Submittal Sheet

MAX. DAMPER POWER INPUT PER ZONE 100 VA @ 24 VAC
DAMPER FUSE SIZE 5 A fast acting (spare supplied)
CONTROL INPUT CURRENT DRAW (ZONE A & B) 50 mA @ 24 VAC
MAX. NO. OF APRILAIRE DAMPERS PER ZONE 10
MAX. WIRE SIZE 18 AWG
APPLICATION TEMPERATURE / RH 140˚F / 90% RH (non-condensing)
MODEL 8028 - POWER DISTRIBUTION PANEL SPECIFICATIONS
Model 8028 Power Distribution Panel
• Simplifies installation when the number of dampers exceeds
the fuse rating of the zone panel
• Makes troubleshooting easier
• Gives a professional and clean appearance to your installation
ZONE A
ZONE B
SINGLE
SINGLE
SUPPLY
SEPARATE
SUPPLIES
ZONE A - 5 AMP
ZONE B - 5 AMP
SPARE FUSE - 5 AMP
54 32 1
ZONE B
DAMPERS
ZONE A
DAMPERS
12345
120
VAC
24
VAC
ZONE A DAMPER
TRANSFORMER
120
VAC
24
VAC
ZONE B DAMPER
TRANSFORMER
POWER
A
POWER
B
8028 DAMPER POWER
DISTRIBUTION PANEL
ZONE 1 DAMPERS
(“home run” wiring)
DAMPER TRANSFORMER
SIZING
TRANSFORMER MAX. NO. OF
VA RATING
DAMPERS
40 VA 4
50 VA 5
75 VA 7
100 VA 10
SIZE FOR TOTAL NUMBER
OF DAMPERS WIRED TO
ZONE A DAMPER INPUTS
SIZE FOR TOTAL NUMBER
OF DAMPERS WIRED TO
ZONE B DAMPER INPUTS
ZA
ZB
ZONE 2
DAMPERS
DAMPER
POWER
ZONE 1
DAMPER
ZONE 2
DAMPER
ZONE 3
DAMPER
ZONE 4
DAMPER
COM NC NOCOM NC NOCOM NC NOCOM NC NO
ZONE PANEL
C
NO
C
NO
(“daisy chain” wiring)
DAMPER
MOTOR
IMPORTANT
The Model 8028 requires a Zoned Comfort
Control Panel in all zoning applications.
DAMPER SIZE 4” 5” 6” 7” 8” 10”
CONTROLLED PRESSURE RELIEF 8 20 25 39 56 81
CLOSED 777666
BYPASS AIRFLOW (CFM) AT 0.2” WC SUPPLY SIDE PRESSURE
P.O. Box 1467 • Madison, WI 53701-1467 • Phone: [phone] • Fax: [phone] • www.aprilairepartners.com
Form No. 5038 01.12
241805
Printed in U.S.A.
© 2012 Aprilaire – A division of Research Products Corporation
APRILAIRE RESERVES THE RIGHT TO CHANGE SPECIFICATIONS WITHOUT NOTICE.