Home>Discussions>INSULATION & HVAC>Thirteen year-old electric heat-pump HVAC system: should we replace or repair?
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keith3267
Re: Thirteen year-old electric heat-pump HVAC system: should we replace or repair?
Unk wrote:

No, the first tech did not check the pressure. I talked to another HVAC tech today and he said he could install an after-market switch that would Tee into the high-pressure line and would not require draining the system, quoted $244.35 for parts and labor. I have a call into the company that did the bypass for their input.

That sounds like a leak waiting to happen. I would not do that. Either the system pressure has to be measured directly or they put a thermometer in each coil (condenser and evaporator) and refer to a chart that compares the two temperatures to the ambient air temperature do determine if the system has a sufficient charge. One of those tests must be done, otherwise the technician is just guessing.

hvacsystemtalk
Re: Thirteen year-old electric heat-pump HVAC system: should we replace or repair?

400S for pressure switch is too expensive. Hope you find the best way.

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