Aprilaire 300 Installation Instructions Manual
Self-contained fan powered whole-house humidifier
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Also See for 300:
- Owner's manual (20 pages) ,
- Installation manual ,
- Installation instructions manual (8 pages)
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Summary of Contents for Aprilaire 300
- Page 1 Model 300 Humidifier Installation Instructions READ AND SAVE THESE INSTRUCTIONS...
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Page 2: Table Of Contents
Excess humidity can cause moisture accumulation which can allow the possibility for mold growth in the home. • Connect Model 300 Series power cord only to 120 VAC, 60Hz. Follow all state and local codes regarding electrical wiring. -
Page 3: Location
. INSTALLATION LOCATION The Model 300 can be located in a utility closet, laundry room, or basement or any space where the unit can be mounted to floor joists and with safe and reliable access to hot water . SOUND Hard duct is recommended for optimum evaporative performance, however, sound coming from the running unit is quieter with the use of flex duct . - Page 4 To install parallel to joist, attach the angle supports to the middle holes in the housing with the #8 x 1/2" screws provided . If distance between joists is less than 14 . 5 ", top mounting holes must be used . Using the hole spacing guide in FIGURE 4, attach the joist brackets in a parallel manner so the bracket edges are approximately 15 inches apart, as shown in FIGURE 2, with the #8 x 1"...
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Page 5: Air Distribution And Evaporative Capacity
. The Model 300 has the capacity to deliver 250 CFM at 0 . 1 inches of water gauge external resistance equivalent to 80 effective feet of duct length . The evaporative capacity at various effective duct lengths are plotted in the graph below . -
Page 6: Plumbing
• Using a section of braided tubing near the unit can reduce water hammer . • A condensate pump can be used if an adequate drain angle cannot be achieved (Aprilaire Part #4856) . HOT WATER DELIVERY TIME THROUGH STANDARD PIPE SIZE 3/4"... -
Page 7: Wiring
WIRING POWER FIGURE 5 – WIRING The Model 300 is prewired internally and equipped with a 120 VAC cord and plug . POWER CORD HUMIDITY CONTROL HUMIDISTAT The Aprilaire® Model 65 Humidifier Control is designed for 24 VAC PCB ASSY to control humidification equipment . - Page 8 AprilairePartners.com P.O. Box 1467 Madison, WI 53701-1467 800.334.6011 F: 608.257.4357 Printed in USA ©2021 Aprilaire – Division of Research Products Corporation 10015433 B2209189B 3.21...
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