Water Characteristics; Installation Checklist - Bosch Compress 3000 DW FO Installation Instructions Manual

▶ Open the purge screw of the circulation pump and leave it
opened until the water leaks uniformly without visible air
bubbles.
Fig. 14 Circulation pump purge screw
▶ Close the circulation pump purge screw.
▶ Wait for about 5 minutes until „Purg" mode goes off.
During the 5min the Purg function lasts,
open the purge valve for a few seconds
several times. This will release some air
excess from the water loop.
▶ Rotate circulation pump speed selector to position „I".
Filling procedure is now completed.
If, after a few minutes of operation (up to 20-30 minutes),
display shows „E09",you should:
▶ Reset the appliance ( page 32, paragraph „Resetting the
system").
▶ Rotate circulation pump speed selector to position „III".
▶ Activate „Purg" function ( page 31, section 5.6.6).
▶ Reopen the purge screw of the circulation pump and leave
it opened until the water leaks uniformly without visible air
bubbles.
▶ Close the circulation pump purge screw.
▶ Reopen the purge valve for a few seconds several times
during the "Purg" procedure to ensure the complete purge
of the system.
▶ After "Purg" function ends, rotate the circulation pump
speed selector to position „I".

4.8.1 Water characteristics

Usage of water with unsuitable characteristics can result in
shortened product life.
Compress 3000 DW FO
6720801244-19.1V Fig. 15
Please note that the Langelier saturation Index depends on the
water temperature and the above information considers two
extremes: 10 °C and 70 °C.
While corrosion is higher at low water temperature, scaling is
more important at higher water temperature.
In case of water hardness above 600 mg/l, the Langelier
saturation index must be determined to evaluate the necessity
for water treatment.
Please require help from your technical assistance.
Table 3
4.9
1. Tank location
• Is the room size less than 3 m x 3 m x 2,5 m (22,5 m
If yes, louvered door or similar ventilation is needed.
• Back of unit away from wall by 150 mm.
• Front of unit is free and clear.
• Is the water heater level? If not, adjust the adjustable feet,
or add shims under the base of the unit.
• Are fixing straps (if required) in place?
2. Plumbing connections
• No leaks after filling the tank with water, either when water
is flowing or is stationary.
Installation instructions | 21
Water treatment vs water characteristics
Water conductivity for sacrificial anodes
130 μS/cm - 1500 μS/cm
Water conductivity
Enamelled tanks must not be used with
completely desalted, distilled or de-ionised
potable water.

Installation checklist

3
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6 720 801 244 (2013/08)