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E Specifications (Technical Data) - Bosch AQUA STAR 2400E LP Installation And Operating Instructions Manual

Temperature modulated with electronic ignition suitable for heating potable water only
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Appliance details
2
Appliance details
2.1
Features
Parts
• Touch pad interface control
• High power pre-mix compact burner with low NOx
emissions
• Modulating gas valve with constant gas to air ratio
control
• Modulating water valve for improved comfort and
temperature control.
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 one-piece cover.
Features
• LCD Display
• On/Off and temperature control switches
• Reset button
• Program key (selectable temperature)
• Failure codes for easy diagnostics and repair
• Diagnostic mode for troubleshooting/informational
purposes
• Cascading function.
Accessories
• Optional wireless remote control accessory to
remotely set temperature (Part # TSTAT2) .
• Tankless Link: Allows two 2400 E heaters to be
linked together for double the hot water volume (Part
# TLINK) .
• Horizontal vent termination kit (Part # 4TWHVK3S) .
BOSCH is constantly improving its
i
products, therefore specifications are
subject to change without prior notice.
2.2
2400 E Specifications (Technical
data)
Approved in US/Canada
4
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" NPT
Inlet gas pressure under operation (with a high hot
water flow rate)*
• Propane: 11" - 14" water column
• Natural Gas: 5" - 14" water column.
* To measure gas pressure, see Measuring gas
pressure, chapter 3.8.
Venting
A condensate trap is integrated into the exhaust flue
gas collar of the heater, the supplied condensate drain
tube MUST be installed to it for proper removal of
condensate from the trap. Additional condensate traps
and drains may be necessary; see chapter 3.6 for
Venting.
Water
• Hot water connection (inches) - ¾" NPT
• Cold water connection (inches) - ¾" NPT
• Water valve material: Polymer (PPS) (Polypropylene
Sulfid)
• Minimum water flow for activation: 0.8 gallon/minute
(3 l/m)
• Minimum recommended water pressure: 30 PSI
(2.07 bar)
• Connections:
– Bottom of heater
Combustion
• NOx ≤ 55 ppm
• CO ≤ 300 ppm
6 720 608 263

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