User Manuals: DORCHESTER DR-LA 40 Water Heaters

Manuals and User Guides for DORCHESTER DR-LA 40 Water Heaters. We have 1 DORCHESTER DR-LA 40 Water Heaters manual available for free PDF download: User Manual

Dorchester DR-LA 40 User Manual (64 pages)

DR-LA Series of Hot Water Storage Heaters, Open Flue, Direct Gas Fired Hot Water Storage Heaters for Domestic Hot Water Installations, Natural Gas & LPG

Brand: Dorchester | Category: Water Heater | Size: 2 MB

Table of Contents
3
1 Introduction

7
- About the Water Heater
  7
- What to Do if You Smell Gas
  7
- Regulations and Documents
  7
- Target Groups
  8
- Maintenance
  9
- Forms of Notation
  9
- Overview of this Document
  10
2 Functioning of the Water Heater

11
- Introduction
  11
- Functional Description of the Water Heater
  12
- The Water Heater's Heating Cycle
  13
- Protection for the Water Heater
  13
- Safety of the Installation
  14
- Indicators and Alarms
  14
  - Volt Free Contacts
    14
- Options
  15
  - Lpg
    15
  - Unvented Supply
    15
  - Top to Bottom Circulation
    15
3 Installation

17
- Introduction
  17
- Packaging
  17
- Environmental Conditions
  17
  - Humidity and Ambient Temperature
    18
  - Maximum Floor Loading
    18
  - Working Clearances
    18
- Technical Specifications
  20
- Installation Diagram
  24
- Water Connections, Unvented
  25
  - Cold Water Side
    25
  - Top to Bottom Recirculating Pump
    25
  - Hot Water Side
    25
  - Drain Valve
    25
  - Circulation Pipe
    25
- Water Connections, Vented
  26
  - Cold Water Side
    26
  - Top to Bottom Recirculating Pump
    26
  - Hot Water Side
    26
  - Circulation Pipe
    26
- Gas Connection
  26
  - Flue Gas Discharge
    27
    
    Introduction
    27
    
    Fitting the Draught Diverter
    27
    
    Flue Gas Thermostat Assembly
    28
- Electrical Connection
  29
  - Introduction
    29
  - Preparation
    29
  - Mains Power
    30
- Checking the Supply Pressure and Burner Pressure
  31
- Conversion to a Different Gas Category
  33
4 Filling and Draining

39
- Introduction
  39
- Filling the Water Heater
  40
5 Controls

43
- Introduction
  43
- Control Panel
  43
- Explanation of the Symbols
  44
- ON/OFF Switch
  44
- Control Thermostat
  44
- Burner Control Reset Button
  44
- Flue Gas Thermostat Reset Button
  44
6 Status of the Water Heater

47
- Introduction
  47
- Operating States
  47
- Error States
  47
7 Starting up and Shutting down

49
8 Troubleshooting

51
9 Maintenance

57
- Introduction
  57
- Preparing for Maintenance
  57
- Water-Side Maintenance
  58
  - Introduction
    58
  - Checking the Anodes
    58
  - Descaling and Cleaning the Heater
    58
- Gas-Side Maintenance
  59
  - Introduction
    59
  - Cleaning the Burners
    59
  - Cleaning the Orifices
    60
  - Checking the Flue Baffles
    60
- Finalising Maintenance
  60
A Appendices

61
- Introduction
  61
- Electrical Diagram DR-LA
  62
  - Electrical Diagram DR-LA 30 through 95 and 110 (Natural Gas)
    62
  - Electrical Diagram DR-LA 110 (LP Gas)
    63

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User Manuals: DORCHESTER DR-LA 40 Water Heaters

Dorchester DR-LA 40 User Manual (64 pages)

Table of Contents

1 Introduction

2 Functioning of the Water Heater

3 Installation

4 Filling and Draining

5 Controls

6 Status of the Water Heater

7 Starting up and Shutting down

8 Troubleshooting

9 Maintenance

A Appendices

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