Installation - Tyco DN40 Manual

TFP1460
recommended that a System Shut-Off
Valve be installed above the Riser
Check Valve, as shown in Figure 1. The
System Shut-Off Valve should be a
listed or approved (as appropriate) in-
dicating valve with a supervisory
switch to monitor the normally open
position.
Detection System
The Double Interlock Preaction Sys-
tem With Electric/Pneumatic Actuation
Trim provides for electric operation of
the DV-5 Valve by a detection system
consisting of electrical devices such as
heat sensitive thermostats, smoke de-
tectors, and/or electric manual pull sta-
tions. Information on the various types
of separately ordered Solenoid Valves
that may be used with this trim pack-
age is given in Technical Data Sheet
TFP2180. Nominal installation dimen-
sions for the Double Interlock Preac-
tion System With Electric/Pneumatic
Actuation Trim are shown in Figure 3.
The deluge valve releasing panel
(automatic control unit) with battery
back-up, fire detection devices, man-
ual pull stations, and signaling devices
that are utilized with the Double Inter-
lock Preaction System with Elec-
tric/Pneumatic Actuation must be UL
Listed, ULC Listed, C-UL Listed, or FM
Approved, as applicable.
NOTES
Approval by Factory Mutual is contin-
gent on the use of an FM Approved
24VDC Solenoid Valve (P/N 52-287-1-
024 or P/N 52-287-1-124). FM only
approves solenoid valves for use in
non-hazardous locations.
Consult with the Authority Having Ju-
risdiction regarding installation criteria
pertaining to electric actuation cir-
cuitry.
The Double Interlock Preaction Sys-
tem With Electric/Pneumatic Actuation
Trim is provided with a Model FSV-1
Fail-Safe Valve (Item 5 - Fig. 2A, also
described in Technical Data Sheet
TFP1386); consequently, the release
circuit of the releasing panel need only
provide the standard 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 closes (especially while
operating under battery back-up), the
Fail-Safe Valve will have already auto-
matically operated to constantly vent
the DV-5 Diaphragm Chamber,
thereby preventing the DV-5 Dia-
phragm Chamber from becoming re-
pressurized and preventing an inad-
vertent closing of the DV-5 during a fire
event.
System Air Pressure Requirements
The required system air pressure for
the Double Interlock Preaction System
with Electric/Pneumatic Actuation is
shown in Graph A as a function of the
anticipated water supply pressure. It is
recommended that the system air
pressure be maintained by one of the
following methods:
• A maximum 200 psi (13,8 bar) plant
air supply in combination with the
Model AMD-1 Air Maintenance De-
vice 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.
• A maximum 3000 psi (206,9 bar)
nitrogen cylinder in combination with
the Model AMD-3 Nitrogen Mainte-
nance Device described in Techni-
cal Data Sheet TFP1241.
NOTES
The dew point of the air or nitrogen
supply, for a system exposed to freez-
ing conditions, must be maintained be-
low the lowest ambient temperature to
which the system piping will be ex-
posed. Introduction of moisture into
the system piping can create ice build
up which could prevent proper opera-
tion of the system.
Friction Loss
The nominal pressure loss versus flow
data for the Model DV-5 Deluge Valve
plus Riser Check Valve is provided in
Graph B.
Page 11 of 16

Installation

NOTES
1-1/2 inch (DN40) risers utilize a 2 inch
(DN50) Riser Check Valve in combina-
tion with the 1-1/2 inch (DN40) Model
DV-5 Deluge Valve.
Proper operation of the Model DV-5
Deluge Valves depends upon their trim
being installed in accordance with the
instructions given in this Technical
Data Sheet. Failure to follow the ap-
propriate trim diagram may prevent
the DV-5 Valve from functioning prop-
erly, as well as void listings, approvals,
and the manufacturer's warranties.
Field adjustments of the Air Mainte-
nance Device, Low Pressure Alarm
Switch, and Pressure Relief Valve are
required.
When using compressed air as op-
posed to compressed nitrogen for re-
frigerated area service, alternate air
supply connections with an air dryer
may be required by the Authority Hav-
ing Jurisdiction. The "1/2 Inch NPT
Connection For System Air Supply"
shown in Figure 2B is to be plugged
when using an alternate air supply
connection; the location of the Air
Pressure Maintenance is to be as
specified by the Authority Having Ju-
risdiction; and, Step 10 regarding the
adjustment of the Pressure Relief
Valve can be omitted, since the Pres-
sure Relief Valve in this case will be
ineffective.
The DV-5 Valve must be installed in a
readily visible and accessible location.
The DV-5 Valve and associated trim
must be maintained at a minimum tem-
perature of 40°F/4°C.
Heat tracing of the DV-5 Valve or its
associated trim is not permitted. Heat
tracing can result in the formation of
hardened mineral deposits that can
prevent proper operation.
The Model DV-5 Deluge Valve is to be
installed in accordance with the follow-
ing criteria:
Step 1. All nipples, fittings, and de-
vices 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-5 Valve must be
trimmed in accordance with Figure
2A/2B.
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