--- title: Puff - Washing System description: Nowadays is essential that ovens, for professional kitchens, have an automatic washing system both for labour costs and for safety/hygiene reasons The washing system is located under the chamber and i --- [Skip to content](https://support.lainox.com/en/knowledge/puff-5-1726818372880#main-content) - [English](https://support.lainox.com/en/knowledge/puff-5-1726818372880) - [Deutsch](https://support.lainox.com/de/knowledge/puff-5-1726818799981) - [Español](https://support.lainox.com/es/knowledge/puff-5-1726818651783) - [Français](https://support.lainox.com/fr/knowledge/puff-4) - [Italiano](https://support.lainox.com/knowledge/puff-5-1726819111366) English Show submenu for translations ![LAINOX bianco 500.png\]](https://support.lainox.com/hs-fs/hubfs/LAINOX%20bianco%20500.png?height=40&name=LAINOX%20bianco%20500.png) Open main navigation Close main navigation - - [English](https://support.lainox.com/en/knowledge/puff-5-1726818372880) - [Deutsch](https://support.lainox.com/de/knowledge/puff-5-1726818799981) - [Español](https://support.lainox.com/es/knowledge/puff-5-1726818651783) - [Français](https://support.lainox.com/fr/knowledge/puff-4) - [Italiano](https://support.lainox.com/knowledge/puff-5-1726819111366) English Show submenu for translations - [Go to Lainox.com](https://www.lainox.com/) [Go to Lainox.com](https://www.lainox.com/) Lainox Support - There are no suggestions because the search field is empty. 1. [Home](https://support.lainox.com/en/knowledge) 2. [Puff](https://support.lainox.com/en/knowledge/puff) 3. [How it works](https://support.lainox.com/en/knowledge/puff#how-it-works) # Puff - Washing System #### WASHING SYSTEM ![](https://support.lainox.com/hs-fs/hubfs/image-png-Sep-20-2024-07-46-48-2338-AM.png?width=688&height=307&name=image-png-Sep-20-2024-07-46-48-2338-AM.png) Nowadays is essential that ovens, for professional kitchens, have an automatic washing system both for labour costs and for safety/hygiene reasons The washing system is located under the chamber and is easily accessible from the back of the oven. In case of washing system there is an additional water inlet; we suggest cold not softened water.   ![](https://support.lainox.com/hs-fs/hubfs/image-png-Sep-20-2024-07-47-15-2830-AM.png?width=688&height=296&name=image-png-Sep-20-2024-07-47-15-2830-AM.png) **A Detergent pump** PD sucks the detergent from the tank and enters it into the distribution system PD is activated, by relay board O40 to pump a predetermined amount of detergent.   ![](https://support.lainox.com/hs-fs/hubfs/image-png-Sep-20-2024-07-47-41-1958-AM.png?width=1355&height=582&name=image-png-Sep-20-2024-07-47-41-1958-AM.png) **B Anti-return system** The system allows you to connect the use of the S7 electrovalve and the PD cleaning pump to the storage tank which is a large section tube The system allows to connect the two inlets, water and detergent, with the chamber input circuit and eliminate the risk that there may be return to the detergent supply circuit towards the watersystem and water towards the detergent tank.   ![](https://support.lainox.com/hs-fs/hubfs/image-png-Sep-20-2024-07-47-54-4475-AM.png?width=1355&height=582&name=image-png-Sep-20-2024-07-47-54-4475-AM.png) **C Solenoid valve S7** A washing solenoid valve S7 that injects water at the mains pressure into the distribution system. S7 is activated by relay board O41   ![](https://support.lainox.com/hs-fs/hubfs/image-png-Sep-20-2024-07-48-05-2879-AM.png?width=1355&height=582&name=image-png-Sep-20-2024-07-48-05-2879-AM.png) **D Anti-return system** The storage tank is nothing more than a large pipe where the detergent sucked by the PD detergent pump is accumulated. Once the necessary amount of detergent is collected, the S7 electrovalve is opened and the water pressure pushes the detergent into the chamber through the washing flange The size of the storage tank, basically the length of the pipe, depends on the size of the device   ![](https://support.lainox.com/hs-fs/hubfs/image-png-Sep-20-2024-07-48-17-4692-AM.png?width=1355&height=597&name=image-png-Sep-20-2024-07-48-17-4692-AM.png) **E Washing flange** The washing flange allows to enter the detergent and water of the washing system into the cooking chamber by spraying all surfaces. The system consists of a flange fixed to the chamber, with an o-ring a) that allows you to seal the flange on the chamber, and a rotating shaft b) moved by the washing motor   ![](https://support.lainox.com/hs-fs/hubfs/image-png-Sep-20-2024-07-48-27-7279-AM.png?width=1328&height=587&name=image-png-Sep-20-2024-07-48-27-7279-AM.png) **E Washing flange** The flange-rotating shaft system is held together by a seeger ring **c)** whose seat is on the rotating shaft. There are also two seals that guarantee flange sealing: a front o-ring **d)** and a radial rear seal **e)**. The tighteness of the washing flange must be verified annually and every 24 months (12 if frequent washing is carried out) the sealing seals, available as a kit (LAR70045120), should be replaced   ![](https://support.lainox.com/hs-fs/hubfs/image-png-Sep-20-2024-07-48-41-7420-AM.png?width=1355&height=597&name=image-png-Sep-20-2024-07-48-41-7420-AM.png) **F Washing motor** The washing arm is moved by the washing engine which is fixed by a grain to the rotating shaft.  The washing engine is powered together with the S7 by the relay board O41   #### WASHING CONTROL ![](https://support.lainox.com/hs-fs/hubfs/image-png-Sep-20-2024-07-49-19-2695-AM.png?width=421&height=350&name=image-png-Sep-20-2024-07-49-19-2695-AM.png) The washing system operates with liquid detergent contained in 5Kg flat tanks Since they are external tanks, there is no way to verify the level of the product contained in them but, based on of the density and activation time, the system estimates the accumulated consumption and, when the theoretical level drops below 20%, at the start of the wash the system asks to verify the level of the tank.   **Start-up phase** Washing must always start from a temperature of 50°C. If the temperature is higher, the system asks for cooling by opening the door; if the temperature is lower, the chamber is heated. If the operator ignores the request or if the door is opened and immediately closes the system, after a second warning, attempts to cool the chamber by opening the flap and injecting water on the fan.   **Detergentsprayingphase** This phase enters detergent into the chamber first activating PD to accumulate the detergent and then activating the S7 washing solenoid valve and ML washing motor at the same time, to spray the detergent into the chamber. Normally this phase is carried out by rotating the fan clockwise and counterclockwise to improve the distribution of the chemical.   **Detergent action phase** At this stage the detergent is left to act possibly facilitating the action with the temperature.   **Rinsingphase** At this stage the chamber is rinsed by injecting water from the washing arm and the fan injector.   **Dryingphase** At this stage the chamber is partially dried, to improve the action of the next detergent entry, or completely at the end of washing (not for short washes). - [Naboo](https://support.lainox.com/en/knowledge/naboo#main-content) - [Installation](https://support.lainox.com/en/knowledge/naboo#installation) - [Use](https://support.lainox.com/en/knowledge/naboo#use) - [Messages](https://support.lainox.com/en/knowledge/naboo#messages) - [How to](https://support.lainox.com/en/knowledge/naboo#how-to) - [How it works](https://support.lainox.com/en/knowledge/naboo#how-it-works) - [Sapiens](https://support.lainox.com/en/knowledge/sapiens#main-content) - [Installation](https://support.lainox.com/en/knowledge/sapiens#installation) - [Use](https://support.lainox.com/en/knowledge/sapiens#use) - [Messages](https://support.lainox.com/en/knowledge/sapiens#messages) - [How to](https://support.lainox.com/en/knowledge/sapiens#how-to) - [How it works](https://support.lainox.com/en/knowledge/sapiens#how-it-works) - [Neo24hours](https://support.lainox.com/en/knowledge/neo24hours#main-content) - [Installation](https://support.lainox.com/en/knowledge/neo24hours#installation) - [Use](https://support.lainox.com/en/knowledge/neo24hours#use) - [Messages](https://support.lainox.com/en/knowledge/neo24hours#messages) - [How to](https://support.lainox.com/en/knowledge/neo24hours#how-to) - [How it works](https://support.lainox.com/en/knowledge/neo24hours#how-it-works) - [Oracle](https://support.lainox.com/en/knowledge/oracle#main-content) - [Installation](https://support.lainox.com/en/knowledge/oracle#installation) - [Use](https://support.lainox.com/en/knowledge/oracle#use) - [Messages](https://support.lainox.com/en/knowledge/oracle#messages) - [How to](https://support.lainox.com/en/knowledge/oracle#how-to) - [How it works](https://support.lainox.com/en/knowledge/oracle#how-it-works) - [Puff](https://support.lainox.com/en/knowledge/puff#main-content) - [Installation](https://support.lainox.com/en/knowledge/puff#installation) - [Use](https://support.lainox.com/en/knowledge/puff#use) - [Messages](https://support.lainox.com/en/knowledge/puff#messages) - [How to](https://support.lainox.com/en/knowledge/puff#how-to) - [How it works](https://support.lainox.com/en/knowledge/puff#how-it-works) - [Zoom](https://support.lainox.com/en/knowledge/zoom#main-content) - [Installation](https://support.lainox.com/en/knowledge/zoom#installation) - [Use](https://support.lainox.com/en/knowledge/zoom#use) - [Messages](https://support.lainox.com/en/knowledge/zoom#messages) - [How to](https://support.lainox.com/en/knowledge/zoom#how-to) - [How it works](https://support.lainox.com/en/knowledge/zoom#how-it-works) [![Chill listening crop-3](https://support.lainox.com/hs-fs/hubfs/LAINOX-1.png?width=88&height=24&name=LAINOX-1.png "Chill listening crop-3")](https://lainox.com/) Copyright © 2026, LAINOX Ali Group S.r.l. a Socio Unico