Dannobre Posted September 22, 2018 Report Share Posted September 22, 2018 What would be the most efficient way to keep the electric water pump and fans active until the ECT has dropped to a pre-determined level? Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 22, 2018 Report Share Posted September 22, 2018 You will need to wire the ECU as per the "ECU hold power" wiring diagram in the help file. The ECU can then be set to "stay alive" for a pre-set length of time. It will always stay alive for this pre-set time regardless of whether your EWP needs to run or not. The ECU uses very little current so shouldnt drain battery etc. The maximum keep alive time setting is 1310 seconds or about 20minutes. Quote Link to comment Share on other sites More sharing options...
Stevieturbo Posted September 22, 2018 Report Share Posted September 22, 2018 https://www.12voltplanet.co.uk/adjustable-delay-timer-relay-delay-on-or-off-12v-10a.html That will allow an easy run on of either after ecu shutdown, although not specifically to a temperature. Quote Link to comment Share on other sites More sharing options...
Dannobre Posted September 22, 2018 Author Report Share Posted September 22, 2018 2 hours ago, Adamw said: You will need to wire the ECU as per the "ECU hold power" wiring diagram in the help file. The ECU can then be set to "stay alive" for a pre-set length of time. It will always stay alive for this pre-set time regardless of whether your EWP needs to run or not. The ECU uses very little current so shouldnt drain battery etc. The maximum keep alive time setting is 1310 seconds or about 20minutes. Can the EWP then be configured to run until a set temp as long as the ECU is still alive? IE: If it reaches the EWP off temp before the ECU Hold time expires it will go off. Otherwise it will shut everything down at the ECU Hold time? Quote Link to comment Share on other sites More sharing options...
Ducie54 Posted September 23, 2018 Report Share Posted September 23, 2018 5 hours ago, Dannobre said: Can the EWP then be configured to run until a set temp as long as the ECU is still alive? IE: If it reaches the EWP off temp before the ECU Hold time expires it will go off. Otherwise it will shut everything down at the ECU Hold time? Yes. That is how i've set mine up. Quote Link to comment Share on other sites More sharing options...
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