Results 1 to 2 of 2
Thread: Markus heat pump problem
Threaded View
-
09-12-2008, 02:40 PM #2
Re: Markus heat pump problem
It may be low on gas or have a defect expansion valve. In addition the manufacturer installed a to small expansion valve on some R134A pumps causing unnecessarily low evaporating temperature. I suppose your pump has no liquid sight glass. If it dont have one, then the proper procedure is to measure the high pressure, convert it to temperature, measure the condenser refrigerant outlet temperature and fill the system until the pressure derived temperature gets roughly 3 to 4C warmer than the condenser outlet refrigerant temperature.
As you now have tampered with the expansion valve adjustment you have to observe the suction superheat as you fill the system and adjust the expansion valve as required.
If the pressure derived temperature already is warmer, then your expansion valve probably is defect.
Similar Threads
-
Design heat pump for a pool
By rolandh in forum Heat PumpsReplies: 10Last Post: 23-09-2010, 10:50 AM -
New Heat Pump Forum
By Argus in forum Heat PumpsReplies: 17Last Post: 10-04-2010, 09:12 AM -
Heat Pump components
By mayo in forum Heat PumpsReplies: 22Last Post: 04-05-2009, 07:29 AM -
Heat pump problem
By Darc in forum Trouble ShootingReplies: 5Last Post: 23-08-2008, 10:21 AM -
Will this heat pump work?
By goodguy in forum Heat PumpsReplies: 7Last Post: 08-03-2008, 04:14 PM