Lincoln Electric P709 GUARDIAN CONTROL SOLUTIONS - Manual (Page 26)

A-19 INSTALLATION
GUARDIAN CONTROL™ SOLUTIONS
A-19
SLIDING VALVES
DESCRIPTION
When the filter system is in operation, the sliding
valves are open. In the event of an alarm signal, power
failure or when the fan is switched off, the valves are
closed. Correct closing of the valves is monitored by a
reed switch contact.
In case of fire, the sliding valves close automatically.
This cuts off oxygen to the fire. This will also minimize
risk of escalation and spreading of smoke.
COMPONENTS: (See Figure A.11)
A. Sliding valves incl. 5/2 solenoid valve
B. Connection flange (2)
C. Quick connect coupling (2)
D. Junction box
E. Cable gland/clamp (3)
F. Reed contact (See Figure A.12 for more details)
LOCATION
• 1st sliding valve: in filter inlet duct as close to the fil-
ter bank as possible.
• 2nd sliding valve: in filter outlet duct as close to the
filter bank as possible.
• Mounted in vertical position.
It is strongly recommended that the sliding valves be
installed indoors. If they are installed outside, however,
ensure that they are protected from rain and snow.
Avoid installation where compressed air can cool down
below its dew point to prevent damage to the pneu-
matics.
NOTE: Allow sufficient space above the duct for the
sliding valves to fully open;
• SV-10: + 14 in.
• SV-12: + 16 in.
• SV-16: + 20 in.
• SV-20: + 26 in.
• SV-24: + 32 in.
The sliding valves can be mounted:
• During installation of a new ductwork
• In an existing duct
To mount the sliding valves, proceed as follows.
Sliding valve type SV-10:
See Figure A.12.
1. Place the bracket (B) over the cylinder.
2. Place the reed contact (A) in the slit of the bracket.
All other sliding valves:
See Figure A.13.
1. Place the reed contact (A) in the slit of the cylinder.
2. Attach it by fastening the screw.
See Figure A.14, for steps 3-6.
3. In case of installation in an existing duct: cut away a
piece of the existing duct as shown in the table
below.
FIGURE A.11
C
A
D
E
F
B
Not installing the proper supports for
the Sliding Valves can cause severe
injury.
Ensure that the ductwork can sup-
port the weight of the sliding valves.
It is recommended to use duct sup-
ports.
-----------------------------------------------------------------------
WARNING
FIGURE A.13
A
FIGURE A.12
A
B