As you know cooling a unit is quite the task these days, especially when you add the problem with not being able to idle the unit all the time. We are beginning the process of moving some units around to help combat this problem.
Plugging the unit in, even in the summer
The Chevy units are not able to be idled for long periods of time. There is a new exhaust system that actually clogs up and causes the unit to run at reduced power if the unit idles too long. This could be quite a problem when given an emergency. To combat this we began to move to a 110/12 Volt A/C system a few years ago. This means, that when you plug it into a shore line, the A/C as well as the heat works. We are moving these units to the outlying stations during the summer months, some of the units will remain in the city. The goal is to have all our fleet equipment with a system like this to reduce idling time, and heat problems.
We are having signs made for the interior as well as the exterior to remind you to plug in the truck to keep it cool.
Unit 507 has a generator on it. We will be placing it on a 12 hour city car fulltime to test its ability to reduce idle time. This unit has its own unique procedure to be followed.
Setting the high idle
When you do have to idle a truck on scene, be sure to always set your emergency brake which enables the high idle. This helps the unit cool, as well as reduces the strain on the alternator. Failure to do this is causing some real issues. So you will know, the high idle causes the fan to run faster, causing the engine to run cooler, I know it sounds like it is going to blow up, but it really is better for the unit.
Idling at the hospitals
While I am talking about idling, the hospitals are asking us once again, to kill the units when in their ER bay. Our noise and exhaust are causing a problem in their building. Please respect this wish.
The following units have a 110/12 volt A/C system
126, 136, 137, 138, 228, 232, 415, 416, 420, 425, 502, 504, 513, 514, 519, 522, 609
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