Anyone using the ministry defender heat/hvac kit

3121 Views 48 Replies 16 Participants Last post by Red90, 4 mo ago

Mirra

Discussion Starter · 9 mo ago

Looking for feedback on the ministry defender heat/ ac combo unit. Kit is complete and includes all hoses and fittings? Are you happy with the quality and the output of the ac temperature?
I’ve been using a webasto diesel heater these past winters, but may remove that system in favor of this ministry kit. Feedback welcome….:thanks, Jim

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John Z

· #17 · 9 mo ago

Install is about a day. I was able to knock it out within 8 hours.

As for the windows fogging, I did have issues with it last year, but then again my thermostat was stuck open so the truck wouldn't warm up. Now I have a new thermostat so I actually get to 180/185. I picked up a heated windscreen which is amazing. I'll update how this year goes

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John Z

· #19 · 9 mo ago

Red90 said:
Personally, I would construct a fresh air flap. Connect it to the fan speed cable so that you can open and close it. That solves the winter issue. I have no idea why they don't do this with the original design.

When you swap to their fan setup you don't use the factory switch that uses the cable. I guess in theory with my setup I could make it work.. I'll have to keep an eye out for another heater switch with cable since I sent mine to the bin.

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John Z

· #27 · 9 mo ago (Edited)

Mirra said:
Their YouTube Video shows them not using the electric fan. They kept the stock radiator fan.

You NEED the fan if you're not moving the AC will be **** without it.

MOD AC install

So I figured I'd pass along how I did my AC kit as I did deviate from the original design a bit. Starting with the wiring, I added another relay and have it setup so that when the AC is on it will automatically start the fan. When the AC is off, the normally closed contact off relay 1 will...

www.defendersource.com

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John Z

· #43 · 9 mo ago (Edited)

Was no challenge 🤷 has a normally open and closed pressure switch, and I added a relay to mine..

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John Z

· #46 · 4 mo ago

pretty much how I wrote it up in an earlier post. I do wish I opened up the hole into the cabin to see if air flow would be improved or not..

oh, and I used oem compressor so id imagine you can pick up whatever components you need(oem/aftermarket)

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