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READ AND SAVE THESE INSTRUCTIONS.
MODEL A24DD
DIRECT DRIVE
WHOLE HOUSE VENTILATORS
LEAVE THIS MANUAL WITH HOMEOWNER
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IMPORTANT SAFETY INSTRUCTIONS WARNING: TO REDUCE THE RISK OF FIRE, ELECTRICAL SHOCK OR INJURY TO PERSONS, OBSERVE THE FOLLOWING: 1. Do not use this fan with any Solid-State Speed Control Device. 2. Use this unit only in the manner intended by the manufacturer. If you have questions, contact the manufacturer. 3. Before servicing or cleaning unit, switch power off at service panel and lock service panel to prevent power from being switched on accidentally. 4. Installation work and electrical wiri
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CEILING INSTALLATION FIG. 1 LOCATING & MOUNTING FAN STEP 1 — The A24DD fan mounts on ceiling joists that are spaced 16” O.C. Fan should be located in center of house, preferably in hallway or corridor. This will allow air to be drawn through all parts of living space. (See Fig. 1.) Determine tenta- tive location of fan and proceed as shown below. STEP 2 — Determine joist direction and locate center joist in ten- tative fan opening. Lightly pencil a rectangular 30 1/2” x 33 1/2” opening on ceilin
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WIRING STEP 6 — PRECAUTIONS: READ CAREFULLY BEFORE WIRING FAN! A. Electrical connections and all wiring should be in accordance with the National Electrical Code and all local codes that may apply. B. To avoid possibility of serious injury or electrical shock, the installer must disconnect electrical circuit supplying power prior to wiring fan. C. CAUTION: Incorrect wiring can cause motor failure and possibly fire. Marley Engineered Products will not accept liability for damage resulting from
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FIG. 8 SPRING ATTACHED SHUTTER INSTALLATION CONNECTOR SPRING HOLDER STEP 10 — Unpack Model A3024 shutter and read instruc- tions included. Note that the first part of the shutter instruc- LOCKING SCREW tions refer to cutting the shutter hole, which you have already done, and so they may be disregarded. Follow the remaining instructions to adjust springs so that shutters open and close freely. (See Fig. 8.) SPRING SHOWN STEP 11 — Mount shutter to joists directly below fan opening UNATTACHED with
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STEP 7 — Nail frame assembly securely in place with 2 x 2 furring strips. See Fig. 17. Put moulding around outside of shutter as shown in Fig. 17. Moulding should be at least 4” wide. Caulk around moulding to provide a water-tight seal. Check shutter again to be sure it opens and closes freely. STEP 8 — Wire fan to 120V power supply and 3-speed control. Follow steps 6 through 9 under wiring section of “CEILING INSTALLATION.” STEP 9 — Fan installation is now complete. With control in “OFF” positi
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REF MODEL REF MODEL NO. DESCRIPTION QTY. USED ON NO. DESCRIPTION QTY. USED ON 15* CAPACITOR, 6 MFD 379V 1 A24DD 1* RETAINING RING 1 ALL CAPACITOR, 12.5 MFD 370V B30DD 2* FAN BLADE ASSEMBLY - 24” 1 A24DD 16* BOOT, CAPACITOR TERMINAL COVER 1 ALL FAN BLADE ASSEMBLY - 30” 1 B30DD 17* FAN HOUSING ASSEMBLY 1 A24DD 3* MOTOR, PSC 120V 1/3 HP 3 SPEED 1 A24DD FAN HOUSING ASSEMBLY B30DD MOTOR, PSC 120V 1/3 HP 3 SPE3D 1 B30DD 18* PANEL, SIDE 4 ALL 4* SCREW, 1/4-20 X 1 TRUSS HEAD 4 ALL 19* SCREW, 10-16 X 1/2
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OPERATING HINTS AND SUGGESTIONS 1. Never operate a wholehouse ventilator with all outside doors and windows closed. Air will be drawn down the chimney, bringing soot into the house. This could also impair flue gas ventilation of furnaces, water heaters, etc. located in the house, possibly drawing fumes into the house. Be sure to open enough doors and windows to provide adequate ventilating air intake. 2. For best results, open windows in OCCUPIED rooms only. This will insure maximum breeze whe
