Bryant MACA instruction manual Safety Considerations, Introduction, Ðair Cleaner Pressure Drop

installation and	MACA
operation instructions

MECHANICAL

AIR CLEANER

NOTE: Read the entire instruction manual before starting the installation.

SAFETY CONSIDERATIONS

Installation and service of heating and air conditioning equipment can be hazardous due to system pressure and gas and electrical components. Only trained and qualified personnel should install, repair, or service heating and air conditioning equipment.

Untrained personnel can perform basic maintenance functions such as cleaning and replacing air filters. All other operations must be performed by trained service personnel. When working on heating and air conditioning equipment, observe precautions in the literature, tags, and labels attached to or shipped with the unit and other safety precautions that may apply.

Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thoroughly and follow all warning or cautions attached to the unit. Consult local building codes and National Electrical Code (NEC) for special require- ments.

It is important to recognize safety information. This is the safety-alert symbol . When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury.

Understand the signal words DANGER, WARNING, and CAU- TION. These words are used with the safety-alert symbol. DAN- GER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage.

INTRODUCTION

The Model MACA Efficient Mechanical Air Cleaner is designed for installation in the return-air duct system of any forced-air heating and/or cooling system. The model MACA Mechanical Air Cleaners are available in three sizes, 1200, 1400, and 2000 CFM.

Cancels: New	II MACA-12-1
	3-98

A98152

Fig. 1ÐModel MACA Mechanical Air Cleaner

TABLE 1ÐAIR CLEANER PRESSURE DROP

SIZE	12		14	20
Airflow		Resistance (In. wc)
(CFM)
600	0.055		0.045	0.04
800	0.08		0.06	0.05
1000	0.12		0.115	0.09
1200	0.16		0.16	0.115
1400	Ð		0.23	0.15
1600	Ð		Ð	0.18
1800	Ð		Ð	0.22
2000	Ð		Ð	0.27

The Model MACA is a mechanical air cleaner incorporating special pleated filter media designed to remove dirt, dust, pollen and other microscopic particles from the air passing through it. The pleats provide an exceptionally large filtering face area in a very compact space which allows maximum dirt holding capacities with minimum air flow resistance. (See Table 1.)

INSTALLATION

I.INSTALL AIR CLEANER CABINET IN RETURN-AIR SYSTEM

CAUTION: Turn OFF the electrical supply to the fur- nace or air handler before beginning installation.

1.Remove and discard existing furnace or air handler filter(s).

2.Referring to Fig. 2 and 3 for air cleaner dimensions and typical installations, determine best installation location of air cleaner.

Ð1Ð

NOTE: A 26-in. clearance must be allowed for removal of the media assembly from the air cleaner cabinet.

3.Using standard practices, remove a section of return-air duct to allow installation of air cleaner cabinet.

4.Install air cleaner in duct opening. (Use a transition if openings are different).

5.Mounting holes are provided for duct work attachment. (See Fig. 2). If adjoining duct work is flanged, install screws so that their heads are inside cabinet to prevent damage to filter during removal and installation.

6.Remove media filter from plastic bag and place media filter in cabinet. Directional arrows on filter cartridge must point in direction of air flow.

7.After unit has been secured, seal seams air tight with duct tape or caulking.

8.Reinstall cabinet front panel door assembly.