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Commissioning the heating system

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6 720 648 163 (2011/05)

3.3

Starting up the system using the 
Aquastat

B

Switch on emergency shut-off switch ("ON" position). 
This turns on the heating system.

Fig. 3

Switching the heating system on/off using the 
emergency shut-off switch (without external 
controls)

3.4

Turning the heating system off

B

Switch off the emergency shut-off switch ("OFF" 
position). This switches off the boiler and all its 
components.

Completing final operations

B

Shut off fuel supply by closing main valve.

3.5

Action in an emergency

In the event of an emergency, e. g. a fire, proceed as 
follows:

B

Never put yourself at risk of fatal injury. Your own 
safety must always take the highest priority.

B

Shut off fuel supply by closing main valve.

B

Isolate the heating system from the mains power 
supply by means of the heating system emergency 
stop switch or the appropriate electrical fuse/circuit 
breaker.

Operating pressure

Design operating pressure
(optimum setting)

_____________ psi (bar)

Maximum heating system 
operating pressure
(standard = 30 psi (2 bar))

_____________ psi (bar)

Table 1

Operating pressure (entered by system installer)

7 747 019 141-35.1RS

CAUTION: 

Risk of system damage from 

freezing.
If the heating system has been switched off, 
it may freeze up.

B

Leave the heating system permanently 
switched on as much as possible.

B

Protect your heating system against 
freezing by draining the heating system 
and hot water pipes at the lowest point.

Use the heating system emergency shutoff 
switch located outside the boiler room or 
the heating system circuit-breaker for 
emergency shutdown.

Summary of Contents for Uni 5000F

Page 1: ...phone Follow the gas supplier s instructions V If you cannot reach your gas supplier call the fire department Installation and service must be performed by a qualified installer service agency or the gas supplier WARNING If the information in this manual is not followed exactly a fire or explo sion may result causing property damage personal injury or loss of life Operating Instructions Low temper...

Page 2: ...ating system 6 3 1 Turning the heating system on 6 3 2 Checking the operating pressure topping up the boiler water and bleeding air from the system 6 3 2 1 Checking the operating pressure 6 3 2 2 Topping up the boiler water and bleeding the system 6 3 3 Starting up the system using the Aquastat 7 3 4 Turning the heating system off 7 3 5 Action in an emergency 7 3 6 Operating tips 8 3 7 Why is regu...

Page 3: ...d notify the police and fire department from outside the building B From outside the building call gas supplier and approved heating contractor If you smell flue gas B Switch off the boiler Æ page 7 B Open windows and doors B Inform an authorized heating contractor Installation B Correct and proper installation and adjustment of the burner and the controls are the fundamental requirements for safe...

Page 4: ...ed by the Bosch warranty Danger by failing to consider your own safety in an emergency such as a fire B Never put yourself at risk Your own safety must always take the highest priority Dangers posed by explosive and flammable materials B Any work on components that carry oil or gas may only be carried out by a certified heating contractor B Do not use or store flammable materials or liquids paper ...

Page 5: ...e manner B All heating system components that have to be replaced should be disposed of in environmentally responsible manner at an authorized disposal site 2 4 Product description The boiler Æ Fig 1 is a low temperature oil or gas fired appliance Your heating contractor or installer has equipped the boiler with an appproved burner The main components of the boiler Æ Fig 1 are Optional Control pan...

Page 6: ...ressure temperature gauge 3 2 2 Topping up the boiler water and bleeding the system Ask your heating contractor to show you where the boiler fill drain valve for topping up the heating system is located in your heating system B If there the fill valve is not hard piped to the water supply you will need to connect a hose B Fill the heating system by slowly opening the fill valve Observe the pressur...

Page 7: ...ity B Shut off fuel supply by closing main valve B Isolate the heating system from the mains power supply by means of the heating system emergency stop switch or the appropriate electrical fuse circuit breaker Operating pressure Design operating pressure optimum setting _____________ psi bar Maximum heating system operating pressure standard 30 psi 2 bar _____________ psi bar Table 1 Operating pre...

Page 8: ...sed entered by heating system installer CAUTION Risk of boiler damage from contaminated combustion air B Keep the combustion air free of corrosive substances e g halogenated hydrocarbons that contain chlorine or fluorine compounds B Prevent heavy accumulation of dust CAUTION Risk of system damage from water B In the event of severe risk of flooding disconnect the boiler from its power supply and s...

Page 9: ...Always follow the burner manufacturer s instructions Too many resets can damage the bur ner s ignition transformer B Do not press the reset button more than three times in a row If the fault does not reset after the third attempt localize and rectify the fault with the help of the burner documentation Notify a service contractor if necessary CAUTION Risk of system damage from freezing The heating ...

Page 10: ...10 6 720 648 163 2011 05 Notes ...

Page 11: ... 11 6 720 648 163 2011 05 Notes ...

Page 12: ...552 1100 Fax 603 584 1681 www bosch climate us U S A Products manufactured by Bosch Thermotechnik GmbH Junkersstrasse 20 24 D 73249 Wernau www bosch thermotechnology com Bosch Thermotechnology Corp reserves the right to make changes without notice due to continuing engineering and technological advances ...

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