Redring EXPRESSIONS 550S Installation And User Manual page 9

c) ELECTRICAL
WARNING: THIS SHOWER MUST BE EARTHED.
The electrical installation must be in accordance with the current BS.7671 (IEE Wiring Regulations)
and "Part P" of the Building Regulations and/or local regulations
1. The SHOWER is designed for a single phase AC electrical supply.
Please check the rating plate on the unit to see what details apply to your unit.
AS A GUIDE ONLY
Rating
7.2 / 6.6kW 240 / 230V
8.5 / 7.8kW 240 / 230V
9.5 / 8.7kW 240 / 230V
10.5 / 9.6kW 240 / 230V
Remember to upgrade the cable if it runs in thermal insulation in a loft, or for a longer distance.
2. A means for disconnection in all poles must be incorporated in the fixed wiring in accordance
with the wiring rules.
We recommend a ceiling switch mounted in a convenient position.
3. Cut back cable as in diagram 7. Connect cable to terminal block making sure that all the
retaining screws are VERY TIGHT and that no cable insulation is trapped under the screws.
WARNING: FAILURE TO COMPLY WITH THESE INSTRUCTIONS COULD RESULT IN
FAILURE OF THE TERMINAL BLOCK
4. Re-Fit the corner section back into the backplate.
(* Only applies if external earth impedance is less than 0.35 Ohms)
Cable Sizes
4.0mm²
6.0mm²
6.0mm²
10.0mm²
6.0mm²
10.0mm²
6.0mm²
10.0mm²
6.0mm²
10.0mm²
6.0mm²
10.0mm²
10.0mm²
Fuse / MCB
32A Type B MCB
40A Type B MCB
40A Type B MCB
45A BS.1361 fuse
40A Type B MCB
45A BS.1361 fuse
45A BS.1361 fuse
9
Cable Length
21m Max.
35m Max.
27m Max.
45m Max.
27m Max.
45m Max.
12m Max.*
21m Max.*
27m Max.
45m Max.
12m Max.*
21m Max.*
12m Max.*