WHAT FILTERS TO USE?
WHAT MICRONS SHOULD BE FILTERED OUT TO PROTECT A HEAT PUMP?
Air handlers for heat pumps do not do well with wood dust - gums up the coil, affects the system, can invalidate warranty on heat pump system. Need to isolate workshop and wood dust from where the air handler is.
Ok, seal off the workshop. But if dust some got through to the part of the basement where the air handler is in, and you had the cold air return ducts sealed, the only way the wood duct can get to the coil is through the filter. So what is the best filte for the heat pump?
FILTRATION REQUIRED
I think my oneida dust filter goes down to 1 micron but then there is the loose dust in the shop. WHAT MICRONS SHOULD BE FILTERED OUT TO PROTECT A HEAT PUMP?
FILTRATON OPTIONS
50% of people want a disposable filter, 50% want a cleanable filter. Electrostatic filters block airflow too much. MERV 10 max suggested for heat pumps. The higer the MERV number, the more is filtered out.
Choices seem to be:
1. Use the 1" rack in the air handler and a standard media filter. Example is
American Air Filter Strata Density. DISPOSABLE MEDIA FILTER.
This comes in 1" The AAF StrateDensity data sheet gives no info on what microns are filtered out. No MERV rating, but maybe performance resistance data covers that off, I dont know.
2. $1000 American Standard AccuClean or Trane Clean Effects (same thing)
3. Westinghouse Nordyne high efficiency media retrofit air cleaner. Retrofit rack into the cold air return, just like the $1000 solutions, and 5 14" thick pleated media filter.
Example: Westinghouse
http://www.westinghousehvac.com/West...er-p/media.htm
but his email called it a
NORDYNE High Effi ciency Media Retrofi t
Air Cleaner removes airborne particles down to
0.3 micron.
Comments please on:
What wood dust particles sizes harm a heat pump and need to be taken out?
What is the most effecive way to do this, with least work and cost?
Thanks!