4 | Appliance information
Product Name6 720 ... ... (YYYY/MM)
2 Appliance information
2.1 General information
Boiler features and checklist
• Pre-wired and pre-plumbed
• Galvanised steel inner frame
• Bosch EMS control system
• Automatic ignition
• Direct burner ignition electrodes
• Built-in frost protection
• Built-in fault finding diagnostics
• Modulating automatic gas valve
• Combustion air fan with speed regulator
• CH temperature sensor and control
• Flue gas overheat sensor
Fig. 1 Standard package
2.2 Intended use
These appliances may only be used in a closed loop hot water central
heating system.
Any other purpose is considered improper use. Any damage resulting
from misuse is excluded from the manufacturer’s guarantee.
The commercial or industrial use of the appliance to produce process
heat is not permitted.
Only use genuine gas from official gas suppliers.
Ensure the appliance is operated within the limits on the data label and
parameters in this manual.
2.3 Declaration of conformity
This product, in design and operation, conforms to the European
Directives and supplementary national requirements.
Compliance is demonstrated by the CE marking.
You can request the declaration of conformity of the product. To do so,
send your request to the address on the back of the manual.
The appliances meet the requirements for gas-fired condensing boilers
in terms of energy saving regulations.
The appliances are tested according to EN 677.
2.4 Type plate
The type label contains information on device performance, the
registration data and the serial number.
2.5 Type overview
KSBR units, heat only gas-fired condensing boilers with an integrated
circulating pump and optional 3-way valve for the connection of the hot
water tank.
KBR units, heat only, gas-fired condensing boilers without a circulating
pump or optional three way valve, for use in systems where this is
provided externally.
2.5.1 Electrical supply
• Supply: 230V - 50 Hz
• External “Quick blow” 3A fuse
• The appliance must be earthed
• IPX4D
• The wiring between the appliance and the electrical supply must
comply with the latest IEE wiring regulations that apply to wiring a to
a fixed appliance
• Any system connected to the appliance must not have a separate
electrical supply
2.5.2 Gas supply
• Boilers using Natural Gas (NG) must be connected to a governed
meter.
• Liquid Petroleum Gas (LPG) must be connected to a regulator.
• Installation and connection of the gas supply to the boiler must be in
accordance with country and local regulations.
• Under no circumstance should be size of the gas supply pipe be less
than DN20.
• The meter or regulator and pipe work to the meter must be checked,
by the gas supplier. This is to ensure that the equipment is in good
working order and can meet the gas flow and pressure requirements,
in addition to the demand from any other appliance being served.
CHECK LIST - LITERATURE PACK: Qty.
1 Installation, Commissioning and Servicing Instructions 1
Users Instructions
1
Table 2 Literature pack - checklist
CHECK LIST - INSTALLATION PACK: Qty.
2 PRV discharge pipe 1
3 Levelling feet 4
Table 3 Installation pack - checklist
6720809859-47.1Wo
1
2
3
K Floor standing appliance
S Built-in circulation pump & optional 3 way diverter valve
B Condensing technology
R Modulating burner
16 output up to 16 kiloWatts
30 output up to 30 kiloWatts
42 output up to 42 kilowatts
Table 4 Appliance designation
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