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iantelescope
@iantelescope
Contributor
Prominent Member
Joined: Mar 29, 2023
Last seen: Apr 29, 2025
Profile Activity
Topics: 1 / Replies: 417
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Reply
RE: 12kW Samsung gen 6 short cycling

@derek-m Testing Grundfos motors I have connected a Pulse generator to find out if one of my GRUNDFOS motors is working. I varied the Pulse width ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

@iancalderbank Hi Ian, Your system seems a lot more up to date than mine. My Grundfos motors still has LEDs .which do not show that the PWM sys...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

@iancalderbank I know , Ian, I am confused myself......... So here is latest on the PWM sage......... My Grundfos motors work under PWM when fe...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

@iancalderbank Hi Ian More revelations about the Grundfos PWM Motors! I have connected my oscillator (to the Brown(Sig) and blue(Ref)) wires an...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

@iancalderbank Hi ian, In frustration I have connected a Wave generator only to discover that you are right. The Wiring shown in the manuals is w...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

@dandee Many thanks ......again I am astonished with the information about the SIG and REF inputs............. specifically , How have you connec...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

@iancalderbank Hi Ian. Following my trumpeting of my apparent success in correcting the losses in my heat pump I have to admit that the supposed ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

Hi Graham, Believe it or not but I agree with you ! Having looked over the last year at the poor , incompetent , support I have had from my "insta...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

@william1066 THE PWMI have finally got a "hopefully working PWM Motor controlling the Motor Speed to control the Water Heat Power. The Critical p...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

@mike-h PWM Signals producing E912 errors when Not in use! I have been recording the PWM Signals presented to my GRUNDFOSS MOTORS. When supplying ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

@mike-h World record for Hyper-Cycling! Have a look at my Hyper-Cycling SAMSUNG HEAT PUMP. I make it 94 cycles in one day! Can anyone ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

Sorry William, I found the PWM Flow rate on page 58 of my new manual. Many thanks also to Graham , the new version of the manual at 208 pages is inf...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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