Flowserve NRG 111-11 - Manual (Page 15)

15
1
Flange PN 320, DN 50, DIN 2505-1
Flange PN 250, DN 80, DIN 2505-1
2
For the approval of the boiler standpipe with connecting flange the relevant regulations must be
considered.
3
Vent hole Provide vent hole as close to the boiler wall as possible!
4
High water (HW)
5
Electrode rod d = 8 mm
7
Protection tube DN 100
8
Electrode distance
≥
14 mm
9
Low water (LW)
0
Reducer DIN 2616-2, K-88.9 x 3.2 - 42.4 x 2.6 W
Key
Wiring
NRG 111-11
Note that screened four-core cable, e. g. I-Y(St)Y 2 x 2 x 0.8 or LIYCY 4 x 0.5 mm 2 is required for wiring
to the electrode.
Max. cable length 30 m with water conductivity from 0.5 µS/cm.
Max. cable length 15 m with water conductivity from 0.5 µS/cm when used in conjunction with inverter
URN 1 (24 d. c.).
1. Undo screws K and remove housing cover M. Fig. 7
2. Unscrew union nuts of cable entry L.
3. Slacken plug P with 18 mm open-end spanner but do not remove, fig. 8
The electrode terminal box can now be turned through +/– 180 °.
4. Turn electrode terminal box into desired position (+/– 180 °).
5. Tighten plug P slightly.
6. Remove terminal strip N from board.
7. Connect terminal strip according to wiring diagram.
8. Affix terminal strip.
9. Re-attach housing cover M and fix it with screws K.