, control unit, steamhead and autodrain valve. TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 13: Pcb Parts

    AROMA PUMP Demand button illumination: CONNECTION +12VDC, 25mA CONNECTOR LIGHT CONNECTION DIMMER RANDOM NUMBER SOFTWARE VERSION NUMBER COMPONENTS SWITCHES NOTE! Polarity for demand button illumination important. Polarities of other connections are not important. TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 14: Dip Switches

    No.: Dimmer option Dimmer option Cabin Light enabled disabled Present Not Present Scent Pump Present Not Present Connected Not Connected Auto Drain Temperature range 30-55°C 30-50°C Slave Unit Slave Number Slave Number TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 15: Steam Generator Series Connection

    If more than one board is used, take the jumpers out of all the boards, except the last one in the chain. JUMPER REMOVED WITH JUMPER TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 16: Water Level Probe

    3 core cable LIGHT 7,5 meters FUSE NTC2 CONTACTOR -Classic -Classic 2.0 -SST See page 21 CONTACTOR UNIT Scent Pump Light Auto Temperature Drain DC Switch Sensor HEATING ELEMENTS HEATING 100W ELEMENTS TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 17 +/- ill CONTACTOR SCENT PUMP LIGHT 7,5 meters CONTACTOR UNIT HEATING ELEMENT FUSE NTC2 -Classic -Classic 2.0 -SST HEATING ELEMENTS See page 21 Scent Pump Light Auto Temperature Drain DC Switch Sensor 100W TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 18 SWITCH +/- ill CONTACTOR SCENT PUMP LIGHT 7,5 meters CONTACTOR UNIT FUSE NTC2 -Classic -Classic 2.0 -SST HEATING See page 21 ELEMENTS Scent Pump Light Auto Temperature Drain DC Switch Sensor 100W TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 19: Software Versions

    NUMBER INTERFACE GENERATOR *No Dots on display SOFTWARE PCB SOFTWARE VERSION VERSION NUMBER NUMBER Software Compatibility TOUCH USER INTERFACE BOARD CLASSIC USER INTERFACE BOARD STP-BOARD TOUCH UIB COMPATIBILITY STP-BOARD TOUCH UIB COMPATIBILITY TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 20: Room Temperature Sensor

    Before installation main supply of the generator must be switch off from the circuit braker. The temperature sensor comes along with the SAWO steam generator. It is recommended to use only Sawo temperature sensor with Sawo generator as it may otherwise not function correctly.Temperature sensor wiring should not be routed near power cables or hot areas as it may cause electronic interference or damage to the wires.
  • Page 21: Cabin Light

    4-pole connection cable. 2 poles for switch and 2 poles for illumination. Terminal block (Steam Generator) Terminal block Connection Cable 10 meters connection cable Demand Button Terminal Block Wire Color Connections Switch Yellow Switch Grey -ILL White -ILL Brown -ILL Green +ILL TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 22: Scent Pump

    Dosing nozzle should be installed above steam head in order to maximize aroma flow to steam room. Back flow of Aroma to steam generator must be prevented by piping means even small quantity of aroma inside steamgenerator will make water level detection unreliable. SAWO STN Steam Generator Scent (shown with cover removed)
  • Page 23: Maintenance

    To prevent this and prolong the lifetime of steam generator it is recommended to have a water filter and water softener. They are connected to the water source of the steam generator’s water inlet. SAWO Decalcifying Solution can be used for decalcification. Follow these guidelines to perform preventative maintenance of the steam generator.
  • Page 24: Tank Cleaning

    Connected in series with contactors coil. Protects heating element from overheating. STP Tank Temperature Sensor Measures water temperature. NTC type, connected to NTC2 terminal on STP-BOARD. Inserted inside heating element. Thin wire TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 25: Troubleshooting

    No master steam Dip switch setting is incorrect. Check dip switch settings. generator connected. Check RJ12 for loose contact. Replace RJ12. If no problem can be found, contact the retailer. TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...
  • Page 26: Spare Parts

    STP-SWITCHM 21. STP/STN Control Unit 22. Thermal Fuse 23. Tank Temperature Sensor STP-AUTODRAIN-1 STP-HT1.5 STP-HT2 STP-HT2.5 STP-GASKET 2H.E. STP-GASKET 3H.E. STP-GASKET 6H.E. STP-FUSE STN-HECOV-2HE STN-HECOV-3HE STN-HECOV-6HE STN-TANK-2HE STN-TANK-3HE STN-TANK-6HE STP-TTS STP-SHEAD2 STP-RTS TECHNICAL GUIDE www.sawo.com | info@sawo.com STN Steam Generators...

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