10
11
EN
EN
2. CONNECTING GAS PRESSURE REDUCER
1. Connect a food-safe hose to the existing ¼” metal push-fit connection on the gas pressure reducer.
If necessary, replace the ¼” metal push-fit connector that has already been screwed in with the
5/16” metal push-fit connector. Depending on the available installation space, the appropriate elbow
connector (2 or 3) can be used to attach the hose to the CO
2
outlet of the pressure reducer at 90°
or to connect it at 90° to the inlet of the water dispenser system.
2. Connect the food-safe hose at the CO
2
inlet of the water dispenser system.
3. Fix the appropriate circlips (4 or 5) at every connection.
4. Open shut-off valve (A).
5. Check system for leaks.
3. CALCULATE CO
2
GAS CONCENTRATION
Caution!
For safety reasons, in case of a gas leak, the CO₂ concentration in the room must not exceed 3%.
During the installation of the CO
2
gas cylinder, it is recommended that the maximum CO
2
cylinder
content should be determined beforehand in accordance with the available room size or available
room volume.
The CO
2
gas concentration is calculated as follows:
The following overview shows the required room volumes for common CO
2
cylinder sizes
(calculated on the basis of a CO
2
gas density of 2 kg/m³):
Gas volume or cylinder content (m³)
Room volume (m³)
CO
2
gas concentration in the room (vol. %) =
CO
2
cylinder
content
(kg)
Content
(m
3
)
Content
(l)
Room volume required for
safety reasons (m³)
Room surface area required for
safety reasons (m²)
(for a room height of 2.5 m)
2
1
1,000
35
13.5
3
1.5
1,500
51
14.4
5
2.5
2,500
85
34
6
3
3,000
105
41
10
5
5,000
170
68
If the calculated gas concentration of 3% is exceeded, the following measures are possible:
» Use of a smaller CO
2
gas cylinder
» Increase in the size of the room (e. g. by removing doors)
» Installation of a CO
2
gas warning device in accordance with DIN 6653–2
» Installation of technical ventilation
