Bosch Stora W 300-5 PK, Installation And Service Instructions For Contractors

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Product information
49 Stora – 6720821526 (2021/06)
H
Notices for the target group
These installation instructions are intended for gas,
plumbing, heating and electrical contractors.
All instructions must be observed. Failure to comply
with instructions may result in material damage and
personal injury, including danger to life.
▶ Read the installation, service and commissioning
instructions (heat source, heating controller,
pumps, etc.) before installation.
▶ Observe the safety instructions and warnings.
▶ Follow national and regional regulations,
technical regulations and guidelines.
▶ Record all work carried out.
H
Handover to the user
When handing over, instruct the user how to operate
the heating system and inform the user about its
operating conditions.
▶ Explain how to operate the heating system and draw
the user's attention to any safety relevant action.
▶ In particular, point out the following:
– Alterations and repairs must only be carried out
by an approved contractor.
– Safe and environmentally compatible operation
requires inspection at least once a year and
responsive cleaning and maintenance.
▶ Point out the possible consequences (personal
injury, including danger to life or material damage)
of non-existent or improper inspection, cleaning
and maintenance.
▶ Point out the dangers of carbon monoxide (CO) and
recommend the use of CO detectors.
▶ Leave the installation instructions and the operating
instructions with the user for safekeeping.
2 Product information
2.1 Intended use
Enamelled DHW cylinders (cylinders) are designed for heating and
storing potable water. Please observe the applicable country-specific
regulations, guidelines and standards for potable water.
Only install the enamelled DHW cylinder (cylinder) in sealed unvented
DHW heating systems.
All other use is considered unsuitable. Any damage that results from
such use is excluded from liability.
Table 2 Requirement for potable water
2.2 Scope of delivery
• Hot water cylinder
• Technical documentation
2.3 Product description
Table 3 Product description (

Fig. 1/ 2, page 65)
2.4 Type plate
Table 4 Type plate
Requirements for
potable water Unit Value
Water hardness ppm CaCO3
grain/US gallon
°dH
°fH
> 36
> 2.1
> 2
> 3.6
pH value - ≥ 6.5... ≤9.5
Conductivity μS/cm ≥130... ≤1500
Pos. Description
1 DHW outlet
2 Cylinder flow
3 Sensor pocket for temperature sensor, heat source
4 DHW circulation connection
5 Cylinder return
6 Solar flow
7 Sensor pocket for temperature sensor, solar
8 Solar return
9 Cold water inlet
10 Lower heat exchanger for solar thermal heating, smooth
enamelled tubing
11 Inspection aperture for maintenance and cleaning at the front
12 Female connection (Rp 1 ½") for installation of an immersion
heater
13 Upper heat exchanger for reheating by wall mounted boiler,
smooth enamelled tubing
14 Storage cylinder, enamelled steel
15 Magnesium anode
16 Casing lid
17 Outer casing
Pos. Description
1 Type
2 Serial number
3 Useful capacity (overall)
4 Standby heat loss
5 Volume heated by immersion heater
6 Year of manufacture
7 Corrosion protection
8 Maximum DHW temperature
9 Maximum heating water flow temperature
10 Maximum solar flow temperature
11 Electrical power cable
12 Continuous output
13 Volumetric flow rate to reach continuous output
14 Volume with 40 °C draw-off temperature heated by immersion
heater
15 Maximum operating pressure on the domestic water side
16 Maximum design pressure (cold water)
17 Maximum operating pressure of heating water
18 Maximum operating pressure, solar side
19 Maximum operating pressure on the domestic water side
(CH only)
20 Maximum test pressure on the domestic water side (CH only)
21 Maximum DHW temperature with immersion heater