SAUNATEC GROUP Ltd HELO HSS M and HST M STEAM GENERATOR User and Installation Guide for models: HELO HSS M 34, 47, 60, 77. HELO HST M 90, 120, 140.
Technical information: • Voltage: 400V – 415V 3N~ 50Hz (230V – 240V 1N~ 3.4 – 7.7 kW) • Power options 3.4kW-14kW • Protection Class: IP 20 • Water tank material: AISI 304, steel • Two-stage control for heat elements.
INSTALLATION AND USE HSS M and HST M generators are designed solely for application in steam bathing facilities. Use of the steam generator for any other purpose is not permitted. The manufacturer is not responsible for damage caused by equipment that has been incorrectly installed or used or any consequential loss that may occur. Prior to electrical connection, plumbing of pipes for water feed and steam delivery must be completed.
STEAM GENERATOR CONNECTORS Main switch Electricity connection Cable for the flush vent Control module cable Measurem ents Water connection H Excess pressure vent and descaling (optional) HSS H = 325 W = 185 D = 315 Steam exit HST H = 410 W = 200 D = 400 D W Water and Steam connection Connect the ¾" flexible water pipe (included in the package) from the water connection in the equipment (see picture) to the cold water supply in the building. Water pressure must fall between 0.2 and 10 bar.
ELECTRICAL CONNECTIONS The steam generator will be semi-permanently connected to the electricity mains. Local regulations must be observed. Steam generator Power 400V-415V 3N~ 230V-240V 1N~ KW Amp Amp 230V3~ Amp Room size m³ *) HSS 34 HSS 47 HSS 60 HSS 77 HST 90 HST 120 HST 140 3.4 4.7 6.0 7.7 9.5 12.0 14.0 8 12 15 19 24 30 35 1.5-2.5 2.
WIRING DIAGRAMS HSS M 3,4 kW - 7,7 kW 3 N~ 400 V - 415 V 1 N~ 230 V - 240 V 50 - 60 Hz Elements 3 N~ Contactor 6 2 5 1 Tank Heater fuse Main switch PE L3 L2 L2 L1 L1 N N N N Gr Gr Earthing for cover N H1 N H2 N V1 N V2 OLEA 72 A K S1 S2 TX RX +5 0 L S1 Wh Re Serial traffic to Gr MIDI-control Ye LC1 LC2 B1 B2 T1 T2 N Water valve filling 230 V AC L3 High level S2 Low level Water valve drain 230 V AC 1 N~ Wh Thermostat Re Level probe Wh Ye On / Off Gr Push button Br
HST M 9,5 - 14 kW 3 N~ 400 V - 415 V 50 - 60 Hz Elements 3 N~ Contactor 6 5 L3 L2 2 1 L1 Tank N Heater fuse N Gr Main switch Earthing for cover Level probe PE High level S2 Water valve drain 230 V AC Water valve filling 230 V AC L N H1 N H2 N V1 N V2 OLEA 72 A K S1 S2 TX RX +5 0 N Wh Re Serial traffic to Gr MIDI-control Ye LC1 LC2 B1 B2 T1 T2 Low levelt S1 Wh Thermostat Re Wh Ye On / Off Gr Push button Br Alarm 12 V DC Light control opto 24V DC max 50 mA External voltage 354
HSS M 3,4 kW - 7,7 kW HST M 9,5 kW - 14 kW 3 ~ 230 V 50 - 60 Hz Elements 3~ Contactor 6 5 L3 4 3 L2 2 1 L1 Thermofuse Gr Main Switch Top cover OLEA 72 PE High level S2 Water valve drain 230 V AC Water valve filling 230 V AC L N H1 N H2 N V1 N V2 OLEA 72 A K S1 S2 TX RX +5 0 N White Red Green Yellow Control keyboard White Yellow Green Brown On / Off pushbutton LC1 LC2 B1 B2 T1 T2 Low level S1 White Red Level probe Thermostat Alarm 12 V DC Light control opto max.
INSTALLATION OF THE GENERATOR AND OPTIONAL EXTRAS Temperature sensor Water connection Control module OK ON 400V 3N~ OK OFF ON OFF Pressure button Steam nozzle Floor drain Control module may be installed inside the steam room. If the control module is fitted outside the steam room or so low within the steam room that its own thermostat does not show the correct temperature, a separate thermostat which is connected directly to the circuit board must be used.
MIDI CONTROL MODULE FOR HSS M AND HST M STEAM GENERATOR Light control Temperature display Time display Temperature setting 25 - 50 °C OK Time setting 0 - 4 hours Temperature sensor ON OFF Steam generator On / Off Digital control module -ON / OFF button for starting / stopping the steam -OK button - Bathing temperature selection button (temperature display flashing) - Bathing time selection button (time display flashing) plus button (+) for increasing the setting of time and temperature minus button
Control Module functions The steam is started from the control module by pressing the ON/OFF button. After this, the temperature display will flash. The temperature may be set with the + and - buttons in 10 increments from 25 °C min. and 50 °C max. When the desired temperature is displayed press the OK button to set the bathing time. The display flashes and the time can be set with the + and - buttons in 1 minute increments up to 90 minutes. Above this the display switches to hourly mode to max. 4 hours.
INSTALLATION OF THE CONTROL MODULE, PUSH BUTTON AND THE THERMOSTAT: 55 mm Affixing hole The control module is factory sealed to withstand use in the humidity of the steam room. It can be installed directly against the wall, fixed with suitable screws through the two fixing holes and sealed in place with silicone sealed. A hole should be drilled in the wall to feed the control cable back to the generator - this may be directly behind the control or just below.
FLUSHING AND RINSE The generator should be emptied after each use. Since chalk and scale will naturally adhere to the internal components, it is important to drain the tank while the water is still hot. This ensures that no chalk builds up on the elements, tank or sensors. Install an 18/16mm copper or heat resistant silicone pipe from the flushing valve into the floor drain. The pipe's internal diameter should be approx. 14-16mm.
On generator fitted with a push button, the LED light in the button will blink rapidly when an error is detected; e.g. steam was turned on while the water supply was isolated or for some other reason water flow to the generator was restricted. This error will also be generated if the water flow is interrupted during operation. Error message can be reset by pressing the button. Fix the problem or call in service personnel. Circuit card includes 24V DC max 50 mA output for external alarms.
DE-SCALING INSTRUCTIONS As an optional extra, the generator can be fitted with a Descaling Kit, to facilitate the addition of citric acid solution into the tank. De-scaling of HSS M and HST M steamers is carried out by installing the pipe with filler in line between the generator and pressure release valve. (see illustration) Remove parts from packaging. Unscrew pressure release valve from generator and attach filler pipe using PTFE tape provided to ensure a good seal.
