Bosch 250 SXO NG - Manual (Page 5)

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Appliance details
5
Combustion
• NOx
≤ 55 ppm
• CO ≤ 250 ppm.
Dimensions
• Depth (in): 8 ½” (220 mm)
• Width (in): 15 ¾” (400 mm)
• Height (in): 26” (650 mm)
• Weight: 47 pounds (21 kg).
Gas types
Natural Gas.
LP Gas.
CO
2
analyzer is required to convert from one gas type
to another. Please contact CEC for specific
instructions.
Voltage
120 V AC (50/60 Hz)
Amperage
IDLE - 40 mA
Operation -
≤ 2,5 A
Noise
≤ 50 db (A)
Safety devices
• Flame failure device (ionization flame rod sensor)
• Pressure relief valve (supplied with heater)
• Over heat prevention (temperature limiter).
Water resistant
IP X5 (protection against water drops).
UNPACKING THE 250 SXO HEATER
This heater is packed securely.
The box includes:
• Control panel shield
• Pressure relief valve
• Bracket for wall hanging the heater
• Plastic decal shields for covering front cover screws
and control panel, installer should affix these decals
to the front of the unit after installation is complete.
See Fig. 6
• Installation manual
• Product registration card.
Do not lose this manual. Please complete and return
the enclosed product registration card.
Before installing the unit, be certain you have the
correct heater for your type of Gas - Propane or
Natural Gas. Identification labels are found on the
shipping box, and on the rating plate which is located on
the right side panel of the cover.
The 250SXO is not approved or designed for:
• Manufactured (mobile) homes, RV's or boats
• Heating or other recirculating/pumping applications*
• Solar/preheat backup or high temperature booster
use
* This includes domestic hot water circulator pump loop
systems that may previously exist in a home hot water
system. The use of a small electric mini-tank (4-6 gallon
size) should be used for this application; when
designed so the pump will circulate the hot water in the
mini-tank only and through the building's hot water
return loop (timed or thermostatic controlled operation
of the pump is commonly done). The 250SXO should
be plumbed in line before the mini-tank water heater,
contact CEC if further instruction is needed.