Results 1 to 6 of 6
Thread: Danfoss fan speed controller
-
11-05-2009, 12:18 AM #1
Danfoss fan speed controller
I have some DX systems with danfoss fan speed conrollers RGE X3R4-7. These systems were fitted, filled and supposedly commissioned. I was initially having a problem with compressor tripping on HP as the air cooled condensers weren't comming in. I have reduced the pressure setpoint on the controller as this was still at factory setting and the fans now come in. Could anybody give me some advice on how i determine the correct pressure to set on these controllers.
Thanx
-
11-05-2009, 06:30 PM #2
Re: Danfoss fan speed controller
By turning the "adjusting screw" on the device (says the brief instruction I found in a matter of few seconds, thanks to our old friend Google). Your device is intended for work with R22 , R404, R407C. So, according to the refrigerant type used in your systems.
-
11-05-2009, 06:44 PM #3
Re: Danfoss fan speed controller
I am an electrician working in HVAC and may turn to be dissaproved by profi refs, but I usually set 33-35 C to maintain no matter what refrigeration, with 1,5 -2 Bars differential.
-
11-05-2009, 06:51 PM #4
Re: Danfoss fan speed controller
Differential, however, should be a fixed one in your device.
-
11-05-2009, 07:53 PM #5
Re: Danfoss fan speed controller
Much fuss, little fun. By 33-35C is meant condensing temp (read on the "clock").
-
11-05-2009, 11:56 PM #6
Re: Danfoss fan speed controller
Thanx guys
The manufacturers data said a condensing temperature of 38 deg c so i set to around 36 deg c, 13.5 bar for 407C. Just wanted to be sure.
Similar Threads
-
LG heat pump problem
By back2space in forum Heat PumpsReplies: 132Last Post: 01-02-2009, 11:23 PM -
Upgrading Danfoss AK2 controller
By interop in forum Supermarket RefrigerationReplies: 2Last Post: 16-10-2008, 02:06 PM -
Thermo King OptiSet
By REEFER-TEK in forum TransportReplies: 4Last Post: 06-12-2007, 07:23 PM -
Fan speed controller set up
By Ianh in forum Technical DiscussionsReplies: 7Last Post: 09-01-2006, 07:48 PM -
Fan Speed Controller
By Abe in forum CommercialReplies: 3Last Post: 02-06-2004, 05:46 PM