Bosch C 950 - Specifications (Technical Data)

Appliance details | 7
6 720 805 440 (2014/11)Greentherm
3.2 Specifications (Technical data)
Approved in US/Canada
Safety devices
• Flame failure device (ionization flame rod sensor)
• Overheat prevention (temperature limiter)
• Inlet temperature sensor
• Outlet temperature sensor
• Back flow temperature sensor
• Exhaust gas temperature sensor
Technical characteristics Units C950 ES C1050 ES
Capacity
Maximum flow rate at a 25 °F (13.9 °C) rise GPM (l/min) 13.1 (49.7) 14.9 (56.5)
Maximum flow rate at a 35 °F (19.4 °C) rise GPM (l/min) 9.4 (35.5) 10.7 (40.4)
Maximum flow rate at a 45 °F (25 °C) rise GPM (l/min) 7.3 (27.6) 8.3 (31.4)
Maximum flow rate at a 55 °F (30.6 °C) rise GPM (l/min) 6.0 (22.6) 6.8 (25.7)
Maximum flow rate at a 75 °F (41.7 °C) rise GPM (l/min) 4.4 (16.5) 5.0 (18.8)
Maximum flow rate at a 90 °F (50 °C) rise GPM (l/min) 3.6 (13.8) 4.2 (15.7)
Maximum output BTU/hr (kW) 160,500 (47) 184,500 (54)
Maximum input BTU/hr (kW) 175,000 (51.2) 199,000 (58.3)
Thermal efficiency (Efficiency in %) % > 94%
Minimum Input BTU/hr (kW) 19,900 (5.8)
Temperature Control
Selection range °F ( °C) 100 - 140 (38 - 60)
Default temperature °F ( °C) 122 (50)
Stability °F ( °C)  2 ( 1)
Gas Requirement
Gas connection inches ¾"
Peak load inlet gas pressure
1)
1) To measure Gas Pressure, see Measuring Gas Pressure, chapter 4.14, page 36.
Propane water column 8” - 13”
Natural Gas water column 3.5” - 10.5”
Water
Hot water connection inches ¾"
Cold water connection inches ¾"
Minimum water flow
2)
2) Activation varies with inlet water temperatures from 0.5 - 1.6 gallon/minute (1.9 - 6.1 l/m).
GPM (l/min) 0.5 (1.9)
Minimum recommended water pressure PSI (bar) 30 (2.07)
Minimum well pressure PSI 40
Water valve material Polymer (PPS) (Polypropylene Sulfide)
Connections: Bottom of heater
Combustion
CO level ppm  290 (measured)
CO
2
level (set from factory) % see table 48
Dimensions
Depth inches (mm) 11 ¼ (286)
Width inches (mm) 17
7
/
8
(452)
Height inches (mm) 30½ (775)
Weight pounds (kg) 74 (33.5)
Nominal V AC 120
Frequency Hz 60
Amperage
Idle mA 40
Operation A  2.5
Noise db (A) 45 - 65
Water protection
3)
3) Protection against water drops.
IP X4D
Table 3
If appliance is installed at elevations above 2000ft, refer
to chapter 4.3.8 Fan speed adjustment.