AERCO Belimo F7...HD/HDU Series Valve - Manual (Page 18)

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
18
W550
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).
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
33
33
INSTALLATION NOTES
24 VAC Transformer
Line
Volts
G Ground
4 Power Supply Com
5 Power Supply Hot
6 Control Signal (-)
7 Control Signal (+)
8 Internal Use Only
9 Internal Use Only
10 Internal Use Only
11 Feedback (-)
12 Feedback (+)
Feedback (B)
G Ground
4 Power Supply Com
5 Power Supply Hot
6 Control Signal (-)
7 Control Signal (+)
8 Internal Use Only
9 Internal Use Only
10 Internal Use Only
11 Feedback (-)
12 Feedback (+)
SY1 -24P
24 VAC Transformer
Line
Volts
Feedback (A) Control Signal
Actuator B
Actuator A
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.
SY1 -24P
A
B
C
E
F
Contact Rating: 5A 125 VAC Max.
3A 250 VAC Max.
A-B (Open Indication)
LS4
LS3
A-E (Closed Indication)
A
B
C
E
F
Contact Rating: 5A 125 VAC Max.
3A 250 VAC Max.
A-B (Open Indication)
LS4
LS3
A-E (Closed Indication)
NOTES SY1-24P
Each actuator should be powered by a single, isolated
control transformer.
s
"–" wiring to a common is prohibited. Terminals 4 and 6 need to
be wired separately otherwise irreversible damage will occur.
s
G
G
35
36
33
35
36
35
36
Actuators: SY1-24P
Wiring for Control Valves
Proportional, 24V
0
7/10 - Subject to change. © Belimo Air
controls (USA), Inc.