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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.

Installation and Maintenance Manual

Waste Water Heat Recovery Unit

 

Assure Horizontal SHRU

Summary of Contents for Assure Horizontal SHRU

Page 1: ...al 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 Installation and Maintenance Manual Waste Water Heat Recovery Unit Assure Horizontal SHRU ...

Page 2: ...iguration 3 3 Requirements for Recognition within SAP Calculations 6 6 6 7 3 3 1 Dwelling Evaluation 3 3 2 Drainage Connections 3 3 3 Plumbing Connections 3 3 4 Installation Location 7 8 8 10 12 14 14 15 15 4 Installation 4 1 Package Contents 4 2 Installation Procedure 4 2 1 Installation Method 1 4 2 2 Installation Method 2 5 Maintenance 6 Warranty 7 Safety 7 1 Tested for Drinking Water Consumptio...

Page 3: ...ired throughout the life of the product This product does not have a waste trap It is a requirement of the installation to fit an in line trap upstream from the product itself NCM SAP recognition For the recognition of the Assure Horizontal SHRU energy saving performance within the National Calculation Method NCM for energy rating of dwellings known as SAP Standard Assessment Procedure it is vital ...

Page 4: ...eat exchanger material copper Body material ABS Weight kg 5 0 Temperature range ºC 0 60 L min 25 0 Maximum mains water inlet pressure Bar 6 0 Heat exchanger pressure drop at 9 2 L min mains water Bar 0 36 Heat exchanger pressure drop at 12 5 L min mains water Bar 0 65 130 96 540 53 487 456 84 M 1 2 M 1 2 90 0 20 Ø40 83 428 29 25 46 Maximum shower flow ...

Page 5: ...ath 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 This will provide the maximum amount of recovered energy System B To the shower mixing valve mains cold w...

Page 6: ...iguration the DHW heater must accept a pre heated water inlet Max 30 C The shower s must use a thermostatic mixing valves The Assure Horizontal SHRU must be installed within the dwelling heated envelope NOTE Whilst the Assure Horizontal SHRU can be connected to instantaneous electric showers such combinations are not recognised in SAP calculations The length of the drain pipe between the shower an...

Page 7: ...es Compliance Guide 2013 Edition The WWHRS preheated water outlet is only connected to the water heater and shower cold water inlet s but not any other service points such as taps If shut off valves are specified for the Assure Horizontal SHRU inlet and or outlet they must be of the full flow non restricting type 3 3 4 Installation Location The location must allow access to all parts and easily allow...

Page 8: ...1 5 Nº Description Material Connection Quantity 1 Shower bath drain water input connection ABS Ø40mm Female 1 2 Shower bath drain water output connection PVC Ø40mm Male 1 3 Mains water input connection Brass 1 2 Male 1 4 Mains water output connection Brass 1 2 Male 1 5 Adjustable foot Steel Plastic 4 ...

Page 9: ... 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 desired separation Page 12 14 ...

Page 10: ... 1 2 4 3 Always ensure that the pipe connecting the drain and Assure Horizontal SHRU has an inclination α between 1 and 2 Using a spirit level and the adjustable feet 5 adjust the unit s height and position it horizontally in its final location 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 ...

Page 11: ...llation 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 Assemble the waste trap and...

Page 12: ...easy installation of Assure Horizontal SHRU Ø40mm Install a 90 elbow Ø40mm Ensure that elbow is fully inserted past the seal in the unit If necessary use a section of appropriately rated PVC of the desired length 4 2 2 INSTALLATION METHOD 2 1 2 3 ...

Page 13: ...ater from the shower Connect the mains cold water to the unit s inlet 3 and preheated water outlet 4 from the unit to the cold side of the shower mixer tap and or domestic water heater depending on installation configuration Use both of the provided male 1 2 fittings and proceed to seal in accordance with best plumbing practice Connect the Assure Horizontal SHRU drain water outlet 2 to the drain p...

Page 14: ...ns Unauthorized repairs and modifications 7 8 The Assure Horizontal SHRU has been designed to require minimal maintenance other than regular cleaning of traps and filters removing all hair and dirt thus preventing blockages To maintain efficiency it is recommend you periodically dissolve soap residue on the inside copper pipe with your usual drain cleaner and or to clean the unit with a pipe clean...

Page 15: ... the pipes does not depend on water pressure 7 SAFETY 7 1 Tested for Drinking Water Consumption 7 2 Legionella Prevention The Assure Horizontal SHRU design also complies with the Directive Legionella Prevention The unit has no dead spaces and is subject to high flow rates which prevent water from stagnation Drain water does not remain in the unit for long periods of time since the construction gua...

Page 16: ...lustrations provided in this document have been carefully prepared but we reserve the right to make changes and improvements in our products which may affect the accuracy of the information contained in this leaflet All goods are sold subject to our standard Conditions of Sale which are available on request 7775228 01 12 20 ...

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