Key Features

• Constant-flow dMEV with integral pressure sensor (stable airflow). 

• Humidity-triggered boost plus 0–60 min boost delay/overrun timer. 

• Quiet, energy-efficient DC/EC motor; SAP10/PCDB listed. 

• 100mm (4") connection; low-profile aesthetic. 

• IPX4 when ceiling-mounted with TP646 kit; wall kits TP645 optional. 

• Fast commissioning via 4-button LED display on the unit. 

What’s Included

• Titon TP640Hi fan unit with fascia

• Fixings and installation/user instructions (accessories sold separately)

Ideal For

• Bathrooms, WCs, ensuites, kitchens, utilities needing continuous background extraction with humidity boost. 

Installation Notes

• Mount on wall or ceiling near the moisture source; keep duct runs short with smooth rigid ducting and gentle bends.

• For ceiling installs, use TP646 to maintain IPX4. Terminate to a weatherproof external grille. 

• Commission trickle/boost to design rates; humidity boost is designed not to exceed 16 l/s. 

Maintenance

• Wipe fascia; vacuum the inlet periodically.

• Check duct seals and test humidity/timer functions seasonally. 

Technical Overview (drop your exact datasheet numbers here)

• Duct size: 100 mm (4")

• Controls: Humidistat + adjustable timer; trickle/boost with constant-flow regulation

• Supply: 220–240 V AC; isolated fused spur

• Protection: IPX4 (with TP646 when ceiling-mounted)

• Interface: 4-button LED setup/display