Ampac SP Series, Installation, Commissioning & Operation

Page: 65 / 112

FireFinder
™
Installation Commissioning & Operation
Page 59
Solenoid & Metron
This input relies on N/O or N/C relay contacts used in conjunction with 22K
Ω
EOL and 4K7
Ω
series
resistors. The type of agent release mechanism and contacts used has to be set in the Programming Menu
for the input to function as per the manufacturers specifications and be in accordance with the relevant
Standard.
Note: The PSW, LPSW & the Interlock Mechanisms are all
mounted onto the top of the cylinder containing the Agent
Termination
Board
+ -
4K7
22K
EOL
Agent
Distribution
4K7
22K EOL
LPSW LOCK
4K7
22K EOL
PSW
+ - + -
MAIN / RESERVE
RELEASE
To TB7
MAIN or
RESERVE
Release
Agent
MAIN RESV
+ -
10K EOL
Solenoid
+ -
TB7
Figure 69: Solenoid, Metron PSW, LPSW and “LOCK” Wiring
LPSW & Lock
These inputs are also monitored and should be wired as shown above
1
2
To Monitoring
Interface / Device
0 V
RL2A
TB3
= MOV
35V
*
*
*
To Sys
Inop Mon
+
-
System Inoperative
1
2
0 V
RL1A
TB4
+27V Current
Limited to1A
Figure 70: Gas Fired Wiring Figure 71: System Inoperative Wiring
As can be seen from above the;
Gas Fired Output can be wired to any interfacing or 1A monitoring circuit that requires a closed relay
contact to indicate a change of state. This could be a relay or a solid state device.
System Inoperative Outputs 27V @ 1A to supply interfacing, signage and aural alarms to indicate the
system has been taken out of service or has developed a fault.
Stage 1, Stage 2
- ( + )
+ ( - )
*
0 V
TB5 = Stage 1
TB6 = Stage 2
= MOV
35V
*
*
+ve
-ve
10K
EOL
1 or 2 Way
Signage
To audible / visual
device or interface
*
Stage 1 or
Stage 2
RL3A
RL5A
RL4B
RL4A
RL6A
Termination Board Relays
RL6B
1
2
3
4
The above circuitry applies to both
TB5 ( Stage 1 ) and TB6 ( Stage 2 )
TB5 / 6
Figure 72: Stage 1 and 2 Wiring