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Search: Posts Made By: jeff5may
Forum: Geothermal & Heat Pumps 02-16-14, 02:07 PM
Replies: 37
Views: 42,764
Posted By jeff5may
AC and SERVICETECH, Yee haw! You're both...

AC and SERVICETECH,

Yee haw! You're both right.

Because heat from an oil fired heating duct can be uncomfortably warm, but does that mean that a heat pump heated house with the same inside air...
Forum: Geothermal & Heat Pumps 02-15-14, 08:18 AM
Replies: 37
Views: 42,764
Posted By jeff5may
This is in reference to the indoor coil in an air...

This is in reference to the indoor coil in an air handler. With a heat pump, oversizing the indoor coil too much will kill your supply air temperature. Instead of 120 degF air coming out of...
Forum: Geothermal & Heat Pumps 12-20-13, 06:51 PM
Replies: 37
Views: 42,764
Posted By jeff5may
AC, In the series-connected circuit, I...

AC,

In the series-connected circuit, I agree that there is more friction present. With a cap-tube metered evaporator, the flow will actually decrease due to this added frction and pressure drop,...
Forum: Geothermal & Heat Pumps 12-20-13, 03:26 PM
Replies: 37
Views: 42,764
Posted By jeff5may
In the parallel arrangement, the units can still...

In the parallel arrangement, the units can still be balanced against each other to equalize refrigerant flow. They will tend to frost up simultaneously; as the more efficient evap frosts up, it...
Forum: Geothermal & Heat Pumps 12-20-13, 03:10 PM
Replies: 37
Views: 42,764
Posted By jeff5may
Both Daox and Stevehull make good points here...

Both Daox and Stevehull make good points here concerning flow. Parallel flow is the way you want to go with the evaporator side. Assuming the same outdoor temperature at the two units, the flow will...
Forum: Geothermal & Heat Pumps 12-20-13, 11:34 AM
Replies: 37
Views: 42,764
Posted By jeff5may
Yes, a larger evaporator will make a heat pump...

Yes, a larger evaporator will make a heat pump more efficient. With more surface area for heat transfer, and the same compressor being used, the compressor will move more heat due to the lower...
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