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Index, 1warning – Bosch 250 SXO NG User Manual

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2

Index

Index

1

Warning

2

2

Appliance details

4

2.1

Features

4

2.2

250 SXO Specifications (Technical data)

4

2.3

Dimensions and Minimum installation clearances

6

2.4

General rules to follow for safe operation

7

2.5

Proper location for installing your heater

7

2.6

Heater Placement and Clearances

8

2.7

Mounting installation

8

2.8

Gas piping & connections

10

2.9

Measuring gas pressure

12

2.9.1 Connecting Manometer

12

2.9.2 Static Pressure Test

12

2.9.3 Operating Pressure Test

12

2.10 Water connections

13

2.11 Electrical connections

14

2.12 Operating instructions

14

2.13 For your safety read before operating your water

heater

15

2.14 Lighting and operating instructions

15

3

Operation instructions

16

3.1

Power

16

3.2

Temperature selection

16

3.3

Use of remote control accessory

18

3.4

Operation

18

3.5

Reset button

18

3.6

Program button

18

3.7

Locked condition

18

4

Maintenance and service

19

5

Troubleshooting

19

6

Electrical diagram

22

7

250 SXO Functional scheme

23

8

Interior components diagram and parts list 24

8.1

Interior components

24

8.2

Components diagram

25

8.3

Parts list

26

9

Special adjustment for measuring and adjusting
CO2 levels

27

10

Protecting the environment

29

11

Twelve Year Limited Warranty

30

1

Warning

Featuring
Electronic Ignition and Power Venting.

For your safety
Do not store or use gasoline or other flammable,
combustible or corrosive vapors and liquids in the
vicinity of this or any other appliance.

Warning: If the information in this
manual is not followed exactly, a fire or
explosion may result causing property
damage, personal injury or death.

Warning:

Improper

installation,

adjustment, alteration, service or
maintenance can cause injury or
property damage. Refer to this manual.
For assistance or additional information
consult a qualified installer, service
agency or the gas supplier.
Upon completion of the installation,
these instructions should be handed to
the user of the appliance for future
reference.

Warning: Carefully plan where you
install the heater. If a gas appliance is
not installed correctly, fatal accidents
can result from lack of air, carbon
monoxide poisoning or fire.

Warning: Place the heater in a location
where water leaks will do NO DAMAGE
to adjacent areas or floors.

Warning: Field wiring connections and
electrical grounding must comply with
local codes, or in the absence of local
codes, with the latest edition of the
National Electric Code, ANSI/NFPA 70,
or in Canada, all electrical wiring must
comply with the local codes and the
Canadian Electrical Code, CSA C22.1
Part 1.

Warning: Shock hazard line voltage is
present. Before servicing the water
heater, turn off the electrical power to
the water heater at the main disconnect
or circuit breaker. Failure to do so could
result in severe personal injury or death.