10
FIGURE 04: SCHEMATIC DISCHARGE PIPE ARRANGEMENT
3.4: ELECTRICAL REQUIREMENTS
WARNING: This appliance must be earthed. It is suitable for a.c. supply
only. Disconnect the electrical supply before removing the terminal
cover. Installation must be in accordance with the current I.E.E. Wiring
Regulations.
3.4.1 The unit is supplied fitted with a 1.0m 3 core 1.5mm
2
flexible
cable. The electicity supply should be fused 13 Amp for a 3kW model
and 5 Amp for a 1kW model and be via a double pole isolating switch
with a contact separation of at least 3mm in both poles. Refer to the
schematic wiring diagram below.
3.4.2 The wires are colour coded as follows:
Green and Yellow EARTH
Brown
LIVE (L)
Blue
NEUTRAL (N)
Fixed grating
Discharge below
(Building Regulation
G3 section 3.9d gives
alternative points
of discharge)
Trapped
gully
Discharge pipe (D2) from tundish,
with continuous fall. See Building
Regulation G3 section 3.9d i-iv,
Table 4 and worked example
300mm
minimum
500mm maximum
Metal discharge pipe (D1) from
Temperature relief valve to tundish
Tundish
Safety device
(e.g. Temperature
relief valve)