andrews 32/143 Manuel utilisateur
NATURAL GAS
FIRED STORAGE
WATER HEATERS
HI-FLO RANGE
Models
32/143, 65/173,
81/264, 62/341,
54/418, 54/440
Permanent Pilot,
Auto Ignition
with Flue Damper
‘E’/‘F’ Series
STANDARD RANGE
Models
24/39, 32/40, 40/61,
63/62, and 84/87
Permanent Pilot,
Auto Ignition ‘G’ Series
INSTALLATION
GUIDE,
OPERATION
AND SERVICE
MANUAL
T H I S M A N U A L M U S T B E K E P T W I T H T H E A P P L I A N C E
April 2007 Part No. E132
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© Copyright Andrews Water Heaters 2007
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 U.K. users is
drawn to their responsibilities under the Health and Safety Regulations 1993.
All installation and service on the Andrews Water Heater 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.
The 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:
Andrews Water Heaters
Wood Lane, Erdington, Birmingham B24 9QP
Technical Helpline
Tel: 0845 070 1057 Fax: 0845 070 1059
THE ANDREWS WATER HEATERS COVERED IN THIS MANUAL
ARE FOR USE WITH NATURAL GAS ONLY
CONTENTS
SECTION 1 GENERAL AND SAFETY INFORMATION
General Information 2
British Standards 2
Health and Safety Regulations 1993 3
Legionellae in Water Heaters 3
SECTION 2 TECHNICAL DATA
Standard Range 4
Hi-Flo Range 5
SECTION 3 INSTALLATION
Introduction 6
Draught Diverter 6
Location 6
Gas Supply 7
Electrical Supply 8
Flue Systems 10
Air Supply and Ventilation 12
Water Quality and Treatment 14
Water Connections- Hydrojet System 15
Vented Systems, Standard Range 16
Unvented Systems, Standard Range 18
Vented Systems, Hi-Flo Range 20
Unvented Systems, Hi-Flo Range 23
SECTION 4 COMMISSIONING
Standard Range 26
Hi-Flo Range 28
SECTION 5 OPERATION
Standard Range 35
Hi-Flo Range 35
SECTION 6 SERVICING
Introduction 36
Burner Assembly, Standard Range 36
Burner Assembly, Hi-Flo Range 36
Gas Control Valve, Standard Range 37
Gas Control Valve, Hi-Flo Range 37
Flue Ways 37
Cleaning the Storage Vessel 38
Magnesium Anode(s) 38
Safety Valve 38
SECTION 7 REPLACING COMPONENTS, Hi-Flo RANGE
Gas Control Valve 40
Burner 40
SECTION 8 FAULT FINDING
Permanent Pilot Models - Standard and Hi-Flo Range 41
All Models 42
Auto Ignition Models, Hi-Flo Range 43
SECTION 9 PARTS LISTS AND ILLUSTRATIONS
Standard Range 45
Hi-Flo Range 46
Unvented Systems Kit 50
24V Auto System Kit 52
PAGE
GENERAL AND SAFETY INFORMATIONSECTION 1
The Andrews Water Heater has been designed for use with NATURAL GAS 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.
STANDARD RANGE
BS 6700: 1997 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 1:2000 Specification for installation of flues.
Part 2:2000 Specification for installation of ventilation for gas appliances.
BS 5546:1990 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 7206:1990 Specification for unvented hot water storage units and packages.
I/M2 Purging procedures for non-domestic gas installations.
I/M5 Soundness testing procedures for industrial and commercial gas
installations.
I/M11 Flues for commercial and industrial gas fired boilers and air heaters.
I/M16 Notes on installation of gas pipework
(excluding 25mm and below).
IGE/UP/10 Pt.1
Edition 2 Installation of Gas Appliances in Industrial and Commercial Premises
Hi-Flo RANGE
As STANDARD RANGE plus:
BS 6644: Installation of gas fired hot water boilers of rated inputs between
60kW and 2MW.
NOTE: Consideration should be given to amendments or updates to the
above standards.
GENERAL
INFORMATION
BRITISH
STANDARDS
AND CODES OF
PRACTICE
2
GENERAL AND SAFETY INFORMATION SECTION 1
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.
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 Legionellae
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 Legionellae bacteria. These
factors include stagnation, lukewarm conditions (20ºC to 45ºC) 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 legionellae bacteria.
Experiments were conducted to determine whether, following a substantial challenge by
legionellae pneumophilia, after overnight and stagnation conditions, the system was
rendered free from viable recoverable legionellae. It was found that at 61ºC, 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
legionellae 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 legionellae resistant as it is considered unlikely that, at the temperature tested, the
organism would colonise the water heater and present a possible health risk.
HEALTH AND
SAFETY
REGULATIONS
1993
EFFECTIVENESS
IN COMBATING
LEGIONELLAE
3
TECHNICAL DATASECTION 2
STANDARD
RANGE
4
Storage Capacity l 109 145 182 286 382
gal 24 32 40 63 84
Recovery thro' 44ºC/80ºF l/h 178 182 278 281 397
gal/h 39 40 61 62 87
Recovery thro' 56ºC/100ºF l/h 142 146 220 227 316
gal/h 31 32 49 50 70
Heat Input Gross kW 12 12.5 19 19 26
Btu/h 40,944 42,650 65,000 65,000 88,712
Heat Input Net kW 11 11.4 17 17 24
Btu/h 37,532 38,900 58,004 58,004 81,888
Gas NATURAL CAT I2H
Burner Gas Pressure mbar 10 10 10 10 10
ins wg. 4 4 4 4 4
Max. Gas Input Pressure mbar 35 35 35 35 35
ins wg. 14 14 14 14 14
Gas Flow Rate m3/h 1.12 1.16 1.78 1.78 2.43
ft3/h 39.4 41.22 62.86 62.86 85.71
Gas Connection Rc (in BSP Int) 1/2 1/2 1/2 1/2 1/2
Flue Gas Temp. ºC 200 205 195 160 125
Flue Gas Volume m3/h 17 18 26 31 37
Gas Injector Orifice Diameter mm 2.95 3.05 3.86 3.86 4.22
in 0.116 0.120 0.152 0.152 0.166
Flue Size (Secondary) mm 100 100 100 125 125
in 4 4 4 5 5
Cold Water Feed Connection R (in BSP/Exl) 1 1 1 1 11/4
Hot Water Flow Connection R (in BSP/Exl) 1 1 1 1 11/4
*Return Connection Rp (in BSP/Int) 3/4 3/4 3/4 3/4 3/4
Drain Port Size R (in BSP/Ext) 3/4 3/4 3/4 3/4 3/4
Max. Working Pressure bar 10.3 10.3 10.3 10.3 10.3
lbf/in2150 150 150 150 150
Max. Test Pressure bar 20.6 20.6 20.6 20.6 20.6
lbf/in2300 300 300 300 300
Weight Empty kg 43 57 65 110 181
lb 94 126 144 244 400
Weight Full kg 151 202 247 396 562
lb 334 446 544 874 1240
Shipping Weight kg 44 59 68 120 194
lb 98 131 150 264 428
Shipping Dimensions Depth mm 546 587 587 692 914
in 211/2 231/8 231/8 271/4 36
Shipping Dimensions Width mm 486 537 537 651 762
in 19 1/8 21 1/8 21 1/8 25 5/8 30
Shipping Dimensions Height mm 1194 1245 1499 1575 1829
in 47 49 59 62 72
ANDREWS MODEL NO. 24/39 32/40 40/61 63/62 84/87
TECHNICAL DATA SECTION 2
5
Storage Capacity l 145 295* 368* 282* 245* 245
gal 32 65 81 62 54 54
Recovery thro' 44ºC/80ºF l/h 649 786 1199 1549 1900 1998
gal/h 143 173 264 341 418 440
Recovery thro' 56ºC/100ºF l/h 517 629* 959 1239* 1520* 1598*
gal/h 114 138 212 273 334 352
Recovery thro' 72ºC/130ºF l/h 399 484* 730 953* 1169* 1223*
gal/h 88 106 162 210 257 270
Heat Input Gross kW 42.8 50 80 102 128 139
Btu/h 146,034 170,600 272,960 384,024 436,736 474,268
Heat Input Net kW 39 45 73 93 116 126
Btu/h 133,068 153,540 249,076 317,316 395,792 430,000
Gas NATURAL CAT I2H
Burner Gas Pressure mbar 6.8 6.8 6.8 6.8 6.8 N/A
Pernament Pilot ins wg. 2.73 2.73 2.73 2.73 2.73 N/A
Burner Gas Pressure mbar 10 10 10 10 10
Auto Ignition ins wg. 4 4 4 4 4
Max. Gas Input Pressure mbar 35 35 35 35 35
ins wg. 14 14 14 14 14
Gas Flow Rate m3/h 4.0 4.68 7.44 9.48 11.94 13.14
ft3/h 141 164.76 263.58 336.24 421.98 465.06
Gas Connection Rc (in BSP Int) 3/4 3/4 3/4 3/4 3/4 3/4
Flue Gas Temp. ºC 117 140 150 195 185 215
Flue Gas Volume m3/h 62 73 116 149 186 202
Gas Injector Orifice Diameter mm 2.69 2.87 3.66 3.45 3.50 N/A
Permanent Pilot in 0.106 0.113 0.144 0.136 0.138 N/A
Gas Injector Orifice Diameter mm 2.40 2.58 3.25 3.18 N/A 3.26
Auto Ignition in 0.094 0.101 0.127 0.125 N/A 0.128
Flue Size (Secondary) mm 150 150 200 200 250 250
in 6 6 8 8 10 10
Cold Water Feed Connection R (in BSP/Exl) 11/2 11/2 11/2 11/2 11/2 11/2
Hot Water Flow Connection R (in BSP/Exl) 11/2 11/2 11/2 11/2 11/2 11/2
*Return Connection Rp (in BSP/Int) 3/4 3/4 3/4 3/4 3/4 3/4
Drain Port Size R (in BSP/Ext) 3/4 3/4 3/4 3/4 3/4 3/4
Max. Working Pressure bar 10.3 10.3 10.3 10.3 10.3 10.3
lbf/in2150 150 150 150 150 150
Max. Test Pressure bar 20.6 20.6 20.6 20.6 20.6 20.6
lbf/in2300 300 300 300 300 300
Weight Empty kg 190 200 289 257 269 269
lb 419 441 637 566 594 594
Weight Full kg 335 495 656 538 514 514
lb 738 1091 1447 1186 1134 1134
Shipping Weight kg 199 223 316 282 293 293
lb 438 492 697 623 645 645
Shipping Dimensions Depth mm 902 914 914 914 914 914
in 35 1/2 36 36 36 36 36
Shipping Dimensions Width mm 768 762 762 762 762 762
in 30 1/4 30 30 30 30 30
Shipping Dimensions Height mm 1270 1960 2083 1960 1960 1960
in 50 77 82 77 77 77
ANDREWS MODEL NO. 32/143 65/173 81/264 62/341 54/418 54/440
Hi-Flo
RANGE
* If the water heater is to be
used on an unvented system,
the combined temperature/
pressure relief valve must be
fitted directly into the tank.
The secondary return is then
connected to the drain port
via a suitable tee.
Autres manuels pour 32/143
2
Ce manuel convient aux modèles suivants
10
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