GL0052-03
– Envireau Mono-Tech Rainwater – Installation & Operation Guidelines
Page 10
Although the system can run from a 13 Amp switched socket outlet, this is not advised. In all instances a
separate RCD
MUST
be in circuit. The system draws approximately 4 amps at 240 volts AC. Whatever cable
is run to the local switch arrangement, the
maximum
cable size to enter the CONTROL UNIT should be
1.5mm
2
flexible TRS. Use a suitable joint box to convert if necessary. Permanently isolate, by removing the
fuse, to this supply until the total installation is complete.
Do not apply power until then
. The next stage is
the locating and fitting of the
DISPLAY unit
.
12)
Refer to the Guide Sheet DIAGRAM C
. The
display unit
is an important part of your system. Choose the
location carefully. The unit is designed to be mounted “flush” using a plaster-depth back box, or “surface”
using a surface back box. The display unit should be located in a visible position, in an area, which is often
occupied. The display unit is wired back to the control unit, using standard “Alarm” cable. This cable should
be four cores at 1 amp per core rating (7/0.2 mm each core. Core colours red, yellow, and black, blue). The
cable should be connected between the terminal block on the back of the DISPLAY unit to the terminal block
marked “DISPLAY” in the control unit. The terminal blocks at both ends are marked R for RED core, Y for
YELLOW core, Bu for BLUE core and Bk for BLACK core. The terminal block is marked DISPLAY and is top
right (facing) on the control unit Printed Circuit Board.
(Note. If you wish to use the PUMP LOCK-OUT MODE or BMS contact on the display unit and you
need to bring the feed from the contact back into the same location as the control unit, use 6 core
cable. The two remaining cores go into the pair of terminals at the back of the display unit. See the
document on NON-STANDARD SYSTEMS for details of the BMS CONNECTIONS and PUMP LOCK-
OUT mode).
The next stage is the wiring in (and installation) of the pump.
13)
Refer to the Guide Sheet DIAGRAM C
.
At this stage, the pump should not be in the tank.
To install the pump you should take great care. It is a
HEAVY item. Be safe. Two persons will make the job much easier. Take the pump to the tank turret. Release
the ties on the mains electrical cable. Uncoil the HOSE. Draw the mains electrical cable through the duct
along with another draw-wire (or rope) to pull through the sensor cable later. When the pump cable is fully in
place, with the waterproof connector accessible (or enough spare cable to reach ground level easily), the
pump can be lowered carefully, on its rope, into the tank
. Do not lower the pump by the electrical cable or
by the hose.
One person should hold on to the pump hose free end and should guide the other person, not
allowing the cable to be trapped by the lowering pump. Once the pump is sitting on the tank bottom, the rope
should be tied off to the turret bracket, just sufficiently taught to keep the pump upright but not enough to
suspend it. The pump hose should now be connected to the protruding thread of the tank connector. Do not
over tighten.
Run the pump electrical cable from the duct to the control unit and wire it in to the terminals marked L, N and
E, designated pump.
