PDA

View Full Version : Controlling a large chiller with one socket on the powerbar?



H20ENG
14.10.2009, 02:20
How do I control a big 1HP 220V chiller from the GHL powerbar??? Simple!:)

I used a contactor for the chiller with a 120v coil. The chiller plugs direct to a 220v dedicated circuit, and the coil connects to the powerbar, only drawing a few watts, which leaves plenty of capacity for lights, etc:)

Lemme know if you need help with them.:D

LaW
14.10.2009, 05:24
yes i do need help on that. how do you do it? mind giving me the model etc? i know some very basic electronic and soldering. i will be grateful if you show me how to do it.

thanks!

LaW
14.10.2009, 13:32
give me a picture on how you do it too.

thanks

regards

H20ENG
15.10.2009, 00:49
The easiest way would be to make a contactor box with the chiller 220v receptacle, and 220v plug coming out, with the 120v plug to plug into the powerbar.

I mounted the contactor right to the chiller and interupted the main power to the chiller with the contactor. I'll get a pic, but not much to see.

H20ENG
15.10.2009, 00:52
Here is the contactor I used, along with the little cover box.

http://factorymation.info/relays/W199_Series%20Relays.pdf

aqua_digital
17.10.2009, 23:25
This is the same concept as the high amp power bar from GHL.

maybe Matthias when he is not buried under P3 development could look at making a 220V high amp with North America 220V plug socket:D

H20ENG
18.10.2009, 18:06
Exactly Michael:)
Several ways to switch the chiller depending on its size, voltage, etc. Ideally, you would just relay the Tstat wires on the chiller. But many chillers are wired differently, so simply switching the mains is acceptable, as long as the chiller Tstat does not lose its setpoint.