Table of Contents
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Table of Contents
1
Key to symbols and safety instructions . . . . . . . . . . . . . . . . . . 3
1.1
Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2
General safety instructions . . . . . . . . . . . . . . . . . . . . . . . 4
2
Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1
indirect fired DHW tanks . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2
generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3
Information about the appliance . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1
Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2
Overview of boiler types . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.3
Rating plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.4
Appliance description . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.5
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.6
Product dimensions and minimum clearances . . . . . . . . 7
3.7
Appliance layout heating boiler KBR..-3A . . . . . . . . . . . . 8
3.8
Appliance layout combi boiler KWB..-3A . . . . . . . . . . . 10
3.9
Electrical wiring heating boiler KBR..-3A . . . . . . . . . . . 12
3.10
Electrical wiring combi boiler KWB..-3A . . . . . . . . . . . . 14
3.11
Technical data heating boiler KBR 16-3 . . . . . . . . . . . . 16
3.12
Technical data heating boiler KBR 21 -3 . . . . . . . . . . . . 17
3.13
Technical data heating boiler KBR 28-3 . . . . . . . . . . . . 18
3.14
Technical data heating boiler KBR 35-3 . . . . . . . . . . . . 19
3.15
Technical data heating boiler KBR 42-3 . . . . . . . . . . . . 20
3.16
Technical data combi boiler KWB 28-3 . . . . . . . . . . . . . 21
3.17
Technical data combi boiler KWB 35 - 3 . . . . . . . . . . . . 22
3.18
Technical data combi boiler KWB 42 - 3 . . . . . . . . . . . . 23
3.19
Condensate composition . . . . . . . . . . . . . . . . . . . . . . . . 24
4
Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.1
Compliance with standards and regulations . . . . . . . . . 24
4.2
Operating limits of the boiler . . . . . . . . . . . . . . . . . . . . . 24
4.3
25
5
Common Applications of KBR boilers . . . . . . . . . . . . . . . . . . . 26
5.1
Multiple zones using zone valves with DHW . . . . . . . . . 26
5.1.1 To utilize the LLH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.1.2 Wiring - Multi zone with zone valves and LWCO . . . . . . 27
5.2
Multiple zones using circulators with DHW . . . . . . . . . . 28
5.2.1 To utilize the LLH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.2.2 Wirin g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.1
Installation and operation . . . . . . . . . . . . . . . . . . . . . . . 30
6.1.1 Notes on installation and operation . . . . . . . . . . . . . . . . 30
6.1.2 Other important information . . . . . . . . . . . . . . . . . . . . . 31
6.2
(KWB-3A boiler only) . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6 720 810 590 (2015/05)
6.3
KBR..-3A appliances (heating boilers): Selecting an
expansion vessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.4
Selecting the installation location . . . . . . . . . . . . . . . . . 32
6.5
Low Loss Header (LLH) utilization . . . . . . . . . . . . . . . . 32
6.5.1 To utilize the LLH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.6
Locating the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.6.1 Positioning the appliance . . . . . . . . . . . . . . . . . . . . . . . 33
6.7
Installing a low water cut off (LWCO) . . . . . . . . . . . . . . 34
6.8
Connecting flue gas accessories . . . . . . . . . . . . . . . . . . 35
installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.8.3 Vent and combustion air pipe lengths . . . . . . . . . . . . . . 42
6.9
Testing gas and water connections for leaks . . . . . . . . 43
7
Making the electrical connections . . . . . . . . . . . . . . . . . . . . . 44
7.1
General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
7.2
Electrical connections in the junction boxes . . . . . . . . 44
7.2.1 Access to junction boxes . . . . . . . . . . . . . . . . . . . . . . . . 44
7.2.2 High voltage junction box . . . . . . . . . . . . . . . . . . . . . . . 44
recirculation pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
7.2.5 Connecting mains power supply . . . . . . . . . . . . . . . . . . 45
7.2.6 Low voltage junction box . . . . . . . . . . . . . . . . . . . . . . . . 46
7.3
DHW tank temperature sensor connection . . . . . . . . . 46
7.4
Connecting the LWCO device . . . . . . . . . . . . . . . . . . . . 46
8
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
8.1
Before operating the appliance . . . . . . . . . . . . . . . . . . . 47
8.2
Switching the appliance ON/OFF . . . . . . . . . . . . . . . . . 47
8.3
Setting up space heating . . . . . . . . . . . . . . . . . . . . . . . . 48
8.4
accessory) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
8.5
accessory) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
8.5.1 Setting date and time . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
8.5.2 Setting constant heating (no night set back) . . . . . . . . 49
8.5.3 Setting type of heating system . . . . . . . . . . . . . . . . . . . 49
8.5.4 Adjusting warm weather shut down (WWSD) . . . . . . . 50
8.5.5 Resetting all settings (for installers only) . . . . . . . . . . . 50
8.6
After commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
8.7
KBR..-3A appliances (heating boilers) with DHW tank:
Setting the DHW temperature . . . . . . . . . . . . . . . . . . . 50
8.8
KWB..-3A appliances (combi boilers):
8.9
Setting manual summer mode . . . . . . . . . . . . . . . . . . . . 51
8.10
Setting frost protection . . . . . . . . . . . . . . . . . . . . . . . . . 51
8.11
Activating the key pad lock . . . . . . . . . . . . . . . . . . . . . . 51
9
KBR..-3A appliances (heating boiler) with DHW tank: Thermal
disinfection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
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