Appliance details
2.2Specifications (Technical data)
Approved in US/Canada
Capacity
Maximum flow rate: 7.15 GPM (27 l/min) at a 45°F (25°C) rise.
Maximum output
160,500 Btu/h (47.0 kW)
Maximum input
199,000 Btu/h (58.3 kW)
Efficiency in %
Thermal efficiency > 82%
Min. Input
19,900 Btu/h (5.8 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 operation (with a high hot water flow rate)*
•Propane: 8” - 13” water column
•Natural Gas: 3.5” - 10.5” water column.
*To measure gas pressure, see Measuring Gas Pressure, chapter 3.12.
Water
•Hot water connection (inches) - ¾”
•Cold water connection (inches) - ¾”
•Water valve material: Polymer (PPS) (Polypropylene Sulfid)
•Minimum water flow: 0.65 gallon/minute (2,5 l/m).
Note: Activation varies with inlet water temperatures from 0.65 - 1.6 gallon/minute.
•Minimum recommended water pressure: 30 PSI (2.07 bar)
•Minimum recommended well pressure: 40 PSI (2.75 bar), see chapter 3.9.
•Connections:
– Bottom of heater
Combustion
•NOx ≤ 40 Ng/J (Nanograms of NOx (calculated as NO2) per Joule of heat output).
•CO ≤ 250 ppm (measured)
•CO2 level set from factory, see chapter 6.4.
Dimensions
•Depth (in): 11¼” (286 mm)
•Width (in): 17 7/8” (452 mm)
•Height (in): 30½” (775 mm)
•Weight: 67 pounds (30,5 kg).
Gas types
Natural Gas. LP Gas.
Converting the gas type can only be done by a certified gas technician with a calibrated CO2 analyzer.
Call Bosch Water Heating through Bosch thermotechnology corp. for conversion instructions.
Voltage
120 V AC (60 Hz) nominal
Amperage
Idle - 40 mA
Operation - ≤ 2.5 A
Noise
45 - 65 db (A)
Safety devices
•Flame failure device (ionization flame rod sensor)
•Pressure relief valve (supplied with heater)
•Over heat prevention (temperature limiter)
•Inlet temperature sensor
•Outlet temperature sensor
•Backflow temperature sensor.
Water protection
IP X4 (protection against water drops)
If appliance is installed at elevations above
i2000ft, refer to section 3.3.6 Fan speed adjustment.
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