Champion IM70 User Manual

The IM70 indirect cooling module (ICM) is a pre-cooler used in 2-Stage or Indirect/Direct evaporative cooling. The ICM cools
the air without adding any additional moisture. It accomplishes this by circulating water downward through a heat exchanger,
while a fan draws air upward through the heat exchanger. This air and water are cooled by evaporation and in turn cool the
walls of the heat exchanger. The removed heat is exhausted
from the unit with the moist air. Hot, dry outside air is pulled
horizontally through the cooled walls of the heat exchanger by
the attached evaporative cooler. This air is cooled and since
it does not contact water, there is no moisture added.
The dry air cooled by the ICM is then cooled more by the direct
evaporative cooler. The dry bulb temperature of the air after
going past the ICM drops as does the wet bulb or saturation
temperature. This cooled dry air from the ICM is pulled through
wet evaporative media in the direct evaporative cooler which
cools the air and adds moisture. The temperature leaving the
evaporative cooler is lower than what is possible without the
ICM, often below the ambient wet bulb temperature.
The IM70 can be mounted directly to Champion's Ultracool 51
& 71 series evaporative cooler models for a complete 2-stage
evaporative cooling process.
1. Read instructions carefully.
2. Electrical hook up should be done by a qualifi ed electrician, so that all electrical wiring will conform to your local stan-
dards.
3. Always Disconnect from Power Source before installing or performing any maintenance.
4. The IM70 will run on 120V A.C., single phase, 60 Hz (cycle) current only.
5. The pump and motor are equipped with an automatic thermal overload switch which will shut motor off when it overheats.
The motor may start unexpectedly after it cools down.
110521
Indirect Cooler Module

Users Manual

2 Stage Evaporative Cooling
www.championcooler.com
Model
IM70
Heat
Exchanger

Safety Rules

Hot Dry
Air
Cool Dry
Air
5-07