franklinair
Well-known member
- Joined
- Mar 1, 2007
- Messages
- 4,744
I'm currently working on a '68 Mustang with factory A/C, looking at how to improve the cooling when using the A/C.
The factory system has one hot water shutoff actuated when A/C is selected.
That leaves the other hot water line still allowing hot water to the heater core. Even if there's no hot water flow it can still allow heat transfer into the heater core.
NPD lists another water valve (P/N 18495-1, $12.95) that can easily be installed on the second hot water hose. I'm going to install it, and connect the same vacuum line that actuates the Factory valve. This will shut off all hot water to the heater core when running the A/C.
When done, I'll shoot a photo to show the installation. (And results)
Neil
The factory system has one hot water shutoff actuated when A/C is selected.
That leaves the other hot water line still allowing hot water to the heater core. Even if there's no hot water flow it can still allow heat transfer into the heater core.
NPD lists another water valve (P/N 18495-1, $12.95) that can easily be installed on the second hot water hose. I'm going to install it, and connect the same vacuum line that actuates the Factory valve. This will shut off all hot water to the heater core when running the A/C.
When done, I'll shoot a photo to show the installation. (And results)
Neil