entering a leaving fluid thermistors before welding

[yuna]

Welding is not recommended in the cooler heads or nozzles. In the event that welding must be performed, remove the chilled water flow switch and entering a leaving fluid thermistors before welding.

This is from an air-cooled chiller manual.

I don't really get what the underlined part says. Grammatically, it doesn't seem correct.
Could you make a guess?

 

[Copyright]

It makes some sense if you drop "entering a leaving." But that's a guess.

 

[yuna]

Yes Thanks.

 

[Cagey]

Are there two thermistors? If so, it might be:

Remove the chilled water flow switch and entering and leaving fluid thermistors before welding.

[i.e. the entering fluid thermistor and the leaving fluid thermistor.]​

That would explain the plural form 'thermistors.'

 

[Copyright]

I would say yes. As an example, in this PDF on page 4, I found there are six thermistors in that particular air-cooled chiller, with the first two (in a table on page 4) under "Thermistor Input" being "Cooler Leaving Fluid" and "Cooler Entering Fluid."

So Cagey has it, in my opinion. (And thanks for the nudge.)