The NAOMOTO ALL STEAM IRON, specifically the HSP-440 model from the HSP series, is a professional and industrial-grade ironing device designed exclusively for ironing textile fabrics and garments. Unlike conventional irons, it features a unique "All Steam Iron" design with no electric heater built-in, relying entirely on steam supplied from a steam boiler. This design incorporates a Condensate Return System.
Function Description:
The primary function of the HSP-440 is to provide steam-based ironing for professional applications. Steam is supplied from an external boiler, and the iron's design ensures efficient steam distribution for effective wrinkle removal. The iron is operated by pushing a lever to release steam.
Important Technical Specifications:
- Model: HSP-140 (Note: The cover page states HSP-440, while the specification table lists HSP-140. This discrepancy might indicate a series or a specific model within a broader range, but for technical specs, HSP-140 is provided).
- Working Steam Pressure: 0.1 - 0.5 MPa (1 - 5 bar).
- Steam Valve Type: Push Lever Type.
- Weight: 1.1 kg.
- Base-Plate Size: 203mm x 99mm.
- Body Treatment: "TUFRAM".
- Steam Temperature (at various pressures):
- 0.1 MPa: 120 °C
- 0.2 MPa: 133 °C
- 0.3 MPa: 143 °C
- 0.4 MPa: 151 °C
- 0.5 MPa: 158 °C
- Sole Plate Temperature (at various pressures):
- 0.1 MPa: 113 °C
- 0.2 MPa: 125 °C
- 0.3 MPa: 135 °C
- 0.4 MPa: 142 °C
- 0.5 MPa: 149 °C
- Hose Requirements: Two hoses are required: one for steam supply and one for drain. The steam-supply hose's internal diameter should be more than 5mm at the narrowest part if an Inner-Tube is used to avoid drain water. The Naomoto Extra-Hose is recommended for steam supply, especially for pressures not exceeding 0.3 MPa. Naoflon hose should be used for the drain hose.
Usage Features:
- Steam Control: The iron features a push lever for steam activation. The steam flow can be adjusted by unfastening a plastic nut on top of the steam valve and turning a control-screw. Turning counter-clockwise increases steam flow, while clockwise decreases it. This adjustment is for precision control of steam flow from the base-plate, separate from boiler pressure.
- Drain Valve: The iron includes a drain valve with a knob. This valve is crucial for draining condensate and ensuring proper operation. It has three positions: Full Open (0.1 MPa), Half Open (0.2 MPa), and Closed (More than 0.3 MPa). Even in the "Closed" position, a clearance allows for draining.
- Hose Installation: The installation process involves connecting the steam supply and drain hoses. The steam supply hose requires an inner tube, hose joint spring, O-ring stopper, and silicone O-ring. The inner tube is inserted into the hose joint spring, O-ring stopper, and O-ring, then its tip is inserted into the back hole of the steam supply hose joint of the iron. The other end of the inner tube goes into the mouthpiece (G1/4) of the steam supply hose. The drain hose connects to the drain hose joint (G1/4).
- Pre-Operation Cleaning: Before connecting the Special Extra-Hose to the iron, it's recommended to clean the inside of the hose by flushing it with steam from the boiler to remove dust and dirt. A receptacle should be used to catch the gushing steam and hot water during this process.
- Safety Precautions:
- WARNING: Hot steam can gush from the iron; do not hold it upside down or direct it towards people. Do not place inflammables, chemicals, or oils near the iron. Always cut the steam source before leaving the iron unattended. The iron gets hot; do not touch parts other than the grip with bare hands.
- CAUTION: Do not apply the iron to materials other than textile fabrics. Provide steam at an appropriate pressure (under 0.5 MPa) for the fabric. Do not drop the iron; always place it securely on the iron-rest. Use only Naomoto Extra-Hose for steam supply to prevent malfunction. Use of a mesh-filter at the steam intake of the boiler is crucial to prevent dust and impurities from entering the iron.
- End of Daily Operation: To conclude daily operation, close the steam valve of the boiler and fully open the draining valve. Keep the lever pushed down until all remaining steam and water inside the iron and hose have been blown out.
Maintenance Features:
- Daily Maintenance:
- Clean the iron by removing dust and adhered starch residues.
- Completely empty remaining steam and condensate from the iron and hose.
- Check for steam leakage at the base-plate and valve when the swing-lever is in the normal (closed) position.
- Troubleshooting (Inconsistent Steam Flow):
- If the steam valve cannot be closed enough to stop steam flow, replace the valve spindle.
- Check for dust or flaws in the packing, valve seat, O-ring, washer, etc., and replace damaged parts.
- Valve Disassembly:
- To disassemble the valve, insert a 1.5mm diameter wire into the valve spindle while pushing the lever.
- Unscrew three stopping screws of the lever, then remove the push lever and metal fitting.
- Remove the valve joint with a spanner.
- Further remove the wire, Teflon bushing, O-ring, spindle washer, and spring.
- Reassemble in reverse order after checking/replacement, ensuring to wind seal tape on the valve joint.
- Drain Troubleshooting: If water drops or excessive drain comes out with steam, check for abnormal steam boiler pressure, pipeline abnormalities, or inconvenience of draining function. Consult the agent or office for assistance. The drain valve components (spindle, back-up ring, O-rings, spindle stopper screw, drain valve knob) can be inspected.
- General Maintenance Advice: For any problems with the iron or boiler, contact the nearest NAOMOTO office or agent. Regular maintenance checks are essential for trouble-free operation. Before any maintenance, cut the steam source, empty steam from the iron and hose, and wait for the iron to cool down.
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