| Вид документа | Прикладна нотатка |
|---|---|
| Виробник | JCI |
| Код документа | m9000-applications-on-off-floating-return-air-exhaust |
| Група обладнання | M9000 Applications On-Off/Floating Return Air/Exhaust |
| Сторінок | 2 |
| Мова документа | англійська |
| Розмір файлу | 0.1 МБ |
Текст документа
FANs 268.1, 121
Application Note M9000
Issue Date 0718
APPLICATION NOTE
M9000 Applications
On-Off/Floating Return Air/Exhaust
This application for the M9200 Series Electric Motor IMPORTANT: M9000 Series actuators have speed
Actuator provides control for exhaust and return air variations in response to loading,
dampers. It can be used with on-off/floating controllers therefore, consider the installed
providing the proper positioning for the dampers. speed of the damper and actuator(s)
Mount the actuator to the preferred driving blade. to avoid possible pressure related
Obtain the system diagrams for controller installation to problems.
verify proper terminals for each actuator.
M92xx
1 2 3 4
M92x-AGx-2
1 2 3 4
24
VAC
0 90
90 0
30 60
60 30
M9200 M91xx-AGx-2
1 2 3
0
30
60
90
M9100 or M9300 COM CW CCW
On-Off/Floating
Controller
Figure 2: Multiple Actuator Wiring from
Single Output
Note: Incremental applications could have false
0 90
90 0
30 60
60 30
AS-UNT
operation if used in parallel with devices such
BO
M9200 as the M9104 actuator.
! CAUTION: Equipment Damage Hazard.
Figure 1: Return Air/Exhaust Using M9200 After a power failure, drive all
for Outdoor Air actuators to a home or known
position before starting the fan,
Return-to-normal actuators are recommended for use when operating a system or air
with outdoor air dampers. handling unit with both spring
When selecting actuators for an air handling unit return and non-spring return
economizer section, consider the speed of the actuators on an economizer
actuators involved and possible pressure related section. If both the return air and
problems. outdoor air dampers are closed
when the fan is started, damage
to the ducts, dampers, or fan may
occur.
© 2018 Johnson Controls, Inc. 1
Code No. LIT-2681063
Building Technologies & Solutions
507 E. Michigan Street
Milwaukee, WI 53201
Printed in U.S.A.
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