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OPERATION
INSTRUCTIONS
The Tanis Aircraft
Services. preheating system is designed to aid you
in starting your engine in cold weather, and to
reduce the problems of wear associated with cold
starts. The TAS100 system places a small amount of
heat where it is most needed. This six cylinder
model consumes only 490 watts. This system is
designed to be operated for five or six hours
before the engine is started . It is not intended
to rapidly preheat the engine. Some type of engine
cover should be used. A Tanis insulated engine
blanket is recommended
To use the system simply
connect to a 115V power source at the plug located
in the oil filler door of your cowl and cover the
engine. The heater takes 4 to 5 hours from cold or overnight to preheat the engine properly. You can leave it plugged in all the time if you fly once a week.
To start, remove the cover,
unplug, and start the engine. Your engine will
start like it does in summer down to about 10
degrees. From 10 degrees to -10 degrees, a small
amount of prime may be necessary. From -10 degrees
down, an increasing amount of prime may be
necessary due to the extremely cold air taken in
the intake. After starting, carb heat application
may help on some engines.
HOW FAST?
In the past when people asked us about the time to start when using the TANIS preheat systems on piston engines we always answered “five or six hours at any temperature down to the rated temperature of the system.”
Today more people want a system that can be used for a short period of time prior to starting. We’ve checked our data and recommend the following for aircraft using an insulated engine cover in no wind conditions.
For either the Standard (-30º F) system or the “SUPER” (-65º F) system at temperatures above +30º F, as soon as you can start it!* Plug the heater in, wait about 15 to 30 minutes, then pull the prop through a few blades to be sure it rotates freely (be sure your mag switch is off). Then start your engine.
*One of our customers using oil spectrum analysis found that he could see a difference in metal content in oil when he plugged his Tanis Heater in at 45°F vs. 35°F.
At temperatures below +20º F, the following minimum times apply:
Temperature |
Std System |
Super System |
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+10 F |
2.00 hrs |
1.15 hrs |
0 F |
2.30 hrs |
1.20 hrs |
-10 F |
3.00 hrs |
1.30 hrs |
-20 F |
4.00 hrs |
2.15 hrs |
-30 F |
6.00 hrs |
3.00 hrs |
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(Again, you should check your prop for restriction to rotation before starting)
The above assumes that you are following the engine manufacturers recommendations regarding oils for the temperatures in which you are operating.
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