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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.