FireFlex TOTALPAC2 - Skid Air Supply Option

T OTAL P AC 2 Page 11 of 14
T OTAL P AC 2 Integrated Fire Protection System
Air Supply
FM-086G-0-43E
2- Skid Air Supply Option
When TotalPac2 units are provided in skid form, the air
supply is provided by the installing contractor. Preaction, dry
valve and other sprinkler systems skids using air pressure for
supervisory or releasing purposes are all provided without
the external supervised air supplies.
The system trim includes only a connection for the air supply
including a ball valve, a pressure switch and a pressure
gauge, adapted to the particular layout ordered. When an air
pressure maintenance device is required, it shall also be
provided and installed by the contractor along with his air
supply.
The skid air supply trim is factory assembled, mounted in the
system trim and pressure tested.
អ
អអ
អ Skid Air Supply for sprinklers: (Refer to Figure 1)
Provides only an air supervisory and shut-off trim. Used
with the contractor provided air supply & regulation trim,
mounted separate from the T OTAL P AC 2 trim skid.
អ
អអ
អ Skid Air Supply for pilot line: (Refer to Figure 2) Very
similar to the air supply for sprinklers, it provides only an
air supervisory and shut-off trim. Used with the contractor
provided air supply & regulation trim, mounted separate
from the T OTAL P AC 2 trim skid.
2.1 Air supply design and selection:
The air supply compressor should be sized to
automatically establish the total required air pressure in 30
minutes. External air supply should be provided with an air
pressure maintenance device to regulate and restrict the
flow of supervisory air into the sprinkler system piping.
Note: External air supply MUST always be restricted to
insure that the automatic air supply cannot replace air as
fast as it escapes when a sprinkler operates.
WARNING! Pressures other than the factory pressure
settings may affect the operation of the system.
2.2 Operation
.1 To Apply Air Supply:
Turn on upstream air supply. Open Air shut-off
valve (E14) by placing handle in line with valve body.
.2 To Close Air Supply:
Close Air shut-off valve (E14) (handle crossways to valve
body).
3. Maintenance and inspection:
- The air or nitrogen supply provided must be continuous,
clean, dry and oil free.
- Determine the appropriate pressure to be maintained in
the system. Refer to Table 1 or 2
Important: Advise local authorities of the necessary work
over the fire protection equipment. In order to avoid
accidental water release, it is considered good practice to
completely close the main water inlet valve while doing the
maintenance work.