PTW-1900 Installation Guide

Fig. 01 · Side Profile 1845 × 2050 × 2650 mm

Pre-installation site requirements

Floor space

• Machine footprint: 1845 × 2050 mm
• Door swing: 1200 mm both sides
• Service clearance: 1 m left, 1 m right (door operation), 600 mm rear (utility hookup)
• Total recommended footprint: 3500 × 4000 mm
• Floor levelness: ±2 mm over machine footprint

Ceiling and overhead

• Minimum ceiling height: 2900 mm (machine 2650 mm + exhaust duct routing)
• Exhaust duct route: Ø480 mm to roof, OR to steam-condensation hood for indoor recovery

Drainage

• Drain connection: 2" hot-water rated, slope 1:50 to building stack
• Grease trap upstream of building stack (code requirement)
• Peak drain flow: 200 L/hour (during wash-tank dump)

Water supply

• 3/4" cold water connection
• Pressure: 2–4 bar dynamic at machine inlet
• Hardness: < 8°dH preferred. Water softener or RO pre-treatment recommended in hard-water regions (> 12°dH)

Electrical supply (electric heating version)

• 380V / 3-phase / 50Hz
• 100A circuit breaker
• Earth/ground bond required per IEC 60364
• 60Hz / 208V / 480V variants on request for U.S. and other 60Hz markets

Steam supply (steam heating version)

• 1" steam pipe connection
• 8–10 bar saturated steam
• Consumption: ~35 kg/cycle
• Condensate return line recommended

Pit vs ramp installation

The chamber floor must transition flush with the loading apron. Two options — pit installation (recessed floor pit, premium ergonomics) or ramp installation (operationally flexible, no civil work). Full engineering detail at Installation Guide: Pit vs Ramp.

Ventilation requirements

Steam exhaust during the 82°C rinse: ~60–80 m³/hour. Two ventilation options:

• Direct duct vent: 320 mm duct to exterior, with dampers and grease catchment
• Steam-condensation hood: condenses exhaust steam, recovers ~10% energy. Recommended near residential areas.

Detergent dispensing integration

The PTW-1900 includes built-in pump connections for two chemicals:

• Alkaline detergent — food-grade, pH 11.5–12.5, dosed by PLC per cycle
• Acid rinse — food-grade phosphoric or peroxyacetic, dosed by PLC for selected cycles

20L drum reservoirs sit beside the machine. PLC monitors levels and alerts on low-fill. Most installations partner with a local food-grade chemistry supplier (Ecolab, Diversey, Christeyns) for service contracts.

Water treatment integration

Water pre-treatment recommended in:

• Hard-water regions (calcium > 12°dH): scale buildup destroys heater elements. Install upstream water softener or RO unit.
• High-iron areas: iron staining on stainless. Install upstream iron filter.
• High-chloride municipal supply: chloride attacks stainless. RO pre-treatment recommended.

Safety features

• Door safety interlock: cycle does not run if doors are not securely latched
• Emergency stop: front-panel mushroom button kills all motion
• Temperature alarm: cycle aborts and alarms if booster fails to reach 82°C
• Door pressure relief: chamber depressurizes before doors can be opened post-cycle
• Earth/ground bond test point: accessible per IEC 60364 inspection requirements
• RCD/GFCI compatible: tested with 30 mA residual current protection

V-TAI site-assessment service

Submit your site drawings (CAD or hand-sketch) with utility availability. Our engineering team returns within 5 business days with:

• Confirmation the PTW-1900 fits your space
• Civil work specification (pit dimensions, ramp options)
• Utility tie-in drawings
• Steam-vs-electric recommendation
• Configuration recommendation (standard vs custom chamber, SUS304 vs SUS316)
• Detailed quote with FOB price + estimated freight + commissioning

Request a site assessment