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Here is how you want to wire the squid cable for DDB units when using a MTEC module:
The TEC plug is pretty obvious as well as the temp sensor plug. The Pump connector has on two wires going to it. The Fan connector has three wires going to it. Plug that into the Fan 1 header.
If your DDB unit is the only unit attached to a MTEC module, be sure to plug it into the Chiller A side.
If you DO NOT have a MTEC module, you will only need to connect a molex power plug directly to the DDB unit. If you wish to change the cooing power of the DDB unit (when no MTEC module is used) you can unscrew the 4 screws at the back of the unit removing the "grid covering" from the back by sliding it up. (towards the top of the DDB ) On the control board (left hand side looking at the back of the unit) you will see a small switch. It has three settings for Low, Medium and High. Low is the setting towards the front of the unit. (pushing the switch away from you) and High is the setting closest to the rear of the unit.
If you want the ability to monitor coolant temperatures of your DDB and set it to specific temperature limits, you will need a MTEC module to do so.
If you have any other questions, feel free to ask!
*Thanks to EliteUser for writing this guide.
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