Andrews 10/105 Manual

Issue 4 21/04/18

Please read and understand these instructions before commencing installation and leave this manual with the customer for future reference.

Andrews. Built to perform.

Andrews Water Heaters

Reproduction of any information in this publication by any

method is not permitted unless prior written approval has been

obtained from Andrews Water Heaters.

Andrews Storage Water Heaters have been designed and

manufactured to comply with current international standards of

safety. In the interests of the health and safety of personnel and

the continued safe, reliable operation of the equipment, safe

working practices must be employed at all times. The attention

of UK users is drawn to their responsibilities under the Health

and Safety Regulations 1993.

All installation and service on Andrews Water Heaters must be

carried out by properly qualified personnel and, therefore, no

liability can be accepted for any damage or malfunction caused

as a result of intervention by unauthorised personnel.

Andrews Water Heaters’ policy is one of continuous product

improvement and, therefore, the information in this manual,

whilst completely up to date at the time of publication, may be

subject to revision without prior notice.

Further information and assistance can be obtained from:

Customer support

Monday - Friday

8am - 5pm

Sales: 0345 070 1055

Technical: 0345 070 1057

Email: comm[email protected]

Website: www.andrewswaterheaters.co.uk

Twitter: @andrewsWH

Note

The Andrews Water Heaters covered in this manual

are for use with natural gas and LPG only

Contents

1.1 General Information.......................................................................................................................... 5

1.2 British Standards and Codes of Practice .......................................................................................... 5

1.3 Health and Safety Regulations 1993 ................................................................................................ 6

1.4 Effectiveness in Combating Legionella ............................................................................................. 6

2 Technical Data ......................................................................................................................................... 7

2.3 ErP data ......................................................................................................................................... 10

3 Installation ............................................................................................................................................. 11

3.1 Introduction .................................................................................................................................... 11

3.2 Location.......................................................................................................................................... 11

3.3 Assembling the draught diverter ..................................................................................................... 11

3.4 Air Supply....................................................................................................................................... 14

3.5 Important ........................................................................................................................................ 15

3.6 Water Quality and Treatment.......................................................................................................... 16

3.8 Water Connections - General ......................................................................................................... 17

3.8.1 Hydrojet® System ................................................................................................................... 17

3.9 Gas Connections............................................................................................................................ 20

3.10 Electrical Supply............................................................................................................................. 20

3.11 Wiring Diagram............................................................................................................................... 21

4 Commissioning...................................................................................................................................... 22

4.1 Commissioning............................................................................................................................... 22

4.2 Users Safety Guide ........................................................................................................................ 22

5 Operation .............................................................................................................................................. 23

5.1 Burner Assembly ............................................................................................................................ 23

5.2 Burner flame check ........................................................................................................................ 24

5.4 Temperature selection procedure ................................................................................................... 25

6.1 Introduction .................................................................................................................................... 30

6.2 Burner Assembly ............................................................................................................................ 32

6.3 Gas Control Valve .......................................................................................................................... 33

6.4 Magnesium Anode.......................................................................................................................... 34

6.5 Descaling Information..................................................................................................................... 34

6.6 Accessing service mode on the water heater display (Service personnel only)............................... 35

6.7 How to reset the control from Lockout conditions ........................................................................... 44

6.8 Diagnostic error codes and troubleshooting procedures for Honeywell integrated .......................... 47

7 Fault Finding.......................................................................................................................................... 49

7.1 Fault Finding .................................................................................................................................. 49

8 Parts List ............................................................................................................................................... 50

8.1 General Assembly .......................................................................................................................... 50

8.2 Control Box Assembly .................................................................................................................... 53

8.3 General Assembly Parts List........................................................................................................... 54

9 Appendix ............................................................................................................................................... 57

9.1 Dismantling, Disposal and Recycling.............................................................................................. 57

1 General and Safety Information

General and Safety Information 1

1.1 General Information

The Andrews Water Heater has been designed for use with

NATURAL GAS & LPG only and is manufactured to give an

efficient, reliable and long service life.

To ensure the continued, trouble-free operation of your heater at

maximum efficiency, it is essential that correct installation,

commissioning, operation and service procedures are carried

out strictly in accordance with the instructions given in this

manual. By law, installation and commissioning of the heater

must be carried out by properly qualified personnel.

The heater(s) must be installed in accordance with the following

requirements;

The current GAS SAFETY (INSTALLATION AND USE)

REGULATIONS

The current BUILDING REGULATIONS

The Water Supply (WATER FITTINGS) REGULATIONS 1999

Additionally, installation should be performed in accordance with

all relevant requirements of the Gas Supplier, Local Authority

and recommendations of the British Standards and Codes of

Practice detailed below.

1.2 British Standards and Codes of Practice

1.2.1 CLASSICflo

BS 6700: Specification for design, installation, testing

and maintenance of services supplying water

for domestic use within buildings and their

curtilages. This standard supersedes the

following British Standards and Codes of

Practice: CP99, CP310, CP324, 202, CP342

Part 2, Centralised Hot Water Supply.

BS 5440: Installation of flues and ventilation for gas

appliances of rated output not exceeding

60kW.

Part 1: Specification for installation of flues.

Part 2: Specification for installation of ventilation for

gas appliances.

BS 5546: Installation of gas hot water supplies for

domestic purposes.

BS 6891: Installation of low pressure gas pipework of up

to 28mm in domestic premises.

BS 7206: Specification for unvented hot water storage

units and packages.

BS EN 806 (Parts 1 - 5) Specifications for installations

inside buildings conveying water for human

consumption.

BS 6644 Installation of gas fired water boilers of rated

inputs between 70kW and 1.8MW.

BS EN 12897 Water supply. Specification for indirectly

heated unvented (closed) storage water

heaters.

IGE/UP/1A,1B Strength/tightness testing and direct purging.

IGE/UP/2 Installation pipework.

IGE/UP/10 - 1 (Edition 4): Installation of gas appliances in

industrial and commercial premises.

Note

Consideration should be given to amendments or

updates to the above standards.

1 General and Safety Information

1.3 Health and Safety Regulations 1993

It is the duty of manufacturers and suppliers of products for use

at work to ensure, so far as is practicable, that such products

are safe and without risk to health when properly used and to

make available to users, adequate information about their safe

and proper operation.

Andrews Water Heaters should only be used in the manner and

purpose for which they were intended and in accordance with

the instructions in this manual. Although the heaters have been

manufactured with paramount consideration to safety, certain

basic precautions specified in this manual must be taken by the

user.

It is imperative that all users of the heater must be provided with

all the information and instruction necessary to ensure correct

and safe operation.

1.4 Effectiveness in Combating Legionella

Water systems in buildings have been associated with outbreaks

of Legionnaires' Disease, particularly in health care facilities

where occupants are significantly more susceptible to infection.

In recognition of the risks in hospitals, a Code of Practice for the

Control of Legionella in Health Care premises has been issued

by the Department of Health (1991). Codes of Practice

applicable to other premises have been published by other

organisations, principally the Health and Safety Executive

(HS)(G70) and the Chartered Institute of Building Services

Engineers (CIBSE, TM13).

All Codes of Practice draw attention to the design and operation

of water systems with reference to avoidance of factors that

favour colonisation by Legionella bacteria. These factors

include stagnation, lukewarm conditions (20°C to 45°C) and the

accumulation of debris, scale and corrosion in the base of tanks

and calorifiers.

Andrews Water Heaters has commissioned an independent

evaluation of their products to investigate their resistance to

build-up of legionella bacteria.

Experiments were conducted to determine whether, following a

substantial challenge by legionella pneumophilia, after overnight

and stagnation conditions, the system was rendered free from

viable recoverable Legionella. It was found that at 61°C,

following a challenge of approximately 107 organisms per litre,

within one hour, more than 99.999% of organisms had been

killed. After a subsequent stagnation period, sampling did not

reveal any residual contamination. The design of the base of the

water heater precludes Legionella colonisation, even after build-

up of debris. The burner positioning ensures that the water at

the bottom of the heater reaches the same, or higher

temperature as in the rest of the heater.

Based on data obtained through experiment, the Andrews Water

Heater can be described as Legionella resistant as it is

considered unlikely that, at the temperature tested, the organism

would colonise the water heater and present a possible health

risk.

2 Technical Data

Technical Data 2

2.1 Appliance Dimensions

Fig. 1

CLASSICflo 10/105, 10/145, 14/175

CLASSICflo 15/270 & 20/360

Recommended service clearance

Model 10/105 10/145 14/175 15/270 20/360

Amm 406.5 406.5 406.5 456.9 509.3

Bmm 200 200 200 262 260.4

Cmm 981 1041 1267 1319 1492

Dmm 1140 1222 1439 1515 1646

Emm 508 559 559 660 718

Fmm 1220 1303 1540 1595 1776

Gmm 762 762 762 1143 1270

Hmm 102 102 102 125 125

Imm 203 203 279 279 406

Jmm 305 305 305 305 305

Kmm 610 610 610 610 610

Lmm --- --- 340 424 435

2 Technical Data

2.2 CLASSICflo connections & technical data

Natural Gas

Andrews Models Unit CLASSICflo

CLASSICflo

10/105 10/145 14/175 15/270 20/360

Input (gross) kW 12.3 12.9 17.6 19.0 24.9

Input (net) kW 11.1 11.6 15.8 17.1 22.4

Output (gross) kW 9.84 10.32 14.08 15.2 19.92

Efficiency (net) %88 88 88 88 88

Efficiency (gross) %80 80 80 80 80

Gas Flow Rate (NG) m3/hr 1.03 1.08 1.47 1.59 2.08

Gas Flow Rate (LPG) m3/hr 0.38 0.42 0.55 0.60 0.79

Main Burner Pressure mbar 12.0 12.0 12.0 12.0 12.0

NOx (NG) ppm 12 19 23 14 17

NOx (NG) mg/kWh 21 33 40 25 31

NOx (LPG) ppm 96 148 70 98 93

NOx (LPG) mg/kWh 169 260 123 173 164

CO2 Flue Gas (NG) %7.00 - 9.00

8.00 - 9.00 8.50 - 9.90 8.00 - 9.00 7.50 - 9.70

CO2 Flue Gas (LPG) % 8.50 - 9.50

10.00 - 10.50

8.50 - 9.50 9.00 - 9.50 8.50 - 9.50

Noise Level dBA 40 40 40 40 40

Recovery Rate (through 50°C rise) l/h 169 177 241 261 341

Recovery Rate (through 56°C rise) l/h 151 158 216 233 305

Minimum Flow Rate l/s N/A N/A N/A N/A N/A

Water Content Litres 105 144 175 270 360

Weight Empty kg 55 65 82 111 153

Weight Full kg 159 209 257 380 512

Shipping Weight kg 64 74 91 120 188

Storage Losses kWh/l/day 0.14 0.14 0.19 0.23 0.32

Inlet/Outlet Connections Inch BSP 3/4” 3/4” 3/4” 1” 1.25”

Return Connection Inch BSP 3/4” 3/4” 3/4” 1” 1.25”

Gas Connection Inch BSP 1/2” 1/2” 1/2” 1/2” 1/2”

Condensate Connection mm N/A N/A N/A N/A N/A

Twin Pipe Conventional mm N/A N/A N/A N/A N/A

Flue Diameter (secondary) mm 100 100 100 125 125

Flue Diameter (concentric) mm N/A N/A N/A N/A N/A

Ionisation Current (min) µA0.8 0.8 0.8 0.8 0.8

Ionisation Current (max) µA30 30 30 30 30

Electrical Requirements V230 230 230 230 230

Power Consumption W120 120 120 120 120

Fuse Rating A33333

Maximum Flue Gas Temperature °C 300 300 300 300 300

Flue Static Pressure mbar N/A N/A N/A N/A N/A

Waterside Pressure Loss kPa N/A N/A N/A N/A N/A

Maximum Outlet Temperature °C 80 80 80 80 80

Maximum Working Pressure Bar 10.3 10.3 10.3 10.3 10.3

Minimum Working Pressure Bar 1.0 1.0 1.0 1.0 1.0

Diameter mm 508 559 559 660 718

Water Heater Height mm 1130 1200 1432 1527 1692

Height to Vent Connection

1242 1311 1532 1629 1845

2.3 ErP data

CLASSICflo 10/105

10/145

14/175

15/270

20/360

Declared load profile

Water heating energy efficiency class

Water heating energy efficiency %63 64 63 60 62

Annual energy consumption

(1)

63 64 60 65 61

Annual energy consumption

(2)

23 22 24 24 24

Other load profiles for which the water heater is suitable to use and the corresponding

water heating energy efficiency and annual electricity consumption(3)

-----

Thermostat temperature setting °C 60 60 60 60 60

Sound power level L

indoors

40 40 40 40

Ability to off

peak hours functioning

(3)

Enables smart control settings

(4)

(1) Electricity

(2) Fuel

(3) If applicable.

(4) If smart control settings value is "1", the water heating energy efficiency and annual electricity and fuel consumption only relate to enabled smart control settings.

CLASSICflo Natural Gas

10/105

10/145

14/

175

15/270

20/360

Daily electricity consumption Qelec kWh 0.17 0.17 0.16 0.18 0.17

Declared load profile

Sound power level, indoors LWA dB

40 40 40 40

Daily fuel consumption Qfuel kWh 33 33 33 35 36

Emissions of nitrogen oxides NOxmg/kW

21 33 40 25 31

Weekly fuel consumption with smart controls Qfuel, week, smart kWh -----

Weekly electricity consumption with smart controls Qelec, week, smart kWh -----

Weekly fuel consumption without smart controls Qfuel, week kWh -----

Weekly electricity consumption without smart controls Qelec, week kWh -----

Storage volume VI105 144 175 270 360

Mixed water at 40 °C V40 I120 195 240 498 1075

Harmonised standards applied EN: 13203-2

Specific precautions that shall be taken when the

water heater is assembled, installed or maintained:

Before any assembly, installation or maintenance the installation and

operation manual has to be read attentively and be followed

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