Bosch Singular 5200 User Manual

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User Manual
Singular Combi Boiler - BTC 439003302 A (2021/03)
4 Inspection and Maintenance
Annual service and maintenance is required for the safe and long service life of the
appliance, for effi cient and economical operation, and to keep the environmental
impact as low as possible. Owners/operators are encouraged to sign a service and
maintenance contract with a trained and certifi ed installer for annual servicing and
maintenance of the boiler.
WARNING: ELECTRIC SHOCK HAZARD
 Always disconnect the appliance from the main power
supply before performing any work. Disconnect the
emergency shutoff switch or disengage the heating system
circuit breaker. Take measures to prevent accidental
re-connection.
WARNING: SCALD HAZARD
 The boiler may remain hot for few minutes after it is turned
off. Wait until the boiler has cooled down before cleaning to
prevent burns.
WARNING: SCALD HAZARD
 The boiler may remain hot for few minutes after it is turned
off. Wait until the boiler has cooled down before cleaning to
prevent burns.
WARNING: SCALD HAZARD
 The boiler may remain hot for few minutes after it is turned
off. Wait until the boiler has cooled down before cleaning to
prevent burns.
WARNING: EXPLOSION!
 Close the gas supply shutoff valve prior to working on the
gas train.
 Check for gas leaks after carrying out work on the gas train.
WARNING: RISK OF FLUE GAS POISONING
 Check for leaks after carrying out work on the venting
system.
NOTICE: INSUFFICIENT ANTIFREEZE CAN ACCELERATE CORROSION
 Frost protection level has to be checked annually during the
regular scheduled maintenance of the condensing boiler.
4.1 Draining the Boiler
To perform maintenance tasks or to prevent the boiler from freezing when it will not
be used for an extended period, the boiler must be drained.
To drain the boiler:
1. Press the
button to turn off the boiler.
2. Disconnect the power supply to the boiler.
3. Turn of the gas valve.
Figure 22
Gas
4. Turn off the water supply valve on the inlet to the boiler.
Figure 23
Hot waterCold water
If there is no water supply valve, turn off the water supply at the water
main.

Bosch Singular 5200 Specifications

General

Brand	Bosch
Model	Singular 5200
Category	Boiler
Language	English