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Installation and User Instructions
Rectangular Combination Water Heaters
Models: R25, R45, R70, R115
PACK CONTENTS
Heater, Float Valve & Arm, Float, Overflow Fitting, Dip Tube, Screened
Breather, Wall Mounting Collars & Installation and User Instructions.
WARNING
This water heater must only be installed by qualified persons.
Please read and understand these instructions before starting work.
Please leave this leaflet with the user following installation.
SY0019200 Revision 6.
1
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Summary of Contents for Santon R45
- Page 1 Installation and User Instructions Rectangular Combination Water Heaters Models: R25, R45, R70, R115 PACK CONTENTS Heater, Float Valve & Arm, Float, Overflow Fitting, Dip Tube, Screened Breather, Wall Mounting Collars & Installation and User Instructions. WARNING This water heater must only be installed by qualified persons.
- Page 2 INTRODUCTION The R Series units are designed to supply hot water for handwashing, dishwashing and general purposes to cloakrooms, canteens and kitchen areas. Containing an integral cold water cistern, they are ideal for installations where the cold feed is from the mains supply but an unvented situation is impractical.
- Page 3 1.0 IMPORTANT INSTALLATION POINTS 1.1 Ensure that the wall or supporting structure is of adequate strength to support the heater. (Refer to table 1.) 1.2 The Water Regulations require a minimum of 350 mm unobstructed space above the heater lid to allow the float valve to be replaced. However, a space of 200 mm is sufficient to replace the R Series float valve.
- Page 4 2.1 Decide on the best position for the heater taking account of paragraphs 1.2 and 1.3 and inlet and outlet connections. The float valve and overflow assembly can be fitted on either side of the heater. 2.2 Using the template provided mark the position of the top two fixing holes. Before drilling the wall ensure there are no hidden services such as water, gas or electrical cables embedded in the area of the wall to be drilled.
- Page 5 2.5 Fit the overflow fitting complete with dip tube. (Refer to figure 4.) Fit the blanking plugs in the unused holes. RUBBER WASHER NYLON SPACER OVERFLOW ASSEMBLY DIP TUBE CISTERN OUTER CASE TANK FIG 4 : OVERFLOW - FITTING 2.6 Make the electrical connection to the heater and set the controls. Do not switch on. See section 3.
- Page 6 3.0 INSTALLATION - ELECTRICAL REQUIREMENTS WARNING: This appliance must be earthed. It is suitable for 230/240V a.c. supply only. Installation must be in accordance with BS 78671, Requirements for Electrical Installations (I.E.E. Wiring Regulations.) 3.1 The electrical supply should be fused at 13 A and be via a readily accessible double pole isolating switch with a contact separation of at least 3mm in both poles.
- Page 7 CONTROL THERMOSTAT RE-SET BUTTON THERMAL CUT-OUT FIG 5 : ELECTRICAL CONNECTIONS 4.0 TEMPERATURE SETTINGS Control Thermostat : The heater is fitted with an adjustable Cotherm TSD 01105 rod type thermostat. This does not have a calibrated scale. The minimum setting (approximately18°C) is indicated by “-”...
- Page 8 5.0 COMMISSIONING 5.1 Do not switch on the electrical supply until the unit has been filled with water and checked for leaks. 5.2 Ensure the isolating valve on the outlet is open and that all the taps connected to the outlet are closed. 5.3 Check the cold feed and vent pipe are free from obstruction.
- Page 9 6.0 MAINTENANCE - HEATING ELEMENT REPLACEMENT 6.1 Isolate the unit from the electrical supply. 6.2 Check the water temperature from a hot tap, and run until cold. 6.3 Turn off the water supply to the unit at the servicing valve. 6.4 Drain the unit by opening a outlet hot tap and removing the drain nut on the underside.
- Page 10 7.0 SPARE PARTS The following spare parts are available for your Santon water heater. Please refer to the Rating Label on the bottom of your heater before ordering to ensure the correct spare part is obtained. IMPORTANT NOTE On all heaters installed outside the UK it is essential to quote all the model details on the rating label especially voltage and kW rating.
- Page 11 8.0 FAULT FINDING Disconnect the electrical supply before removing the terminal cover. It is recommended that any service operations on this Santon heater are carried out by a competent person. FAULT POSSIBLE CAUSES ACTION Water not heating 1. Electrical supply fault.
- Page 12 This Guarantee in no way affects the statutory rights of the consumer. The policy of Santon is one of continuous product development and, as such, we reserve the right to change specifications without notice. ENVIRONMENTAL INFORMATION Santon products are manufactured from many recyclable materials.
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