Dual XF250 pumps connected to dual icecap battery backups plus dual icecap controllers

Apr 21, 2018
Scott Vandiver wrote
Can I get a clear diagram for the connections that need to be made when running dual xf250 pumps + dual icecap controllers + dual icecap backup batteries.

Seems like this should be straight forward but it’s anything but....

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9 Answers
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Apr 23, 2018
Carlos agent wrote
Here you go... http://blog.coralvue.com/download/9156/
Apr 23, 2018
Scott Vandiver wrote
This does not cover how to connect this using two icecap gyre interfaces. What I’m stuck on is the power connection. Normally you use a Y adapter with one connection from the battery and one from the power supply. This connects to the xf250 controller..

However now with the 2 icecap gyre control modules you need a separate power feed for each. How is this accomplished?
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Apr 23, 2018
Carlos agent wrote
The IceCap interface replaces the native controller. Other than that, the pumps are installed on the battery the same way you do with the regular native controller.
Apr 23, 2018
Scott Vandiver wrote
But the native controller has facilities for two pump connections. Thus it the controller is supplying power to two pumps, the icecap has only a single. Where do you split out the power. Please draw this out,your answers are only showing you either are not understanding my question or are not aware of how your products work together.

I’m not trying to be rude, but I have the items right in front of me, and your descriptions are not logical. The icecap modules both require power. The Maxspect advanced controller only requires a single power connection.

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Apr 23, 2018
Carlos agent wrote
Right, you need one module per motor block. Think of the pumps having their own controller and power supply. All you do is replace the native controller with the module and then connect it to the battery the same way you would with the native controller. When you use the IceCap Module, you need one module and one power supply per motor block. The battery has two power outputs so it can provide power to two separate pumps at the same time.
Apr 23, 2018
Scott Vandiver wrote
But there is only one power supply in this setup at the moment. Then are you telling me, I need to purchase a 2nd power supply in order to make this work properly.

Normal setup:

Maxspect Advanced Controller —> connection to Y cable, —> Connection 1 —> Battery, Connection 2 —> power supply.

New setup with Icecap module.

Icecap module 1 —> connection to Y cable, —> Connection 1 —> Battery, Connection 2 —> power supply
Icecap module 2 —> ????

Unless I own a second Maxspect gyre advanced controller I do not possess the Y cable nor power supply to drive the second Icecap module.


I can’t just connect them to the battery as there will be no power sense and the icecap modules will run reduced (30%) mode.

My take on this setup was two batteries which is the Icecap max batteries that can be use in the setup + two Xf250 Gyre Pumps + a single Maxspect advanced controller (with include power supply) could be directly replaced by purchasing two icecap modules. However if I follow your explanation, I would have to also purchase a separate second power supply.

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Apr 23, 2018
Carlos agent wrote
Yes, remember that you are trying to use a 3rd party product. Maxspect is going to provide you with what they need for their equipment to run. This means that since their controller can run two pumps at once, they only need to provide you with one power supply. Since you are choosing to not use their product but a 3rd party controller, you have to purchase the necessary parts to run that 3rd party controller.

You can purchase a spare power supply here... http://www.coralvue.com/maxspect-gyre-power-supply
Apr 23, 2018
Scott Vandiver wrote
It would be excellent if the retail shops and the documentation from icecap explained this I the marketing material. There are warnings notices in there about the forward/reverse variable cable but nothing about needing to purchase a second power supply.

I highly recommend this and or sell a Y cable solution that alleviates the problem. Obviously the power supply has enough amperage to drive two pumps, really all that is needed is a Y adapter to provide power from the single power supply to the Two icecap gyre modules.
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Apr 23, 2018
Carlos agent wrote
I will pass on your suggestions to the manufacturer.