Tyco DV-5A User manual

DV-5aAutomatic Water Control Valve
Double Interlock Preaction Fire Protection Systems
1-1/2 Inch to 8 Inch (DN40 to DN200)
Page 1 of 28 MARCH 2020 TFP1450
Worldwide
Contacts
www.tyco-fire.com
IMPORTANT
Refer to Technical Data Sheet
TFP2300 for warnings pertaining to
regulatory and health information.
General
Description
The TYCO DV-5aAutomatic Water
Control Valves are diaphragm type
valves that can be used in double inter-
lock preaction fire protection systems.
When properly trimmed, the double
seat design of the DV-5aValve also
provides actuation of fire alarms upon
system operation.
The diaphragm style design of the
DV-5aValve allows external resetting,
providing for easy resetting of a deluge
system without having to open a valve
handhole cover to manually reposition
a clapper and/or latch mechanism.
Simply re-pressurizing the diaphragm
chamber resets the valve.
The DV-5afeatures internal and exter-
nal coating of the valve to provide
corrosion resistance. The external cor-
rosion resistance of the epoxy coating
permits the use of the DV-5ain cor-
rosive atmospheres associated with
many types of industrial processing
plants and outdoor installations.
The DV-5aValves are offered with the
DV-5aValve and separately ordered
semi-assembled trim shown in Figures
6 and 7, or, for ease of installation, with
DV-5aValve completely trimmed with or
without a System Main Control Valve.
Double interlock preaction systems are
designed for use in applications, such
as refrigerated areas, requiring the
maximum degree of protection against
inadvertent flooding of the sprinkler
system piping. In order for a double
interlock preaction system to automat-
ically activate, two independent events
must occur. First, the electric detection
system must operate, and secondly,
an automatic sprinkler on the system
piping must operate. Typically, the
electric detection system is designed to
operate before any automatic sprinkler.
Operation of just the electric detection,
or just the opening of a sprinkler will
not allow the DV-5aValve to open and
permit water to flow into the normally
dry sprinkler system piping. However,
operation of just the electric detec-
tion system or the opening of a sprin-
kler (loss of system air pressure) will
result in a supervisory alarm to notify
the building occupants of a condition
needing attention so as to avoid inad-
vertent flooding of the system piping.
The DV-5aValve is provided with two
forms of actuation: Electric/Electric or
Electric/Pneumatic.
In the case of the Electric/Electric
Actuation, a solenoid valve is used to
hold the DV-5aValve closed by locking
pressure in the diaphragm chamber of
the DV-5aValve. In the event of a fire,
Zone 1 of a releasing panel is initiated
by a fire detection or electric manual
pull station, and Zone 2 of the releas-
ing panel is initiated by a low pres-
sure alarm switch triggered by loss of
system air pressure due to the opening
of an automatic sprinkler. Initiating of
Zone 1 and 2 results in opening the
solenoid valve to operate the DV-5a
Valve.
Available End Connections and Weights — lb/(kg)
End Connection Nominal Valve Size ANSI Inches
(DN)
Inlet Outlet 1-1/2
(40)
2
(50)
3
(80)
4
(100)
6
(150)
8
(200)
Thread Thread 26
(11,8)
25
(11,3) N/A N/A N/A N/A
Groove Groove 25
(11,3)
25
(11,3)
60
( 27, 2 )
95
(4 3,1)
177
(80,3)
327
(148,3)
Flange Groove N/A N/A 66
(30,0)
106
(48,1)
190
(86,2)
346
(157,0 )
Flange Flange N/A N/A 72
(32,7)
116
(52,6)
204
(92,5)
365
(165,6)

TFP1450
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Nominal
Valve
Size
ANSI
Inches
(DN)
Flange Drilling Specification
Nominal Dimensions in Inches and (mm)
ANSI B16.1a
(Class 125) ISO 7005-2 (PN16)bJIS B 2210 (10K) AS 2129 (Table E)
A B N A B N A B N A B N
3
(80)
6.00
(152,4)
0.75
(19,0) 46.30 (160,0)
0.75
(19,0) 85.90 (150,0)
0.59
(15,0) 85.75 (146,0)
0.71
(18,0) 4
4
(100)
7.5 0
(190,5)
0.75
(19,0) 87. 0 9 (180,0)
0.75
(19,0) 86.89 (175,0)
0.60
(15,0) 87. 0 0 178,0)
0.71
(18,0) 8
6
(150)
9.50
(241,3)
0.88
(22,2) 89.45 (240,0)
0.91
(23,0) 89.45 (240,0)
0.75
(19,0) 89.25 (235)
0.87
(22,0) 8
8
(200)
11.75
(298,5)
0.88
(22,2) 811.61 (295,0)
0.91
(23,0) 12 11.42 (290,0)
0.75
(19,0) 12 11.50 (292,0)
0.87
(22,0) 8
NOTES:
a. Same drilling as for
ANSI B16.5 (Class 150) and
ANSI B16.42 (Class 150)
b. Same drilling as for
BS 4504 Section 3.2 (PN16) and
DIN 2532 (PN16)
Item Description Qty.
Nominal Valve Size ANSI Inch (DN)
1-1/2 (DN40) 2 (DN50) 3 (DN80) 4 (DN100) 6 (DN150) 8 (DN200)
P/N P/N P/N P/N P/N P/N
1Valve Body 1N/R N/R N/R N/R N/R N/R
2Diaphragm 1545000020 545000020 545000030 545000040 545000060 545000080
3Diaphragm Cover 1N/R N/R N/R N/R N/R N/R
4 Hex Bolt, Short 2a545100001 545100001 545100002 545100003 545100004 545100003
5Hex Bolt, Long 2545100011 545100011 545100012 545100013 545100014 545100015
6Lift Washer 2bN/A N/A 545100021 545100022 545100023 545100022
7Hex Nut 2545100031 545100031 545100032 545100033 545100034 545100033
8Hoist Ring 2545100041 545100041 545100041 545100041 545100041 545100041
9Flat Washer 2N/A N/A 545100024 545100025 545100026 545100025
NOTES
a. Hex Bolt, Short, Qty. 6 in 6 and 8 inch (DN150 and DN200) assemblies
b. Lift Washer not used in 1-1/2 and 2 inch (DN40 and DN50) assemblies
c. N/R = Not Replaceable
d. Order replacements parts only via Part Numbers given, do not replace Hex Bolt, Hex
Nut, Lift Washer or Hoist Ring with common hardware parts
Dim. A
Bolt Circle
Diameter
Dim. B
Bolt Hole
Diameter
Qty. N
Number of
Bolt Holes
1-1/2 AND 2 INCH
VALVES ONLY
6 AND 8 INCH
VALVES ONLY
79 5
6
3
4
1
75
3
1
1
2
5
9
1
2
3
8
4
7
6
FIGURE 1
DV-5aVALVE ASSEMBLY AND REPLACEMENT PARTS
TABLE A
FLANGE DRILLING SPECIFICATIONS

TFP1450
Page 3 of 28
Port Port Description
Port Sizes, NPT Inch per ANSI B1.20.1
1-1/2
(DN40) 2 (DN50) 3 (DN80) 4 (DN100) 6 (DN150) 8 (DN200)
P1 Diaphragm Chamber Supply 1/2 1/2 1/2 1/2 1/2 1/2
P2 Water Supply Pressure & Alarm Test 1/2 1/2 1/2 1/2 1/2 1/2
P3 Alarm Actuation 3/4 3/4 3/4 3/4 3/4 3/4
P4 Automatic Drain Valve 1/2 1/2 1/2 1/2 1/2 1/2
P5 System Drain 3/4 3/4 3/4 3/4 3/4 3/4
P6 Main Drain 3/4 3/4 1-1/4 222
P7 System Air Supply 1/2 1/2 1/2 1/2 1/2 1/2
FIGURE 2A
FIGURE 2C
FIGURE 2B
FIGURE 2D
SYSTEM DRAIN CONDITION
WATER SUPPLY SHUT OFF
DRAIN FROM SYSTEM
SET CONDITION
WATER SUPPLY
SYSTEM OPEN TO ATMOSPHERE
ALARM PORT
WATERFLOW
TO ALARM
WATER SUPPLY
PRESSURE &
ALARM TEST
SYSTEM
DRAIN
OPEN
SYSTEM
DRAIN
OPEN
MAIN
DRAIN
CLOSED
MAIN
DRAIN
OPEN
DIAPHRAGM
CHAMBER
SUPPLY
FROM
UPSTREAM
SIDE OF
SHUT-OFF
VALVE
DIAPHRAGM
CHAMBER
DIAPHRAGM
CHAMBER
OPEN TO
ATMOSPHERE
VALVE
WATERWAY
DIAPHRAGM
SEAT
VALVE
WATERWAY
DIAPHRAGM
CHAMBER
SUPPLY
FROM
UPSTREAM
SIDE OF
SHUT-OFF
VALVE
DIAPHRAGM
AUTOMATICALLY
FLEXES TO
ITS SEATED
POSTION
DIAPHRAGM
CHAMBER
OPEN TO
ATMOSPHERE
DIAPHRAGM
RETRACTS
OPENING
VALVE
WATERWAY
VALVE
WATERWAY
DIAPHRAGM
SEAT
VALVE
WATERWAY
OPERATED CONDITION
WATER SUPPLY SHUT OFF
RESIDUAL DRAIN CONDITION
WATERFLOW FROM WATER SUPPLY
WATERFLOW TO SYSTEM
RESIDUAL DRAIN FROM SYSTEM
SYSTEM
AIR
SUPPLY
AUTOMATIC
DRAIN VALVE
OPEN TO
ATMOSPHERE
AUTOMATIC
DRAIN VALVE
CLOSED
FIGURE 2
DV-5aVALVE OPERATION, PREACTION SYSTEMS

TFP1450
Page 4 of 28
In the case of Electric/Pneumatic Acti-
vation, a solenoid valve and a dry pilot
actuator connected in series is used to
hold the DV-5aValve closed by locking
pressure in the diaphragm chamber
of the DV-5aValve. In the event of a
fire, a releasing panel is initiated by a
fire detection or electric manual pull
station, to allow the solenoid valve to
open, and subsequently loss of system
air pressure due to opening of an auto-
matic sprinkler will result in opening of
the dry pilot actuator. Opening of both
the solenoid valve and dry pilot actu-
ator results in operation of the DV-5a
Valve.
The selection of Electric/Electric versus
Electric/Pneumatic is related to desired
system air pressure and system
volume that affects water delivery time
restraints.
NOTICE
The DV-5aValves described herein
must be installed and maintained in
compliance with this document, as
well as with the applicable standards
of the NATIONAL FIRE PROTECTION
ASSOCIATION (NFPA), in addition to
the standards of any other authorities
having jurisdiction. Failure to do so
may impair the performance of these
devices.
The owner is responsible for main-
taining their fire protection system
and devices in proper operating con-
dition. Contact the installing contrac-
tor or product manufacturer with any
questions.
Technical
Data
Approvals
UL/C-UL Listed
FM Approved
Listings and Approvals are based on
DV-5abeing trimmed as described in
this technical data sheet.
DV-5AValve
Components for the 1-1/2 thru 8 Inch
(DN40 thru DN200) DV-5aValves are
shown in Figure 1. The DV-5aValves
are for vertical installations. They are
rated for use at a service pressures of
20 to 300 psi (1,4 to 20,7 bar).
The take-out dimensions are shown
in Figure 3, and flanged connections
are available drilled per ANSI, ISO,
AS, and JIS specifications (Ref. Table
A). Threaded inlet and outlet connec-
tions are available in NPT or ISO 7/1.
Threaded port connections are NPT
threaded.
NOTE: PN16 flanges are pressure rated
to 16 bar.
Valve Trim
The maximum pressure rating is as
follows:
• Electric/Electric Double Interlock
Preaction Trim is dependent on
separately ordered solenoid valve
per Technical Data Sheet TFP2180.
• Electric/Electric Double Interlock
Preaction Trim when using the
separately ordered QRS Elec-
tronic Accelerator is based on the
separately ordered QRS electronic
Accelerator per Technical Data
She e t TFP1100
• Electric Pneumatic Double Interlock
Preaction Trim is the lesser of
250 psi (17,2 bar) or the sepa-
rately ordered solenoid valve per
Technical Data Sheet TFP2180
When the system pressure is greater
than 175 psi (12,1 bar), provision is to be
made to replace the standard order 300
psi (20,7 bar) Water Pressure Gauges
with separately ordered 600 psi (41,4
bar) Water Pressure Gauges.
If the addition of an Alarm Control Valve
is desired or required by the local AHJ,
the Alarm Control Valve noted as Item
H in Figures 12 and 13 is to be a sepa-
rately ordered electronically supervised
normally open valve.
External trim connections are NPT
threaded. EMEA trim is provided with
NPT x ISO 7/1 thread adapters.
Pressure Loss
Refer to Graph A
Actuation Options
Refer to subsections for Electric/Elec-
tric Actuation or Electric/Pneumatic
Actuation.
Materials of
Construction
Valve Body
Epoxy coated ductile iron per ASTM
A536-77, Grade 65-45-12
Diaphragm Cover
Epoxy coated ductile iron per ASTM
A536-77, Grade 65-45-12
Diaphragm
Polyester fabric reinforced, TEFLON
coated, EPDM rubber per ASTM D2000
Diaphragm Cover Fasteners
Aluminum zinc coated steel
Common Hardware Trim
• Common hardware pipe ttings are
galvanized or black as required and
are malleable per ASME B16.3.
• Common hardware pipe nipples are
galvanized or black as required and
are Schedule 40 per ASTM A53 or
A135.
8 Inch (DN200)
6 Inch (DN150)
4 Inch (DN100)
3 Inch (DN80)
2 Inch (DN50)
1-1/2 Inch (DN40)
22-3/8"
(569 mm)
16-3/4"
(425 mm)
13-3/4"
(349 mm)
10-3/16"
(260 mm)
10-3/16"
(260 mm)
27-7/16"
(697 mm)
DIMENSIONS SHOWN
ARE APPLICABLE TO
ALL END CONNECTION
CONFIGURATIONS
AVAILABLE PER
VALVE SIZE
FIGURE 3
DV-5aDELUGE VALVE
TAKE-OUT DIMENSIONS

TFP1450
Page 5 of 28
• Common hardware compression
tting are brass per ASTM B16
• Common hardware tubing is Type L
per ASTM B88
Operation
The TYCO DV-5aValve is a diaphragm
style valve that depends upon water
pressure in the Diaphragm Chamber
(Ref. Figure 2A) to hold the Diaphragm
closed against the water supply
pressure.
When the DV-5aValve is set for service,
the Diaphragm Chamber is pressurized
through the trim connections from the
inlet side of the system’s main control
valve.
Opening of a solenoid valve for Elec-
tric/Electric Actuation (Figure 4) or
opening of a solenoid valve and dry
pilot actuator for Electric/Pneumatic
Actuation (Ref. Figure 5), trips the
Model MRA-1 Manual Reset Actuator.
Tripping the MRA-1 releases water from
the DV-5aDiaphragm Chamber faster
than it can be replenished through the
1/8 in. (3,2 mm) restriction located in
the diaphragm chamber supply con-
nection. Release of water through the
MRA-1 results in a rapid pressure drop
in the DV-5aDiaphragm Chamber. The
force differential applied through the
Diaphragm to hold the Diaphragm in
the set position is then reduced below
the valve trip point. The water supply
pressure then forces the Diaphragm
open permitting water to flow into
the system piping, as well as through
the Alarm Port to actuate the system
alarms (Ref. Figure 2B).
Upon opening of the DV-5aValve, the
Model MRA-1 Manual Reset Actua-
tor opens to constantly vent the DV-5a
Diaphragm Chamber to "hydraulically
latch" the DV-5ain the tripped position
until manually reset.
Refer to the following two sections for
additional information regarding actua-
tion options:
• Electric/Electric Actuation
• Electric/Pneumatic Actuation
6 INCH (DN150)
3 INCH (DN80)
2 INCH (DN50)
4 INCH (DN100)
8 INCH (DN200)
1-1/2 INCH (DN40)
200 400 1000 3000200060010050
50002000 3000 1000070001000600400200
4000
15000
9.0
8.0
4.0
6.0
5.0
7.0
3.0
2.0
1.0
0.7
0.9
0.8
0.5
0.4
0.6
0.3
NOMINAL PRESSURE DROP IN BAR
(1 PSI = 0,06895 BAR)
FLOW RATE IN LITERS PER MINUTE (LPM)
(1 GPM = 3,785 LPM)
NOMINAL PRESSURE DROP IN POUNDS PER SQUARE INCH (PSI)
FLOW RATE IN GALLONS PER MINUTE (GPM)
0,022
0,080
0,030
0,040
0,060
0,050
0,070
0,100
0,090
0,200
0,300
0,400
0,500
0,600
GRAPH A
DV-5aVALVE
NOMINAL PRESSURE LOSS VERSUS FLOW

TFP1450
Page 6 of 28
Electric/
Electric
Actuation
System Design Considerations
Because a double interlock preac-
tion system requires time for a drop in
system air pressure to occur (concur-
rently with the response time for the
separate fire detection system) before
it will allow water to enter the system
piping, this system has characteristics
similar to a dry pipe sprinkler system.
Therefore, the system design con-
siderations for a dry pipe system are
normally applied to a double interlock
preaction system, — including: a 30%
increase in design area; a maximum
1 minute water delivery time for system
capacities of 500 gallons (1890 liters)
or more; and, prohibition of gridded
system piping.
As an option, the DV-5aDouble Inter-
lock Preaction System with Electric/
Electric Actuation may be equipped
with the Model QRS Electronic Accel-
erator to reduce the time to valve actu-
ation following the operation of the
electric detection system and one or
more automatic sprinklers. Refer to
Technical Data Sheet TFP1100 for
details regarding installation require-
ments and pressure ratings.
Note: Use of the Model QRS Electronic
Accelerator can permit system volumes
of 750 gallons (2840 Liters) without
applying the minimum one minute
water delivery time.
In order to readily perform the System
Inspection Procedure described in
the Care and Maintenance section,
it is recommended that a System
Shut-Off Valve be installed above the
DV-5aValve, as shown in Figure 4. The
System Shut-Off Valve should be a
listed or approved (as appropriate) indi-
cating valve with a supervisory switch
to monitor the normally open position.
Detection System
The Double Interlock Preaction System
With Electric/Electric Actuation Trim
provides for electric operation of the
DV-5aValve by a detection system
consisting of electrical devices such
as heat sensitive thermostats, smoke
detectors, and/or electric manual pull
stations. Information on the various
types of separately ordered Solenoid
Valves that may be used with this trim
package is given in Technical Data
Sheet TFP2180. Nominal installation
dimensions for the Double Interlock
Preaction System With Electric/Electric
Actuation Trim are shown in Figure 10.
The cross-zone deluge valve releas-
ing panel (automatic control unit)
with battery back-up, fire detection
devices, manual pull stations, and sig-
naling devices, that are utilized with the
Double Interlock Preaction System with
Electric/Electric Actuation must be UL
Listed, ULC Listed, C-UL Listed, or FM
Approved, as applicable.
NOTES:
The normally closed, de-energized
solenoid Valve is separately ordered
and selected based on the required
laboratory approval acceptable to the
authority having jurisdiction. Refer to
technical data Sheet TFP2180 for spe-
cific laboratory approvals.
Consult with the authority having juris-
diction regarding installation criteria
pertaining to electric actuation circuitry.
Due to the functionality of the Model
MRA-1 Manual Reset Actuator, the
release circuit of the releasing panel
need only provide the typical ten
minutes of alarm condition intended
SYSTEM PIPING WITH AUTOMATIC SPRINKLERS - NORMALLY DRY
SYSTEM DRAIN VALVE
(NORMALLY CLOSED)
MAIN
DRAIN VALVE
(NORMALLY
CLOSED)
LOCAL
MANUAL
CONTROL
STATION
MAIN
CONTROL VALVE
(NORMALLY
OPEN)
WATER
SUPPLY
DIAPHRAGM CHAMBER
PRESSURE GAUGE
WATER SUPPLY
PRESSURE
GAUGE
MANUAL RESET
ACTUATOR
WATERFLOW
PRESSURE
ALARM
SWITCH
SOLENOID
VALVE
(TYPICALLY
24 VOLTS DC)
ELECTRIC DETECTION SYSTEM
(TYPICALLY 24 VOLTS DC)
HEAT DETECTORS, SMOKE DETECTORS,
MANUAL PULL STATIONS, ETC.
CROSS-ZONE
DELUGE VALVE
RELEASING PANEL
(AUTOMATIC
CONTROL UNIT
WITH BATTERY
BACK-UP)
POWER
SUPPLY
(TYPICALLY
120 VOLTS AC)
MANUAL ELECTRIC PULL STATION
(AS REQUIRED)
ZONE
1
AUTOMATIC
AIR/NITROGEN
SUPPLY
TYPICALLY
15 PSI
ZONE
2
SUPERVISORY
LOW PRESSURE
ALARM SWITCH
DV-5A
VALVE
RESTRICTION DRAIN
DRAIN DRAIN
DRAIN
DRAIN
SYSTEM
SHUT-OFF VALVE
(NORMALLY OPEN)
SYSTEM AIR
PRESSURE
GAUGE
WATER SUPPLY SHUT-OFF
(NORMALLY OPEN)
DIAPHRAGM
CHAMBER SUPPLY
CONTROL VALVE
(NORMALLY OPEN)
DIAPHRAGM CHAMBER
SUPPLY CONNECTION
FIGURE 4
DV-5aVALVE - DOUBLE INTERLOCK PREACTION ELECTRIC/ELECTRIC ACTUATION
SCHEMATIC DIAGRAM

TFP1450
Page 7 of 28
to energize the Solenoid Valve to
open. After the ten minute duration, at
which point should the Solenoid Valve
become de-energized and close (espe-
cially while operating under battery
back-up), the MRA-1 will have already
automatically opened, thereby prevent-
ing the DV-5aDiaphragm Chamber
from becoming re-pressurized, and
preventing an inadvertent closing of
the DV-5aduring a fire event.
WARNING
If the delay between electric actua-
tion and subsequent sprinkler activa-
tion is anticipated to be greater then
10 minutes, adjust the battery back-up
calculation accordingly. Inadequate
battery back-up may result in failure of
the system to operate in the event of a
fire during a power failure.
Releasing Circuit
The releasing circuit must be equipped
with a Potter RCDS-1 Releasing Circuit
Switch, or equivalent. The RCDS-1
provides for a temporary disconnect
(de-energized) of the Solenoid Valve
during Step 9 of the Valve Resetting
Procedure.
System Air Pressure Requirements
The recommended system air pres-
sure for the Double Interlock Preaction
System with Electric/Electric Actuation
is nominally 15 psi (1,0 bar), irrespective
of the water supply pressure. The use
of a higher system air pressure may or
may not adversely affect water deliv-
ery time, and the use of a lower system
air pressure may prevent clearing the
alarm of the Low Pressure Switch on
increasing pressure. The Low Pressure
Switch is field set to alarm at nominally
12 psi (0,8 bar) on decreasing pres-
sure when using a nominal system air
pressure of 15 psi (1,0 bar). It is recom-
mended that the system air pressure
be maintained by either of the follow-
ing methods:
• A maximum 200 psi (13,8 bar) plant
air supply in combination with the
Model AMD-1 Air Maintenance
Device described in Technical Data
Sheet TFP1221
• A maximum 3000 psi (206,9 bar)
nitrogen cylinder in combination with
the Model AMD-3 Nitrogen Mainte-
nance Device described in Technical
Data Sheet TFP1241
NOTES:
It is recommended that the pressure
maintenance device be of a type that
maintains a constant system pressure,
i.e., a pressure maintenance device
that utilizes a pressure regulator versus
a pressure switch (e.g., the AMD-1 or
AMD-3). Use of a pressure switch oper-
ated pressure maintenance device with
a cut-in/cut-out differential may result
in a delay in the operation of the system
due to a fire, because of the cut-out
pressure being higher than the recom-
mended nominal system air pressure.
The dew point of the air or nitrogen
supply, for a system exposed to freez-
ing conditions, must be maintained
below the lowest ambient tempera-
ture to which the system piping will be
exposed. Introduction of moisture into
the system piping can create ice build
up which could prevent proper opera-
tion of the system.
The Air Pressure Relief Valve is typi-
cally field set to crack open at a pres-
sure of about 20 psi (1,4 bar) when
using a nominal system air pressure of
15 psi (1,0 bar).

TFP1450
Page 8 of 28
Electric/
Pneumatic
Actuation
System Design Considerations
Because a double interlock preac-
tion system requires time for a drop in
system air pressure to occur (concur-
rently with the response time for the
separate fire detection system) before
it will allow water to enter the system
piping, this system has characteristics
similar to a dry pipe sprinkler system.
Therefore, the system design con-
siderations for a dry pipe system are
normally applied to a double interlock
preaction system — including a 30%
increase in design area; a maximum 1
minute water delivery time for system
capacities of 500 gallons (1890 liters)
or more; and, prohibition of gridded
system piping.
In order to readily perform the System
Inspection Procedure described in
the Care and Maintenance section,
it is recommended that a System
Shut-Off Valve be installed above the
DV-5aValve, as shown in Figure 5. The
System Shut-Off Valve should be a
listed or approved (as appropriate) indi-
cating valve with a supervisory switch
to monitor the normally open position.
Detection System
The Double Interlock Preaction System
With Electric/Pneumatic Actuation
Trim provides for electric operation of
the DV-5aValve by a detection system
consisting of electrical devices such
as heat sensitive thermostats, smoke
detectors, and/or electric manual pull
stations. Information on the various
types of separately ordered Solenoid
Valves that may be used with this trim
package is given in Technical Data
Sheet TFP2180. Nominal installation
dimensions for the Double Interlock
Preaction System With Electric/Pneu-
matic Actuation Trim are shown in
Figure 11.
The Deluge Valve Releasing Panel
(automatic control unit) with battery
back-up, fire detection devices, manual
pull stations, and signaling devices
that are utilized with the Double Inter-
lock Preaction System with Electric/
Pneumatic Actuation must be UL
Listed, ULC Listed, C-UL Listed, or FM
Approved, as applicable.
NOTICE
The normally closed, de-energized
solenoid Valve is separately ordered
and selected based on the required
laboratory approval acceptable to the
authority having jurisdiction. Refer to
technical data Sheet TFP2180 for spe-
cific laboratory approvals.
Consult with the authority having juris-
diction regarding installation criteria
pertaining to electric actuation circuitry.
Due to the functionality of the Model
MRA-1 Manual Reset Actuator, the
release circuit of the releasing panel
need only provide the minimum typical
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 (espe-
cially while operating under battery
back-up), the MRA-1 will have already
automatically opened, thereby prevent-
ing the DV-5aDiaphragm Chamber
from becoming re-pressurized, and
preventing an inadvertent closing of
the DV-5aduring a fire event.
SYSTEM PIPING WITH AUTOMATIC SPRINKLERS - NORMALLY DRY
ELECTRIC DETECTION SYSTEM
(TYPICALLY 24 VOLTS DC)
HEAT DETECTORS, SMOKE DETECTORS,
MANUAL PULL STATIONS, ETC.
SYSTEM DRAIN VALVE
(NORMALLY CLOSED)
MAIN
DRAIN VALVE
(NORMALLY
CLOSED)
LOCAL
MANUAL
CONTROL
STATION
MAIN
CONTROL VALVE
(NORMALLY
OPEN)
SYSTEM
SHUT-OFF VALVE
(NORMALLY OPEN)
WATER
SUPPLY
DIAPHRAGM CHAMBER
PRESSURE GAUGE
WATER SUPPLY
PRESSURE
GAUGE
MANUAL RESET
ACTUATOR
WATERFLOW
PRESSURE
ALARM
SWITCH
SOLENOID
VALVE
(TYPICALLY
24 VOLTS DC)
DELUGE VALVE
RELEASING PANEL
(AUTOMATIC
CONTROL UNIT
WITH BATTERY
BACK-UP)
MANUAL ELECTRIC
PULL STATION
(AS REQUIRED)
POWER
SUPPLY
(TYPICALLY
120 VOLTS AC)
AUTOMATIC
AIR/NITROGEN
SUPPLY
(GRAPH A)
DRY PILOT
ACTUATOR
SUPERVISORY
LOW PRESSURE
ALARM SWITCH
DV-5A
VALVE
RESTRICTION DRAIN
DRAIN
DRAIN
DRAIN
DRAIN
SYSTEM AIR
PRESSURE
GAUGE
WATER SUPPLY SHUT-OFF
(NORMALLY OPEN)
DIAPHRAGM
CHAMBER SUPPLY
CONTROL VALVE
(NORMALLY OPEN)
DIAPHRAGM CHAMBER
SUPPLY CONNECTION
FIGURE 5
DV-5aVALVE - DOUBLE INTERLOCK PREACTION ELECTRIC/PNEUMATIC ACTUATION
SCHEMATIC DIAGRAM

TFP1450
Page 9 of 28
WARNING
If the delay between electric actua-
tion and subsequent sprinkler activa-
tion is anticipated to be greater then
10 minutes, adjust the battery back-up
calculation accordingly. Inadequate
battery back-up may result in failure of
the system to operate in the event of a
fire during a power failure.
System Air Pressure Requirements
The required system air pressure for
the Double Interlock Preaction System
with Electric/Pneumatic Actuation is
shown in Graph B as a function of the
anticipated water supply pressure. It is
recommended that the system air pres-
sure be maintained by one of the fol-
lowing methods:
• A maximum 200 psi (13,8 bar) plant
air supply in combination with the
Model AMD-1 Air Maintenance
Device described in Technical Data
Sheet TFP1221
• A dedicated air compressor in com-
bination with the Model AMD-2 Air
Maintenance Device described in
Technical Data Sheet TFP1231
Notes:
The dew point of the pilot line air pressure must be maintained
below the lowest ambient temperature to which the dry pilot
actuation system will be exposed. Accumulation of water in the
pilot line connection to the Actuator will lower the air pressure
at which the actuator will open and possibly prevent proper
operation. Also, introduction of moisture into the pilot lines
exposed to freezing temperatures can create an ice buildup
that could prevent proper operation of the Actuator.
An air dryer must be installed where the moisture content
of the air supply is not properly controlled at less than the
required value.
It is recommended that an AMD-3 Nitrogen Maintenance
Device be utilized in dry pilot actuation system applica-
tions where the dew point must be maintained below -20°F
(-29°C). Refer to Technical Data Sheet TFP1241.
• A maximum 3000 psi (206,9 bar)
nitrogen cylinder in combination with
the Model AMD-3 Nitrogen Mainte-
nance Device described in Technical
Data Sheet TFP1241
NOTICE
The dew point of the air or nitrogen
supply, for a system exposed to freez-
ing conditions, must be maintained
below the lowest ambient tempera-
ture to which the system piping will be
exposed. Introduction of moisture into
the system piping can create ice build
up which could prevent proper opera-
tion of the system.
The Air Pressure Relief Valve is typi-
cally set to crack open at 5 psi (0,34
bar) greater than the required system
air pressure provided in Graph B.
WATER SUPPLY PRESSURE IN PSI
100
RANGE OF ACTUATOR OPENING PRESSURE
MINIMUM SYSTEM AIR PRESSURE
AIR PRESSURE IN PSI
20 60
15
0
30
45
140 180
250
200
GRAPH B
DV-5aVALVE DOUBLE INTERLOCK PREACTION SYSTEM
AIR PRESSURE REQUIREMENTS

TFP1450
Page 10 of 28
Installation
The TYCO DV-5aValve is to be installed
in accordance with this section.
NOTICE
DV-5AAutomatic Water Control Valves
are designed to be used in freshwa-
ter systems. When the supply is from
an alternative source such as brackish
water, saltwater, or contains additives
such as foam, the limited warranty is
reduced to one year from the time of
installation. An increase in frequency of
inspections is required when the valve
is exposed to such supplies and other
corrosive conditions or chemicals that
could impact valve materials or the
operation of the assembly. The system
and all components must be designed
accordingly for the increased demand.
It is required to thoroughly flush the
valve and trim assembly with freshwa-
ter and reset to the set condition after
each operation.
Proper operation of the DV-5aValves
depends upon their trim being installed
in accordance with the instructions
given in this technical data sheet.
Failure to follow the appropriate trim
diagram may prevent the DV-5aValve
from functioning properly, as well as
void approvals and the manufacturer’s
warranties.
The DV-5aValve must be installed in a
readily visible and accessible location.
The DV-5aValve and associated trim
must be maintained at a minimum tem-
perature of 40°F (4°C).
Heat tracing of the DV-5aValve or its
associated trim is not permitted. Heat
tracing can result in the formation of
hardened mineral deposits that are
capable of preventing proper operation.
Always open the system control valves
slowly to avoid a sudden rush of water
entering the system.
The DV-5aValve is to be installed in
accordance with the following criteria:
Step 1. All nipples, fittings, and devices
must be clean and free of scale and
burrs before installation. Use pipe
thread sealant sparingly on male pipe
threads only.
Step 2. The DV-5aValve must be
trimmed in accordance with one of the
trim illustrations shown in Figures 6 or
7, as applicable.
Note: If the addition of an Alarm
Control Valve is desired or required by
the local AHJ, the Alarm Control Valve
noted as Item H in Figures 12 and 13 is
to be a separately ordered electroni-
cally supervised normally open valve.
Step 3. Care must be taken to ensure
that check valves, strainers, globe
valves, etc., are installed with the flow
arrows in the proper direction.
Step 4. Drain tubing to the Drip Funnel
must be installed with smooth bends
that will not restrict flow.
Step 5. The Main Drain and Drip Funnel
Drain may be interconnected provided
a check valve is located at least 12
inches (300 mm) below the Drip Funnel.
Step 6. Suitable provision must be
made for disposal of drain water. Drain-
age water must be directed such that
it will not cause accidental damage to
property or danger to persons.
Step 7. Connect the Diaphragm Supply
Valve to the inlet side of the System
Main Control Valve in order to facilitate
setting of the DV-5aValve (Ref. Figures
12 or 13, as applicable).
Step 8. An Inspector’s Test Connection
is to be located on the sprinkler system
at the most hydraulically demanding
location.
Step 9. A suitable automatic air (nitro-
gen) supply, as described in the appli-
cable Electric/Electric Actuation or
Electric/Pneumatic Actuation sub-sec-
tion, is to be installed in accordance
with the applicable technical data
sheet. The minimum air pressure is to
be in accordance with the referenced
sub-sections.
Step 10. A desiccant dryer, when spec-
ified, is to be installed between a drip
leg and the Air Maintenance Device.
Step 11. The Low Pressure Switch on
falling pressure is to be adjusted as
follows:
• For Electric/Pneumatic Actuation,
set the low pressure alarm setting at
approximately 6 psi (0,4 bar) below
the minimum system service pres-
sure requirement shown in Graph B.
• For Electric/Electric Actuation,
set the low air pressure switch at
3 psi (0,21 bar) below the system
air pressure.
Step 12. Unused Pressure Alarm
Switch connections must be plugged.
Step 13. The Pressure Relief Valve on
rising pressure is to be at 5 psi (0,34 bar)
higher than the required system air
pressure, or be reset in accordance
with the requirements of the authority
having jurisdiction.
To reset the Pressure Relief Valve, first
loosen the jam nut and then adjust the
cap accordingly, clockwise for a higher
pressure setting or counter clockwise
for a lower pressure setting. After ver-
ifying the desired pressure setting,
tighten the jam nut.
Step 14. Conduit and electrical con-
nections are to be made in accordance
with the applicable standards of the
approval agency.
Step 15. Before a system hydrostatic
test is performed, the DV-5aDiaphragm
Chamber is to be depressurized, the
Automatic Drain Valve is to be tem-
porarily replaced with a plug, and the
Diaphragm Cover Bolts must be uni-
formly and securely tightened using a
cross-draw sequence.After tighten-
ing, double-check to make certain that
all of the Diaphragm Cover Bolts are
securely tightened. Refer to Table B in
the Care and Maintenance section for
torque specifications.

TFP1450
Page 11 of 28
Notes:
1. Port Connections P1 through P7 are described in Figure 2.
2. External Trim Connections C1 through C5 are described in Figure 12.
3. When ordering pre-assembled "DV-5AValve with Galvanized Valve Trim" or pre-assembled "DV-5AValve with Galvanized Valve Trim and Buttery Valve",
Items A1 through A10 are provided, as applicably related to valve size, and Item A7 is provided as P/N 52-287-1-124 described in Technical Data Sheet
TFP2180
4. When ordering DV-5A Trim separately from the DV-5AValve, Items A1 through A10 are separately ordered, as applicably related to valve size. Water
Pressure Gauges for EMEA valve trim are also separately ordered.
Assemble in order
from A to L
C6
C7
C3
C5
C4
C2
C1
P1
P2
P3
P6
P7 P4
P5
1-1/2" (DN40) AND 2" (DN50)
VALVES ONLY
A1
A5
A4
A5
A6
A7
A3
A2
A8
A10
A9
E
D
C
A
B
G
H
F
L
J
K
FIGURE 6
DV-5aVALVES
DOUBLE INTERLOCK PREACTION ELECTRIC/ELECTRIC ACTUATION TRIM
SEMI-ASSEMBLED

TFP1450
Page 12 of 28
Notes:
1. Port Connections P1 through P7 are described in Figure 2.
2. External Trim Connections C1 through C5 are described in Figure 13.
3. When ordering pre-assembled "DV-5A Valve with Galvanized Valve Trim" or pre-assembled "DV-5A Valve with Galvanized Valve Trim and Buttery Valve",
Items A1 through A10 are provided, as applicably related to valve size, and Item A7 is provided as P/N 52-287-1-124 described in Technical Data Sheet
TFP2180.
4. When ordering DV-5A Trim separately from the DV-5A Valve, Items A1 through A10 are separately ordered, as applicably related to valve size.
Water Pressure Gauges for EMEA valve trim are also separately ordered.
Assemble in order
from A to M
C5
C6
C7
C3
C4
C2
C1
P1
P2
P3
P6
P7 P4
P5
1-1/2" (DN40) AND 2" (DN50)
VALVES ONLY
A3
A7
A1
A5
A4
A5
A6
A2
A8
A10
A9
L
E
D
C
A
B
G
H
F
M
J
K
FIGURE 7
DV-5aVALVES
DOUBLE INTERLOCK PREACTION ELECTRIC/PNEUMATIC ACTUATION TRIM
SEMI-ASSEMBLED

TFP1450
Page 13 of 28
Notes:
1. Port Connections P1 through P7
are described in Figure 2.
2. External Trim Connections C1
through C5 are described in
Figure 12.
3. When ordering pre-assembled
"DV-5A Valve with Galvanized
Valve Trim" or pre-assembled
"DV-5A Valve with Galvanized
Valve Trim and Buttery Valve",
Items A1 through A10 are
provided, as applicably related
to valve size, and Item A7 is
provided as P/N 52-287-1-124
described in Technical Data
Sheet TFP2180
4. When ordering DV-5A Trim
separately from the DV-5A Valve,
Items A1 through A10 are sepa-
rately ordered, as applicably
related to valve size. Water Pres-
sure Gauges for EMEA valve trim
are also separately ordered.
ITEM QTY DESCRIPTION CH 1-1/2 IN. (DN40) 2 IN. (DN50) 3 IN. (DN80) 4 IN. (DN100) 6 IN. (DN150) 8 IN. (DN200)
1 2 1/4” GAUGE TEST VALVE 460051003 460051003 460051003 460051003 460051003 460051003
2 1 MRA-1 MANUAL RESET ACTUATOR 545001000 545001000 545001000 545001000 545001000 545001000
3 1 MC-2 MANUAL CONTROL STATION 545002000 545002000 545002000 545002000 545002000 545002000
4 1 AD-3 AUTOMATIC DRAIN VALVE 547932004 547932004 547932004 547932004 547932004 547932004
5 1 PRIMING SUPPLY RESTRICTION 545100051 545100051 545100051 545100051 545100051 545100051
6 1 1/4” PRESSURE RELIEF VALVE 923431020 923431020 923431020 923431020 923431020 923431020
7 2 1/2” BALL VALVE 460501004 460501004 460501004 460501004 460501004 460501004
8 1 1/2” GLOBE VALVE 460471005 460471005 460471005 460471005 460471005 460471005
9 1 1/2” SPRING LOADED CHECK VALVE 923221003 923221003 923221003 923221003 923221003 923221003
10 1 1/2” SWING CHECK VALVE 460491007 460491007 460491007 460491007 460491007 460491007
11 11/2” Y-STRAINER 523531006 523531006 523531006 523531006 523531006 523531006
12 1 3/4” ANGLE VALVE 460481010 460481010 460481010 460481010 460481010 460481010
13 1ANGLE VALVE 460481010 460481010 460481011 460481012 460481012 460481012
14 1DRIP FUNNEL BRACKET CONNECTOR 92 2111005 9 2211100 5 9221110 0 5 92 2111005 92211100 5 92 2111005
15 1 DRIP FUNNEL BRACKET 92 2111003 9 2211100 3 9221110 0 3 9221110 03 92 2111003 922111003
16 1DRIP FUNNEL 923431007 923431007 923431007 923431007 923431007 923431007
17 2 COMP. FITTING 90° 1/2” MNPT x 1/2” OD TUBE 1001253-01 1001253-01 1001253-01 1001253-01 1001253-01 1001253-01
18 1 COMP. FITTING 90° 1/2” FNPT x 1/2” OD TUBE 1001420-01 1001420-01 1001420-01 1001420-01 1001420-01 1001420-01
19 2 FLARE FITTING 90° 1/2” NPT x 1/2” TUBE 545100062 545100062 545100062 545100062 545100062 545100062
20 2 FLARE FITTING 3/4” NPT x 3/4” TUBE 545100063 545100063 545100063 545100063 545100063 545100063
21 2PIPE PLUG ✓1/4” 1/4” 1/4” 1/4” 1/4” 1/4”
22 1PIPE PLUG ✓1/2” 1/2” 1/2” 1/2” 1/2” 1/2”
23 1PIPE PLUG ✓3/4” 3/4” 3/4” 3/4” 3/4” 3/4”
24 2UNION ✓1/2” 1/2” 1/2” 1/2” 1/2” 1/2”
C6
C7
C5
C3
C4
C2
C1
P1
P6
P7
P2
P3
P4
P5
1-1/2" (DN40) AND 2" (DN50)
VALVES ONLY
A5
A4
A5
A6
A1
A3
A7
A2
A8 A10
A9
2
9
17
13
33
55
54 20
12 3
29
39
14
11
37
27
37
7
24
37
20
49
24
31 35
121
25
48
19
38
7
37
27
19
43
5
45
56
16
15
4
29
18
53
50
32
10
30
34
1
36
21
36
36
8
41
36
22
39
26 51
27
28
52 27
42
46
36
47
17
57
40
58
59
56
31
6
32
23
44
FIGURE 8 (1 OF 2)
DV-5aVALVES
DOUBLE INTERLOCK PREACTION ELECTRIC/ELECTRIC ACTUATION TRIM
EXPLODED VIEW

TFP1450
Page 14 of 28
ITEM QTY DESCRIPTION CH 1-1/2 IN. (DN40) 2 IN. (DN50) 3 IN. (DN80) 4 IN. (DN100) 6 IN. (DN150) 8 IN. (DN200)
25 1STREET ELBOW ✓1/4” x 90° 1/4” x 90° 1/4” x 90° 1/4” x 90° 1/4” x 90° 1/4” x 90°
26 1ELBOW ✓1/2” x 45° 1/2” x 45° 1/2” x 45° 1/2” x 45° 1/2” x 45° 1/2” x 45°
27 4ELBOW ✓1/2” x 90° 1/2” x 90° 1/2” x 90° 1/2” x 90° 1/2” x 90° 1/2” x 90°
28 1CROSS ✓1/2” 1/2” 1/2” 1/2” 1/2” 1/2”
29 2TEE ✓1/2” 1/2” 1/2” 1/2” 1/2” 1/2”
30 1REDUCING TEE ✓1/2” x 1/4” x 1/2” 1/2” x 1/4” x 1/2” 1/2” x 1/4” x 1/2” 1/2” x 1/4” x 1/2” 1/2” x 1/4” x 1/2” 1/2” x 1/4” x 1/2”
31 2REDUCING TEE ✓1/2” x 1/2” x 1/4” 1/2” x 1/2” x 1/4” 1/2” x 1/2” x 1/4” 1/2” x 1/2” x 1/4” 1/2” x 1/2” x 1/4” 1/2” x 1/2” x 1/4”
32 2REDUCING TEE ✓3/4” x 1/2” x 3/4” 3/4” x 1/2” x 3/4” 3/4” x 1/2” x 3/4” 3/4” x 1/2” x 3/4” 3/4” x 1/2” x 3/4” 3/4” x 1/2” x 3/4”
33 1REDUCING TEE ✓3/4” x 3/4” x 3/4” 3/4” x 3/4” x 3/4” 1-1/4” x 1-1/4” x 3/4” 2” x 2” x 3/4” 2” x 2” x 3/4” 2” x 2” x 3/4”
34 1PIPE NIPPLE ✓1/4” x CLOSE 1/4” x CLOSE 1/4” x CLOSE 1/4” x CLOSE 1/4” x CLOSE 1/4” x CLOSE
35 1PIPE NIPPLE ✓1/4” x 1-1/2” 1/4” x 1-1/2” 1/4” x 1-1/2” 1/4” x 1-1/2” 1/4” x 1-1/2” 1/4” x 1-1/2”
36 5PIPE NIPPLE ✓1/2” x CLOSE 1/2” x CLOSE 1/2” x CLOSE 1/2” x CLOSE 1/2” x CLOSE 1/2” x CLOSE
37 4PIPE NIPPLE ✓1/2” x 1-1/2” 1/2” x 1-1/2” 1/2” x 1-1/2” 1/2” x 1-1/2” 1/2” x 1-1/2” 1/2” x 1-1/2”
38 1PIPE NIPPLE ✓1/2” x 2” 1/2” x 2” 1/2” x 2” 1/2” x 2” 1/2” x 2” 1/2” x 2”
39 2PIPE NIPPLE ✓1/2” x 2-1/2” 1/2” x 2-1/2” 1/2” x 2-1/2” 1/2” x 2-1/2” 1/2” x 2-1/2” 1/2” x 2-1/2”
40 1PIPE NIPPLE ✓1/2” x 4-1/2” 1/2” x 4-1/2” 1/2” x 4-1/2” 1/2” x 4-1/2” 1/2” x 4-1/2” 1/2” x 4-1/2”
41 1PIPE NIPPLE ✓1/2” x 5” 1/2” x 5” 1/2” x 5” 1/2” x 5” 1/2” x 5” 1/2” x 5”
42 1PIPIE NIPPLE ✓1/2” x 8-1/2” 1/2” x 8-1/2” 1/2” x 8-1/2” 1/2” x 8-1/2” 1/2” x 8-1/2” 1/2” x 8-1/2”
43 1PIPE NIPPLE ✓3/4” x 1-1/2” 3/4” x 1-1/2” 3/4” x 1-1/2” 3/4” x 1-1/2” 3/4” x 1-1/2” 3/4” x 1-1/2”
44 1PIPE NIPPLE ✓3/4” x 4-1/2” 3/4” x 4-1/2” 3/4” x 4-1/2” 3/4” x 4-1/2” 3/4” x 4-1/2” 3/4” x 4-1/2”
45 1TUBING, MRA-1 DRAIN 545100065 545100065 545100066 535002140 535002160 535002180
46 1TUBING, MC-2 DRAIN 535000220 535000220 535000230 535000240 535000260 535000280
47 1TUBING, SOLENOID DRAIN 535001020 535001020 535000630 535000640 535000660 535000680
48 1 TUBING ASSY, ALARM TEST INTERCONNECT 535000320 535000320 535000330 535000340 535000360 535000380
49 1 TUBING ASSY, SYSTEM DRAIN 535000420 535000420 535000430 535000440 535000460 535000480
50 1PIPE NIPPLE ✓1/2” x 3-1/2” 1/2” x 3-1/2” 1/2” x 4-1/2” 1/2” x 5-1/2” 1/2” x 5-1/2” 1/2” x 6-3/4”
51 1PIPE NIPPLE ✓1/2” x 5” 1/2” x 5” 1/2” x 5-1/2” 1/2” x 5-1/2” 1/2” x 5-1/2” 1/2” x 6-1/2”
52 1PIPE NIPPLE ✓1/2” x 5” 1/2” x 5” 1/2” x 4-1/2” 1/2” x 5” 1/2” x 7-1/2” 1/2” x 9-1/2”
53 1PIPE NIPPLE ✓3/4” x 5” 3/4” x 5” 3/4” x 6” 3/4” x 7” 3/4” x 9” 3/4” x 11-1/2”
54 1PIPE NIPPLE ✓3/4” x 4-1/2” 3/4” x 4-1/2” 1-1/4” x 3-1/4” 2” x 3” 2” x 3” 2” x 3”
55 1PIPE NIPPLE ✓3/4” x 6-1/2” 3/4” x 6-1/2” 1-1/4” x 5-1/2” 2” x 5” 2” x 6” 2” x 8”
56
2WATER PRESSURE GAUGE, 300 PSI / 2000 kPa
(AMER/APAC) 923431005 923431005 923431005 923431005 923431005 923431005
2WATER PRESSURE GAUGE, 20 bar / 2000 kPa
(EMEA) 025500013 025500013 025500013 025500013 025500013 025500013
57 1AIR PRESSURE GAUGE, 80 PSI / 550 kPa
RETARDED TO 250PSI / 1750 kPa 923431012 923431012 923431012 923431012 923431012 923431012
58 1LABEL 545003005 545003005 545003005 545003005 545003005 545003005
59 1 LABEL WIRE — — — — — —
A1 1DV-5 A VALVE REFER TO TABLE E FOR DV-5A PART NUMBERS
A2
1WATERFLOW PRESSURE ALARM SWITCH,
PS10-2 (AMER/APAC) 25710 25710 25710 25710 25710 25710
1WATERFLOW PRESSURE ALARM SWITCH,
PS10-1 (EMEA) 0260 0260 0260 0260 0260 0260
A3
1LOW AIR PRESSURE ALARM SWITCH, PS40-2
(AMER/APAC) 25730 25730 25730 25730 25730 25730
1LOW AIR PRESSURE ALARM SWITCH, PS40-1
(EMEA) 0262 0262 0262 0262 0262 0262
A4 1 BUTTERFLY VALVE, G x G 51024A 51021A — — — —
1 BFV-300 BUTTERFLY VALVE, G x G — — 59300G030WS 59300G040WS 59300G060WS 59300G080WS
A5 2FIGURE 577 RIGID GROOVED COUPLING 57715ACP 57720ACP — — — —
1FIGURE 577 RIGID GROOVED COUPLING — — 57730ACP 57740ACP 57760ACP 57780ACP
A6 1 GROOVE x THREADED OUTLET WELDED TEE 545004000 545004001 — — — —
A7 1SOLENOID VALVE NORMALLY CLOSED
(SEPARATELY ORDERED) SEE TFP2180 SEE TFP2180 SEE TFP2180 SEE TFP2180 SEE TFP2180 SEE TFP2180
A8 1INVERTED FLARE SHUT-OFF VALVEa545100100 545100100 545100099 545100100 545100100 545100100
A9 1 FLARE FITTING 90° 1/2” NPT x 1/2” TUBE 545100062 545100062 545100062 545100062 545100062 545100062
A10 1TUBING ASSY, DIAPHRAGM CHAMBER SUPPLY 540000015 540000020 540000030 540000040 540000060 540000080
NOTES
a. Not VdS Approved
CH - Common Hardware - Refer to Materials of Construction section for specications.
FIGURE 8 (2 OF 2)
DV-5aVALVES
DOUBLE INTERLOCK PREACTION ELECTRIC/ELECTRIC ACTUATION TRIM
EXPLODED VIEW

TFP1450
Page 15 of 28
NOTES
1. Port Connections P1 through
P7 are described in Figure 2.
2. External Trim Connections C1
through C5 are described in
Figure 13.
3. When ordering pre-assembled
"DV-5A Valve with Galvanized
Valve Trim" or pre-assembled
"DV-5A Valve with Galvanized
Valve Trim and Buttery
Valve", Items A1 through A10
are provided, as applicably
related to valve size, and Item
A7 is provided as P/N
52-287-1-124 described
in Technical Data Sheet
TFP2180
4. When ordering DV-5A Trim
separately from the DV-5A
Valve, Items A1 through A10
are separately ordered, as
applicably related to valve
size. Water Pressure Gauges
for EMEA valve trim are also
separately ordered.
ITEM QTY. DESCRIPTION CH 1-1/2 IN. (DN40) 2 IN. (DN50) 3 IN. (DN80) 4 IN. (DN100) 6 IN. (DN150) 8 IN. (DN200)
1 2 1/4” GAUGE TEST VALVE 460051003 460051003 460051003 460051003 460051003 460051003
2 1 MRA-1 MANUAL RESET ACTUATOR 545001000 545001000 545001000 545001000 545001000 545001000
3 1 MC-2 MANUAL CONTROL STATION 545002000 545002000 545002000 545002000 545002000 545002000
4 1 AD-3 AUTOMATIC DRAIN VALVE 547932004 547932004 547932004 547932004 547932004 547932004
5 1 DP-1 DRY PILOT ACTUATOR 522801001 522801001 522801001 522801001 522801001 522801001
6 1 PRIMING SUPPLY RESTRICTION 545100051 545100051 545100051 545100051 545100051 545100051
7 1 1/4” PRESSURE RELIEF VALVE 923431020 923431020 923431020 923431020 923431020 923431020
8 2 1/2” BALL VALVE 460501004 460501004 460501004 460501004 460501004 460501004
9 1 1/2” GLOBE VALVE 460471005 460471005 460471005 460471005 460471005 460471005
10 1 1/2” SPRING LOADED CHECK VALVE 923221003 923221003 923221003 923221003 923221003 923221003
11 1 1/2” SWING CHECK VALVE 460491007 460491007 460491007 460491007 460491007 460491007
12 11/2” Y-STRAINER 523531006 523531006 523531006 523531006 523531006 523531006
13 1 3/4” ANGLE VALVE 460481010 460481010 460481010 460481010 460481010 460481010
14 1ANGLE VALVE 460481010 460481010 460481011 460481012 460481012 460481012
15 1DRIP FUNNEL BRACKET CONNECTOR 92 2111005 9 2211100 5 9221110 0 5 92 2111005 92211100 5 92 2111005
16 1 DRIP FUNNEL BRACKET 92 2111003 9 2211100 3 9221110 0 3 9221110 03 92 2111003 922111003
17 1DRIP FUNNEL 923431007 923431007 923431007 923431007 923431007 923431007
18 1 COMP. FITTING 90° 1/2” MNPT x 1/2” OD TUBE 1001253-01 1001253-01 1001253-01 1001253-01 1001253-01 1001253-01
19 2 COMP. FITTING 90° 1/2” FNPT x 1/2” OD TUBE 1001420-01 1001420-01 1001420-01 1001420-01 1001420-01 1001420-01
20 4 FLARE FITTING 90° 1/2” NPT x 1/2” TUBE 545100062 545100062 545100062 545100062 545100062 545100062
21 2 FLARE FITTING 3/4” NPT x 3/4” TUBE 545100063 545100063 545100063 545100063 545100063 545100063
22 2PIPE PLUG ✓1/4” 1/4” 1/4” 1/4” 1/4” 1/4”
23 1PIPE PLUG ✓3/4” 3/4” 3/4” 3/4” 3/4” 3/4”
24 2UNION ✓1/2” 1/2” 1/2” 1/2” 1/2” 1/2”
C1
C6
C7
C5
C3
C4
C2
P1
P6
P7
P2
P3
P4
P5
1-1/2" (DN40) AND 2" (DN50)
VALVES ONLY
A5
A4
A5
A6
A1
A7
A3
A2
A8 A10
A9
2
10
18
14
33
57
56 21
13 3
29
39
15
12
37
27
37
8
24
37
21
49
24
31 35
122
25
47
20
38
8
37
27
20
42
6
44
58
17
16
4
29
19
55
50
32
11
30
34
1
36
22
36
36
9
27
26 51
52
54
45
36
46
36
40
19
5
59
39
27
28
36
20
48
41
20
53
60
61
58
31
7
32
23
43
FIGURE 9 (1 OF 2)
DV-5aVALVES
DOUBLE INTERLOCK PREACTION ELECTRIC/PNEUMATIC ACTUATION TRIM
EXPLODED VIEW

TFP1450
Page 16 of 28
ITEM QTY. DESCRIPTION CH 1-1/2 IN. (DN40) 2 IN. (DN50) 3 IN. (DN80) 4 IN. (DN100) 6 IN. (DN150) 8 IN. (DN200)
26 1ELBOW ✓1/2” x 45° 1/2” x 45° 1/2” x 45° 1/2” x 45° 1/2” x 45° 1/2” x 45°
27 4ELBOW ✓1/2” x 90° 1/2” x 90° 1/2” x 90° 1/2” x 90° 1/2” x 90° 1/2” x 90°
28 1CROSS ✓1/2” 1/2” 1/2” 1/2” 1/2” 1/2”
29 2TEE ✓1/2” 1/2” 1/2” 1/2” 1/2” 1/2”
30 1REDUCING TEE ✓1/2” x 1/4” x 1/2” 1/2” x 1/4” x 1/2” 1/2” x 1/4” x 1/2” 1/2” x 1/4” x 1/2” 1/2” x 1/4” x 1/2” 1/2” x 1/4” x 1/2”
31 2REDUCING TEE ✓1/2” x 1/2” x 1/4” 1/2” x 1/2” x 1/4” 1/2” x 1/2” x 1/4” 1/2” x 1/2” x 1/4” 1/2” x 1/2” x 1/4” 1/2” x 1/2” x 1/4”
32 2REDUCING TEE ✓3/4” x 1/2” x 3/4” 3/4” x 1/2” x 3/4” 3/4” x 1/2” x 3/4” 3/4” x 1/2” x 3/4” 3/4” x 1/2” x 3/4” 3/4” x 1/2” x 3/4”
33 1REDUCING TEE ✓3/4” x 3/4” x 3/4” 3/4” x 3/4” x 3/4” 1-1/4” x 1-1/4” x 3/4” 2” x 2” x 3/4” 2” x 2” x 3/4” 2” x 2” x 3/4”
34 1PIPE NIPPLE ✓1/4” x CLOSE 1/4” x CLOSE 1/4” x CLOSE 1/4” x CLOSE 1/4” x CLOSE 1/4” x CLOSE
35 1PIPE NIPPLE ✓1/4” x 1-1/2” 1/4” x 1-1/2” 1/4” x 1-1/2” 1/4” x 1-1/2” 1/4” x 1-1/2” 1/4” x 1-1/2”
36 6PIPE NIPPLE ✓1/2” x CLOSE 1/2” x CLOSE 1/2” x CLOSE 1/2” x CLOSE 1/2” x CLOSE 1/2” x CLOSE
37 4PIPE NIPPLE ✓1/2” x 1-1/2” 1/2” x 1-1/2” 1/2” x 1-1/2” 1/2” x 1-1/2” 1/2” x 1-1/2” 1/2” x 1-1/2”
38 1PIPE NIPPLE ✓1/2” x 2” 1/2” x 2” 1/2” x 2” 1/2” x 2” 1/2” x 2” 1/2” x 2”
39 2PIPE NIPPLE ✓1/2” x 2-1/2” 1/2” x 2-1/2” 1/2” x 2-1/2” 1/2” x 2-1/2” 1/2” x 2-1/2” 1/2” x 2-1/2”
40 1PIPE NIPPLE ✓1/2” x 3” 1/2” x 3” 1/2” x 3” 1/2” x 3” 1/2” x 3” 1/2” x 3”
41 1PIPE NIPPLE ✓1/2” x 5” 1/2” x 5” 1/2” x 5” 1/2” x 5” 1/2” x 5” 1/2” x 5”
42 1PIPE NIPPLE ✓3/4” x 1-1/2” 3/4” x 1-1/2” 3/4” x 1-1/2” 3/4” x 1-1/2” 3/4” x 1-1/2” 3/4” x 1-1/2”
43 1PIPE NIPPLE ✓3/4” x 4-1/2” 3/4” x 4-1/2” 3/4” x 4-1/2” 3/4” x 4-1/2” 3/4” x 4-1/2” 3/4” x 4-1/2”
44 1TUBING, MRA-1 DRAIN 545100065 545100065 545100066 535002140 535002160 535002180
45 1TUBING, MC-2 DRAIN 535000220 535000220 535000230 535000240 535000260 535000280
46 1TUBING, DP-1 DRAIN 535001220 535001220 535001230 535001240 535001260 535001280
47 1 TUBING ASSY, ALARM TEST INTERCONNECT 535000320 535000320 535000330 535000340 535000360 535000380
48 1TUBING ASSY, ACTUATION INTERCONNECT 535001320 535001320 535001330 535001340 535001360 535001380
49 1 TUBING ASSY, SYSTEM DRAIN 535000420 535000420 535000430 535000440 535000460 535000480
50 1PIPE NIPPLE ✓1/2” x 3-1/2” 1/2” x 3-1/2” 1/2” x 4-1/2” 1/2” x 5-1/2” 1/2” x 5-1/2” 1/2” x 6-3/4”
51 1PIPE NIPPLE ✓1/2” x 5” 1/2” x 5” 1/2” x 5-1/2” 1/2” x 5-1/2” 1/2” x 5-1/2” 1/2” x 6-1/2”
52 1PIPE NIPPLE ✓1/2” x 5” 1/2” x 5” 1/2” x 4-1/2” 1/2” x 5” 1/2” x 7-1/2” 1/2” x 9-1/2”
53 1PIPE NIPPLE ✓1/2” x 4-1/2” 1/2” x 4-1/2” 1/2” x 4-1/2” 1/2” x 4-1/2” 1/2” x 4-1/2” 1/2” x 4-1/2”
54 1PIPE NIPPLE ✓1/2” x 8-1/2” 1/2” x 8-1/2” 1/2” x 8-1/2” 1/2” x 8-1/2” 1/2” x 8-1/2” 1/2” x 8-1/2”
55 1PIPE NIPPLE ✓3/4” x 5” 3/4” x 5” 3/4” x 6” 3/4” x 7” 3/4” x 9” 3/4” x 11-1/2”
56 1PIPE NIPPLE 3/4” x 4-1/2” 3/4” x 4-1/2” 1-1/4” x 3-1/4” 2” x 3” 2” x 3” 2” x 3”
57 1PIPE NIPPLE 3/4” x 6-1/2” 3/4” x 6-1/2” 1-1/4” x 5-1/2” 2” x 5” 2” x 6” 2” x 8”
58 2WATER PRESSURE GAUGE, 300 PSI / 2000 kPa
(AMER/APAC) 923431005 923431005 923431005 923431005 923431005 923431005
58 2WATER PRESSURE GAUGE, 20 bar / 2000 kPa
(EMEA) 025500013 025500013 025500013 025500013 025500013 025500013
59 1AIR PRESSURE GAUGE, 80 PSI / 550 kPa
RETARDED TO 250PSI / 1750 kPa 923431012 923431012 923431012 923431012 923431012 923431012
60 1LABEL 545003005 545003005 545003005 545003005 545003005 545003005
61 1 LABEL WIRE — — — — — —
A1 1DV-5 A VALVE REFER TO TABLE E FOR DV-5A PART NUMBERS
A2 1WATERFLOW PRESSURE ALARM SWITCH,
PS10-2 (AMER/APAC) 25710 25710 25710 25710 25710 25710
A2 1WATERFLOW PRESSURE ALARM SWITCH,
PS10-1 (EMEA) 0260 0260 0260 0260 0260 0260
A3 1LOW AIR PRESSURE ALARM SWITCH, PS40-2
AMER/APAC) 25730 25730 25730 25730 25730 25730
A3 1LOW AIR PRESSURE ALARM SWITCH, PS40-1
EMEA) 0262 0262 0262 0262 0262 0262
A4 1 BUTTERFLY VALVE, G x G 51024A 51021A — — — —
A4 1 BFV-300 BUTTERFLY VALVE, G x G — — 59300G030WS 59300G040WS 59300G060WS 59300G080WS
A5 2FIGURE 577 RIGID GROOVED COUPLING 57715ACP 57720ACP — — — —
A5 1FIGURE 577 RIGID GROOVED COUPLING — — 57730ACP 57740ACP 57760ACP 57780ACP
A6 1 GROOVE x THREADED OUTLET WELDED TEE 545004000 545004001 — — — —
A7 1SOLENOID VALVE NORMALLY CLOSED
(SEPARATELY ORDERED) SEE TFP2180 SEE TFP2180 SEE TFP2180 SEE TFP2180 SEE TFP2180 SEE TFP2180
A8 1INVERTED FLARE SHUT-OFF VALVEa545100100 545100100 545100099 545100100 545100100 545100100
A9 1 FLARE FITTING 90° 1/2” NPT x 1/2” TUBE 545100062 545100062 545100062 545100062 545100062 545100062
A10 1TUBING ASSY, DIAPHRAGM CHAMBER SUPPLY 540000015 540000020 540000030 540000040 540000060 540000080
NOTES
a. Not VdS Approved
CH - Common Hardware - Refer to Materials of Construction section for specications.
FIGURE 9 (2 OF 2)
DV-5aVALVES
DOUBLE INTERLOCK PREACTION ELECTRIC/PNEUMATIC ACTUATION TRIM
EXPLODED VIEW

TFP1450
Page 17 of 28
Nominal
Valve
Size
ANSI
Inches
(DN)
Inches
(mm)
A B C D E F G H J
1-1/2
(40)
2.8
(71)
9.7
(246)
10.4
(264)
15.7
(399)
16.2
(412)
7.3
(185)
10.2
(259)
8.0
(203)
1.2
(31)
2
(50)
2.8
(71)
9.7
(246)
10.4
(264)
15.7
(399)
16.2
(412)
7.3
(185)
10.2
(259)
3.8
(97)
2.9
(74)
3
(80)
3.0
(76)
10.9
(277)
12.0
(305)
16.3
(414)
18.5
(470)
5.8
(147)
13.8
(351)
3.9
(99)
3.6
(91)
4
(100)
3.0
(76)
12.2
(310)
13.1
(333)
16.5
(419)
21.0
(533)
5.1
(129)
16.8
(427)
4.5
(114)
4.3
(109)
6
(150)
4.5
(114)
13.6
(345)
15.0
(381)
18.4
(467)
24.8
(630)
3.4
(86)
22.4
(569)
5.9
(150)
5.7
(145)
8
(200)
5.3
(135)
16.3
(414)
17. 2
(437)
19.5
(495)
29.1
(739)
2.9
(74)
27.5
(699)
5.2
(132)
6.7
(170)
Notes:
1. Dimensions based on drain valves being open.
2. Dimensions do not provide installation clearance.
HF
E
DCB
J
A
G
FIGURE 10
DV-5aVALVE
DOUBLE INTERLOCK PREACTION ELECTRIC/ELECTRIC ACTUATION TRIM
NOMINAL DIMENSIONS

TFP1450
Page 18 of 28
Nominal
Valve
Size
ANSI
Inches
(DN)
Inches
(mm)
A B C D E F G H J
1-1/2
(40)
2.8
(71)
9.7
(246)
10.4
(264)
15.7
(399)
16.8
(427)
7.3
(185)
10.2
(259)
8.0
(203)
1.2
(31)
2
(50)
2.8
(71)
9.7
(246)
10.4
(264)
15.7
(399)
16.8
(427)
7.3
(185)
10.2
(259)
3.8
(97)
2.9
(74)
3
(80)
3.0
(76)
11.4
(290)
12.0
(305)
16.3
(414)
18.6
(472)
5.8
(147)
13.8
(351)
3.9
(99)
3.6
(91)
4
(100)
3.0
(76)
12.7
(323)
13.1
(333)
16.5
(419)
21.0
(533)
5.1
(129)
16.8
(427)
4.5
(114)
4.3
(109)
6
(150)
4.5
(114)
14.0
(356)
15.0
(381)
18.4
(467)
24.8
(630)
3.4
(86)
22.4
(569)
5.9
(150)
5.7
(145)
8
(200)
5.3
(135)
16.8
(427)
17. 2
(437)
19.5
(495)
29.1
(739)
2.9
(74)
27.5
(699)
5.2
(132)
6.7
(170)
NOTES
1. Dimensions based on drain valves being open.
2. Dimensions do not provide installation clearance.
HF
E
DCB
J
A
G
FIGURE 11
DV-5aVALVE
DOUBLE INTERLOCK PREACTION ELECTRIC/PNEUMATIC ACTUATION TRIM
NOMINAL DIMENSIONS

TFP1450
Page 19 of 28
Valve Setting
Procedure
Perform Steps 1 through 20 when ini-
tially setting the TYCO DV-5aValve,
after an operational test of the fire pro-
tection system, or after system opera-
tion due to a fire. Refer to Figure 12 or
13, as applicable, and determine which
type actuation system is being set.
Step 1. Close the System Main Control
Valve (B).
Step 2. Close the Diaphragm Supply
Valve (P) and Air Supply Valve (R).
Step 3. Open the Main Drain Valve (D),
System Drain Valve (E), and all auxil-
iary drains in the system. Close the
auxiliary drain valves and the System
Drain Valve (E) after water ceases to
discharge. Leave the Main Drain Valve
(D) open.
At this time make certain that the
Pressure Gauge Valves and the Alarm
Control Valve (H), as applicable, are
open.
NOTICE
Do not open the Inspector’s Test Con-
nection and auxiliary drains if reset-
ting after a system test; otherwise,
system air pressure will be relieved
unnecessarily.
Step 4. Depress the plunger of the
Automatic Drain Valve (F) to verify that
it is open.
Step 5. Clean the Diaphragm Supply
Strainer (Q) by removing the clean-
out plug and strainer basket. The Dia-
phragm Supply Strainer (Q) may be
flushed out by momentarily opening
the Diaphragm Supply Valve (P).
Step 6. Inspect for and clear all ice
plugs where system piping has been
exposed to freezing conditions and
when there has been a flow of water
into the system.
Step 7. Replace all damaged or oper-
ated sprinklers. Replacement sprinklers
must be of the same type and tempera-
ture rating as those that operated.
NOTICE
In order to prevent the possibility of a
subsequent operation of an overheated
solder type sprinkler, any solder type
sprinklers possibly exposed to a tem-
perature greater than their maximum
rated ambient must also be replaced.
Step 8. Service the air dryer, if appli-
cable, in accordance with the manu-
facturer’s instructions.
Step 9. De-energize the Solenoid Valve
(V).
• For Electric/Electric Actuation, de-
energize the Solenoid Valve (V) via
the Potter RCDS-1 Releasing Circuit
Disable Switch, or equivalent.
• For Electric/Pneumatic Actuation,
de-energize the Solenoid Valve (V) by
resetting the electric detection sys-
tem in accordance with the manufac-
turer's instructions.
Step 10. Operate (open) the Manual
Control Station (M) and then open
the Diaphragm Supply Valve (P). After
unaerated water ceases to discharge
from the Manual Control Station (M)
drain tube, slowly close the operating
lever by pushing it up. Do not close the
hinged cover at this time.
Step 11. After allowing water to flow out
of the Manual Reset Actuator (N) drain
tube until aerated water ceases to dis-
charge, reset the Manual Reset Actua-
tor (N) by pressing the Reset Knob and
hold until water stops flowing from its
drain tube and the pressure builds and
reaches approximately 15 psi (1,0 bar)
on the Diaphragm Gauge (K). Pressure
will then build up in the DV-5aDia-
phragm Chamber.
Step 12. Inspect the actuation device
drain connections. Any leaks must be
corrected before proceeding to the
next step.
• Electric/Electric actuation drain con-
nection to be inspected are from the
Manual Control Station (M) and Sole-
noid Valve (V) shown in Figure 4.
• Electric/Pneumatic actuation drain
connection to be inspected are from
the Manual Control Station (M) and
Dry Pilot Actuator (W) shown in Fig-
ure 5.
Step 13. Verify the ability for the DV-5a
Diaphragm to hold pressure as follows:
• With the diaphragm chamber pres-
surized per Step 11, temporarily
close the Diaphragm Supply Valve
(P), and then observe the Diaphragm
Gauge (K) for a drop in pressure.
• If a drop in pressure is noted, the
DV-5aDiaphragm is to be replaced
and/or any leaks must be corrected
before proceeding to the next step.
• If the Diaphragm Gauge (K) indicates
no drop in pressure, re-open the Dia-
phragm Supply Valve (P) and pro-
ceed to the next step.
Step 14. Open the Air Supply Valve
(S) and allow the system to automati-
cally re-establish its nominal system
air pressure. Observe the Automatic
Drain Valve (F) for leaks. If there are
leaks, determine/correct the cause of
the leakage problem.
• Nominal system air pressure for Elec-
tric/Electric Actuation is typically 15
psi (1,0 bar).
• Nominal system air pressure for
Electric/Pneumatic Actuation is per
Graph B.
Step 15. Open the System Shut-Off
Valve (X), as will be the case when
resetting a system after performing an
operational test.
Step 16. Previously in Step 9 for Elec-
tric/Pneumatic Actuation, the detec-
tion system was reset; however, at this
time for Electric/Electric Actuation, the
Solenoid Valve (V) is disconnected via
the Potter RCDS-1 Releasing Circuit
Switch, or equivalent.
For Electric/Electric Actuation, first
proceed to reset the electric detection
system in accordance with the manu-
facturer's instructions. After setting
the releasing panel, return the Potter
RCDS-1 to "green light - releasing
circuit system normal".
Step 17. Partially open the System
Main Control Valve (B). Slowly close the
Main Drain Valve (D) as soon as water
discharges from the Main Drain Valve
(D). Observe the Automatic Drain Valve
(F) for leaks. If there are leaks, deter-
mine/correct the cause of the leakage
problem before proceeding.
NOTICE
When the System Main Control Valve
(B) is partially opened, the pressure on
the DV-5aDiaphragm Chamber may
increase. This increase in pressure is
normal, and if the pressure is greater
than 300 psi (20,7 bar), the pressure
is to be relieved by partially and tem-
porarily opening the Manual Control
Station (M); however, do not allow
the pressure as indicated on the Dia-
phragm Gauge (K) to drop below the
supply pressure shown on the Water
Supply Gauge (J), since this action may
result in tripping of the DV-5aValve.
Step 18. Close the hinged cover on the
Manual Control Station (M) and insert a
new break rod in the small hole through
the top of the enclosing box.
Step 19. Fully open the System Main
Control Valve (B).
Step 20. After setting a fire protec-
tion system, notify the proper authori-
ties and advise those responsible for
monitoring proprietary and/or central
station alarms.

TFP1450
Page 20 of 28
NOTES
• Port Connections P1 through P7 are described in Figure 2.
External Trim Connections
C1
C2
C3
C4
C5
C6
C7
Diaphragm Supply Connection
Water Motor Alarm Connection
Air Supply Connection
Waterow Pressure Alarm Switch
Connection
Low Air Pressure Switch
Connection
Main Drain Connection
Drip Funnel Drain Connection
Item Description
A
B
C
D
E
F
G
H
J
K
L
M
DV-5aValve
System Main Control Valve
Waterow Pressure Switch
Main Drain Valve
System Drain Valve
Automatic Drain Valve
Alarm Test Valve
Alarm Control Valve (Optional)
Water Supply Gauge
Diaphragm Gauge
System Gauge
Manual Control Station
Item Description
N
P
Q
R
S
T
U
V
W
X
Manual Reset Actuator
Diaphragm Supply Valve
Diaphragm Supply Strainer
Inverted Flare Shut-Off Valve
Air Supply Valve
Air Pressure Relief Valve
Low Air Pressure Alarm Switch
Solenoid Valve
Not Used
System Shut-Off Valve
(Shown in Figure 4)
LOCATION
FOR OPTIONAL
ELECTRICALLY
SUPERVISED
N.O. ALARM
CONTROL
VALVE
C6
C7
C5
C3
C2 C4
C1
A
B
JK
D
E
F
G
M
N
P
Q
U
V
X
S
L
T
C
H
R
P1
P6
P7
P2
P3
P4
P5
FIGURE 12
DV-5aVALVE - DOUBLE INTERLOCK PREACTION ELECTRIC/ELECTRIC ACTUATION
(Refer to Figures 8 for specific Bills of Materials)