Actuators: sy2 -24mft, Caution, Hazard identification – AERCO Belimo F7...HD/HDU Series Valve User Manual
Page 19: Use of feedback is optional, Sy2…5-24mft
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19
Indicates an action or condition that may cause
irreversible damage to the actuator(s) or
associated equipment.
Equipment damage!
Power consumption and input impedance
must be observed.
CAUTION
Indicates a potentially hazardous situation which, if
not avoided, may result in minor or moderate injury.
It may also be used to alert against unsafe practices.
Warnings and Cautions appear at appropriate
sections throughout this manual. Read these carefully.
Hazard Identification
A
B
C
D
E
F
LS3
A-C
(Open Indication)
LS4
D-F
(Closed Indication)
Contact Rating: 5A 250 VAC Max.
SY2…5-24MFT
Observe class 1 and class 2 wiring restrictions.
Transformer sizing = SY actuator draw X 1.25 (safety margin)
(Ex. SY2-24 requires 3.0A x 1.25 = 3.75A,
3.75A X 24 VAC = 90VA Transformer).
INSTALLATION NOTES
Use of feedback is optional.
APPLICATION NOTES
Recommended twisted shielded pair for control wiring.
Ground shielded wire at control panel chassis.
Tape back ground at actuator.
NOTES SY2...5-24MFT
Each actuator should be powered by a single, isolated
control transformer.
┴
1
Y
U5
C1
┴
2
C2
B
A
1
9
8
10
3
2
┴
/-
~/+
Internal Use Only
Internal Use Only
Internal Use Only
Not Used -
Not Used -
Internal Use Only
Internal Use Only
Internal Use Only
Internal Use Only
Power Supply Com
Power Supply Hot
24VAC
Internal Use Only
Feedback
Control Signal (-)
Feedback Signal (+)
Feedback Signal (-)
Control Signal (+)
SYx-24MFT
PC Tool
Service Jack
┴
1
Y
U5
C1
┴
2
C2
B
A
1
9
8
10
3
2
┴
/-
~/+
Internal Use Only
Internal Use Only
Internal Use Only
Not Used -
Control Signal
Not Used -
Internal Use Only
Internal Use Only
Internal Use Only
Internal Use Only
Power Supply Com
Power Supply Hot
24VAC
Internal Use Only
Feedback
Control Signal (-)
Feedback Signal (+)
Feedback Signal (-)
Control Signal (+)
SYx-24MFT
PC Tool
Service Jack
G
PE
G
PE
Actuator B
Actuator A
Address
Adaption
Y1
Y2
Address
Adaption
Y1
Y2
33
35
36
33
35
36
33
35
36
Actuators: SY2...5-24MFT
Wiring for Control Valves
Proportional, Multiple Wiring, 24V
W550-2
0
7/10 - Subject to change. © Belimo Air
controls
(USA
), Inc
.