Appliance details
2Appliance details
2.1Features
Parts
Touch Pad interface control
High power
Modulating Gas Valve with constant gas: air ratio control
Modulating water valve for improved comfort and temperature control
Freeze protection. Safety
Flame sensor (ionization) rod Overheat sensor Temperature limiter
Fan speed monitoring.
High Quality Materials for Long Working Life Copper heat exchanger
High efficiency Ceramat Burner
Compact space saver: mounts on a wall with a supplied bracket.
Easily removable
Electronic Ignition LCD Display
On/Off and Temperature control switches Reset button
Program Key (Selectable temperature default) Failure codes for easy diagnostic and repair.
Accessories
Optional wireless remote control accessory to operate with the appliance.
BOSCH is constantly improving its
iproducts, therefore specifications are subject to change without prior notice.
2.2250 SXO Specifications (Technical data)
Approved in US/Canada
Capacity
Maximum flow rate: 6.35 GPM (24 l/min) at a 45°F (25°C) rise.
Maximum output
142,968 Btu/h (41.8 kW)
Maximum input 175,000 Btu/h (51.2 kW)
Efficiency in %
Recovery efficiency 86.5%
Min. Output
31,131 Btu/h (9,1 kW)
Temperature Control
Selection range: 100°F (38°C) - 140°F (60°C)
Default temperature: 122°F (50°C)
Stability: +/- 2°F (+/- 1°C)
Gas Requirement
Gas connection (inches) - ¾”
Inlet gas pressure under maximum operation* Propane: 11” - 14” water column Natural Gas: 5” - 14” water column.
*To measure Gas Pressure, see Measuring Gas Pressure, chapter 2.9.
Water
Hot water connection (inches) - ¾” Cold water connection (inches) - ¾”
Water valve material: Polymer (PPS) (Polypropylene Sulfid)
Minimum water flow: 0.8 gallon/minute (3 l/m)
Minimum recommended water pressure: 30 PSI (2.07 bar)
Connections:
– Bottom of heater
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