M380 Hurricane Heater

[Robert Britton]

I found the invoice but the amount of coolant used was not listed. I also found my Hurricane Owners manual...here is what it says about filling the system with coolant...

To Fill system use a separate self priming pump with a hose on the suction side. Put the hose into a 5 gallon container. Remove the systems hose from the outlet of the expansion tank, which is feeding the system circulating pump and attach it to the outlet of the self priming pump. Remove the hose from the inlet of the expansion tank and hang it into the 5 gallon container.

Make a final check to ensure all of the air vents and drains are closed. Pour a mixture of antifreeze and water into the container and start the pump. As the mixture is pumped out, slowly add more mixture keeping the level above the inlet of the suction hose until all air has been expelled and the mixture starts coming out the return hose hanging in the container. This will flush the system of any debris and purge the lines of air. Continue to run the pump for about 15 minutes.

When no more air is being expelled, stop the pump and reconnect the lines to the expansion tank. Top off the expansion tank with the mixture and turn the systems circulating pump on with the jumper, located on the main control board just right of the pump fuse marked "cir. Pump Override". When the jumper is on, the pump will run continuously and the bottom LED will be lit.

Check for a good flow through the expansion tank and double check all joints for leaks, Open and close all air vents to eliminate any remaining air bubbles. Recheck the mixture level and circulation in the expansion tank.

Caution: Make sure you have good, quiet circulation of water through the heater. Check the pump to make sure it does not run dry. If the heater has air pockets trapped in the water jacket when it is turned on, it could overheat and damage the unit. None of this is covered by the warranty.

Here's a link to the manual. The model in the M380 is "CO45", also refured to as "CO45D"
http://itrheat.com/wp-content/uploads/20...ual_R4.pdf

Hope this helps.