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12x12x1 filter should the arrow point toward the ceiling or the floor

I have an hvac in the attic. The return is in my bedroom ceiling. Do I install the 3m filter with the arrow pointed toward the ceiling or toward the floor? Thank you, Diane from Virginia

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Toward the ceiling

Posted on May 17, 2009

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The half of my house where the furnace is is hot. So there is hot air coming from the vents. (some of them). Half of the kitchen living room bathroom and 3 bedrooms and the hallway are blowing cold air.


where is the duct work located? In an attic, crawlspace? It sounds as if part of the system is disconnected. Are the outlets at the floor or in the ceiling? Is the duct work insulated? Can you take actual air temperatures at the outlets?

Feb 01, 2015 | Heating & Cooling

2 Answers

How large does the area of the space required to service an HVAC or water heating unit in the attic have to be?


There is no pat answer for that. There are many different sizes and the space requirements are usually included with the installation instructions, The seller should be able to provide the specifications to you so that you can compare different units.before you buy.

Nov 07, 2014 | Heating & Cooling

1 Answer

How do I replace a filter on my 1975 Carrier central A/C?


THE FILTER IS THE AIR FILTER . IN THE RETURN AIR GRILL EITHER IN FLOOR OR IN THE WALL / SOME ARE INSTALLED IN THE UNIT IN THE AIR HANDLER COULD BE INSIDE A CLOSET OR ATTIC OR UNDER FLOOR / FIND AND CHANGE IT . IT WILL BE WHERE THE AIR IS PULLED INTO UNIT ON RETURN SIDE AS I SAID SOME IN FLOOR GRILLS , SOME IN WALL GRILLS . SOME IN CEILING GRILLS . JUST TAKE OUT AND GOTO LOWES OR hd GET SAME SIZE AND REPLACE

Aug 18, 2014 | Heating & Cooling

1 Answer

Condensation dripping from ceiling in all electric home with no basement


The wall of the daughter's bedroom is NOT insulated. Moisture from normal activities (showering and cooking) within the house are causing the realtive humidity to be above 50%. When that moisture enters the wall or ceiling, the temperature drops below the dewpoint and condenses out. The moisture that condenses makes a nice environment for the growth of black mold which is highly toxic. The mold will spread by airborne spores. If you have return air ducts for your HVAC system in the room, the spores might be dispersed throughout the entire house, depending on how good you HVAC filter is. Note that if you have a swamp cooler on the roof, it could be leaking water through the ceiling and causing the problem.

You need to immediately move you daughter to another room and remediate the situation -- tear out all the drywall and anything that is damp or has signs of visible mold. Get the humidity in ther house below 50% with a dehumidifier. I would recommend the Winix 50-pint model (refer to link below). This will condition 1500 square feet, which is a lot, but you will need one on each floor.

Amazon com Home Kitchen

Jan 29, 2014 | Kirby Shampooer Shampoo Hose G3 Ultimate...

1 Answer

I have 2 Carrier units, one for downstairs and another for upstairs. I think the blower unit must be in the attic. Do I have to go up into the attic to replace any filters? Do I need 2 EZ Flex FIlter...


You may or may not have to go into attic, depends if an additional filter system is installed. May have filter grille's install in ceiling, or wall. If no filter's on the interior, then there should be in the furnance or filter rack in the attic. Filters should be used for no more than 3 months without changing or cleaning if washable.

Aug 26, 2011 | Carrier 38CKC036 Air Conditioner

2 Answers

I do not get airflow to the floor from the heater / ac


The MODE button (symbol of little man leaning back with an arrow pointing toward him) controls the air flow options.
You can push through 4 options
1. Panel flow(instrument panel and rear vents) man with an arrow pointing toward him.
2. Bi-Level (Floor/instrumental panel/rear vents) man with arrow pointing toward him and one pointing to the floor.
3.Floor (floor vents) man with arrow pointing to the floor.
4.Floor/Windshield(Just that) man with windshield symbol and arrow pointing toward floor.

I hope this helps!

Dec 16, 2010 | 2004 Toyota Avalon

1 Answer

Where i can found the ac filter, bacause i want to replace. tnks


AIR FILTER
DESCRIPTION

A dust and odor air filter is standard equipment on
models equipped with the three zone temperature
control systems. The filter element is the
same size as the front air conditioner evaporator to
ensure ample filtering capacity. A removable door on
the bottom of the front HVAC housing below the
glove box provides easy access to the filter element
for replacement. The filter should be checked and
replaced at least once every 24,000 km (15,000 miles)
and checked if heater-A/C system performance seems
lower than expected.
REMOVAL
(1) Locate the air filter door on the bottom of the
lower HVAC housing just outboard of the passenger
side of the instrument panel center stack.
(2) Slide the air filter door latch toward the rear of
the vehicle until it engages the opened stop on the
door.
(3) Pull the air filter door straight downward to
disengage it from the air filter opening of the lower
HVAC housing.
(4) Use your fingers to reach through the air filter
opening of the lower HVAC housing far enough to
grasp the air filter.
(5) Pull the air filter straight down and out of the
HVAC housing.
INSTALLATION
(1) Note the “Airflow” directional arrow imprinted
on the foam seal around the frame of the air filter.
This arrow should always be oriented towards the
center of the vehicle.
(2) With the air filter “Airflow” arrow properly oriented,
carefully slide the filter fully upward into the
HVAC housing through the air filter opening.
(3) With the latch still positioned against its
opened stop, reinstall the air filter door onto the
lower HVAC housing air filter opening.
(4) Slide the air filter door latch toward the front
of the vehicle until it hits the closed stop on the door.

Good luck

Dec 22, 2009 | 2004 Dodge Caravan

1 Answer

Does my Heil air handler have a air filter or just coils??


The Air filter should be located under a grid in the ceiling somewhere in the house. That is where the air in taken and returned after it passes thru the air handler in the attic. There has to be an access to the attic in order to service the air handler if needed. That is Code. Your system, I presume, is a "split system" with the condensing unit outside and he air handler in the attic...

May 30, 2009 | Heating & Cooling

1 Answer

Ac unit cools entire home except for one bedroom


The issue may not be confined to airflow alone. An air conditioner makes us more comfortable through two basic rules of physics.
It removes sensible heat (the temperature you feel) and removes moisture from the air. Dry air enhances the bodies own cooling system allowing perspiration to evaporate more quickly which speeds the removal of heat from the body, this is why 85 and dry feels more comfortable than 72 moist degrees.

to ensure the ducts are balanced properly one must use an anemometer which is a tool used to calculate airflow by the pro's. Being that most homeowners do not have access to one there are some good observations to make using a pocket thermometer and your own senses:
  1. Ensure the guest room vent is the same size as the master bedroom.
  2. Ensure the supply duct for the suspect vent is the same diameter and approximate distance from the main plenum (where the ducts originate) as the master bedroom.
  3. Is the air emminating from the suspect vent approximately the same in volume as the master bedroom (does it feel and sound the same).
  4. The issue exists even if the guest bedroom door is left open.
  5. The air temperature measured at the vents is within 3-5 degrees of each other.
If 1 - 4 are true check for #5, if # 5 is false make sure the suspect ducting is insulated or covered well by attic insulation.

If 1, 2, 3 or 4 are false: Ensure the following:
  • The guest room ducting does not have a damper hidden under insulation or duct wrap.
  • The duct has not been crushed or restricted.
NOTE: internaly insulated ducts can be restricted on the inside by fallen insulation while appearing normal on the outside.

If #5 is false (issue goes away if the door is left open) the door may need to be cut off a bit more at the bottom or a grill installed to allow the air coming into the room a place to go.

If none of the above reveal the culprit concider the room itelf, it may have a higher heat load than the others.
A higher heat load may be due to dislodged, compacted and or wet insulation in the walls or attic, feel the walls and ceilings with your hands, how does it compare with cooler rooms?
If the walls and ceiling feel about the same and the tests above did not expose an issue its time to call the contractor back in, make sure the static pressure is checked in each duct a foot or so downstream of the the plenum and again just upstream of the vent. A duct with air pressure higher or lower when compared with the others could mean a variety of issues with the duct or where it connects to the plenum.

May 26, 2009 | Heating & Cooling

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