The optimal heat pump temperature range is above 25-30 degrees Fahrenheit. Posted by 3 years ago. Surprised you don’t have a warning for that. Is it 4 heat stages? There is a new model now, I think. I was called to check this unit after a previous tech from another company checked this unit out. TXV or EXV. And test, test, test the system before you lay the flooring down, to make sure it works. Of course. I can reset the trips, and the unit will run a few times, but eventually will lock itself out again. OP: All of the honeywell thermostats that are compatible with Heat Pumps and an outdoor sensor will have the lockout in the menu. If your heat pump is in good condition, it may take between 24-72 hours to heat an average-size pool about 20 degrees. Is Radiant Heating or Cooling Right for You? We used the AC on only two days during the summer and everything seemed to work fine. Changed the filters in the main unit and just found the coil. Our geothermal unit (terminology?) It's an upflow. I would worry about it not keeping up with harsh cold and if you loose power, freezing of water lines. But unless an airflow alarm is present, you are going ot get airflow, but if the coil is dirty, or filter dryer or outdoor TXV is plugged, you can get highs pressure. Your feet will be well taken care of, your shoulders will be the part that will have issues with the lack of heat. It’s possible that, if the weather is especially cold, your heat pump could run near-constantly without there being an issue. I used to own one of those systems. This means that you should therefore use only high pressure switches that are rated with the maximum working pressure specified by the manufacturer for the specific heat pump. It does not work well being turned on and off as it is designed to be constant(when your not there it would need to be near the same temp as when you are). The system itself is not expensive, it was roughly $2300 for 1200 square feet or close to it. That's all I know/understand about that. Close to max. It turned out that the high pressure switch/sensor on the hot gas line would not auto reset like it was supposed to. There are multiple possibilities but they are easily worked through if one know's what they are doing. Thanks for helping. I checked my coils outside and they were very clean, I changed all my filters which weren't too bad and re-set my system. Good luck. How did you check it, by the Tstat function test. 1.03 is very high. Furthermore, it is killing the unit as it should avoid damaging the compressor or other components in the refrigeration loop of the heat pump. In heat mode, a dirty outdoor coil can cause a low suction pressure. Heat pump running constantly. If you wanna use your existing thermostat, it's dead simple to add an outdoor lockout stat. 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Not sure what TXV or EXV is but I did do a static air flow test and it was high. Was it done by a qualified and licensed professional? "Is this the cause of the lockout issue ?". Coil looked pretty clean with some small spots of rust. If you budget $500 - $1000 PER MAT and then multiply that by how many mats you need (you could need 5-10 mats for your size of install) you have a STRONG understanding as to how much this will cost for materials. So get a quote for 450sf of tile install...and then go ahead and double and triple the cost. I'm not sure if the heat was functioning correctly at all but the tech that came and serviced the geothermal unit prior to us closing on the house said that everything was functioning normally (after repairing the AC part by turning the water up). high pressure lockout problem I have a rheem rpne018-jaz heat pump. This would eliminate "stand by" heating costs while you are not at cottage. Low Pressure Lockout (4 HRS) High Pressure Lockout (4 HRS) Time Delays The unit time delays include:--Five minute time delay to start cooling operation when there is a call from the thermostat or wall Control. But unless an airflow alarm is present, you are going ot get airflow, but if the coil is dirty, or filter dryer or outdoor TXV is plugged, you can get highs pressure. And that gets EXPENSIVE very, very, very quickly. That makes about 48,000,000 cubic square feet to heat, I suppose. Ditra has produced a heating mat that is more expensive (than the usual electric heating wires). Call back the perpetrators to fix the problem. That will tell you if the switch is Bad or Doing its job as designed! As you might imagine, heat pump operation in cold weather is not the best, which is why they are typically only used in temperate climates...think beaches, palm trees, and oranges. 2 HP and 2 gas? Heat pump is on and working as of now and brought room to temp. Low Pressure Lockout (4 HRS) High Pressure Lockout (4 HRS) Time Delays The unit time delays include:--Five minute time delay to start cooling operation when there is a call from the thermostat or wall Control. Goodman installation says Return > Coil > Air Blower > Supply. This can cause Extremely high head pressure. 3. A bad check valve on an air conditioner, heat pump or similar HVACR equipment can show up as abnormally low or abnormally high suction line pressures, or as abnormally low or high superheat. In heat mode, the indoor coil becomes the condenser and that is where the high pressure (gas to liquid) exists. I still love it! What type of system for radiant heat floor. GreenDesigns, yes, it's really 220 kWh per day. Earlier today we ran a test of sorts by cranking the heat up and letting the unit run for a full hour. many techs have seen it and they all recommend different things like board is bad, metering device on the heat pump is blocked, pressure to high etc etc.. Pressure too high … You will still require a source of primary heating to keep the ROOM warm. We laid down vapor barrier over concrete and then insulation foam layer. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. It works only if the groung loop flow is throttling. Make sure you have correct underlayment or floor substrate. But when we go the first bill, it was for 4,949 kWh or $525.18. I also like the wood heat High Efficiency wood burning fireplaces when you are there.... whats a cottage without a fire? We used 19 kWh in that one hour, so it seems that the geothermal unit is working properly as far as energy usage. That was a problem with tile, the foam is soft enough that the grout kept breaking. Rheem R-410A Heat Pump Troubleshooting This is where the majority of the disconnect is since even the manuals contradict in some places as do the techs. Learn more. An install this big usually works best with hydronic (water/gel/oil). Not sure what else to check. The problem is that the heat pump trips out on high head pressure when called upon. And Sophie is correct. uses 20/16/13 kWh, assuming the different fan speeds (our fan speed is NOT variable speed, left on high). 226 (Furnace) The furnace high pressure … Close. On Christmas, before we got the water flowing to the unit again (and were using the emergency strips), we had to turn up the heat because guests were coming over and it was 315 kWh for that day alone. Your final total will lie somewhere in between. I bought it from, my contact was Alex. ... With this extreme cold, however, I've hit a problem. By continuing to browse this site or use this app, I agree the Houzz group may use cookies and similar technologies to improve its products and services, serve me relevant content and to personalise my experience. Were you running heating or cooling when it tripped? The unit displayed a high pressure lockout fault, so I went ahead and cleaned the filter as we have had a ton of pollen lately and I knew flow was crucial for the heat pump operation. 4SHP14/15 SPLIT SYSTEM HEAT PUMP (R410A REFRIGERANT) (P) 506762-03 Manufactured By *P506762-03* Allied Air Enterprises LLC A Lennox International, Inc. Company 215 Metropolitan Drive West Columbia, SC 29170 This manual must be left with the homeowner for future reference. Re-started the system about an hour ago and the message is gone for now. Traditionally, in-floor radiant heat (electric mats) will DOUBLE or even TRIPLE the cost of tile install. Horizontal right installation with coil on the blower (upstream).Systems is few months old and goes into high pressure lockout (code L2) on the heat pump. Geothermal is expensive (my average cost is $45K to $70k all in) so I think you need to consider that. my high pressure lockout kicked on the other day, and when i pushed the contactor down the compressor would kick on, but the fan would not. present at the heat pump/defrost control. Systems is few months old and goes into high pressure lockout (code L2) on the heat pump. If this switch needs resetting on a heat pump, it means the head pressure or the high-pressure side of the heat pump is exceeding maximum pressure. The information given below can be helpful for you then. Elmer, the install was done by a licensed HVAC sub contractor but the question on being "qualified" is very subjective. Things to check are air flow and metering device. It can also cause a malfunction in the system that will lead to reduced capacity for cooling and heat (for a heat pump) or the system not functioning at all.