How the Auto Cool controllers operate:
The sensor is measures the OUTFLOW temperature of your radiator
and then sets the fan RPM to regulate the OUTFLOW temperature you have dialed with the black knob. So if you have set the OUTFLOW temperature 10 to 20 degrees F. below your thermostat temperature you will have rock solid engine temperature. Use a laser temperature gun at the OUTFLOW to
check your regulation. Check it parked and motor at an idle.
Also keep in mind, that three things are going to effect the fan RPM.
First is your speed, second is motor loading, and outside air temperature.
Starting your engine for the first time you will NOT see the fans start.
I do not want to hear the BS term "KICKING ON." When the radiator has reached about 140 F, +/-, the fan or fans will start to turn slowly. The fan(s) will increase RPM and reach the point of regulation that you have set with the black knob. For A/C fan speed control, there is a small pot on the side of the controller that sets this fan speed. The radiator control will over ride this fan speed.
Brushless fans: If you have this type of fan, it will fibrate at low RPM unless your purchase our 7Khz HF-125 controller.
Our controllers have Soft Start that limits inrush current from starting a dc fan motor from a dead stop. This is what brand X controller boys fail to realize and why their controllers keep burning out. Auto Cool also has a cool down timer, so when you turn off the ignition, the fans will operate for under a minute.
YOU CAN REACH US VIA THE PHONE OR
EMAIL JUST ABOUT 7 DAYS A WEEK.
DARRYL THE AUTO COOL GUY
562-367-3225
If you return a controller or a sensor for test or repair, please put your full information in the package with name, address, email and phone number!
It will prevent long delays getting it back to you!
The On Line Store Page 1 below. . . .
ATTENTION:
YOU WILL NEED THE HF-125 FAN CONTROLLER @ 7,000 HZ IF YOU HAVE A BRUSHLESS FAN MOTOR.
If your run a brushless fan on a low frequency controller, the fan will vibrate out of control at low RPM.
I made this video of the DX-150 - how it works on the bench.
DIESEL RADIATOR TEMPERATURE CONTROL
Hi good morning Darryl The Auto Cool Guy, from the Philippines Islands. Here is my HF-125 up and running smoothly on my 2000 LN166 Toyota Hilux 1kz-te diesel engine with rear mounted radiator beats that heat in the PI!
Best regards, nelbin binag
The On Line Store Page 1 below. . . .
Sensor Warning: If your radiator OUTFLOW port is plastic, do not use the Standard Brass sensor. It will not get true heat transferred to the sensor! This will result in very low or no fan RPM.
US ARMY ORDINANCE:
CALLED UP FOR A TOUR IN SOUTH EAST ASIA AND ASSIGNED TO THE 295TH ORD. FROM HASTINGS & GRAND ISLAND, NEBRASKA
10-68 TO 10-69.
The photo on the left is the Auto Cool Guy. Location was north of Quan Tri City just south of the DMZ. When we were out of our base camp we always carried our M16s and at least 8 clips of .223 ammo with 20 rounds in each clip.
The photo on the right was taken one night outside of our hooch in Da Nang. For some reason I loaded 35mm high speed slide film in my camera and had it mounted on a tripod ready to go that night. As we were drinking beer and such, all hell brook loose and the sirens went off. Then we heard one of our NCOs telling us to get into our bunker. We answered back to this NCO that we were busy drinking and taking war photos. With my camera and standard lens I shot this time laps photo of a Cobra gun shop spraying 7.62mm rounds on the Da Nang perimeter. In the morning all the MPs found was a dead water buffalo. So you see all the fun you can have in the Army!
We have been building pulse width modulated radiator temperature controllers right here in the USA starting in 2011. We design and build quality and what the customers want!
The Auto Cool Guy supplies the Standard Brass Sensor with your controller. However, if you purchase a Brass Plug Sensor or one of the Copper Inline Sensors, we do not supply the Standard Brass Sensor as the default sensor with your order.
Attention Australian buyers: The cost to ship controllers to your country has gone way up! Fed-X will be the system used from now on. We will get a shipping cost and email you the added expense. There may also be a delay in Pay Pal payments to us. What a bloody mess!
Full line of sensors for the Auto Cool Controllers
Copper Inline
Sensors:
If you have a PLASTIC radiator outflow port, you need use the inline copper sensor. If you use the standard brass sensor on the plastic port, it will not absorb the correct amount of heat. This will lead to a lower fan RPM that will let the radiator run hotter than normal.
The copper inline sensor can be ordered in 1.25 - 1.50 - 1.75 and 2 inch OD. Measure your hose ID for the best copper inline sensor fit. Be sure to email the diameter required.
One year warranty
on all sensors!
CALL: 562-367-3225
Standard Brass Sensor:
With each controller sold, we supply a standard brass sensor as standard.
However, if you order a Brass Plug or Copper
Inline Sensor, we do not include a Standard
Brass Sensor.
The Standard Brass sensor is mounted on the OUTFLOW port under the rubber hose. The sensor detects the outflow temperature and sets the fan RPM to keep the outflow port at a constant temperature.
If you have a radiator with plastic tanks and ports, you may want to order one of the copper inline sensor or the 3/8 inch brass plug sensor.
This sensor has a five foot twisted pair of 20 gauge wire that is connected to your Auto Cool Controller. If you add wire to the sensor line, be sure to solder the splice to avoid open failures down the road.
If you order one of the Brass Plug Sensors, please email us the size you need. 1/8 - 1/4 or 3/8 inch.
A short YouTube video on the Brass Plug sensors from the Auto Cool Guy. 1/8 - 1/4 - 3/8 NPT
Be sure to use TEFLON tape on this type of sensor
for proper seal and no leaks!
We can make you a special sensor to order. This one has an extra port for a drain.
Customer wanted to measure radiator inflow and outflow temperature with 1/2 inch ports on his radiator
The Standard Brass Sensor will form fit all out flow ports sizes! No need to tell us you want X size Standard Brass Sensor!!!!!!
We now have three Brass Plug Sensors.
1/8 inch - 1/4 inch and 3/8 inch
Be sure you tell the Auto Cool Guy the
size of the sensor you need for your
radiator. You can send an email or even a
phone call. All three have the same price.
Mount the Brass Plug Sensor close to the
outflow port if you can - on the bottom of the
radiator.
We supply extra twisted pair wire to extend
to your Auto Cool Controller.
BAD IDEA - LEADS TO
LEAKS IN RADIATOR
The guys at Brand X controller company has you stick probes into your radiator core. This can lead to leaks from vibration over time and miles.
Bad idea overall!!
THE STANDARD BRASS SENSOR
Please do not attempt to use any sensor other than the sensors manufactured by
The Auto Cool Guy
they WILL NOT WORK.
.