Buderus SF300.5, Инструкция по установке и обслуживанию

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4 Transport
SF300/5, SF400/5 – 6 720 800 028 (2012/05)
11
4 Transport
B
When handling, prevent DHW cylinders from falling.
B
Move packed DHW cylinder with a sack trolley and strap (
Æ
Fig. 3,
page 45).
-or-
B
Move unpacked DHW cylinder with a transport net; during handling,
protect connections against possible damage.
5 Installation
The solar storage tank is delivered fully assembled.
B
Check that the DHW cylinder is complete and undamaged.
5.1 Siting
5.1.1 Requirements for the installation site
B
Observe the minimal room height for the installation of the LAP
(
Æ
Tab. 4, page 10).
B
If the minimum room height is not available for the installation of the
LAP, then the LAP must be installed before setting up the DHW
cylinder.
B
If an immersion pipe set is to be installed as well, the LAP must be
shortened accordingly.
B
Site the DHW cylinder on a plinth if there is a risk that water may
collect at the installation site.
B
Site the DHW cylinder in dry internal areas that are free from the risk
of frost.
B
Observe the minimum room height (
Æ
Tab. 4, page 10) and the
minimum wall clearances in the installation room (
Æ
Fig. 1, page 44
and Fig. 5, page 46).
5.1.2 Positioning the DHW tank
B
Stand the DHW cylinder upright and level it (
Æ
Fig. 5 to Fig. 7,
page 46).
B
Remove protective caps (
Æ
Fig. 8, page 46).
B
Apply Teflon tape or Teflon string (
Æ
Fig. 9, page 47).
5.2 Hydraulic connection
5.2.1 Connecting the DHW cylinder on the water side
System example with all recommended valves and stopcocks
(
Æ
Fig. 10, page 47).
B
Use installation material which is heat resistant to 95 °C (203 °F).
B
Never use open vented expansion vessels.
B
Use metal connection fittings in water heating systems with plastic
lines.
B
Size the drain line in accordance with the connection.
B
To facilitate blow-down, never install bends in the drain line.
B
Keep primary lines as short as possible and insulate them.
B
If using a non-return valve in the cold water supply: Install a safety
valve between the non-return valve and the cold water inlet.
B
Install a pressure reducer if the static system pressure is in excess of
5 bar.
B
Seal all superfluous connections.
5.2.2 Installing a safety valve (on-site)
B
Install a type-tested safety valve that is approved for potable water
(
≥
DN 20) in the cold water supply (
Æ
Fig. 10, page 47).
B
Observe the safety valve installation instructions.
B
Terminate the discharge pipe where it will be easily visible in the frost-
protected area via a dewatering point.
–
The discharge pipe must be at least equal to the outlet cross-
section of the safety valve.
–
The discharge pipe must be able to discharge at least the flow rate
that is feasible at the cold water inlet (
Æ
Tab. 4, page 10).
B
Attach a notice with the following text to the safety valve: "Never close
the discharge pipe. During heating, water may be discharged for
operational reasons."
If the static system pressure exceeds 80 % of the safety valve response
pressure:
B
Install a pressure reducer upstream (
Æ
Fig. 10, page 47).
5.3 Fitting temperature sensors
To measure and monitor the water temperature, fit the temperature
sensors at the test points [4] and [5] (
Æ
Fig. 2, page 45).
B
Fit the temperature sensor (
Æ
Fig. 11, page 48). Ensure that the
sensor area has contact with the sensor pocket area for the sensor‘s
full length.
5.4 Immersion heater (accessory)
B
Install the immersion heater in accordance with the separate
installation instructions.
B
When installation of the tank is complete, inspect the ground
conductor (including metal connection fittings).
6 Commissioning
B
Commission all assemblies and accessories as specified in the
manufacturer's technical documentation.
NOTICE: System damage through inadequate load
bearing capacity of the supporting surface or unsuitable
substrate.
B
Ensure that the installation area is level and offers
sufficient load-bearing capacity.
WARNING: Risk of fire from soldering and welding!
B
Take appropriate safety measures when soldering
and welding as the thermal insulation is flammable.
For example, cover up the thermal insulation.
B
Check cylinder casing after completion for perfect
condition.
WARNING: Risk to health through contaminated water!
Work carried out without due care for cleanliness
contaminates the potable water.
B
Install and equip the DHW cylinder hygienically in
accordance with national standards and guidelines.
Mains pressure
(static pressure)
Safety valve
response
pressure Pressure reducer
in the EU outside the EU
< 4.8 bar
≥
6 bar Not required
5 bar 6 bar max. 4.8 bar
5 bar
≥
8 bar Not required
6 bar
≥
8 bar max. 5.0 bar Not required
7.8 bar 10 bar max. 5.0 bar Not required
Table 6 Selection of a suitable pressure reducer
NOTICE: Risk of system damage through excessive
pressure!
Excessive pressure can result in tension cracks in the
enamel coating.
B
Never close the blow-off line of the safety relief valve.