Buderus 7735501684, Installation And Maintenance Instructions Manual

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5 Installation
SF500.5... | SF750.5... | SF1000.5... – 6 720 821 497 (2017/05) 38
5 Installation
▶ Check that the DHW cylinder is complete and undamaged.
5.1 Installation location
If there is a danger that water may collect on the floor of the installation
site:
▶ Place DHW cylinder on a plinth.
▶ Position the DHW cylinder in dry internal areas that are free from the
risk of frost.
▶ Observe the minimum room height (

tab. 10, page 66) and the
minimum wall clearances in the installation location
(

Fig. 4, page 67).
5.2 Positioning the DHW cylinder, fitting the thermal
insulation
500 litre cylinder (

Fig. 5ff, page 68)
▶ Remove packaging.
▶ Remove casing lid and top insulation.
▶ Remove thermal insulation (ErP “B”) or foil jacket (ErP “C”) and store
provisionally.
▶ Unscrew the cylinder from the pallet.
▶ Optional: fit the adjustable feet (accessory).
▶ Position and align the cylinder.
▶ Fitting the thermal insulation
– ErP “B”: establish hydraulic connection, fit separate thermal
insulation. Close with Velcro fastener.
– ErP “C”: fit foil jacket. Close the zipper.
▶ Place the top insulation and casing lid on.
▶ Attach the front hand-hole cover.
▶ Remove the cap.
▶ Attach Teflon tape or thread.
750/1000 litre cylinder (

Fig. 5ff, page 68)
▶ Remove packaging.
▶ Provisionally store bag with accessories and floor insulation panel.
▶ Remove casing lid and top insulation.
▶ Provisionally store thermal insulation:
– ErP “B”: separately packaged polystyrene jacket.
– ErP “C”: remove foil jacket.
▶ Remove fixing straps.
▶ Pull off the PU rigid foam halves.
▶ Unscrew cylinder from the pallet.
▶ Lift the cylinder off the pallet.
▶ Optional: fit the adjustable feet (accessory).
▶ Position and align the cylinder.
▶ Attach floor insulation panel, paying attention to the slots for the feet.
▶ Fitting the thermal insulation
– Fit PU rigid foam half-shells, draw together using a ratchet strap,
tap. Fit fixing straps. Remove ratchet strap.
– ErP “B”: fit fleece strip round the connector pipes and attach
fleece circular blank for the cover and push in firmly. Make a hole
for the connector in the polystyrene jacket by cutting round the
perforation with a cutter knife. Fold down top layer, unroll to the
right. Pay attention to the position of the connector. Close Velcro
fastener
– ErP “C”: fit foil jacket, pull zipper shut
▶ Place the top insulation and casing lid on.
▶ Mount logo.
▶ Attach the front hand-hole cover.
▶ Remove the cap.
▶ Attach Teflon tape or thread.
5.3 Hydraulic connection
5.3.1 Connecting the DHW cylinder on the water side
System example with all recommended valves and stopcocks
(

Fig. 19, page 72).
▶ Use installation material that is temperature-resistant up to 160 °C
(320 °F).
▶ Never use open expansion vessels.
▶ Use metal connection fittings in potable water heating systems with
plastic pipes.
▶ Size the drain line in accordance with the connection.
▶ To facilitate blow-down, never install elbows in the drain pipe.
▶ If using a non-return valve in the pipework to the cold water inlet:
install a pressure relief valve between the non-return valve and the
cold water inlet.
▶ Install a pressure reducer, if the static pressure in the system is
> 5 bar.
▶ Seal all unused connections.
▶ During filling, open the highest positioned tap (

Fig. 21, page 72).
NOTICE: System damage due to inadequate load-
bearing capacity of the installation surface or unsuitable
substrate!
▶ Ensure that the installation surface is level and offers
sufficient load-bearing capacity.
NOTICE: Material damage from a low ambient
temperature.
If the ambient temperature is below 15 °C, the foil jacket
tears while closing the zipper.
▶ Warm the foil jacket (in a warmed-up room) to above
15 °C.
The following applies for the ErP “B” type:
▶ The hydraulic connection can be established before
the thermal insulation is installed.
WARNING: Risk of fire from soldering and welding!
▶ When soldering or welding, apply suitable protective
measures (e.g. cover the thermal insulation), since
the thermal insulation is combustible.
WARNING: Risk to health through contaminated water!
Work carried out without due care for cleanliness
contaminates the potable water.
▶ Install and equip the DHW cylinder hygienically in
accordance with national standards and guidelines.
▶ Only fill DHW cylinders with potable water.