Maintenance, Lubrication | Johnson Controls 820900-UUM-A-1011

820900-UUM-A-1011

COOLING CONSERVATION

To comfortably cool your home, your heat pump must remove both heat and humidity. Don’t turn your system off even though you will be away all day. On a hot day, your system may have to operate between 8 and 12 hours to reduce the temperature in your home to a nor- mal comfort level.

Keep windows closed after sundown. While the out- door temperature at night may be lower than indoors, the air is generally loaded with moisture which is soaked up by furniture, carpets and fabrics. This mois- ture must be removed when you restart your system.

The hotter the outside temperature, the greater the load on your system. Therefore do not be alarmed when your system continues to run after the sun has set on a hot day. Heat is stored in your outside walls during the day and will continue to flow into your home for several hours after sunset.

Use your kitchen exhaust fan when cooking. One sur- face burner on “High” requires one ton of cooling. Turn on your bathroom exhaust fan while showering to remove humidity. You can also help your system in the summer by closing drapes or blinds and lowering awnings on windows that get direct sunlight.

MAINTENANCE

Prior to any of the following maintenance pro- cedures, shut off all power to the unit.

In order to insure long and trouble free service from your system, we recommend periodic inspection, cleaning, lubrication and adjustment by your installing Dealer/Contractor. Be sure to ask about this service.

For those buildings with in-house maintenance, please follow the instructions listed below to care for your sys- tem.

LUBRICATION

Both the indoor blower motor and outdoor fan motor are permanently lubricated and require no mainte- nance.

FILTER CARE

Filters must always be used and must be kept clean. When filters become dirt laden, insufficient air will be

delivered by the blower, decreasing your units effi- ciency and increasing operating costs and wear-and- tear on the unit and controls.

AIR FILTERS

3 THRU 6 TON

Units 3-6 Ton are shipped with 1" throwaway type air filters. The filter racks on 3-6 ton units will receive 1" or 2" filters. Fil- ters can also be installed in the building at a suitable return air location if an economizer or outside air accessory is not used. Filters must always be used. They should be inspected once a month and thoroughly cleaned or replaced if it appears they are beginning to accumulate excessive dirt. Fil- ter sizes and quantities are shown in the following table.

	THROWAWAY	QUANTITY
	THROWAWAY	PER
	FILTER	PER
	FILTER	UNIT
	SIZES	UNIT
	SIZES	(Nom, Tons)
	(Inches)	(Nom, Tons)

		3 - 6 TON
		3 - 6 TON

	14 x 20	2

	14 x 25	1

To install the filters, remove the filter access panel located to the left of the condensate drain connection as shown in Fig- ure 1.

NOTE: Filters must be installed with “Air Flow” arrows point- ing inward -- toward the indoor coil. In the event the spacers in the filter section are removed, they must be reinstalled in their original position.

Slide filters all the way into the filter racks provided. When more than one filter in a filter rack is required, they must butt each other when sliding into position. Replace the filter access panel.

(2)14" X 20"

FILTERS

(1)14" X 25"

FILTERS

3 - 6 TON

FIGURE 1 - END VIEW LESS FILTER ACCESS

PANEL 3 THRU 6 TON

Johnson Controls Unitary Products