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Unpacking The Heater - Bosch 940 ESO Manual

940 eso - natural gas / 940 eso - liquefied petroleum (lp) gas
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8 | Appliance details
Technical characteristics
Weight
Gas types
Natural Gas
LP Gas
Voltage
Nominal
Frequency
Amperage
Idle
Operation
Noise
3)
Water protection
Table 3
1) To measure Gas Pressure, see Measuring Gas Pressure, chapter 8.6, page 23.
2) Activation varies with inlet water temperatures from 0.5 - 1.6 gallon/minute (1.9
- 6.1 l/m).
3) Protection against water drops.
If appliance is installed at elevations above 2000ft, refer
to chapter 10.8.1 Fan speed adjustment.
Safety devices
• Flame failure device (ionization flame rod sensor)
• Overheat prevention (temperature limiter)
• Inlet temperature sensor
• Outlet temperature sensor
• Back flow temperature sensor
3.3

Unpacking the heater

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.
Fig. 2
Rating plate
[A]
Serial number
[B]
Type of gas
6 720 644 956 (2016/05)
Units
940 ESO
pounds (kg)
67 (30.5)
V AC
120
Hz
60
mA
40
 2.5
A
db (A)
45 - 65
IP
X4D
3.3.1
The box includes
• 940 ESO
• Bracket for wall hanging the heater
• Exhaust vent adaptor (with 4 screws and gasket provided)
• Combustion air inlet adaptor (with 3 screws and gasket provided)
• Installation manual (manual can be downloaded at www.bosch-
climate.us)
• Product registration card
Please complete and return the enclosed product registration card.
The 940 ESO is not approved or designed for:
• Manufactured (mobile) homes, boats or any mobile installation.
(Modular homes are acceptable for installation).
• Use above 8000 ft A.S.L. altitude (see page 28).
• Outdoor installation without installation of Outdoor kit (BTOK).
• Applications where inlet water temperature is higher than 140°F
(60°C). A 3-way valve or mixing valve must be installed before
the appliance if inlet water temperature exceeds this limit.
3.3.2
Remove front cover
▶ Loosen the two Phillips head screws located on bottom rear of cover.
Fig. 3
Loosen the two screws
940 ESO

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