Potterton Gold - User Manual

1
UNVENTED MAINS PRESSURE WATER HEATERS
100, 120, 150, 170, 210, 250 and 300 LITRE CAPACITY DIRECT AND
INDIRECT MODELS INSTALLATION AND SERVICING INSTRUCTIONS
PACK CONTENTS
The POTTERTON GOLD unvented water heater incorporating immersion heater(s) and thermal controls
l Factory tted temperature/pressure relief valve l Cold water combination valve assembly
l Expansion vessel and mounting bracket l Tundish l Motorised valve (indirect models only) l
Compression nuts and olives l Immersion heater spanner l Installation instructions
IMPORTANT: PLEASE READ AND UNDERSTAND THESE INSTRUCTIONS
BEFORE COMMENCING INSTALLATION. PLEASE LEAVE THIS MANUAL
WITH THE CUSTOMER FOR FUTURE REFERENCE.
INTRODUCTION
The POTTERTON GOLD cylinder is a purpose designed
unvented water heater. The unit has a stainless steel inner
vessel, which ensures an excellent standard of corrosion
resistance. The outer casing is a combination of resilient
thermoplastic mouldings and plastic coated corrosion
proofed steel sheet. All products are insulated with CFC
free polyurethane foam to give good heat loss
performance. ( See Table 6 )
The unit is supplied complete with all the necessary
safety and control devices needed to allow connection
to the cold water mains. All these components are preset
and not adjustable.
NOTE: Prior to installation the unit should be stored
in an upright position in an area free from excessive
damp or humidity.
This appliance complies with the requirements of
the CE marking directive and is Kiwa approved to
show compliance with Building Regulations
(Section G3).
The following instructions are oered as a guide
to installation which must be carried out by a
competent plumbing and electrical installer in
accordance with Building Regulation G3, The
Building Standards (Scotland) Regulations 1990, or
The Building Regulations (Northern Ireland).
THE BENCHMARK SCHEME
Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers
are provided with the correct equipment for their needs, that it is installed, commissioned and serviced in
accordance with the manufacturer’s instructions by competent persons and that it meets the requirements of
the appropriate Building Regulations. The Benchmark Checklist can be used to demonstrate compliance with
Building Regulations and should be provided to the customer for future reference.
Installers are required to carry out installation, commissioning and servicing work in accordance with the
Benchmark Code of Practice which is available from the Heating and Hotwater Industry Council who manage
and promote the Scheme. Visit www.centralheating.co.uk for more information.
IMPORTANT NOTE TO USER: PLEASE REFER TO THE USER INSTRUCTIONS SECTION ON PAGES 19 AND 20 FOR
IMPORTANT INFORMATION WITH RESPECT TO THE BENCHMARK SCHEME

Summary

Introduction

The Benchmark Scheme

Scheme for installation, commissioning, and servicing of domestic hot water systems.

General Requirements

Limitations

Installation - General

General guidance for pipe fittings, cold feed, and valve assembly installation.

Discharge Pipework

G3 Requirement

Building Regulation G3 requirement for safe discharge conveyance.

Discharge Pipes from Safety Devices

Guidance on discharge pipes from relief valves and manifolds.

Tundish

Location and fitting requirements for the tundish.

Discharge Pipe D2

Requirements for the discharge pipe from the tundish.

Termination of Discharge Pipe

Worked Example of Discharge Pipe Sizing

Example calculation for sizing discharge pipes based on resistance and fittings.

Direct Models

Installation - Direct Units

Plumbing and electrical installation details for direct models.

Direct Units Electrical Supply

Direct Units Safety

Critical safety warnings for direct models, including handling covers and thermal cut-outs.

Indirect Units

Installation - Indirect Units

Indirect Units Electrical Supply

Commissioning

Filling the Unit with Water

System Checks

Checks for leaks, strainer cleaning, and relief valve operation.

Commissioning Direct Units

Commissioning Indirect Units

Maintenance

Maintenance Requirements

Essential checks for safety and performance, like valve inspection.

Safety Valve Operation

Re-commissioning

User Instructions

Warnings

Critical safety warnings for users regarding relief valves and tampering.

Benchmark

Fault Finding & Servicing

Operational Faults

Common operational issues and their causes, like expansion vessel air volume.

Fault Finding

Guidance on using the fault finding chart and contacting support.

Mains Pressure Hot Water Storage System Commissioning Checklist

Guarantee

Technical Support & Spares

Potterton Gold Specifications

General

Mounting	Wall-mounted
Efficiency Rating	A
Type	Combination Boiler
Fuel Type	Natural Gas
Heating Flow Rate	Varies by model
Warranty	2 years