Table of Contents
1.0 INTRODUCTION ...................................................................................................................................................................................................................... 4
2.0 SAFETY GUIDELINES............................................................................................................................................................................................................. 5
2.1 GENERAL DESCRIPTION OF SAFETY SYMBOLS USED ................................................................................................................................................ 5
2.2 WHAT TO DO IF YOU SMELL GAS .................................................................................................................................................................................. 6
3.0 PRINCIPAL PARTS ................................................................................................................................................................................................................. 7
4.0 TECHNICAL DATA .................................................................................................................................................................................................................. 9
5.0 DIMENSIONS AND CLEARANCE ......................................................................................................................................................................................... 10
5.1 DIMENSIONAL DRAWINGS ........................................................................................................................................................................................... 10
5.2 CLEARANCES................................................................................................................................................................................................................ 11
6.0 GENERAL REQUIREMENTS ................................................................................................................................................................................................. 12
6.1 RELATED DOCUMENTS ................................................................................................................................................................................................ 12
7.0 WATER QUALITY ................................................................................................................................................................................................................. 13
7.1 WATER QUALITY /HARD WATER .................................................................................................................................................................................. 13
8.0 LOCATION ............................................................................................................................................................................................................................ 13
8.1 PLANT ROOM REQUIREMENTS .................................................................................................................................................................................... 13
8.2 GENERAL REQUIREMENTS .......................................................................................................................................................................................... 13
8.3 CLEARANCES................................................................................................................................................................................................................ 13
8.4 CONDENSATE DRAIN ................................................................................................................................................................................................... 14
9.0 GAS SUPPLY ........................................................................................................................................................................................................................ 14
9.1 SERVICE PIPES ............................................................................................................................................................................................................. 14
9.2 METERS ........................................................................................................................................................................................................................ 14
9.3 GAS SUPPLY PIPES ...................................................................................................................................................................................................... 14
9.4 BOOSTED SUPPLIES .................................................................................................................................................................................................... 14
9.5 PLANT-ROOM CONTROL VALVE .................................................................................................................................................................................. 14
9.6 EQUIPMENT GAS SYSTEM LEAK CHECK ..................................................................................................................................................................... 14
10.0 FLUE SYSTEM ...................................................................................................................................................................................................................... 15
10.1 FLUE SYSTEM GENERAL REQUIREMENTS ................................................................................................................................................................. 15
10.2 FLUE SYSTEM TECHNICAL DETAILS AND MAXIMUM FLUE LENGTH ......................................................................................................................... 16
10.3 FLUE DISCHARGE ......................................................................................................................................................................................................... 16
10.4 CONDENSATE DRAIN ................................................................................................................................................................................................... 16
10.5 APPROVED FLUE SYSTEM ........................................................................................................................................................................................... 18
10.6 INSTALLATION PRECAUTIONS ..................................................................................................................................................................................... 18
10.7 ROOM SEALED (TYPE C) FLUE ASSEMBLY ................................................................................................................................................................. 19
10.8 INSTALLATION OF FLUE TRANSITION KIT TO EKW46CE – EKW61CE WATER HEATERS .......................................................................................... 19
10.9 INSTALLATION OF TRANSITION KIT TO EKW86CE WATER HEATERS ....................................................................................................................... 21
10.10 C13 CONCENTRIC HORIZONTAL FLUE SYSTEMS ................................................................................................................................................ 23
10.11 HORIZONTAL FLUE TERMINAL INSTALLATION .................................................................................................................................................... 24
10.12 FLUE TERMINAL GUARDING ................................................................................................................................................................................. 24
10.13 C33 CONCENTRIC VERTICAL FLUE SYSTEMS ..................................................................................................................................................... 25
10.14 VERTICAL FLUE TERMINAL INSTALLATION .......................................................................................................................................................... 26
10.15 TYPE C
43
(U DUCT) ................................................................................................................................................................................................. 31
10.16 C
53
(TWIN PIPE) FLUE SYSTEMS ........................................................................................................................................................................... 31
10.17 TYPE B
23
(CONVENTIONAL FLUE WITH FAN ASSISTANCE) ................................................................................................................................. 36
10.18 C63 Certified Flue Systems ...................................................................................................................................................................................... 37
11.0 AIR SUPPLY ......................................................................................................................................................................................................................... 38
11.1 COMBUSTION VENTILATION ........................................................................................................................................................................................ 38
11.2 COOLING VENTILATION................................................................................................................................................................................................ 38
12.0 WATER CONNECTIONS ....................................................................................................................................................................................................... 39
12.1 GENERAL ...................................................................................................................................................................................................................... 39
12.2 OPEN VENTED SYSTEM ARRANGEMENT .................................................................................................................................................................... 40
12.3 UN-VENTED SYSTEM ARRANGEMENT ........................................................................................................................................................................ 40
12.4 CIRCULATING PUMPS .................................................................................................................................................................................................. 41
12.5 PRIMARY PIPEWORK HEADER SIZING ........................................................................................................................................................................ 42
13.0 CONTROL OPTIONS/INSTALLATION ................................................................................................................................................................................... 42
13.1 VESSEL TEMPERATURE SENSOR SINGLE WATER HEATER INSTALLATION ............................................................................................................ 43
1.1 VESSEL TEMPERATURE SENSOR MULTIPLE WATER HEATER INSTALLATION ........................................................................................................ 43
13.2 SENSOR WIRING........................................................................................................................................................................................................... 43
14.0 SCHEMATICS ....................................................................................................................................................................................................................... 44
1.1 KEY FOR SCHEMATICS ................................................................................................................................................................................................ 44
14.1 STANDALONE INSTALLATION, SINGLE WATER HEATER ............................................................................................................................................ 45
1.1 BMS INSTALLATION, SINGLE WATER HEATER............................................................................................................................................................ 46
14.2 INSTALLATION, TWO WATER HEATERS WITH SINGLE VESSEL – ALTERNATE LEAD WITH STRAP-ON SENSOR .................................................. 47
14.3 MULTIPLE WATER HEATERS WITH SINGLE VESSEL .................................................................................................................................................. 48
14.4 MULTIPLE WATER HEATERS WITH MULTIPLE LST DIRECT STORAGE VESSELS ..................................................................................................... 49
15.0 ELECTRICAL SUPPLY.......................................................................................................................................................................................................... 50
15.2 EXTERNAL CONTROLS ................................................................................................................................................................................................. 50
15.3 HIGH VOLTAGE CONNECTOR STRIP ........................................................................................................................................................................... 52
15.4 LOW VOLTAGE CONNECTOR STRIP ............................................................................................................................................................................ 52
15.5 ELECTRICAL CONNECTIONS ....................................................................................................................................................................................... 54
15.6 FUSES ........................................................................................................................................................................................................................... 54
15.7 ARC WELDING PRECAUTIONS ..................................................................................................................................................................................... 54
15.8 WIRING DIAGRAM ......................................................................................................................................................................................................... 55
15.9 LADDER DIAGRAM ........................................................................................................................................................................................................ 56
16.0 SMART SYSTEM CONTROL ................................................................................................................................................................................................. 57
16.1 GENERAL ...................................................................................................................................................................................................................... 57
16.2 SMART SYSTEM CONTROL PANEL .............................................................................................................................................................................. 57
16.3 ACCESS MODES ........................................................................................................................................................................................................... 57
16.4 SAVING PARAMETERS ................................................................................................................................................................................................. 58
16.5 STATUS DISPLAY SCREENS ........................................................................................................................................................................................ 60
17.0 COMMISSIONING AND TESTING ......................................................................................................................................................................................... 62
17.1 ELECTRICAL INSTALLATION ........................................................................................................................................................................................ 62
17.2 GAS INSTALLATION ...................................................................................................................................................................................................... 62
17.3 WATER CONNECTIONS ................................................................................................................................................................................................ 62