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Table of Contents
1.0 INTRODUCTION ..................................................................................................................................................................................................................... 4
2.0 PRINCIPAL PARTS ................................................................................................................................................................................................................ 5
3.0 TECHNICAL DATA ............................................................................................................................................................................................................... 17
4.0 GENERAL REQUIREMENTS ............................................................................................................................................................................................... 20
4.1 RELATED DOCUMENTS .................................................................................................................................................................................................. 20
5.0 WATER QUALITY ................................................................................................................................................................................................................. 21
5.1 WATER CHEMISTRY ........................................................................................................................................................................................................ 21
5.2 AIR/DIRT SEPARATION ................................................................................................................................................................................................... 21
5.3 WATER PRESSURE ......................................................................................................................................................................................................... 21
6.0 LOCATION ............................................................................................................................................................................................................................ 22
6.1 PLANT ROOM REQUIREMENTS ..................................................................................................................................................................................... 22
6.2 GENERAL REQUIREMENTS ........................................................................................................................................................................................... 22
6.3 CLEARANCES .................................................................................................................................................................................................................. 22
6.4 MOUNTING THE BOILER ................................................................................................................................................................................................. 22
6.4.1 MOUNTING THE BOILER ON A FRAME ..................................................................................................................................................................... 22
6.4.2 MOUNTING THE BOILER ON THE WALL ................................................................................................................................................................... 22
6.5 CONDENSATE DRAIN...................................................................................................................................................................................................... 23
6.6 FILLING THE CONDENSATE TRAP ................................................................................................................................................................................ 23
7.0 GAS SUPPLY ........................................................................................................................................................................................................................ 23
7.1 SERVICE PIPES ............................................................................................................................................................................................................... 23
7.2 METERS ............................................................................................................................................................................................................................ 24
7.3 GAS SUPPLY PIPES ........................................................................................................................................................................................................ 24
7.4 BOOSTED GAS SUPPLIES .............................................................................................................................................................................................. 24
7.5 PLANT-ROOM CONTROL VALVE ................................................................................................................................................................................... 24
7.6 EQUIPMENT GAS SYSTEM LEAK CHECK ..................................................................................................................................................................... 24
8.0 FLUE SYSTEM ...................................................................................................................................................................................................................... 24
8.1 FLUE TERMINAL LOCATIONS ........................................................................................................................................................................................ 24
8.2 APPROVED FLUE SYSTEM ............................................................................................................................................................................................. 25
8.2.1 TYPE B
23P
FLUE GAS SYSTEMS ................................................................................................................................................................................. 25
8.3 INSTALLATION PRECAUTIONS ...................................................................................................................................................................................... 26
8.4 MAXIMUM LENGTH – CONCENTRIC FLUE ................................................................................................................................................................... 26
8.4.1 WORKED EXAMPLE – CONCENTRIC FLUE .............................................................................................................................................................. 26
8.5 MAXIMUM LENGTH – CONVENTIONAL/TWIN-PIPE FLUE ........................................................................................................................................... 26
8.5.1 WORKED EXAMPLE – CONVENTIONAL FLUE ......................................................................................................................................................... 27
8.5.2 WORKED EXAMPLE – TWIN-PIPE FLUE ................................................................................................................................................................... 28
8.6 FLUE DISCHARGE ........................................................................................................................................................................................................... 28
8.7 FLUE TERMINAL INSTALLATION.................................................................................................................................................................................... 28
8.7.1 TYPE B
23
(CONVENTIONAL FLUE) ............................................................................................................................................................................. 28
8.7.2 TYPE C
13
(HORIZONTAL BALANCED FLUE) .............................................................................................................................................................. 29
8.7.3 TYPE C
33
(VERTICAL BALANCED FLUE) ................................................................................................................................................................... 29
8.7.4 TYPE C
43
........................................................................................................................................................................................................................ 30
8.7.5 TYPE C
53
(TWIN PIPE FLUE) ....................................................................................................................................................................................... 30
8.8 COMMON FLUE SYSTEMS ............................................................................................................................................................................................. 30
8.9 FLUE TERMINAL GUARDING .......................................................................................................................................................................................... 31
8.10 CONDENSATE DRAIN...................................................................................................................................................................................................... 31
9.0 AIR SUPPLY ......................................................................................................................................................................................................................... 31
9.1 COMBUSTION VENTILATION .......................................................................................................................................................................................... 31
9.2 COOLING VENTILATION ................................................................................................................................................................................................. 32
9.3 MECHANICAL VENTILATION .......................................................................................................................................................................................... 32
9.3.1 WORKED EXAMPLE – MECHANICAL INLET/NATURAL DISCHARGE ..................................................................................................................... 32
9.3.2 WORKED EXAMPLE – MECHANICAL INLET/MECHANICAL DISCHARGE (MINIMUM COMBUSTION AIR FLOW RATE) .................................. 33
9.3.3 WORKED EXAMPLE – MECHANICAL INLET/MECHANICAL DISCHARGE (ALTERNATE COMBUSTION AIR FLOW RATE): ............................ 33
10.0 WATER CONNECTIONS ...................................................................................................................................................................................................... 33
10.1 FLOW/RETURN CONNECTIONS..................................................................................................................................................................................... 33
10.2 OPEN VENTED SYSTEM ARRANGEMENT .................................................................................................................................................................... 33
10.3 SEALED SYSTEM ARRANGEMENT ............................................................................................................................................................................... 34
10.3.1 EXPANSION VESSEL SIZING ...................................................................................................................................................................................... 34
10.4 CIRCULATING PUMPS..................................................................................................................................................................................................... 34
10.5 DIRT SEPARATOR/STRAINER ........................................................................................................................................................................................ 38
10.6 AIR SEPARATOR .............................................................................................................................................................................................................. 38
10.7 ROOF-TOP INSTALLATION ............................................................................................................................................................................................. 38
10.8 INSTALLATION SCHEMATIC DRAWINGS ...................................................................................................................................................................... 38
11.0 ELECTRICAL SUPPLY ........................................................................................................................................................................................................ 41
11.1 CONNECTOR STRIP ........................................................................................................................................................................................................ 41
11.2 ARC WELDING PRECAUTIONS ...................................................................................................................................................................................... 43
11.3 ANCILLARY EQUIPMENT ................................................................................................................................................................................................ 43
11.3.1 OUTSIDE TEMPERATURE SENSOR .......................................................................................................................................................................... 43
11.3.2 SAFETY CIRCUIT ......................................................................................................................................................................................................... 43
11.4 CASCADE CONTROL ....................................................................................................................................................................................................... 43
11.4.1 CASCADE WIRING ....................................................................................................................................................................................................... 43
11.4.2 CASCADE SENSOR ..................................................................................................................................................................................................... 43
11.5 TIME, TEMPERATURE AND ZONE CONTROL .............................................................................................................................................................. 43
11.6 CP-M+ WIRING DIAGRAM ............................................................................................................................................................................................... 44