I-SECURE H21XL ChannelPlus Umhlahlandlela Wokufaka Uhlelo Lwamanzi Ashisayo
Funda indlela yokufaka nokuhlela i-SECURE H21XL ChannelPlus Hot Water Programmer, ethatha indawo eqondile yamamodeli we-H21XL, H27XL kanye ne-H27ZXL. Lo mhleli weziteshi ezimbili unikeza izikhathi zokusebenza ezifika kwezintathu zansuku zonke kanye nokulawula okuzimele kwe-Boost and Advance. Qinisekisa ukufakwa nokuxhumeka okufanele ngokulandela imithetho ye-IET yezintambo.