Hello,
A few days ago, I installed a new Raypak 5450ti heat pump (103k BTU). I plumbed it with 2" pipe from the filter housing to the heat pump inlet, as well as from the heat pump outlet to the salt water chlorine generator cell. I have 2" ball valves going to/from the heat pump, with a 2" bypass, also with a ball valve so I can bypass the heater when not required and drain it as needed.
The day I installed it, the pool temp was about 72F, ambient was in the low 80s. The unit ran like a champ and warmed the pool to the set 84F level with no problem, with the pump (pentair SuperFlo VS) running at 2600RPM and heat pump running continuously. The next day, kids jumped in and noted that the pool was cooler and jets were not pumping out warm water, so I investigated. 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.
Long story short, it has changed nothing. Compressor kicks on and runs for 3-4 minutes and the high pressure trips. while the compressor is running, the discharge air from the unit is quite cold and jets are flowing noticeably warmer water, so some heat transfer is taking place. I have tried max pump RPM, running with no filter, low (2000) RPM, cracking the bypass valve in various positions, etc. The heat pump is just outside the pump shed. I used about 30 feet of 2" pipe to run both inlet and outlet runs from filter housing all the way back to the salt cell. All-in, there are (Qty 9) 90-degree bends and the 3 ball valves, and the heat pump is on the same elevation as the pool pump/filter. I tried to simplify the plumbing runs as much as possible.
I have called Raypak and they are sending out a tech Friday to inspect the unit itself, but I'd like to make sure I have tried all that I can from a DIY perspective...I only have automotive A/C gauges, so no chance for me to check pressures on this thing. I have found no measurements in the installer menu on the unit that amount to much insight. Also, no one locally sells flow meters that I can plumb in in the meantime.
Any thoughts on what to look for / try next?
Thanks in advance for any advice!
A few days ago, I installed a new Raypak 5450ti heat pump (103k BTU). I plumbed it with 2" pipe from the filter housing to the heat pump inlet, as well as from the heat pump outlet to the salt water chlorine generator cell. I have 2" ball valves going to/from the heat pump, with a 2" bypass, also with a ball valve so I can bypass the heater when not required and drain it as needed.
The day I installed it, the pool temp was about 72F, ambient was in the low 80s. The unit ran like a champ and warmed the pool to the set 84F level with no problem, with the pump (pentair SuperFlo VS) running at 2600RPM and heat pump running continuously. The next day, kids jumped in and noted that the pool was cooler and jets were not pumping out warm water, so I investigated. 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.
Long story short, it has changed nothing. Compressor kicks on and runs for 3-4 minutes and the high pressure trips. while the compressor is running, the discharge air from the unit is quite cold and jets are flowing noticeably warmer water, so some heat transfer is taking place. I have tried max pump RPM, running with no filter, low (2000) RPM, cracking the bypass valve in various positions, etc. The heat pump is just outside the pump shed. I used about 30 feet of 2" pipe to run both inlet and outlet runs from filter housing all the way back to the salt cell. All-in, there are (Qty 9) 90-degree bends and the 3 ball valves, and the heat pump is on the same elevation as the pool pump/filter. I tried to simplify the plumbing runs as much as possible.
I have called Raypak and they are sending out a tech Friday to inspect the unit itself, but I'd like to make sure I have tried all that I can from a DIY perspective...I only have automotive A/C gauges, so no chance for me to check pressures on this thing. I have found no measurements in the installer menu on the unit that amount to much insight. Also, no one locally sells flow meters that I can plumb in in the meantime.
Any thoughts on what to look for / try next?
Thanks in advance for any advice!