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TOTALPAC2 Integrated Fire Protection System

Air Supply

FM-072G-0-06 G

Air Supply Section

Preaction, dry valve and other sprinkler systems using air

pressure for supervisory or releasing purposes are provided

with either internal or external supervised air supplies.

Four (4) styles of air supplies are available for the

OTALPAC2 units depending on needs or configurations.

These air supplies are all factory assembled, mounted in the

cabinet and pressure tested. They are all located in the top

part of the cabinet, hung on mounting rails above the valve

trim. Here is the description of those options:

 Air Option "A": (Refer to Figure 1) Used only for the

sprinkler piping network of electrically operated preaction

systems and with dry pipe systems. Air option "A" includes

the air compressor mounted inside the T

OTALPAC2 cabinet

with its supervisory trim and options. Compressors are of the

oiless piston type without reservoir and are factory piped to

the sprinkler piping system riser, all within the T

OTALPAC2

cabinet. They are available in four (4) sizes;

 1/6HP  1/2HP

 1/3HP  1HP.

All the above air compressors have open, single phase

motors with internal thermal protection and can be ordered in

two supply voltages settings:

 120Vac-60Hz or  220Vac-50Hz.

The 120Vac-60Hz is the normal voltage used in Canada and

the United-States while the 220Vac-50Hz is primarily used in

Europe, Middle-East and other countries with 220 volts, 50

cycles current.

 Air Option "B": (Refer to Figure 2) Used only for the

sprinkler piping network of preaction or dry pipe systems,

when an external air supply is provided by others (either

compressor, plant air or dry nitrogen cylinders) and piped to

the air inlet port of the unit. Air option "B" provides an Air

Pressure Maintenance Device (APMD) trim, factory mounted

in the T

OTALPAC2 cabinet.

Note: For the releasing system piping of pneumatically

actuated systems, use air supply type "C" or "D" below

(with an external air compressor).

 Air Option "C": (Refer to Figure 3) Used only for the

pneumatic release piping network of pneumatically operated

preaction or deluge systems. An external air supply has to

be provided by others (either compressor, plant air or dry

nitrogen cylinders) and piped to the air inlet port of the unit.

Air option "C" provides an Air Pressure Maintenance Device

(APMD) trim, factory mounted in the T

OTALPAC2 cabinet.

 Air Option "D": (Refer to Figure 4) Mainly used with

preaction systems protecting refrigerated spaces and

freezers, where a special dry external air supply unit is piped

directly to the system riser inside the freezer itself, as shown

in NFPA-13. Provides only an air supervisory and shut-off

trim.

Ambient temperature at the special external air supply unit

location should not exceed 104

F (40

C). Refer to NFPA

and Factory Mutual Codes & Standards for details on

refrigerated spaces applications. Air option "D" can also be

used when the contractor prefers to provide his own air

supply & regulation trim, mounted outside the T

OTALPAC2

cabinet.

Note: When Air Options "B", "C" or "D" are selected, the air

supply should be provided and installed by the sprinkler

contractor OUTSIDE of the T

OTALPAC2 Cabinet It is NOT

provided with the unit.

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 Maintenance Device (Air Option "B") 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.

Air Compressor selection Table (Gast):

Format (HP)

Free Air @ 40 psi

(CFM)

Maximum

Gallons in

System to Pump

to 40 psi

in 30 Minutes

 1/6

1.0 90

 1/3

2.0 180

 1/2

3.1 300

 1

5.9 600

Note: Selection of the proper air compressor size is the

responsibility of the installing contractor.

2. Connecting the Air Compressor to AC power

(Air option "A" only):

The motor must be protected against short circuit, overload

and excessive temperature rise. Fuses, motor protective

switches and thermal protective switches provide the

necessary protection in these circumstances.

Fuses only serve as a short circuit protection of the motor

(wiring fault), not as protection against overload. Those are

provided and wired by the electrical contractor. An isolation

switch (for location detail, refer to Figure 2 in CONTROLS

Section) is also provided in the T

OTALPAC2 Cabinet and is

factory wired, allowing powering off the air compressor while

some maintenance work on the unit is done, without

disturbing the rest of the system.

Note: The air compressor is separately pre-wired to its own

set of field wiring terminals identified TBB in the

OTALPAC2 controls compartment or junction box,

depending on the enclosure configuration selected. These

terminals must be wired to a separate and properly sized

fuse or circuit breaker, different from the control panel

Summary of content (8 pages)

PAGE 1
Page 1 of 8 TOTALPAC2 Integrated Fire Protection System Air Supply Air Supply Section Preaction, dry valve and other sprinkler systems using air pressure for supervisory or releasing purposes are provided with either internal or external supervised air supplies. Four (4) styles of air supplies are available for the TOTALPAC2 units depending on needs or configurations. These air supplies are all factory assembled, mounted in the cabinet and pressure tested.
PAGE 2
Page 2 of 8 TOTALPAC2® Integrated Fire Protection System Air Supply (when supplied). Observe all applicable codes for wiring of the unit. Connect non-energized AC power to the air compressor. Refer to figure below and FIELD WIRING DIAGRAM. .1 Connect the wire providing in-coming voltage to the terminal TBB #6. .2 Connect the neutral wire to the terminal marked TBB #5. .3 Connect the ground wire to the terminal marked TBB #4. Note: TBB #1, 2 & 3 when system is provided without control panel.
PAGE 3
Page 3 of 8 TOTALPAC2 Integrated Fire Protection System Air Supply increase air pressure or counter-clockwise to decrease pressure. Tighten lock nut. Note: Depending on site conditions, the internal filter of the APMD may need maintenance on a regular basis. Refer to Viking Data Sheet # 127a for more details. Air option "D": .7 To Apply Air Supply: Turn on upstream air supply. Open Bypass valve (E8) by placing handle in line with valve body. .
PAGE 4
Page 4 of 8 TOTALPAC2® Integrated Fire Protection System Air Supply - Ball check to prevent back flow. - Restriction 1/16" (1,59mm) to prevent rapid repressurization of a system. The Viking Model D-2 APMD (E5) regulates and restricts air flow. - The air or nitrogen supply provided to the APMD must be continuous, clean, dry and oil free. - By-pass piping is provided to allow initial pressurization of system piping more rapidly than the restricted air flow through the APMD will allow.
PAGE 5
Page 5 of 8 TOTALPAC2 Integrated Fire Protection System Air Supply Figure 1 – Air Option "A" (Cabinet mounted air compressor) Air Option Components: E1 E2 E3 E4 E5 E6 E7 E8 E9 E10 Air compressor Air compressor "ON/OFF" pressure switch System air pressure gauge Air supervisory pressure switch N/A N/A N/A N/A Float check valve Soft-seat check valve E11 E12 E13 E14 E15 Air compressor check valve Air option drain valve N/A N/A Compressor isolating switch (not shown) Optional Components: (see Air Supply Op
PAGE 6
Page 6 of 8 TOTALPAC2® Integrated Fire Protection System Air Supply Figure 2 – Air Option "B" (APMD without air compressor) Note: The external air supply must be restricted to insure that it cannot replace air as fast as it escapes when a releasing device or sprinkler operates. When the system is put in service, open the input valve (E6) first.
PAGE 7
Page 7 of 8 TOTALPAC2 Integrated Fire Protection System Air Supply Figure 3 – Air Option "C" (APMD for Pilot Line release system only) Note: The external air supply must be restricted to insure that it cannot replace air as fast as it escapes when a releasing device or sprinkler operates. When the system is put in service, open the input valve (E6) first.
PAGE 8
Page 8 of 8 TOTALPAC2® Integrated Fire Protection System Air Supply Figure 4 – Air Option "D" (Air supply connection only for external air supply ) Note: The external air supply must be restricted to insure that it cannot replace air as fast as it escapes when a releasing device or sprinkler operates.