Ridder HortiJetPro, Installation And User Manual, Page: 39 / 54

No. Name
1 Shut-off valve.
2 Navaton pilot valve.
3 Plastic rotary knob to control shut-off valve.
4 Metal bolt to operate the navaton pilot.
The shut-off valve has a plastic knob that indicates which way you need to turn it to
open the valve or close it.
The navaton pilot valve is operated using the metal bolt. Turn the head clockwise to
increase the pressure setting; turn the head counter-clockwise to decrease the
pressure setting.
PRV2
The PRV in the compensation channel is of a different type; it is a direct
pressure-reducing valve and does not have a separate shut-off valve. This PRV
uses only the navaton pilot valve with a metal bolt. For this PRV too, turn the
head clockwise to increase the pressure setting. Turn the head counter-
clockwise to reduce the pressure setting.
5.5.2 Step-by-step instructions for pressurizing the HortiJet
To pressurize the HortiJet Pro, complete the following steps:
1. Turn the manual valves on the inlet and outlet of the HortiJet Pro to open them.
2. Open the shut-off valves on PRV1 and the PSV. Use the plastic rotary knob to do
this.
3. Set the HortiJet pump to manual operation (see section "Operating the HortiJet
pump" on page 42).
4. Check whether the irrigation pump starts to work. Also see section "Connecting
electrical components" on page 27.
5. Adjust the valves by using the table below. Also see section "Pressure control
valves" on page 37.
6. Remedy any leaky couplings or other leaks.
The HortiJet Pro will bleed itself automatically through the air release valve; it
is normal for some water to drip from this valve.
Adjusting the valves
The table below shows how the PRVs and the PSV should be set:
Pressure in the main
pipe PRV1 pressure
(bars) PRV2 pressure
(bars) PSV pressure
(bars)
Capacity per channel 600 L/h
3.0 - 4.0 bars 3.0 1.0 6.0
4.1 - 6.0 bars 4.0 1.5 6.5
HortiJet Pro
39