Johnson Controls tyco AMD-1 Bedienungsanleitung
Model AMD-1 Automatic Air Maintenance Device
Pressure Reducing Type with
Field-Adjustable Pressure Regulator
Page 1 of 4 FEBRUARY 2020 TFP1221
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 Model AMD-1 Automatic Air
Maintenance Device is an automatic,
field-adjustable, pressure reducing
device. It is used to control the pres-
sure in a dry pipe sprinkler system, pre-
action system, or dry pilot line system
of a dry pilot actuated deluge or preac-
tion valve.
The Model AMD-1 Device is utilized
in applications where there is a com-
pressed air (or nitrogen) source con-
trolled at a higher pressure than the
desired system pressure. Pressure
sources include plant air supplies with
their own automatic compressor con-
trols or nitrogen supplies with single-
stage, cylinder-mounted pressure
regulators.
The Model AMD-1 Automatic Air Main-
tenance Device is a re-designation for
the Central Model D-2, Gem Model
F324, and Star Model S460.
NOTICE
The Model AMD-1 Automatic Air Main-
tenance Devices described herein must
be installed and maintained in compli-
ance with this document and with the
applicable standards of the NATIONAL
FIRE PROTECTION ASSOCIATION, in
addition to the standards of any author-
ities having jurisdiction. Failure to do so
may impair the performance of these
devices.
Owners are responsible for maintain-
ing their fire protection system and
devices in proper operating condition.
The installing contractor or sprinkler
manufacturer should be contacted
with any questions.
Installation
The TYCO Model AMD-1 Automatic
Air Maintenance Device should be
installed in the horizontal position as
shown in Figure 1, as well as in accor-
dance with the following instructions:
NOTICE
Moisture build-up can adversely affect
performance. Suitable consideration
must be given to the removal of exces-
sive moisture from the compressed air
supply.
1. Make connections a minimum of
1/2 in. (DN15) pipe size between
the inlet air supply and the Model
AMD-1 Device, as well as between
the Model AMD-1 Device and the
system to pressurize.
2. Place a 1/2 in. (DN15), non-spring
loaded, rubber-faced, swing-type
check valve between the Model
AMD-1 Device and the system to
pressurize. A check valve of this
type is provided in the air supply
trim of TYCO dry pipe and preac-
tion valves.
Technical
Data
Approvals
UL and C-UL Listed
FM Approved
NYC Approved under MEA 206-02-E
Maximum Inlet Air (or Nitrogen)
Supply Pressure
200 psi (13,8 bar)
Field-Adjustable Outlet Pressure
Range
5 to 70 psi (0,4 to 4,8 bar)
Assembly
Major components illustrated in Figure
1 are factory assembled with galva-
nized steel nipples and malleable iron
pipe fittings.
Operation
The By-Pass Valve in the Model AMD-1
Automatic Air Maintenance Device is
opened to quickly fill the system during
initial pressurization. Once the required
system pressure has been reached,
the By-Pass Valve is closed and the
Air Supply Control Valve is left open to
place the Model AMD-1 Device in auto-
matic operation.
When there is a small leak in the
system, the Pressure Regulator auto-
matically maintains system pressure at
the preset level. The 3/32 in. (2,4 mm)
orifice in the Restrictor Check Valve
limits the flow of air from the Pressure
Regulator into the system to a value
significantly less than that exhausted
by the operation of a 5.6 K-factor
sprinkler.
TFP1221
Page 2 of 4
Setting
Procedure
The TYCO Model AMD-1 Automatic
Air Maintenance Device must be
set in accordance with the following
instructions:
1. Determine the pressure that meets
the minimum requirements of the
system to pressurize.
2. Close the Model AMD-1 By-Pass
Valve, and close the Model AMD-1
Air Supply Control Valve.
3. Open the control valve in the air
supply trim of the system to pres-
surize and then reduce the system
air pressure to 0 psi.
4. Close the control valve in the
air supply trim of the system to
pressurize.
5. Remove the system pressure gauge
from its connection and temporari-
ly install it in the 1/4 in. NPT Model
AMD-1 Gauge Test Port.
CAUTION
Before removing the plug, make certain
that the piping to which the Model
AMD-1 Gauge Test Port is connected
is at 0 psi. Failure to do so may result
in personal injury or property damage.
6. Open the Air Supply Control Valve
in the Model AMD-1 Device.
7. While observing the relocated pres-
sure gauge, adjust the output pres-
sure of the Pressure Regulator. Pull
the knob out and away from the
Pressure Regulator body and then
slowly turn the knob clockwise, as
viewed from the knob end of the
Pressure Regulator, to increase
pressure, and counter-clockwise to
decrease pressure.
When decreasing pressure, the air
pressure must be relieved down-
stream of the Pressure Regulator
by temporarily opening the control
valve in the air supply trim of the
system to pressurize, assuming that
the system to pressurize is at 0 psi.
After the Pressure Regulator is set,
push the knob in and towards the
Pressure Regulator body to snap it
in a locked position.
8. Close the Air Supply Control Valve
in the Model AMD-1 Device.
9. Return the system air pressure
gauge to its normal location. Re-
install the 1/4 in. pipe plug in the
Model AMD-1 Gauge Test Port. Ap-
ply pipe-thread sealant sparingly to
the plug threads only.
CAUTION
Before removing the pressure gauge,
make certain that the piping to which
the Model AMD-1 Gauge Test Port is
connected is at 0 psi. Failure to do so
may result in personal injury or prop-
erty damage.
10. Open the control valve in the
air supply trim to the system to
pressurize.
11. Open the Air Supply Control Valve
in the Model AMD-1 Device.
12.Open the By-Pass Valve in the
Model AMD-1 Device.
13. Close the By-Pass Valve after the
system is pressurized to approxi-
mately 5 psi (0,4 bar) less than the
minimum required system pressure
determined in Step 1.
14. After the system pressure stabi-
lizes, note the value and compare
with the requirement. Re-adjust the
Pressure Regulator, as required.
NOTICE
If the system was over-pressurized
during manual fill, open a suitable
connection to the system and manu-
ally reduce the pressure to the desired
value. The Model AMD-1 Automatic Air
Maintenance Device then automatically
maintains the preset system pressure.
The Restrictor Check Valve prevents
the Pressure Regulator from bleeding
down the system pressure.
In order to minimize the time for system
trip in the event of a sprinkler opera-
tion, set the system pressure at the
minimum required value.
2"
(50,8 mm)
16-1/8""
(409,6 mm)
8-1/2"
(215,9 mm)
3-1/4"
(82,6 mm)
(NORMALLY
CLOSED)
1/2" NPT
INLET CONNECTION
(FROM COMPRESSED
AIR SUPPLY)
1/2" NPT
OUTLET
CONNECTION
AIR SUPPLY
CONTROL VALVE
(NORMALLY OPEN)
P/N 46-048-1-002
PRESSURE
REGULATOR
(ADJUSTABLE)
(TO SYSTEM)
STRAINER
RESTRICTOR
CHECK VALVE
P/N 46-047-1-004
P/N 92-324-1-012
P/N 52-353-1-002
P/N 92-326-1-003
1/4" NPT
GAUGE
TEST PORT
BY-PASS VALVE
LABEL
FIGURE 1
MODEL AMD-1
AUTOMATIC AIR MAINTENANCE DEVICE
TFP1221
Page 3 of 4
Care and
Maintenance
The TYCO Model AMD-1 Automatic
Air Maintenance Device must be main-
tained and serviced in accordance with
the following instructions, in addition to
any specific requirements of the NFPA.
Any impairment must be immediately
corrected.
NOTICE
Before closing a fire protection system
main control valve for maintenance
work on the fire protection system
that it controls, obtain permission to
shut down the affected fire protec-
tion system from the proper authori-
ties and notify all personnel who may
be affected by this action.
It is recommended that accumulated
moisture be removed from air supply
moisture filtration equipment at least
quarterly. More frequent inspections
may be necessary in particularly humid
environments.
After placing a fire protection system
in service, notify the proper authorities
and advise those responsible for moni-
toring proprietary and/or central station
alarms.
Responsibility lies with owners for the
inspection, testing, and maintenance of
their fire protection system and devices
in compliance with this document, as
well as with the applicable standards
of the NATIONAL FIRE PROTECTION
ASSOCIATION (for example, NFPA 25),
in addition to the standards of any other
authorities having jurisdiction. Contact
the installing contractor or sprinkler
manufacturer regarding any questions.
Automatic sprinkler systems are rec-
ommend to be inspected, tested,
and maintained by a qualified Inspec-
tion Service in accordance with local
requirements and/or national code.
The Model AMD-1 Device must be
inspected quarterly in accordance with
the following instructions:
1. Verify that the By-Pass Valve is
closed.
2. Close the Model AMD-1 Air Sup-
ply Control Valve and clean out the
1/4 in. Strainer located at the inlet
to the Restrictor Check Valve. Be
sure to reinstall the strainer screen
and tighten the cap securely.
3. Open the Model AMD-1 Air Sup-
ply Valve and verify that the control
valve in the air supply trim to the
system to pressurize is open.
4. Verify that the system pressure is
essentially the same as the previ-
ously established requirement. If
not, adjust the system pressure as
follows:
a. Close the system’s main con-
trol valve and open the main
drain valve. If the system is so
equipped, close the Accelera-
tor Control Valve.
b. Follow Steps 1 to 14 in the
Setting Procedure section.
c. Slowly open the Accelerator
Control Valve, as applicable.
d. Slowly open the main con-
trol valve. After water begins
to ow, slowly close the main
drain valve, then completely
open the main control valve.
The Model AMD-1 Automatic
Air Maintenance Device is now
ready for service.
Limited
Warranty
For warranty terms and conditions, visit
www.tyco-fire.com.
Ordering
Procedure
Contact your local distributor for avail-
ability. When placing an order, indi-
cate the full product name, including
description and Part Number (P/N).
Model AMD-1 Device
Specify: Model AMD-1 Automatic Air
Maintenance Device, P/N 52-324-2-002
Replacement Parts
Specify: (description), P/N (specify per
Figure 1)
TFP1221
Page 4 of 4
NATIONAL FIRE PROTECTION ASSOCIATION and NFPA are registered trademarks of National Fire Protection Association
1400 Pennbrook Parkway, Lansdale, PA 19446 | Telephone +1-215-362-0700
© 2020 Johnson Controls. All rights reserved. All specifications and other information shown were current as of document revision date and are subject to change without notice.
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