Install Instructions
Table Of Contents
- Table of Contents
- 1 Key to symbols and safety instructions
- 1.1 Key to symbols
- 1.2 General safety instructions
- 2 Scope of delivery
- 3 Information about the appliance
- 3.1 Proper use
- 3.2 Overview of boiler types
- 3.3 Rating plate
- 3.4 Appliance description
- 3.5 Accessories
- 3.6 Product dimensions and minimum clearances
- 3.7 Appliance layout heating boiler KBR..-3A
- 3.8 Appliance layout combi boiler KWB..-3A
- 3.9 Electrical wiring heating boiler KBR..-3A
- 3.10 Electrical wiring combi boiler KWB..-3A
- 3.11 Technical data heating boiler KBR 16-3
- 3.12 Technical data heating boiler KBR 21 -3
- 3.13 Technical data heating boiler KBR 28-3
- 3.14 Technical data heating boiler KBR 35-3
- 3.15 Technical data heating boiler KBR 42-3
- 3.16 Technical data combi boiler KWB 28-3
- 3.17 Technical data combi boiler KWB 35 - 3
- 3.18 Technical data combi boiler KWB 42 - 3
- 3.19 Condensate composition
- 4 Regulations
- 5 Common Applications of KBR boilers
- 6 Installation
- 6.1 Installation and operation
- 6.1.1 Notes on installation and operation
- Fill and make-up water for the heating system
- Recommended steps for commissioning a new or retrofit boiler installation
- Recirculation pump/DHW recirculation lines
- Open vented heating systems
- Gravity heating systems
- Galvanized radiators or pipes.
- Plastic pipe work
- Use of a room temperature control
- Primary-secondary piping or a Low Loss Header (LLH)
- Water Chemistry Guidelines
- Corrosion inhibitors
- Boiler sealer
- LPG
- 6.1.2 Other important information
- 6.1.1 Notes on installation and operation
- 6.2 Comparing the size of the integrated expansion vessel (KWB-3A boiler only)
- 6.3 KBR..-3A appliances (heating boilers): Selecting an expansion vessel
- 6.4 Selecting the installation location
- 6.5 Low Loss Header (LLH) utilization
- 6.6 Locating the appliance
- 6.7 Installing a low water cut off (LWCO)
- 6.8 Connecting flue gas accessories
- 6.9 Testing gas and water connections for leaks
- 6.1 Installation and operation
- 7 Making the electrical connections
- 8 Commissioning
- 8.1 Before operating the appliance
- 8.2 Switching the appliance ON/OFF
- 8.3 Setting up space heating
- 8.4 Programming the FW 200 heating control unit (optional accessory)
- 8.5 FW 200 outdoor reset heating control quick start (optional accessory)
- 8.6 After commissioning
- 8.7 KBR..-3A appliances (heating boilers) with DHW tank: Setting the DHW temperature
- 8.8 KWB..-3A appliances (combi boilers): Setting the DHW temperature
- 8.9 Setting manual summer mode
- 8.10 Setting frost protection
- 8.11 Activating the key pad lock
- 9 KBR..-3A appliances (heating boiler) with DHW tank: Thermal disinfection
- 10 Boiler circulator
- 11 Heatronic boiler control settings
- 11.1 Guideline to service functions
- 11.2 Overview of the service functions
- 11.3 Description of the service functions
- 11.3.1 First service level
- Service function 1.A: Maximum space heating output
- Service function 1.b: Maximum DHW output
- Service function 1.E: Pump mode for space heating operation
- Service function 1. F: Pump mode (only heating boiler KBR..-3A)
- Service function 2.A: Heating circuit pump lockout time (only heating boiler KBR..-3A)
- Service function 2.b: Maximum supply temperature
- Service function 2.C: Purging function
- Service function 2.d: Thermal disinfection (legionella protection)
- Service function 2.F: Operating mode
- Service function 3.A: Automatic anti-cycle function
- Service function 3.b: Set anti-cycle time
- Service function 3.C: Switching differential
- Service function 3.d: Minimum output (heating and DHW)
- Service function 3.E: Cycle time, keeping DHW hot (only combi boiler KWB..-3A)
- Service function 3.F: Constant DHW period (only combi boiler KWB..-3A)
- Service function 4.b: Maximum heat exchanger temperature (only combi boiler KWB..-3A)
- Service function 4.d: Audible fault warning tone
- Service function 4.E: Appliance type
- Service function 4.F: Condensate trap filling sequence
- Service function 5.A: Reset inspection interval
- Service function 5.b: Fan post purge time
- Service function 5.E: Functionality of black plug in boiler junction box
- Service function 5.F: Set inspection interval
- Service function 6.A: Display the latest fault code
- Service function 6.b: Room temperature control, current voltage, terminal 2
- Service function 6.C: Supply temperature required by weather compensation control
- Service function 6.d: Current DHW turbine flow rate (only combi boiler KWB..-3A)
- Service function 7.A: Indicator lamp for burner operation / faults
- Service function 7.b: 3-way valve in center position
- Service function 7.d: Connecting an external supply or low-loss header temperature sensor
- Service function 7.E: Building drying function
- Service function 0.A: Do not use this setting!
- Service function 0.d: Altitude adjustment
- Service function 0.E: Metric or US customary units
- 11.3.2 Second service level
- Service function 8.A: Software version
- Service function 8.b: Code plug number
- Service function 8.C: GFA Gas burner control unit status
- Service function 8.d: GFA Gas burner control unit fault
- Service function 8.E: Restore boiler to factory settings
- Service function 8.F: Permanent ignition
- Service function 9.A: Constant mode
- Service function 9.b: Current fan speed
- Service function 9.C: Current boiler output
- Service function 9.d: Set fan start speed
- Service function 9.E: Turbine signal delay (only combi boiler KWB..-3A)
- Service function 9.F: Heating zone pump post purge
- Service function A.b: Display DHW temperature
- Service function A.C: Display DHW tank temperature
- Service function b.F: Solar DHW backup heating delay (only combi boiler KWB..-3A)
- Service function C.d: Display current heat demand
- 11.3.1 First service level
- 12 Gas type conversion
- 13 Flue gas test
- 14 Environmental responsibility/disposal
- 15 Inspection and maintenance
- Heat exchanger
- Heatronic boiler control
- Notes on installation and operation
- After the inspection/maintenance
- 15.1 Description of various steps
- 15.1.1 Calling up the latest fault (service function 6.A)
- 15.1.2 Fresh water filter (only combi boiler KWB..-3A)
- 15.1.3 Plate type heat exchanger (only combi boiler KWB..-3A)
- 15.1.4 Checking the electrodes
- 15.1.5 Burner servicing
- 15.1.6 Heat exchanger block inspection and cleaning
- 15.1.7 Condensate trap cleaning
- 15.1.8 Checking the mixer diaphragm
- 15.1.9 Expansion vessel
- 15.1.10 Setting the boiler water pressure
- 15.1.11 Testing system water quality
- 15.1.12 Inspecting electrical wiring
- 15.2 Checklist for annual inspection and maintenance
- 16 Readings on the display
- 17 Faults
- 18 Commissioning log for the appliance
- 19 Spare parts
- Index
Making the electrical connections | 47
6 720 810 590 (2015/05)
Greenstar FS
7.2.5 Connecting mains power supply
▶ Route the power cable (AC 120 V, 60 Hz) from the emergency
shutoff switch to the boiler.
▶ Insert cable into the junction box as shown in Fig. 49.
▶Connect cable to the white plug according to Fig. 48.
Fig. 48 Attach plug (mains power supply)
[1] L (120 VAC, 60 Hz)
[2] PE (GND, Ground)
[3] N (Neutral)
[4] White plug (in the junction box upon delivery)
▶ Connect white plugs and insert grommet until stop.
Fig. 49 Cable connected (mains power supply)
▶ Mount junction box on the rail.
7.2.6 Low voltage (LV) junction box
The low voltage installer junction box provides connections to sensors,
thermostat and programmers.
Bosch room controls
Connect only Bosch room controls to the internal BUS of this boiler.
For installation and electrical connection of Bosch controls, see
installation instructions for the Bosch control.
Connecting external manual reset high limit or low water cut off
(LWCO)
This connection allows the installation of external safety switches.
• External manual reset high limit
• Low water cut-off (LWCO)
• Radiant overheat protection
Fig. 50 Low voltage (LV) connections
Fig. 51 Low voltage (LV) terminals (pre-wire links not shown for
simplicity)
[1] BUS - BUS connection to programmer
[2] TT - Thermostat/On demand signal (pre-wired link) (dry contact)
[3] Out Sen - Outdoor temperature sensor (included with FW200
accessory)
[4] LWCO - Low Water Cut Off switch (pre-wired link) (external 24V
power required)
[5] DHW Sen - Domestic Hot Water tank temperature sensor
[6] Empty (future connectivity)
1
2
3
4
6 720 641 933-36.2O
6720810590-61.2Wo
L PE N
white
Mains
120V/60Hz
L PE N
red
Storage
tank pump
L PE N
black
CH pump
for mixed heating
8 737 701 503
I III III III
Remove the link if using these connection points
6720810590-68.1Wo
6720810590-57.1Wo (2014/11)
1
2
3
4
56
BUS
TT
Out Sen
DHW Sen
LWCO