afriso WAF 04 R-G3/4 Notice Technique page 39

8.1.2 Checking the pressure reducer
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Maintenance
1. Close the valve at the out-
let side (1). If the pressure
P
2
1
pressure reducer oper-
ates properly.
2. Close the valve at the out-
let side (2).
3. Otherwise, the pressure
reducer must be replaced
(see chapter "Replacing
the pressure reducer".
2
does not change, the
WAF 04 R
EN
17