DORCHESTER DR-TC 60 Installation, Commissioning And Maintenance Instructions

Room sealed or open flue, direct gas fired condensing hot water storage heaters with premix burner and automatic ignition for domestic hot water

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Installation, commissioning and maintenance instructions (120 pages)

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DR-CC 12-160, 12-200, 20-160, 20-200, 24-245,

Room Sealed or Open Flue, Direct Gas Fired Hot Water Storage Heaters

with Intergrated Solar Coil and with Automatic Ignition for

Room Sealed or Open Flue, Direct Gas Fired Condensing Hot Water

Storage Heaters with Premix Burner and Automatic Ignition for

NOTE:

THESE INSTRUCTIONS MUST BE READ AND UNDERSTOOD BEFORE

INSTALLING, COMMISSIONING, OPERATING OR SERVICING EQUIPMENT.

THIS WATER HEATER IS FOR USE ON GROUP H NATURAL GAS (2 FAMILY) I ,

OR PROPANE (3 FAMILY) I . PLEASE ENSURE RELEVANT INFORMATION

REQUIRED WITHIN DOCUMENT IS FOUND RELATING TO GAS TO BE FIRED

BEFORE FIRING HEATER.

THIS WATER HEATER COMPLIES WITH ALL RELEVANT EUROPEAN DIRECTIVES.

PUBLICATION NO. 500001196

PUBLICATION NO. XXXXXXXX

ISSUE: "E"

ISSUE: "A".

MARCH 2018

MARCH 2016

DORCHESTER

DR-CC 12-160 to DR-CC 32-380

DR-TC 40 and DR-TC 60

CONDENSING HOT WATER

SOLAR HOT WATER

STORAGE HEATERS

Installation, Commissioning

and Maintenance Instructions

Installation, Commissioning

and Maintenance Instructions

DORCHESTER MODELS: DR-TC 40, 60

DORCHESTER MODELS:

24-285, 32-285, 32-285, 32-380

Domestic Hot Water Installations

0312934

0311745

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Summary of Contents for DORCHESTER DR-TC 60

Page 1 DORCHESTER DORCHESTER DR-CC 12-160 to DR-CC 32-380 DR-TC 40 and DR-TC 60 CONDENSING HOT WATER SOLAR HOT WATER STORAGE HEATERS STORAGE HEATERS Installation, Commissioning and Maintenance Instructions Installation, Commissioning and Maintenance Instructions DORCHESTER MODELS: DR-TC 40, 60 DORCHESTER MODELS: DR-CC 12-160, 12-200, 20-160, 20-200, 24-245,...
Page 3: Preface
Preface Copyright Copyright © 2018 Hamworthy Heating All rights reserved. Nothing from this publication may be copied, reproduced and/or published by means of printing, photocopying or by whatsoever means, without the prior written approval of Hamworthy Heating. Hamworthy Heating reserves the right to modify specifications in this manual. Trademarks Brand names in this manual are registered trademarks of their respective owners.
Page 4: Regulations
Refer to the appendix Declaration of conformity (see section 13.5). Regulations Gas Safety (installations and Use) Regulations 1998 (as amended). It is law that all gas appliances are installed by competent persons, in accordance with the above regulations. Failure to install appliances correctly could lead to prosecution. It is in your own interest and that of safety, to ensure that this law is complied with.
Page 5: Contact Information
Institute of Gas Engineers and Managers (IGEM) Publications • IGE/UP/1 Edition 3: Strength testing, tightness testing and direct purging of industrial and commercial gas installations. • IGE/UP/1A:Edition 3: Strength testing, tightness testing and direct purging of small low pressure industrial and commercial natural gas installations.
Page 7: About This Manual
About this manual Scope This manual gives information about safe and correct use of the water heater and how installation, maintenance and service activities have to be done correctly. You must obey the instructions in this manual. Caution Read this manual carefully before you start the water heater. It can cause personal injury and damage to the water heater when you do not read the manual and/or do not obey the instructions.
Page 8: Document Identification
This manual contains the following text styles/symbols for situations that may endanger users/engineers, cause damage to equipment or need special attention: Note A note gives more information on a topic. Caution Obey the caution instructions to prevent damage of the water heater. Warning Obey the warning instructions to prevent danger of personal injury, and serious damage to the water heater.
Page 9: Table Of Contents
Table of Contents Preface..................3 Copyright................3 Trademarks............... 3 Warranty................3 Liability................3 Compliance............... 3 Regulations............... 4 Contact information............5 About this manual............... 7 Scope................7 Target group..............7 Notation conventions............7 Document identification............8 User part..............13 Introduction................15 Safety..................17 Interface................... 19 Operator interface............
Page 10 4.2.1 Switch to ON mode............25 4.2.2 Set the water temperature..........25 Turn off the water heater...........26 4.3.1 Turn off for a short period..........26 4.3.2 Isolate from the mains............26 4.3.3 Turn off for a long period........... 26 Installation, Maintenance and Service part....27 Introduction................
Page 11 8.7.2 C13/C33 parallel systems..........46 8.7.3 C43/C53/C63 systems............48 Electrical connections............49 8.8.1 Preparation..............49 8.8.2 Mains power..............50 8.8.3 Optional electrical connections..........50 8.8.4 Finalization..............51 Commissioning..............51 8.9.1 Filling................52 8.9.2 Air pressure differential............. 52 8.9.3 Gas supply pressure............53 8.9.4 value................54 8.9.5 Turn on the water heater........... 55 8.10 Decommisioning...............
Page 12 12.1.1 General errors..............71 12.1.2 Displayed errors............... 73 12.1.3 Warnings.................80 Appendices................81 13.1 Technical details...............81 13.2 Dimensions..............82 13.3 Gas details..............84 13.3.1 Energy labeling..............85 13.4 Electrical wiring diagram............87 13.5 Declaration of conformity...........89 13.6 Warranty.................90 Index..................91...
Page 13: User Part
User part 0312934_DR-CC_UKUK_V1.0, 2018-03-01...
Page 15: Introduction
Introduction The DR-CC water heater stores and heats water for sanitary purposes. Cold water enters the bottom of the tank through the water inlet (1). The heated water leaves the tank at the top through the hot water outlet (2). To operate the water heater, the operator interface (3) and control switch (4) are used.
Page 16 User part...
Page 17: Safety
Safety Hamworthy cannot be held responsible for damages or injuries leading back to: • Failure to follow the instructions provided in this manual. • Carelessness during use or maintenance of the water heater. Every user has to study the user part of this manual and has to follow the instructions in this part of the manual strictly.
Page 18 User part...
Page 19: Interface
Fig. Operator interface 1. LCD display 2. Push buttons Dorchester DR-CC 3.1.1 Control Switch With the control switch you can activate and deactivate the controller of the water heater. Warning The power of the water heater stays on when the control switch is set to 0.
Page 20: Buttons
3.1.2 Buttons The 5 buttons on the operator panel give access to the menu of the water heater. Button Function Scroll up / Raise Scroll down / Lower [ENTER] Enter / Confirm [RESET] Reset / Cancel [MENU] Go to menu 3.1.3 LCD display The LCD display shows 7 different symbols around the outer edge of the display and 3...
Page 21: Status Of The Water Heater
The user menu parameters are: Parameter Description Unit/Value Adjustable Range Default Turn the water heater on or off. OFF - water heater off (OFF mode) ON - water heater on (ON mode) Setpoint ON mode ºC 40…max setpoint Hysteresis ºC 2…15 Turn setpoint EXT mode (005) ENA - Enable...
Page 22: Error Conditions
Fig. Actual water Fig. Setpoint Fig. Standby temperature 3.2.1.3 External ON mode In the external ON mode, the water heater will respond to a heat demand when the relay switch is closed. Use parameter 004 to switch on the setpoint (parameter 005) of the external ON mode.
Page 23: Anode Warning
3.2.4 Anode warning An anode protects the tank against corrosion. When the anode protection is not active, the display shows Ano. Contact your service and maintenance engineer. Fig. Anode warning display Note If you ignore the anode warning, the tank protection cannot be guaranteed. The warranty will be void.
Page 24 User part...
Page 25: Use
Set a parameter value To set a parameter value: Press [MENU] to access the user menu. Press [ ] or [ ] to scroll to the concerning parameter, refer to Parameters (see section 3.1.3). Press [ENTER] to select. Use [ ] or [ ] to change the parameter value. Press [ENTER] to confirm.
Page 26: Turn Off The Water Heater
Turn off the water heater 4.3.1 Turn off for a short period To turn off the water heater for less than 2 months, change parameter 001 to OFF, refer to Set a parameter value (see section 4.1). The water heater will switch to OFF mode (see section 3.2.1.1)and the frost protection is Caution The anode protection remains active when the OFF mode is selected.
Page 27: Installation, Maintenance And Service Part
Installation, Maintenance and Service part 0312934_DR-CC_UKUK_V1.0, 2018-03-01...
Page 28 User part...
Page 29: Introduction
Introduction About the water heater The DR-CC water heater is intended for heating water for sanitary purposes. The DR-CC is a condensing gas–fired storage water heater with a fan in the air intake. The flue gasses transfer their heat to the water through an efficient heat exchanger. The water heater has a concentric venting connector and can function as an open or as a room- sealed water heater.
Page 30 When the temperature is too low, the water heater starts a operating cycle: The controller detects a "heat demand". The icon "Heat demand present" is shown on the display of the water heater. The fan starts pre-purging. The air proving switch closes when the air pressure differential is sufficient. The hot surface igniter starts pre-ignition.
Page 31: Safety
Safety Safety instructions For safety instructions about the use of the water heater, refer to Safety (see section 2) in the User part of this manual. Warning Installation, maintenance and service must be carried out by a qualified engineer in compliance with the general and local regulations imposed by the gas, water and power supply companies and the fire brigade.
Page 32: Instructions On The Water Heater
Caution The anode protection remains active when the water heater is in OFF mode and the control switch is set to 0. Note Any leakage from the tank and/or connections can cause damage to the immediate environment or floors below the level of the boiler room. Install the water heater above a waste water drain or in a suitable metal leak tray.
Page 33: Safety Devices
Safety devices Fig. Safety devices 1. Temperature sensor 2. Gas control valve 3. Air proving switch 4. Flame probe Safety devices of the water heater: Temperature The water heater controls the water temperature sensor (1) using a temperature sensor: • T <...
Page 34: Environmental Aspects
Environmental aspects 6.4.1 Recycling The packaging material is environmentally friendly, recyclable and relatively easy to discard. 6.4.2 Disposal Old end-of-life appliances contain materials that need to be recycled. When you discard devices at the end of their service life, you must obey local legislation related to waste disposal.
Page 35: Water Heater
Water heater Structure of the water heater The water heater has the following main components: Controller (8) The controller monitors and manages all internal processes of the water heater for a safe operation. Operator interface (1) To control the water heater and to verify the status, the operator interface has 5 buttons and a 3-character display.
Page 36 Installation, Maintenance and Service part...
Page 37: Installation
Installation Warning The installation must be done by a qualified person, in compliance with general and local applicable regulations. Caution The water heater may not be used in rooms where chemical substances are stored or used because of the risk of explosion and corrosion of the water heater. Some propellants, bleaching agents and degreasing agents etc.
Page 38: Water Composition
8.2.3 Water composition The water must comply with the regulations for drinking water for human consumption. Water composition Hardness > 1.00 mmol/l: (alkaline earth ions) • German hardness > 5.6° dH • French hardness > 10.0° fH • English hardness > 7.0° eH •...
Page 39 The water heater can move up maximal 20 mm. Note Make sure that the working clearance at the top of the water heater does not become smaller than 100 cm. Fig. Adjustable leg water heater 0312934_DR-CC_UKUK_V1.0, 2018-03-01...
Page 40: Installation Diagram
Installation diagram Note This manual only discusses unvented installations. Fig. Installation diagram 1. Pressure relief valve (mandatory if the mains water pressure is too high) 3. T&P valve 4. Stop valve (recommended) 5. Non-return valve 6. Circulation pump (optional) 9. Drain valve 10.
Page 41: Hot Water Connection
Install an approved pressure reducing valve (1) to prevent that the pressure in the cold water supply pipe exceeds the maximum working pressure of the tank, 8 bar. Refer to the Technical details. Install a non-return valve (5). Install an expansion valve (15). Connect the overflow connection of the expansion valve, to an open waste water pipe.
Page 42: Venting System
Caution Make sure that the gas supply pipe is clean. Contamination in the pipe can cause damage to the gas control valve, during operation. Caution Install the manual gas valve on a spot accessible for the user. Install the gas connection: Install a manual gas valve (10) in the gas supply pipe.
Page 43 Fig. Venting systems 0312934_DR-CC_UKUK_V1.0, 2018-03-01...
Page 44: C13/C33 Concentric Systems
8.7.1 C13/C33 concentric systems Use a wall terminal set or a roof terminal set to install a C13 or a C33 concentric venting system. Description Concentric Venting material Venting material Manufacture venting material Muelink & Grol Construction Concentric Material flue gas outlet PP - Temp.
Page 45 Fig. Example concentric venting system Caution During installation, obey the instructions delivered with the sets of air supply components and the flue gas discharge components. Make sure that the venting system does not exceed the maximum number of 45º and 90º bends and the maximum pipe length. Caution Use a run-off of 50 mm per meter towards the water heater.
Page 46: C13/C33 Parallel Systems
8.7.2 C13/C33 parallel systems Use a wall terminal set or a roof terminal set to install a C13 or a C33 parallel venting system. Description Parallel Venting material Venting material Manufacture venting material Muelink & Grol Construction Parallel Material flue gas outlet PP - Temp.
Page 47 Fig. Example parallel venting system Refer to the table for the correct pipe dimensions of the C13 or a C33 parallel venting systems. Description Unit Diameter flue discharge/ mm/mm 80/80 80/80 air inlet Maximum length air inlet Maximum length flue gas outlet 45°-bend equivalent...
Page 48: C43/C53/C63 Systems
Calculate the maximum length of the air inlet and the flue gas outlet seperately: Sum the lengths of the different pipe sections without bends. Ignore the length of the adaptor box. Sum the lengths of the bends. Ignore the bend in the adapter box: Sum L for each 45°...
Page 49: Electrical Connections
Description Venting material Venting material Manufacture venting material Muelink & Grol Muelink & Grol Construction Parallel Parallel Material flue gas outlet PP - Temp. Class T120 Thick walled aluminum Material air inlet Diameter flue gas outlet +0,6 +0,3 -0,6 -0,7 Diameter air inlet Refer to C13/C33 parallel systems (see section 8.7.2) for the Hamworthy part numbers.
Page 50: Mains Power
The mains power and optional electrical connections have to be connected to the terminal block of the controller, refer to Structure of the water heater (see section 7.1). Fig. Terminal block 1. Tulles 2. Pull relieves 3. Connections 8.8.2 Mains power Note The water heater is supplied without a power cable and isolator.
Page 51: Finalization
8.8.3.3 Additional error signal Note The water heater has a relay contact that can be used when an error occurs. The relay contact is potential–free (maximal 5 A). Install an additional error signal: Pull the power cable through the tulles. Connect the cables to X1 and X2.
Page 52: Filling
Check the air pressure differential (see section 8.9.2) Check the gas supply pressure (see section 8.9.3) Check the CO value (see section 8.9.4) Turn on the water heater (see section 8.9.5) 8.9.1 Filling Refer to the installation diagram (see section 8.3) when you fill the water heater: Open the stop valve (11) in the hot water supply pipe.
Page 53: Gas Supply Pressure
Fig. Air pressure differential 8.9.3 Gas supply pressure Check the gas supply pressure: Loosen the sealing screw (4) of the test nipple by a few turns. Note Do not completely loosen the sealing screw, it can be difficult to retighten it. Open the gas supply to vent the gas pipes through the test nipple.
Page 54: Value
Fig. Gas supply pressure 1. Adjuster screw 2. Gas control valve 3. Gas supply pipe 4. Sealing screw 8.9.4 value Check the CO value: Open the gas supply. Remove the cap (1) from the test nipple (2) of the flue gas outlet pipe. Place the measurement probe of the CO meter in the test nipple of the flue gas outlet pipe.
Page 55: Turn On The Water Heater
Set the control switch on the side of the water heater to 0 to turn off the water heater. Remove the measurement probe of the CO meter from the test nipple and place the cap (1) back on the nipple (2). Shut off the gas supply.
Page 56 Installation, Maintenance and Service part...
Page 57: Conversion Of Gas Type
Conversion of gas type Caution Conversion of the water heater may only be carried out by a qualified person. Use a special conversion kit to converse the water heater when: • The water heater has to operate on a different family of gases (liquid petroleum gas or natural gas).
Page 58 Installation, Maintenance and Service part...
Page 59: Settings
Settings 10.1 Operator interface The operator interface is parameter driven and enables the user to change parameters and to verify the status and history of the water heater. When you press [MENU] once, parameters 001 to 120 can be accessed. All other parameters can be accessed when you press [MENU] for 10 seconds.
Page 60 Parameter Description Unit/Value Adjustable Range Default Status burner Initialization 0 - Initialization Reset 1 - Reset Stand-by 2 - Stand-by Pre-purge (1) 3 - Pre-purge (part 1) Pre-Purge (2) 4 - Pre-Purge Pre-Ignition (part 2) Ignition 5 - Pre Ignition Flame check 6 - Ignition Burn...
Page 61: Hysteresis
Parameter Description Unit/Value Adjustable Range Default Interval between last lock-out Minutes 00n...59n = 0 till 59 minutes and read-out. Hours 01h...23h = 1 till 23 hours Days 01d...06d = 1 till 6 days Weeks 01...63 = 1 till 63 weeks Last blocking error C02…S14 --- - no error...
Page 62: Test Cycle
10.5 Test cycle The test cycle can be used to activate the test modes. These test modes can, for example, be used to set the CO2 value at full and at partial load or to check the air pressure differential. Use parameter 201 to activate the test cycle.
Page 63: Maintenance
Maintenance The water heater needs maintenance at least once a year. The maintenance interval is determined by the water quality, the average burning time each day and the set water temperature. On the operator interface, the maintenance interval can be set as a reminder. The display shows Src when the pre-set interval has elapsed.
Page 64: Preparation
Make sure the air pressure differential is correct, refer to Air pressure differential (see section 8.9.2). Make sure the gas supply pressure is correct, refer to Gas supply pressure (see section 8.9.3). Make sure the CO value is correct, refer to CO value (see section 8.9.4).
Page 65: Gas-Side Maintenance
Empty the condense trap and clean it with water. Make sure that there is no grit or other blockages in the condense trap. Make sure that there is no grit or other blockages in the condensate drain. Make sure that there is no grit or other blockages in the drain pipe (3). Make sure that the slope of the drain pipe is correct;...
Page 66 Fig. Remove the burner engine 1. Plugs on burner engine 2. Gas supply pipe 3. Bolts 4. Burner engine Remove the burner: Loosen the four nuts (5) to disconnect the burner assembly (6) from the combustion chamber (7). Take the burner assembly out of the combustion chamber. Caution Be carefull, the burner can be hot Caution...
Page 67: Clean The Combustion Chamber
Make sure that there is no tear on the non-return valve (8) and that this valve is not deformed. Loosen the four bolts (9) to disconnect the adapter from the burner flange (15). Take out the burner (14) from the burner flange. Fig.
Page 68: Assemble The Burner
11.4.3 Assemble the burner Assemble the burner again when the burner and the combustion chamber both are cleaned. Note Before reassembly replace the gasket, bolts and washers. You can order a special gasket and mounting set at your supplier. Look at the data plate for the correct ordering information.
Page 69 Make sure the gas supply pressure is correct, refer to Gas supply pressure (see section 8.9.3). Make sure the CO2 value is correct, refer to CO value (see section 8.9.4). Turn on the water heater (see section 4.2). Set parameter 211 to rst, refer to Settings (see section 10). Press [RESET].
Page 70 Installation, Maintenance and Service part...
Page 71: Troubleshooting
Troubleshooting 12.1 Errors and warnings The water heater can have three different kinds of errors and warnings: • General errors (see section 12.1.1), which are not displayed • Displayed errors (see section 12.1.2), which are divided in two different groups: Lock out errors: when the cause is removed, you can reset the error to resume operation.
Page 72 Indication Cause Measure Water leakage There is a leakage from a threaded Tighten the threaded connection. water connection. There is a condensate leakage Make sure that the condensation water discharge is working properly. If necessary, correct the water discharge. There is a leakage from another nearby Trace the leakage.
Page 73: Displayed Errors
Indication Cause Measure value (at full load) The unit is not set for the correct gas • Make sure that the gas type corresponds type with the information on the rating plate is not correct • Make sure if the venturi restrictor has the correct diameter, refer to Gas details.
Page 74 Code and description Cause Measure The temperature in the tank is above • Tap off water, so the temperature drops E01 (blocking error) Temperature error 90ºC. in the water heater. • Reset the controller. • Make sure that there is no scale on the temperature sensor.
Page 75 Code and description Cause Measure Damaged wiring/closed circuit. • Make sure that the wiring, between the F03 (lock out error) Air proving switch error air proving switch and the control, is connected and not damaged. Switch is closed when fan •...
Page 76 Code and description Cause Measure Hoses are damaged. • Make sure that the hoses, between the F03 (lock out error) Air proving switch error air proving switch and fan and the air proving switch and gas control valve are Switch is not closed when not damaged and reset the controller.
Page 77 Code and description Cause Measure No gas. • Make sure that the main gas supply valve F04 (lock out error) Ignition error is open. If necessary, open the valve. • Make sure that the manual gas supply Three unsuccessful valve, before the gas control valve, is ignition attempts.
Page 78 Code and description Cause Measure Recirculating flue gases due too • Make sure the flue terminal is installed F05 (lock out error) Flame error incorrect roof or wall flue terminal. correctly, refer to Venting system (see section 8.7). If necessary, connect the Too many flame failures correct flue terminal.
Page 79 Code and description Cause Measure There is not enough or too much supply • Make sure that the supply voltage on the F19 (blocking error) Supply voltage error voltage during 60 seconds. controller is correct. The measured voltage between live and •...
Page 80: Warnings
12.1.3 Warnings Note For the coding of the connections, refer to the Electrical wiring diagram (see section 13.4). Indication Cause Remark Src Service is required The water heater exceeded the pre-set The water heater operates, but displays this service interval. warning.
Page 81: Appendices
Appendices 13.1 Technical details Description Unit General Capacity Empty Weight Maximum floor load Maximum operating pressure kPa (bar) 550 (5.5) 550 (5.5) 550 (5.5) 550 (5.5) 550 (5.5) - installation Maximum operating pressure kPa (bar) 800 (8) 800 (8) 800 (8) 800 (8) 800 (8) - tank...
Page 82: Dimensions
Description Unit Supply voltage/Main VAC / Hz 230 (-15%, +10%) / 50 (± 1) frequency IP-class IP20 13.2 Dimensions Size Description Unit Dimensions water heater Height 1270 1545 1545 1745 1745 Width Depth Flue gas outlet/Air inlet mm/mm 80/125 80/125 80/125 80/125 80/125...
Page 83 0312934_DR-CC_UKUK_V1.0, 2018-03-01...
Page 84: Gas Details
13.3 Gas details Description Unit Gas category 2H (G20) Diameter of the venturi 3.95 3.95 3.95 3.95 restrictor Nominal Load (gross) 12.1 20.0 24.4 32.2 Nominal output 11.7 19.1 23.5 30.7 (12-160) (24-245) (32-245) 11.9 23.8 31.0 (12-200) (24-285) (32-285) 31.3 (32-380) Supply pressure...
Page 85: Energy Labeling
Description Unit Flue gas temperature ºC (nominal load) 13.3.1 Energy labeling Description Unit Declared load profile Load profile Energy efficiency class ( Energy label) Energy efficiency Daily electricity consumption 0.175 0.181 0.172 0.182 Daily fuel consumption kWh GCV 20.526 19.924 20.661 20.853 Mixed water 40 °C (V40)
Page 86 Description Unit Additional load profile Load profile Energy efficiency class (Energy label) Energy efficiency Daily electricity consumption 0.256 Daily fuel consumption kWh GCV 50.428 Mixed water 40 °C (V40) Installation, Maintenance and Service part...
Page 87: Electrical Wiring Diagram
13.4 Electrical wiring diagram 0312934_DR-CC_UKUK_V1.0, 2018-03-01...
Page 88 Cable colors: Terminal block connections: C. Hot surface igniter M. Earth connection mounting plate D. Gas control valve 1. Brown A. Earth P. Earth connection E. External ON mode switch 2. Blue N. Neutral burner flange F. Additional error signal (max. 5A) 3.
Page 89: Declaration Of Conformity
Date: 14/02/17 The Product Covered by this Declaration :- Condensing gas fired storage water heater: Dorchester DR-CC 12-160, DR-CC 12-200, DR-CC 20-160, DR-CC 20- 200, DR-CC 24-245, DR-CC 24-285, DR-CC 32-245, DR-CC 32-385, DR-CC 32-380 The Basis on which Conformity is being Declared :-...
Page 90: Warranty
13.6 Warranty Please contact your supplier for the guarantee conditions. Installation, Maintenance and Service part...
Page 91: Index
Index Declaration of conformity....89 Decommisioning........55 Descale the tank....... 64 Dimensions........82 Displayed errors........ 73 Disposal........... 34 Document identification....... 8 Draining........... 55 About the water heater...... 29 About this manual....... 7 Additional error signal......51 Electrical connections......49 Air pressure differential...... 52 Electrical wiring diagram....
Page 92 Installation........37 Recycling......... 34 Installation diagram......40 Regulations........4 Installation, Maintenance and Service part..........27 Instructions on the water heater..32 Interface.......... 19 Introduction........ 15, 29 Isolate from the mains....... 26 Safety........17, 31 Isolating transformer......50 Safety devices........33 Safety instructions......31 Scope..........
Page 93 Warnings..........80 Warranty..........3 Warranty..........90 Water composition....... 38 Water connections....... 40 Water heater........35 Water inlet......... 29 Water outlet........29 Water-side maintenance....... 64 Working clearances......38 Working clearances......38 Working principle.........29 0312934_DR-CC_UKUK_V1.0, 2018-03-01...
Page 94 Installation, Maintenance and Service part...

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