Nice to see a lot of info in one spot. Only one comment - you should think long and hard about using a manual valve in the engine bay to block coolant from going to the heater core. The return line provides critical cooling for the engine (to the head as I recall). This would also negate the built-in recirculation pump feature as no water could flow under any circumstance. If you want to do something manual (aka quick and dirty), you can just take both hoses off the heater core and connect them together with a pipe nipple and clamps. No danger to engine.
Again, nice write-up!
Viper et al, How does Huper Optik "nano-ceramic" compare to the 3M product? Local tinting co doesn't carry 3M. Curious if Huper is comparabe???
THanks Viper. You've been a big help with all the HVAC issues... I might take chance on the Huper product since there's an installer right down the street who wants the biz... Good to get some feedback on another pridcut too...
Then off with the front clam to fix that silly resistor pack.grrr.
Will do on the Huper... Tint shop says the Llumar Air Blue works really well too... also a ceramic tint like the 3M and Huper... They say the the Huper and Air Blue have less distortion than the 3M product... Of course they don't sell 3M, soooooo......
I need order that resistor pack tomorrow. I'll fix that after my track day next week I guess...
How easy is this to install? Is it strictly a dealer/professional item, or is it easily done by someone with decent mechanical skill? How much does the dealer charge for labor on this?EVAPORATOR COIL FREEZING
An additional upgrade is the installation of an electronic thermostat to replace the capillary based unit used on earlier models. This electronic thermostat was introduced on factory build at approx. February 2007. The unit has improved temperature sensing and faster reaction time, reducing the possibility of ice formation. It was possible under extreme ambient conditions of high humidity for ice to form on the evaporator core and restrict air flow past the temperature probe creating a “domino effect” which can lead to complete icing up of the evaporator core and little or no airflow to the cabin vents. Electronic Thermostat Retrofit Kit - Lotus No. A120P0149S Parts cost $142.87
How easy is this to install? Is it strictly a dealer/professional item, or is it easily done by someone with decent mechanical skill? How much does the dealer charge for labor on this?