Electric 
Actuation 
The  Electric  Actuation  Trim  forms  a 
part  of  the  laboratory  approval of  the 
DV-5 Valves and is necessary for their 
proper operation. 
The Electric Actuation Trim is required 
for electric operation of the DV-5 Valve 
by  a  detection  system  consisting  of 
electrical  devices  such  as  heat  sen-
sitive  thermostats,  smoke  detectors, 
and/or electric manual pull stations. 
Installation dimensions are provided in 
Figure 19 (Page 26). 
The  Solenoid  Valve  provided  in  the 
valve trim (P/N 52-287-1-124 described 
in TFP2180) is rated as follows: 
•  Pressure: 17,2 bar 
•  Voltage: 24 VDC 
•  Power Consumption: 22 Watts 
•  Current Draw: 0,83 Amps 
NOTES 
Approval  by  VdS  and  LPCB  is 
contin¬gent on the use of the Solenoid 
Valve provided with the valve trim. VdS 
and LPCB only approve solenoid valves 
for  use  in  non-hazardous  locations.  
Consult with the applicable  standards 
of  the  Approval  agency  regarding  in-
stallation  criteria pertaining to  electric 
actuation circuitry. 
 The Electric Actuation Trim is provided  
with  a  Model  ASV-1  Automatic  Shut-
Off  Valve;  consequently,  the  release 
circuit of the releasing panel need only  
provide  the  standard  ten  minutes  of 
alarm  condition  intended  to  energize  
the  Solenoid  Valve to open.  After  the 
ten  minute  duration,  at  which  point 
should the Solenoid Valve become de-
energized  and  close  (especially  while 
operating under battery back-up), the 
Automatic  Shut-Off  Valve  will  have 
already  automatically  closed,  there-
by  preventing  the  DV-5  Diaphragm 
Chamber  from  becoming  re-pressur-
ized,  and  preventing  an  inadvertent 
closing of the DV-5 during a fire event.  
Diaphragm Supply Strainer
Diaphragm Supply Connection
Water Motor Alarm Connection
Solenoid Valve
DV-5 Valve
Waterflow Switch
Stop Valve
Automatic Drain Valve
Alarm Test Valve
System Drain Valve
(Not used)
Diaphragm Gauge
System Gauge
Water Supply Gauge
Diaphragm Supply Valve
Automatic Shut-Off Valve
Manual Control Station
Alarm Control Valve
Description
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Item
FIGURE 6 
ELECTRIC ACTUATION 
(Refer to Figure 15 thru 18 for specific Bills of Materials)
Page 8 of 28   TFP1338