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Heatrae Sadia Multipoint 50 User Manual

Heatrae Sadia Multipoint 50
20 pages
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Installation and User Instructions
MULTIPOINT 30 & 50 Litre
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Heatrae Sadia Multipoint 50 Specifications

General IconGeneral
Capacity50 liters
Installation TypeWall Mounted
Temperature ControlAdjustable Thermostat
Wattage3 kW
Voltage230 V
Weight20 kg
Power SupplyMains Electric
Safety FeaturesThermal Cut-out
Water Pressure10 bar

Summary

1.0 INTRODUCTION

1.1 IMPORTANT POINTS

1.1.1 Temperature/Pressure Relief Valve

The factory-fitted valve must not be removed or restricted. Failure invalidates guarantee and risks danger.

1.1.2 Expansion Management

Expansion must be accommodated within the system using the provided Expansion Vessel and Check Valve.

1.1.3 Installation Regulations

Installation must comply with Building Regulation G3 and be done by a competent installer using supplied parts.

1.1.4 Regulatory Requirements

Installation must adhere to relevant Building Regulations and Water Fittings Regulations or Byelaws.

1.2 PACK CONTENTS

2.0 TECHNICAL SPECIFICATIONS

3.0 INSTALLATION

3.1 Location and Mounting

Covers unit location, wall support, space requirements, freeze prevention, and bracket/feet installation.

3.1.2 Bathroom Installation Rules

National Wiring rules may restrict installation in bathrooms.

3.2 PLUMBING

3.2.1 Valve and Vessel Plumbing

Plumb valves in sequence as shown, ensuring correct orientation. Support Expansion Vessel with its bracket.

3.2.2 Water Connection and Material Advice

Use 15mm copper tubes with compression fittings. Do not use solder joints. Plumbers paste is prohibited.

3.2.3 Inlet/Outlet and Supply Details

Inlet is BLUE, Outlet is RED. Consider outlet demands. Use WRAS Listed isolating valve. Fit drain cock.

3.3 DISCHARGE

3.3.1 G3 Discharge Requirements

Discharge must be conveyed safely to a visible point without causing danger.

3.3.2 Discharge Pipe Routing and Termination

Pipe must terminate visibly, be open to atmosphere, run downwards, and be frost-free.

G3 GUIDANCE SECTION 3.9

3.9.1 Discharge Pipe Sizing

Pipe size depends on hydraulic resistance (straight pipe equivalent) and BS 6700.

3.9.3 Vertical Section & Continuous Fall

Requires a 300mm vertical section below tundish and a continuous fall.

3.9.5 Discharge Visibility & Hazards

Discharges must be visible. Be aware of scalding water/steam hazards.

G3 GUIDANCE SECTION 3.9 (cont.)

3.9.6 Common Discharge Pipe Limits

Limit common pipes to 6 systems; common pipe must be one size larger than individual pipes.

3.9.7 Discharge Hazard Warning

Discharge consists of scalding water and steam; may damage certain materials.

3.4 ELECTRICAL REQUIREMENTS

3.4.1 Electrical Safety and Supply

Appliance must be earthed, use AC supply only. Disconnect supply before work. Use correct fuse and switch.

3.4.3 Wire Colour Coding

Details wire colours for EARTH (Green/Yellow), LIVE (Brown), and NEUTRAL (Blue).

4.0 COMMISSIONING

4.1 Plumbing and Electrical Checks

Verify filling, leaks, connections, and relief valves. Ensure electrical supply is safe.

4.2 Thermostat Adjustment and Locking

Set temperature via knob. Knob can be locked in mid-range or "hot" position via specific procedures.

5.0 USER DEMONSTRATION

5.1 Hot Water Explanation & 5.2 Malfunction Handling

Explain heater operation, set temperature, how to isolate supplies, and contact qualified personnel for faults.

5.3 Maintenance & 5.4 Literature

Explain maintenance necessity and hand over documentation.

User Advice and Warnings

Thermostat range, freeze prevention, indicator light, performance maintenance, and critical user notes on discharge.

6.0 MAINTENANCE

6.1 Maintenance Safety and Preparation

Disconnect supplies. Water may be hot. Follow steps for descaling, including shutting off, draining, and removing components.

6.2 Component Servicing and Re-assembly

Includes removing element plate, cleaning, re-assembling with new gasket, and re-commissioning.

6.8 Relief Valve and Expansion Vessel Checks

6.9 Manual Valve Operation

Manually operate valves to check water flow and reseating.

6.10 Pressure Reducing Valve Strainer

Clean the strainer in the pressure reducing valve.

6.11-6.15 Expansion Vessel Precharge

Check and recharge expansion vessel pre-charge pressure (0.35 MPa/3.5 bar) using a tyre pump.

7.0 FAULT FINDING

Faults and Troubleshooting

Covers common faults like water not heating, PRV discharge, no water flow, and milky water, with possible causes and actions.

8.0 SPARE PARTS

8.1 Ordering Spare Parts

Refer to Rating Label for correct part number. Do not use non-recommended parts.

9.0 ACCESSORIES

9.1 Accessory Usage

Heater can serve multiple outlets. Consider capacity and number of outlets.

9.2 Thermostatic Blending Valve

Thermostatic Blending Valve (Accessory Pack U3) recommended for use with this unit.

10.0 GUARANTEE

10.1 Guarantee Terms and Conditions

Five-year guarantee (2 years for element/controls) provided conditions are met.

10.2 Guarantee Exclusions

Not guaranteed against frost damage or excessive scale build-up.

11.0 ENVIRONMENTAL INFORMATION

11.1 Product Disposal

Product is manufactured from recyclable materials. Dispose of at Local Authority Recycling Centre.

11.2 Insulation Type

Insulation is by means of CFC-free polyurethane foam.

12.0 SPARES STOCKISTS

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