Baxi Solarflo Installation Manual

Evacuated tube collector

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Commissioning, maintenance & servicing manual (32 pages)

Installation manual (25 pages)

User manual (12 pages)

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Page 1 Commissioning, Maintenance & Servicing Guide Please read these instructions before installing or commissioning. Solarflo (Solar Thermal Domestic Hot Water System) should only be installed by a competent person. PLEASE LEAVE THESE INSTRUCTIONS WITH THE USER FOR SAFE KEEPING. © Baxi Heating UK Ltd 2008...
Page 2: Table Of Contents
Installation of Solar Controller © Baxi Heating UK Ltd 2008. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, or stored in any retrieval system of any nature (including...
Page 3: Introduction To Solar
Introduction to Solar Description Thank you for purchasing a high quality Solarflo Solar Thermal Domestic Hot Water System. The sun is the ultimate source of most of our renewable energy supplies. Energy from the sun is clean and abundant. There is a widely held opinion that the UK does not have enough sun to make solar systems worthwhile.
Page 4: Solar Collector Specifications
η = η o - a 1 .(t m - t a )/G - a 2 .(t m - t a ) Based on: aperture area absorber area Fig. 3 η o = 0.779 0.832 a 1 = 1.07 W/m 1.14 W/m a 2 = 0.0135 W/m 0.0144 W/m Flow Rate (l/min) © Baxi Heating UK Ltd 2008...
Page 5: Pump Station Specifications
Setting 3: Maximum Pump Head: 6 metres Maximum Pump Capacity: 4.5 m3/h / 3.5 m3/h Flow meter scale: 2 to 15 l/min Features Air Separator Adjustable Control Valves Drain Point Temperature Gauges Flow Gauge © Baxi Heating UK Ltd 2008...
Page 6: Solar Controller
However, in the event of an installation having a ‘Y’ plan boiler system that is to be controlled by the solar controller, a relay is required (not supplied).This is available as a Baxi Spares Item, Code No. 5122765. © Baxi Heating UK Ltd 2008...
Page 7: Ancillary Components
0.4 0.5 NOTE: For optimum operation the cold connection must be Flow l/s taken from a balanced cold water feed. For details of balanced cold water feed please refer to the cylinder manufacturer’s instructions. © Baxi Heating UK Ltd 2008...
Page 8: Cylinder Specifications
Insert sensor here Anode Not required. to sensor pocket For full technical and performance specification see cylinder installation instructions. Reassemble in reverse order Solar coil Solar cylinder sensor position controls housing remove screw for access © Baxi Heating UK Ltd 2008...
Page 9 Anode Not required. For full technical and performance specification see cylinder installation instructions. Detailed installation and commissioning instructions are supplied with the cylinders. © Baxi Heating UK Ltd 2008...
Page 12: Installation Of Collector Sensor
Solar Collector sensor may be extended (using the 13m extension cable supplied) as described in section 10.7. The sensor may be extended up to 50m but 0.75mm screened flex must be used, see page 22 section 10.7. © Baxi Heating UK Ltd 2008...
Page 13: Installation Of Pump Station
Solar expansion vessel complete with mounting bracket assembly. Expansion vessel connecting flexible pipe. Expansion vessel self sealing connection. Thermostatic Blending valve. 2m insulated flexible steel hoses for connection to collectors 30m coil with insulation and fittings (not shown) © Baxi Heating UK Ltd 2008...
Page 14 30 metres of pipework when connected to a 30 tube collector. The pump station has a solar controller (Fig. 15 Item 6) integrated into the front insulation moulding.This is pre-wired to the solar pump. © Baxi Heating UK Ltd 2008...
Page 15 Fit earthing clamps to the solar primary flow and return pipes and connect the earth clamps to the earthing system of the property using an earth bonding cable of min. 6mm diameter. © Baxi Heating UK Ltd 2008...
Page 16 The Solarflo is supplied with 2x2m pre insulated flexible stainless steel tubes and with additional lengths (30m) of stainless steel flexible tubes and high temperature insulation. © Baxi Heating UK Ltd 2008...
Page 17 Push the rear insulation moulding over the wall brackets and refit the hydraulic assembly (Fig 19. Item 6) to the mounting clips on the wall brackets. © Baxi Heating UK Ltd 2008...
Page 18 Drain valve must be suitable for glycol, 180° C and 6 bar. Connecting the solar cylinder Flow to cylinder For detailed installation instructions refer to the installation instructions supplied with the solar cylinder. © Baxi Heating UK Ltd 2008...
Page 19: Installation Of Solar Controller
(SELV) (temperature sensors and flow transmitters).The terminals on the left side of the terminal block are for 230/240 V~ connections. © Baxi Heating UK Ltd 2008...
Page 20 However, in the event of an installation having a ‘Y’ 230V/240V~ Mains supply plan boiler system that is to be controlled by the solar controller, a relay is required (not supplied).This is available as a Baxi Spares Item, Code No. 5122765. © Baxi Heating UK Ltd 2008...
Page 21 Type 2: The function must be switched “on” when commissioning 1 collector, 2 storage tanks the Solar Controller. Refer to the Solarflo “Commissioning, with 2 pumps Maintenance & Servicing Guide” for further details. Tcoll For System Types 2 and 4 the additional pump (P2) can be ordered as an accessory, Part No.
Page 22 Note: If boiler has PL - Pump Live connection, pump must be connected to this (4), if not Pump Live should be connected to SL (5). Sensors MUST NOT be connected to the 230/240V~ B. Solarflo in conjunction with auxiliary heating by boiler - reheat control terminals. via solar controller.
Page 23 Programmable Room Stat Terminal Box (Not supplied) NOT USED Solar Cylinder Auxiliary Controls Cylinder Safety Valve 3 Port Mid Position Valve CH Pump Relay See Fig. 21 Solar Differential Controller Solar Pump Solar O/Temp Cutout Relay © Baxi Heating UK Ltd 2008...
Page 24 All goods are sold subject to our standard Conditions of Sale which are available on request. B AXI A Trading Division of Baxi Heating UK Ltd (3879156) A Division of Baxi Group Brooks House, Coventry Road,Warwick. CV34 4LL...

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