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Installation and Maintenance Manual
Waste Water Heat Recovery Unit
Assure Horizontal SHRU
These instructions are to be left with the user. The Assure Horizontal SHRU should only be installed by
a competent plumber who has the expertise to be guided by this manual.
Please read the entire manual before commencing the installation process.
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Table of Contents
Related Manuals for Baxi Assure Horizontal SHRU
Summary of Contents for Baxi Assure Horizontal SHRU
- Page 1 Waste Water Heat Recovery Unit Assure Horizontal SHRU These instructions are to be left with the user. The Assure Horizontal SHRU should only be installed by a competent plumber who has the expertise to be guided by this manual. Please read the entire manual before commencing the installation process.
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Page 2: Table Of Contents
Contents 1. Introduction 2. Product Technical Data 2.1. Dimensions 2.2. Technical Specifications 3. Pre-installation Requirements 3.1. Principle of Operation 3.2 Installation Configuration 3.3. Requirements for Recognition within SAP Calculations 3.3.1. Dwelling Evaluation 3.3.2. Drainage Connections 3.3.3. Plumbing Connections 3.3.4. Installation Location 4. -
Page 3: Introduction
2. Retained by the installer information, read it carefully before starting the installation or use of the product. 3. A copy sent to Baxi (See company details on Page 16). - Installation and associated work on this (Note: Building control officers may also request a... -
Page 4: Product Technical Data
2. PRODUCT TECHNICAL DATA 2.1. Dimensions (in millimetres) M 1/2" M 1/2" 2.2. Technical Specification Description Unit Value Heat exchanger material copper Body material Weight Temperature range ºC 0 - 60 L/min 25.0 Maximum shower flow Maximum mains water inlet pressure Heat exchanger pressure drop at 9.2 L/min —... -
Page 5: Pre-Installation Requirements
The Assure Horizontal SHRU must be located horizontally on a suitable base below the shower/bath, with the desired separation. The mains cold water is connected to the Assure Horizontal SHRU inlet and the preheated water from the Assure Horizontal SHRU is connected in one of the following 3 configurations System A: To the shower mixing valve (mains cold water) inlet and the DHW heater inlet. -
Page 6: Requirements For Recognition Within Sap Calculations
SAP calculations. 3.3.2. Drainage Connections The length of the drain pipe between the shower and the Assure Horizontal SHRU must be minimised, preferably to less than 3 metres. With reference to Approved Document – Part H (2002) of the Building Regulations, an appropriate method for preventing the ingress of foul sewer gases as a result of the WWHRS installation must be devised. -
Page 7: Plumbing Connections
3.3.3. Plumbing Connections The pipework between the Assure Horizontal SHRU preheated water outlet and the water heater and/or shower cold water inlet(s) (depending on installation configuration) must be: • Labelled to indicate that no other services can be interconnected, to prevent the future connection of any other service points, such as taps. -
Page 8: Installation
4. INSTALLATION 4.1. Package contents Nº Description Material Connection Quantity 8 Installation Instructions F10-60/170714 Shower/bath drain water input connection Ø40mm Female Shower/bath drain water output connection Ø40mm Male Mains water input connection Brass 1/2” Male Mains water output connection Brass 1/2”... -
Page 9: Installation Procedure
4.2 TWO METHODS OF INSTALLATION 4.2.1 Installation above the slab / coupled to the shower tray. Page 10-11 4.2.2 Installation under the slab / under the shower tray or bathtub with Page 12-14 desired separation. -
Page 10: Installation - Method
Horizontal SHRU already has a slope of 2% to ensure the correct flow of waste water from the shower. 5 5 5 5 5 5 Put the shower tray over the Assure Horizontal SHRU and align it. Remove the tray for implementing the next steps. - Page 11 (depending on installation configuration). Use both of the provided Male 1/2’’ fittings and proceed to seal in accordance with best plumbing practices. Connect the Assure Horizontal SHRU drain water outlet (2) to the drain pipe. We recommend that the installer performs a leak test on the mains water circuit and on the drain water circuit to ensure the integrity of the inlet and outlet connections.
- Page 12 4.2.2 INSTALLATION - METHOD 2 Ensure that there is enough space for an easy installation of Assure Horizontal SHRU. Install a 90° elbow Ø40mm. Ensure that elbow is fully inserted past the seal in the unit. Ø40mm If necessary, use a section of appropriately rated PVC of the...
- Page 13 Using suitable screws, fix the Assure Horizontal SHRU to the slab. Make sure that the unit is installed horizontally. The internal bore of the Assure Horizontal SHRU already has a slope of 2% to ensure the correct flow of waste water from the shower.
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Page 14: Maintenance
6. WARRANTY The Assure Horizontal SHRU warranty is valid for 2 years after the installation date. During the warranty period if the product has a defect in design, material or workmanship it should be returned to the place of purchase. -
Page 15: Safety
7. SAFETY 7.1. Tested for Drinking Water Consumption The Assure Horizontal SHRU complies with the requirements of the United Kingdom Water Supply European regulations EN 1717 (“Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow”) require that double walls must be used to separate drain water and drinking water. - Page 16 Baxi Customer Support 0344 871 1545 e&oe Baxi All descriptions and illustrations provided in this document have been carefully prepared but we reserve the right to make changes and Brooks House, improvements in our products which may affect the accuracy of the Coventry Road, information contained in this leaflet.