Bosch ZWB 42-3 A NG User Manual

Regulations
23
Greenstar – 6721822579 (2021/01)
Table 7 Technical data ZWB42-3A...
3.13 Condensate composition
The condensate volume and ingredients may change with regionally and
seasonally varying gas quality and air quality. Typically the following
ingredients and concentrations can be expected:
Table 8 Typical condensate composition
4Regulations
Observe all rules, regulations, standards and guidelines applicable to the
installation and operation of this appliance in your country.
Valves external to the boiler must be fitted with T-handles and
condensate piping must be installed in accordance with the State
Plumbing Code.
4.1 Compliance with standards and regulations
The installation must conform to the requirements of the authority
having jurisdiction or, in the absence of such requirements, to the latest
edition of the National Fuel Gas Code, ANSI Z223.1./NFPA 54. In
Canada, installation must be in accordance with the requirements of
CAN/CSA B149.1, Natural Gas and Propane Installation Code.
This wall-mounted condensing gas boiler complies in its design and
mode of operation with the American National Standard ANSI Z21.13/
CSA4.9, latest edition for Gas-Fired Low-Pressure Steam and Hot Water
Boilers.
Other confirmed approvals and certifications are indicated by labels on
the boiler.
If so advised by the responsible agency, the installation must satisfy the
requirements of the standard for Controls and Safety Devices for.
Automatically Fired Boilers, ANSI/ASME CSD-1.
Install CO detectors per local regulations. Wall-mounted gas condensing
boilers require yearly maintenance ( Chapter 15, page 65).
4.2 Operating limits of the boiler
The heat exchanger has been designed and certified in accordance with
the ASME Boiler and Pressure Vessel Code, Section IV.
Table 9 Operating limits
The hot water distribution system must comply with all applicable codes
and regulations. When replacing an existing boiler, it is important to
check the condition of the entire hot water distribution system to ensure
safe operation.
Common practice calls for inspecting an existing system in its entirety
and bringing it up to code. All pipework should be properly cleaned and
flushed.
Sound pressure level dB(A) ≤ 45 ≤ 45
Max. supply temperature °F ( °C) 187 (86) 187 (86)
Max. permissible operating pressure (P
MS
) heating psi (bar) 30 (2.07) 30 (2.07)
Permissible ambient temperature °F ( °C) 32 - 122 (0 - 50) 32 - 122 (0 - 50)
Nominal water capacity (heating) gal (l) 0.925 (3.5) 0.925 (3.5)
Weight (without packaging) lbs. (kg) 110.2 (50) 110.2 (50)
Dimensions, W x H x D inch
(mm)
17-21/64" × 33-15/32"13-57/64"
(440 × 850 × 353)
ZWB 42-3 A...
Input/Output at elevation 0 - 2000 feet (0 - 610 m) Unit NG LPG (propane)
Substance Value in ppm (mg/l)
Ammonium 1.2
Lead ≤0.01
Cadmium ≤ 0.001
Chrome ≤0.005
Halogenated hydrocarbons ≤ 0.002
Hydrocarbons 0.015
Copper 0.028
Nickel ≤0.1
Mercury ≤ 0.0001
Sulfate 1
Zinc ≤ 0.015
Tin ≤0.01
Vanadium ≤ 0.001
pH-value 4.8
Maximum boiler temperature 187 °F (86 °C)
Maximum operating pressure 30 psi (2.07 bar)

Bosch ZWB 42-3 A NG Specifications

General

Brand	Bosch
Model	ZWB 42-3 A NG
Category	Boiler
Language	English