Installation - Tyco DV-5 Instruction Manual

TFP1484
Page 10 of 16
Valve Size

Installation

DV-5 Preaction Type A Valves are to
be installed in accordance with this
section.
General Instructions
Proper operation of the DV-5 Pre-
action Type A Valve depends upon
installation in accordance with the
instructions given in this technical data
sheet. Failure to follow the appropriate
steps may prevent the DV-5 Valve with
Preaction Type A Trim from function-
ing properly, may void the manufactur-
er's warranty, and will void listings and
approvals.
The DV-5 Preaction Type A Valve must
be maintained at a minimum tempera-
ture of 40°F (4°C).
NOTICE
Heat tracing of the DV-5 Preaction Type
A Valve is not permitted. Heat tracing
can result in the formation of hardened
mineral deposits that are capable of
preventing proper operation.
Nominal Dimensions in Millimeters
Nominal
A B*
DN40 376 346
DN50 390 346
DN80
536 432
DN100 645 478
DN150 759 500
DN200
936 529
*
Minimum Clearance
*
E D
LEFT VIEW
DV-5 PREACTION TYPE A VALVE
NOMINAL INSTALLATION DIMENSIONS
Notes:
• Install the valve in a readily visible and
accessible location.
• Ensure the fully assembled Preaction
Type A Trim is installed in accordance
with Figure 3.
• Ensure suitable provision for disposal
of drain water. Direct drainage water so
that it will not cause accidental damage
to property or danger to persons.
Step 1. Connect the Diaphragm
Chamber Supply Control Valve to the
inlet side of the system's Main Control/
Shut-off Valve in order to facilitate
setting of the Preaction Type A Trim
(Ref. Figures 3, 5 and 6).
Step 2. Install a suitable automatic
supervisory air (nitrogen) supply,
as described in the Technical Data
section, in accordance with the refer-
enced Technical Data Sheet. Set the
device according to Graph B.
Step 3. Install a desiccant dryer, when
required for the supervisory air supply,
between a drip leg and the Model
AMD-1 Air Maintenance Device or
C* D E*
356 236 323
356 243 316
356 276 284
356 314 275
356 380 286
406 420 309
*
B
FRONT VIEW
FIGURE 4
F* G
221 178
221 155
184 111
176 68
140 36
88 N/A
*
C
*
F
A
G
between the Automatic Supervisory Air
Supply and the Preaction Type A Trim.
Step 4. Wire the Supervisory Low Pres-
sure Alarm Switch to the supervisory
alarm initiating circuit of an alarm panel.
Step 5. Make conduit and electrical
connections in accordance with the
requirements of the authority having
jurisdiction.