i2o PRV Installation And Commissioning Manual Download

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i2O

www.i2owater.com

info@i2owater.com

+44 (0) 2380 111 420

Page 9

Important note to consider:

When in Service Mode, the controller does not make any automatic adjustment of the

APV, regardless of any configuration it has received from oNet. As soon as you exit

Service Mode, the APV starts to control automatically from the starting point configured

in the calibration process.

For this reason, it is absolutely vital that the controller is left in service mode when the

shut-off valves on the PRV are opened, to ensure that the APV is still at the same

starting point when it starts to hydraulically control the pressure.

It is only after the pressure has stabilised and the PRV is controlled hydraulically by the

APV that the user should exit Service Mode and allow automatic control to start moving

the APV

Summary of Contents for PRV

Page 1: ... Science Park Southampton SO16 7QJ United Kingdom www i2owater com info i2owater com 44 0 2380 111 420 Company registration no 98345 6784 PRV Control System Installation and Commissioning Manual Author Imran Jones Issue 1 1 Date 19 Apr 2017 ...

Page 3: ...420 Page 2 i Hardware installation procedure Install Control Logger and APV mounting brackets Install APV mounting plate Mount Control Logger and APV to brackets in the orientation shown Note APV should be located just above PRV to allow self bleeding air ...

Page 4: ... 3 Assemble hose connection hardware to the PRV fitting the T piece downstream and Restriction Block upstream Select and fit the appropriate size of fixed orifice to the Restriction Block based on the size of the PRV Prepare quick release connectors on 6mm hoses ...

Page 5: ...Upstream pressure P1 GREEN Control Space Pressure Optional P3 BLUE Downstream pressure P2 A Flow B APV PILOT C USB port to connect the Laptop If required splice flow meter cable in accordance with supplied instructions Assemble Serto couplings onto 12mm hoses A Compression nut B Sleeve C Stainless steel insert D Male adapter ...

Page 6: ...hown below 12mm black hoses should Be as short as possible Have a long smooth radius Have no kinks Be routed appropriately to reduce strain Important Note that the APV shaft moves in and out approximately 10mm in normal operation Ensure no rubbing or restriction to the black hose and do not clamp tubing ...

Page 8: ... 18m minimum downstream pressure Rotating the APV end cap by 1 slot is equivalent to 1m water pressure in both directions Use a C spanner to adjust the APV where required Always ensure the APV is depressurized hoses disconnected when performing calibrations When end cap contact is made with the internal spring the equivalent pressure is approximately 10m ...