8: Connecting Ac Power - Honeywell Farenhyt ECS Series Manual

Emergency communication system
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Installing the ECS-50W
FACP
See Section 4.11 for information on setting SBUS addresses.
4.4.8 Connecting AC Power
The AC inputs are rated as 120 VAC, 60 Hz or 240 VAC, 50/60 Hz (transformer P/N 115061 or 29201).
To install the AC transformer into the ECS-50W cabinet follow these steps:
1.
Open the cabinet door.
2.
To access cabinet interior, open the dead-front panel by removing the upper screw and the mid-door retaining screw.
3.
Mount the transformer onto the threaded cabinet transformer mounting studs using the supplied locking hex nuts as shown in
Figure 4.28.
4.
Connect AC power to the transformer as shown in Figure 4.29.
ECS Series Manual — P/N 151455:H 2/15/2022
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SBU S
ECS-50W
Figure 4.27 Connecting ECS-50W Amplifiers to the SBUS
threaded
mounting studs
Figure 4.28 Transformer Mounting
supervised,
power-limited
Class B
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O U T
ECS-50W
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A
B
OUT
IN
SBUS
C IR C U IT 4
C IR C U IT 3
C IR C U IT 2
C IR C U IT 1
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IN
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O U T
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IN
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O U T
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IN
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O U T
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IN
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O U T
ECS Device Installation
To next
ECS-50W
+
+
A
B
IN
SB U S
29

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