Resolved Block Heater

[Chuggs]

https://www.mouser.com/ProductDetail/612-R1966ABLKBLKEP

Hose Clamp, LCS, Dia 27mm x 1.6mm, PK10 https://www.amazon.com/dp/B01M1IVMXM..._sUyKCbSR7GEDE

Johnson Pump 3/4 in. CM30P7-1 Centrifugal Pump 10-24504-03(Same as 10-24489-03 but hardwire version) https://www.amazon.com/dp/B0073JNWZ6..._dVyKCbZ04MQN5

ACDelco 16199M Professional 90 Degree Molded Heater Hose https://www.amazon.com/dp/B000C9HJOE..._ZVyKCbCWYBS60

 

[Chuggs]

https://www.mouser.com/datasheet/2/140/R1966ABLKBLKEP-3457614.pdf

This switch is black, no illumination, and has posts which align with the pre drilled holes in the Oasis Remote printed circuit board. Insert solder, clip the excess post…

 

[Chuggs]

 

[Chuggs]

Pump sitting atop the module. The Oasis service manual has a blurb that shows there the coolant hoses and the pump power wiring is located on the left side. You remove the hose and place it on the output of the pump...then use a piece of htr hose with a 90 degree elbow in it to attach the module fitting to the pump intake. You'll find the length required to mate the parts and trim away excess hose...

The pump just has wires...so, you will habe to crimp insulated spade connectors to mate with the Oasis supplied wire bundle.

 

[Richpatty]

Thanks for all of that Charlie. Interesting…. I have the Oasis NE-s which is a large, all-in-one unit without a dist box….so I would need to see where it would go.

Thanks.
Rich

 

[Chuggs]

Thanks Charlie. Where does the pump get installed?

https://itrheat.com/wp-content/uploads/2018/10/OASIS-NE-S-Installation-and-Operating-Manual-October-29-2018.pdf

For that unit…it appears you install an additional pump inside the unit.

 

[Richpatty]

https://itrheat.com/wp-content/uploads/2018/10/OASIS-NE-S-Installation-and-Operating-Manual-October-29-2018.pdf

For that unit…it appears you install an additional pump inside the unit.

Yea…that makes sense. Thanks for the info!

 

[RandyB]

Update to whether or not block heater is operational.
1. Ohm check across hot and neutral of the plug for the heater: 19.8 to 20.0 ohms
2. 110 volts with 20 ohms = 5.5 amps (Ohm’s law)
3. Started generator, switched off inverter and charger. Amp draw on L2 = 2 amps
4. Plugged in the block heater. Amp draw = 8 amps
5. 8-2=6 within reason of the projected 5.5 from ohm’s law
Conclusion: all OK. Block heater element is good and circuitry feeding it is fine.

I was expecting a much larger draw on the generator at first, resulting in the original post. I was anticipating more like turning on an a/c and hearing the generator respond.

Thanks for responding and reading. Again, RV education. Every time I use it.

Anecdotally: LCD displays in the overhead are real slow and dim at 15 degrees above 0 F.