•
Connect an additional earth (ground) cable to the M6 RF earth (ground) stud. You must use a
suitable low-impedance cable (for example, use braided cable).
3.17 Refit the enclosure panels
1. Refer to Figure 3-3. Refit the right hand and left hand side panels use the following method
for each side panel.
•
Hold the panel (4) and fit it to the side of the iH system, so that the pins (5) on the frame
engage in the holes at the bottom of the panel (4).
•
Lower the panel fully down, then swing the top of the panel into place against the frame.
•
Use a posidrive screwdriver to secure the two or four M5 screws (3).
3.18 Connect the cooling-water hoses
WARNING
Do not leave the cooling-water supply turned on until after you complete the
electrical installation of the pump. If you do, condensation may form inside
the motor terminal-box and there may be a risk of electric shock.
CAUTION
Drain the cooling-water from the iH system, if you will transport or store it in conditions
where the cooling-water could freeze. If you do not, cooling-water may freeze in the
iH system and damage the pump(s) and/or the cooling-water pipelines.
Notes: For optimum water-cooling, ensure that your cooling-water supply and return hoses are free of
restrictions which would reduce the cooling-water flow rate. If you need to connect more than one
iH system to the water supply, you must connect them in parallel and not in series.
For minimum water consumption, regulate the cooling-water flow to the iH system.
The positions of the cooling-water connectors are shown in Figure 1-5. Connect the
cooling-water supply as follows:
1. Use
3
/
8
inch BSP male pipe fittings (which you must supply) to fit the female quick-release
connector to the cooling-water supply hose and to fit the male quick-release connector to the
cooling-water return hose.
2. Refer to Figure 1-5. Remove the dust-caps from the cooling-water inlet and outlet (2, 3).
3. Connect your water return hose to the cooling-water outlet (2) and connect your water
supply hose to the cooling-water inlet (3).
4. Turn on the cooling-water supply.
3-28 iH Dry Pumping Systems
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