Eco Heating Systems CD+80 Guía del usuario

CD+

80 - 100 - 120 - 150 - 180

Wall hung high efficiency water heater

Installation, user and service instructions

BASE VERSION

E93.1001EN.C

E93.1001EN.C Manual CD+

TABLE OF CONTENTS

INTRODUCTION ……………………….………………………............................................................................6

SAFETY GUIDELINES ..................................................................................................................................... 6

1.1 GENERAL.............................................................................................................................................. 6

1.2 IMPORTANT TECHNICAL WARNINGS AND GUIDELINES................................................................................ 7

1.3 SAFETY VALVE....................................................................................................................................... 9

TECHNICAL DATA CD+WATER HEATERS................................................................................................. 10

2.1 FUNCTIONAL INTRODUCTION ................................................................................................................ 10

2.2 TECHNICAL SPECIFICATIONS DATASHEET .............................................................................................. 11

2.3 TABLE TECHNICAL SPECIFICATIONS ERP .............................................................................................. 12

DIMENSIONS.................................................................................................................................................. 13

3.1 WATER HEATERS CD+80 –CD+120..................................................................................................... 13

3.2 WATER HEATERS CD+150 AND CD+180............................................................................................... 14

3.3 CD+TANKS EWD300 -EWD450 -EWD750 ....................................................................................... 15

3.4 ERP SPECIFICATIONS ECOHS TANKS.................................................................................................... 16

3.5 CASCADE FRAMES CD+80 –CD+180 ................................................................................................... 17

ACCESSORIES AND UNPACKING............................................................................................................... 19

4.1 ACCESSORIES..................................................................................................................................... 19

4.2 FLUE GAS AND AIR SUPPLY PARTS -TWIN PIPE:.................................................................................. 19

4.3 FLUEGAS AND AIR SUPPLY PARTS -CONCENTRIC:............................................................................. 20

4.4 UNPACKING......................................................................................................................................... 20

INSTALLATION OF THE CD+........................................................................................................................ 21

5.1 GENERAL NOTES ................................................................................................................................. 21

5.2 MOUNTING THE WATER HEATER AND TANK ............................................................................................ 22

Water heater mounting.................................................................................................................. 22

Tank positioning............................................................................................................................. 22

FLUE GAS AND AIR SUPPLY SYSTEM....................................................................................................... 23

6.1 GENERAL............................................................................................................................................ 23

6.2 HEIGHTS ON ROOF............................................................................................................................... 23

6.3 WATER HEATER CATEGORIES -TYPES OF FLUEGAS SYSTEMS................................................................. 24

6.4 C63 CERTIFIED.................................................................................................................................... 25

6.5 AIR SUPPLY......................................................................................................................................... 26

Combustion air quality................................................................................................................... 26

Air supply through humid areas..................................................................................................... 26

Flue gas and air supply resistance table....................................................................................... 27

6.6 SIX TYPICAL EXAMPLES........................................................................................................................ 28

Example A: Twin pipe system (C63) ............................................................................................. 28

Example B: Twin pipe system with concentric roof terminal (C33) ............................................... 28

Example C: Single flue gas outlet. Air supply from water heater room (B23, B23P) .................... 30

Example D: Concentric C33 (roof-mounted) ................................................................................. 31

Example E: Concentric system Wall outlet C13(wall-mounted).................................................... 31

Example F: Separate air & flue pipes in different pressure zone (C53)........................................ 33

ELECTRICAL INSTALLATION ...................................................................................................................... 34

7.1 GENERAL............................................................................................................................................ 34

7.2 ELECTRICAL CONNECTIONS.................................................................................................................. 34

7.3 FUNCTION OF THE ELECTRICAL CONNECTIONS OF THE WATER HEATER ................................................... 34

7.4 SENSOR VALUES.................................................................................................................................. 35

7.5 ELECTRICAL SCHEMATICS .................................................................................................................... 36

DE CD+WATER HEATER .............................................................................................................................. 38

8.1 WATER QUALITY .................................................................................................................................. 38

8.2 FROST PROTECTION ............................................................................................................................ 38

8.3 LEGIONELLA PROGRAM ........................................................................................................................ 38

8.5 FLOW MONITORING.............................................................................................................................. 39

8.6 WATER PRESSURE SWITCH .................................................................................................................. 39

E93.1001EN.C Manual CD+

THE CD+SANITAIRY SYSTEM: INSTALLATION INSTRUCTIONS............................................................. 40

9.1 THE CD+SYSTEM................................................................................................................................ 40

Stand-alone set-up ........................................................................................................................ 40

Cascade set-up.............................................................................................................................. 41

9.2 CONTROL............................................................................................................................................ 42

Tank sensor................................................................................................................................... 42

General control.............................................................................................................................. 42

Cascade control............................................................................................................................. 42

9.3 WATER HEATER AND TANK:CONNECTIONS AND CONNECTION SIZES........................................................ 43

Connecting the tank to the water heater ....................................................................................... 43

To connect the tank to your DHW installation ............................................................................... 43

Condensate drain connection........................................................................................................ 44

9.4 CASCADE SYSTEMS:PIPE CODES.......................................................................................................... 45

Introductory notes to the use of the tables .................................................................................... 45

Pipe codes..................................................................................................................................... 45

Equivalent length........................................................................................................................... 46

9.5 DIAMETERS –TABLES .......................................................................................................................... 47

Water manifolds............................................................................................................................. 47

Tank headers................................................................................................................................. 47

9.6 EQUIVALENT LENGTHS –TABLE ............................................................................................................ 49

9.7 PUMP SELECTION –TABLES.................................................................................................................. 50

Pump selection.............................................................................................................................. 50

Nominal flow per water heater type............................................................................................... 51

Pump control.................................................................................................................................. 51

Pump: maximum electrical power.................................................................................................. 51

9.8 ELABORATED EXAMPLES...................................................................................................................... 52

One CD+120 water heater with one EWD450 tank ....................................................................... 52

Two CD+100 water heaters with two EWD450 tanks.................................................................... 53

Three CD+180 water heaters with five EWD750 tanks.................................................................. 54

USER INTERFACE......................................................................................................................................... 56

10.1 CONTROL PANEL MENU STRUCTURE ..................................................................................................... 56

10.2 CONTROL PANEL DISPLAY AND KEYS..................................................................................................... 58

10.3 DISPLAY DURING OPERATION................................................................................................................ 59

10.4 MONITOR SCREENS ............................................................................................................................. 60

10.5 SERVICE FUNCTION ............................................................................................................................. 62

10.6 SCHORNSTEINFEGER FUNCTION ........................................................................................................... 63

10.7 PROGRAMMING IN STANDBY MODE........................................................................................................ 64

10.8 SETTING THE TIME &DATE ................................................................................................................... 64

10.9 SET POINTS......................................................................................................................................... 65

10.10 SETTING THE TIMER PROGRAMS ........................................................................................................... 65

10.11 HOT WATER PROGRAM ................................................................................................................. 66

10.12 ANTI LEGIONNAIRES’ DISEASE PROGRAM ................................................................................. 67

10.13 CHECKING THE OPERATING HISTORY .................................................................................................... 68

10.14 CHECKING THE FAULT HISTORY ............................................................................................................ 69

10.15 SETTING THE MAINTENANCE SPECIFICATIONS........................................................................................ 70

10.16 SETTING THE USER LOCK ..................................................................................................................... 73

10.17 SETTING THE PARAMETERS AT THE CONTROL PANEL.............................................................................. 74

10.18 FAULT CODES DISPLAY......................................................................................................................... 81

Lock-out codes ........................................................................................................................... 81

Blocking codes............................................................................................................................ 82

Maintenance attention messages............................................................................................... 83

CONTROLLING OPTIONS AND SETTINGS................................................................................................. 84

11.1 GENERAL............................................................................................................................................ 84

Max cooling time......................................................................................................................... 84

temperature display on/off.......................................................................................................... 84

Gas type selection...................................................................................................................... 84

Soft start option........................................................................................................................... 85

Pump mode (EC technology) ..................................................................................................... 85

Tank sensor sensitivity ............................................................................................................... 85

E93.1001EN.C Manual CD+

11.2 WATER HEATER OPTIONS..................................................................................................................... 86

0-10 VDC remote flow temperature set point............................................................................. 86

anti-Legionnaires’ disease (pasteurisation) function.................................................................. 87

11.3 CASCADE CONTROL............................................................................................................................. 88

Parameter settings for cascade set-ups..................................................................................... 88

Monitor screens.......................................................................................................................... 90

Output control and water heater sequence ................................................................................ 90

COMMISSIONING THE WATER HEATER .................................................................................................... 91

12.1 FIRST:FLUSHING THE WATER HEATER WITH WATER ............................................................................... 91

12.2 SECOND:FILLING &VENTING THE WATER HEATER AND THE SYSTEM ....................................................... 91

12.3 THIRD:CHECK THE WATER FLOW .......................................................................................................... 91

STARTING THE WATER HEATER................................................................................................................ 93

13.1 GENERAL............................................................................................................................................ 93

13.2 FIRING FOR THE FIRST TIME.................................................................................................................. 93

ADJUSTING AND SETTING THE BURNER.................................................................................................. 94

14.1 INTRODUCTION.................................................................................................................................... 94

Adjustment tables....................................................................................................................... 94

Adjustment values ...................................................................................................................... 95

Setting screws gas valve(s): drawings ....................................................................................... 99

Adjustment actions: general scheme........................................................................................ 100

14.2 ADJUSTING IN CASE OF A NEW WATER HEATER,OR AFTER MAINTENANCE (CASE A)................................ 101

General remark......................................................................................................................... 101

Checking and adjusting at maximum load................................................................................ 101

Checking and adjusting at minimum load................................................................................. 101

14.3 ADJUSTING IN CASE OF VALVE REPLACEMENT OR GAS CONVERSION (CASE B)....................................... 101

General remarks....................................................................................................................... 101

Checking and adjusting at minimum load CD+80 / CD+100.................................................... 101

Checking and adjusting at maximum load CD+120 / CD+150 / CD+180 ................................ 102

Checking and adjusting at minimum load CD+120 / CD+150 / CD+180 ................................. 102

14.4 ADJUSTING PROCEDURES .................................................................................................................. 103

PUTTING THE WATER HEATER OUT OF OPERATION ........................................................................... 104

15.1 OUT OF OPERATION:ON/OFF FUNCTION .............................................................................................. 104

15.2 OUT OF OPERATION:POWER OFF........................................................................................................ 104

FAULT CODES, BLOCKING CODES.......................................................................................................... 105

16.1 LOCK-OUT CODES.............................................................................................................................. 105

16.2 BLOCKING CODES.............................................................................................................................. 111

16.3 MAINTENANCE ATTENTION FUNCTION.................................................................................................. 114

MAINTENANCE............................................................................................................................................ 114

17.1 GENERAL.......................................................................................................................................... 114

17.2 INSPECTION &MAINTENANCE ............................................................................................................. 115

USER INSTRUCTIONS................................................................................................................................. 117

INDEX............................................................................................................................................................ 118

E93.1001EN.C Manual CD+

INTRODUCTION

This manual is written for:

the installer

system design engineer

the service engineer

the user

abbreviations

EHS

Eco Heating Systems Groningen B.V.

NOTICE

symbols

Warning: important information related to the safety

of persons and/or the appliance

terminology

Flow

Return

Water heater hot water out

Water heater cold water in

SAFETY GUIDELINES

1.1 General

Read all these instructions before commencing installation.

Keep this user manual near the water heater for quick reference.

The appliance should be installed by a skilled installer according to all applicable standards and regulations.

Failure to comply with these regulations could deem the warranty invalid.

Without written approval of the manufacturer the internals of the water heater may not be changed. When these

changes are executed without approval, the water heater certification is invalid.

Commissioning, maintenance and repair must be done by a skilled installer/engineer, according to all applicable

standards and regulations.

What to do if you smell gas:

Don't use any electrical equipment.

Don't press any switches.

Close the gas supply.

Ventilate the room (open the windows and/or outdoor water heater room doors).

Immediately warn the installer.

The manufacturer/supplier is not liable for any damage caused by inaccurately following of these

mounting instructions. Only original parts may be used when carrying out any repair or service works.

This appliance is not intended for use by persons (including children) with reduced physical, sensory

or mental capabilities, or lack of experience and knowledge, unless they have been given supervision

or instruction concerning use of the appliance by a person responsible for their safety. Children should

be supervised to ensure that they do not play with the appliance.

E93.1001EN.C Manual CD+

1.2 Important technical warnings and guidelines

For FAULT CODES in this manual see Ch. 16 on page 105

The EHS Domestic Hot Water systems will, for a long period, comfortably meet your requirement of hot water of

the right temperature at the right hour, provided that a few important conditions have been fulfilled regarding the

installation.

Please follow all instructions and recommendations presented in this manual by EHS, especially the ones con-

cerning the next important topics:

- Water quality (also see § 8.1 on page 38)

A first necessary condition is the quality of the water to be heated in the DHW water heater. Three values

matter: hardness, total amount of dissolved solids and acidity. If water quality does NOT meet the requirements

the system may be seriously damaged in time!

♦Hardness should not exceed 205 PPM CaCO3(11,5°dH)

♦TDS (Total Dissolved Solids) should not exceed 450 PPM

♦Hardness and TDS together may not exceed 450 PPM

♦pH value should be between 6,5 and 7,5, measured cold

The actual values can be retrieved at your local water supplier.

If water quality doesn’t meet the abovementioned requirements, a water treatment installation should be in-

stalled to improve water quality to the required levels, if possible.

- Water flow velocity and pump selection (see § 9.7 on page 50)

For a given combination of water heaters and tanks, pump selection is very important with respect to the

required flow velocity.

EHS has done the calculations and provides a number of tables in which you can find the right pump type

suitable for your particular installation.

- Water flow velocity and piping diameters and lengths (see § 9.5 from page 47 on)

The arguments that hold for pump selection, hold for piping design as well: all piping components added up

are giving a certain total resistance which should not exceed a critical value at which the pump cannot realize

the required flow velocity anymore.

EHS has done the calculations and provides a number of tables in which you can find the piping requirements

suitable for your particular installation.

Following the instructions and recommendations given in the referred paragraphs will highly improve the function-

ing and considerably lengthen the life time of your EHS DHW system.

Furthermore, for all EHS appliances the next instructions and recommendations apply:

!Never use aluminium or aluminium containing flue gas outlet

!Always fill the siphon before commissioning the water heater

!Always set the gas valves during commissioning the water heater, for the first time and after maintenance

and/or installation changes

!Never change the parameters P2LC, P2LD, P2ML and P5BI

!Never place a ball valve between the safety valve and the water heater

!In a log, keep track of all situations regarding the appliance:

what, when, by whom, what actions and/or changes, what communication has been performed

E93.1001EN.C Manual CD+

Warnings and guidelines (continuation)

EHS is not liable for any damage caused by inaccurately following these mounting instructions.

Only EHS parts may be used when carrying out any repair or service works.

Do not use chlorine based products for brazing.

When commissioning the water heater, the running of the water heater pump must be checked before leav-

ing the installation.

By pressing the service button during a couple of seconds the water heater can be fired independently from

the thermostat circuit. Firing the water heater without water flow (but filled with water) will cause a boiling

noise.

The flow and return temperature are checked continuously. The temperature difference may not exceed the

programmed value belonging to the actual power mode. If it does, the water heater will go in a lock-out.

The applied DHW pump must be controlled only by the CD+water heater control. If, for any

reason, an external pump control is applied without written approval of EHS, the complete war-

ranty on the CD

water heater and all supplied parts will become invalid.

Minimum water pressure 1 bar.

Fuel used should have sulphur rates that comply with the next values: a maximum annual peak over a short

period of time of 150 mg/m3and an annual average of 30 mg/m3 maximum.

Combustion air must be free of contents of chlorine, ammonia, alkali agents. The air near a swimming pool,

a washing machine or a laundry is containing these a.m. contents.

The water heater is used in combination with a hot water tank without any other heat exchanger; the water

heater should be equipped with a safety relief valve. In some cases also the tank should be equipped with

a T&P relief valve. Always apply all applicable installation standards and regulations.

The connection for a remote DHW Stat is based on an OpenTherm bus system or an on/off timer.

For correct connections of the thermostat see page 34.

At first installation, the built-in automatic air vent should be open.

LEGIONNAIRES’ DISEASE

An anti-Legionella function is present in the software but is default turned OFF.

See § 8.3 on page 38 and for the programming options § 11.2.2 on page 87.

BUTANE GAS

If a butane/propane gas mixture has to be used for this water heater the fan speed must be re-

duced by altering parameter P4BD.

See § 11.1.3 on page 84.

E93.1001EN.C Manual CD+

1.3 Safety valve

Between the water heater and the safety valve, DO NOT apply a closing valve or any other form of narrowing,

because this might disturb the correct functioning of the safety valve.

The right safety valve has been supplied with the CD+water heater.

Water heater Safety valves Part number

80-150

27112 Prescor B ¾ - 10 bar - 150 kW

E04.015.090

CD+180 29007 Prescor B 1 - 10 bar - 250 kW E04.015.091

The CD+water heater and tank should be installed by a skilled installer according to all applicable standards and

regulations for tap water installations. Use the next scheme as guideline. When multiple water heaters and tanks

are applied, every combination has to be equipped with its own safety valve.

A) Service pipe inlet

B) Hot water supply circulation

C) Circulation return

1) Pressure relief valve (manda-

tory in case service water pres-

sure is too high)

Inlet combination with valve

(mandatory)

3) Apply filter if necessary (recom-

mended)

4) A suitable safety valve must be

mounted near the water heater

(mandatory)

This safety valve may never be

isolated from the water heater

by means of a ball valve

5) Remote tank sensor (neces-

sary) →mounting hereof: see §

9.2.1 on page 42

6) Drain valve (recommended)

7) Hot and cold water mixers

SAFETY COMPONENTS

NB! The picture shows an example of a functional installation. The safety components as shown in

the picture are NOT necessarily conform all applicable standards and regulations.

ALWAYS have the system installed by a skilled installer. Safety must be added according to all

applicable standards and regulations.

PUMP

NON RETURN VALVE

VALVE

SAFETY VALVE

AUTOMATIC VENT

FILTER

INLET COMBINATION

- Overflow

- Controllable return valve

- Valve

PRESSURE REGULATING

E93.1001EN.C Manual CD+

TECHNICAL DATA CD+WATER HEATERS

2.1 Functional introduction

The CD+water heaters are heaters with a maximum high efficiency. Such a performance can be reached by,

amongst other things, using a special heat exchanger made of stainless steel. This allows the flue gases to cool

down below the condensation point, and so release extra heat. This has an immediate positive impact on the

efficiency, exceeding the 100%.

The CD+water heater is standard set for Natural gas G20 / G25.3

Gases used must meet the European standard EN 437.

Fuel used should have sulphur rates according to the European standard, a maximum annual peak over a short

period of time of 150 mg/m3and an annual average of 30 mg/m3.

Water heater control includes the next programmable features:

Cascade control for up to twelve water heaters

Remote operation and heat demand indication from each water heater

Anti-Legionnaires’ disease function

0-10 VDC remote flow temperature (set point) control

NB! 0-10 VDC remote burner input control is NOT possible for this type of direct fired water heaters.

Cascade control

When using the integrated cascade control, a maximum of twelve heaters can be controlled in a cascade config-

uration. By the use of an appropriate external control, this number may be increased at will.

0-10 VDC connection available

The water temperature can be controlled by an external 0-10 VDC signal. When a number of water heaters are

cascaded, the signal should be directed to the master only.A signal of 1.48 Volt will switch on the water heater(s),

less than 1.4 Volt will switch off the water heater(s).

Time program

Time programs with three programmable periods per day are available. These time programs are activated at the

control panel and offer great flexibility in controlling the water heater’s day and night temperatures as well as the

anti-Legionella settings.

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