Fire Suppression System

Fire Suppression System
DESIGN AND INNOVATION
Fire Suppression
System
(FSS)
Installation/User’s/Parts Manual
American Dryer Corporation
88 Currant Road
Fall River, MA 02720-4781
Telephone: (508) 678-9000 / Fax: (508) 678-9447
E-mail: techsupport@amdry.com
www.amdry.com
013003JEV/wmarelli
Part No. 113166
FSS In Action
The exclusive Fire Suppression System (FSS) will extinguish fires that may start
in the drying basket (tumbler). A series of sensors positioned throughout the
basket (tumbler) and interfaced with the microprocessor will trigger the FSS
water jet(s) to quickly extinguish the flames. The water jet(s) remain on for 2
minutes and will automatically activate again if a fire condition remains or
reignites. While the water jet(s) are activated, the basket (tumbler) will jog to
move the water throughout the load. The microprocessor will display that the
system was activated and will continue to display until the dryer is attended to.
We have tried to make this manual as complete as possible and hope you will find
it useful. ADC reserves the right to make changes from time to time, without
notice or obligation, in prices, specifications, colors, and material, and to change
or discontinue models.
1
BEFORE YOU START!
CHECK LOCAL CODES AND PERMITS
Call your local water company or the proper municipal authority for information regarding local codes.
IMPORTANT: It is your responsibility to have ALL plumbing connections made by a qualified
professional to assure that the plumbing installation is adequate and conforms to local,
state, and federal regulations or codes.
IMPORTANT: It is the installation or owners responsibility to see that the necessary or required
water, water pressure, pipe size, or connections are provided. Manufacturer assumes
no responsibility if the fire suppression system (FSS) is not connected, installed, or
maintained properly.
INSTALLATION
1. Requirements
The connection point to the electric water solenoid valve is a 1/2” M.P.T., the FSS must be supplied with
a minimum water pipe size of 1/2-inch and be provided with 40 PSI +/- 20 PSI (2.75 bar +/- 1.37 bar)
of pressure. For use of optional manual bypass, a second source with the same piping and pressure
requirements is required.
Flexible 1/2 feeds must be provided to avoid damage to electric water solenoid valve by vibration.
IMPORTANT: Flexible supply line/coupling must be used. Solenoid valve failure due to hard
plumbing connections WILL VOID WARRANTY.
If the rear area of the dryer, or the water supply is located in an area where it will be exposed to cold/
freezing temperatures, provisions must be made to protect these water lines from freezing.
WARNING: If the water in the supply line or water solenoid valve freezes, the FSS will be
INOPERATIVE!!
IMPORTANT: Appliance is to be connected to the water mains using a new hose-set and the old
hose-sets should not be reused.
2
2. Water Connections:
The water connection is made to the 1/2” M.P.T.
bushing of the electric water solenoid valve located
at the rear upper left area of the dryer (see photo).
The water solenoid valve has a 3/8” M.P.T.
connection and a 1/2” bushing is supplied to
provide the minimum 1/2-inch supply (feed) line.
Flexible supply line/coupling must be used in effort
to avoid damage to electric water solenoid valve.
IMPORTANT: Flexible supply line/coupling must be used. Solenoid valve failure due to hard
plumbing connections WILL VOID WARRANTY. It is recommended that a filter
or strainer be installed in the water supply line.
Typical water supply...
3
OPTIONAL MANUAL BYPASS
Provisions are made in the dryer fire suppression system (FSS) for the installation of an optional manual bypass.
Depending on the model dryer, the connections for the manual bypass are made at the “T” or “four way” fitting
located in the outlet supply side of the water solenoid valve. The use and connections of this manual bypass are
at the option or discretion of the owner.
The water connection for the manual bypass is made to the “T” or “four way” fitting which has a 3/8” F.P.T. and
a coupling must be used to provide the minimum 1/2-inch supply (feed) line.
If the rear area of the dryer, or the water supply is located in an area where it will be exposed to cold/freezing
temperatures, provisions must be made to protect these water lines from freezing.
WARNING: If the water in the supply line or water solenoid valve freezes, the FSS will be
INOPERATIVE!!
The manual ball cock shutoff valve must be located outside of the dryer at a distance from the dryer where it
is easily accessible.
3. Electrical Requirements
No independent external power source or supply connection is necessary. The 24 volt power to operate the
fire suppression system (FSS) is accomplished internally in the dryer (from the dryer controls).
WARNING: Electrical power must be provided to the dryer at ALL times. If the main electrical
power supply to the dryer is disconnected, the FSS is INOPERATIVE!!
4
Fire Suppression System (FSS) Theory of Operation
While the dryer is in an idle state or 20-seconds after the heat turns off, the Phase 7 control monitors the FSS
probe located in the top of the basket (tumbler) chamber and records the minimum temperature. If the minimum
recorded FSS probe temperature is no less than 120°F (48°C) and the control detects a 50° rise in temperature,
this will be the trip point and the FSS routine will activate.
While a drying cycle is in process and the heat has turned on at least once, the Phase 7 control monitors the
exhaust temperature transducer. If the drying cycle temperature set point is set greater than 160°F (71°C) and
the control detects an exhaust temperature rise 25°F greater than set point, this will be the trip point and the FSS
routine will activate. If set point is below 160°F (71°C) the trip point will be 185°F (85°C).
Once the FSS routine is activated, water will be injected into the basket (tumbler) chamber. Anytime water is
being injected into the basket (tumbler); the basket (tumbler) drive will turn the load for 1-second every
15-seconds. This process will continue for a minimum of 2 minutes. After 2 minutes has elapsed, the control will
check if the temperature remained above trip point, if so water will remain on. The control will continue to check
if temperature is above trip point every 30-seconds. If the water has been on for a constant 10 minutes, the
water will be turned off regardless of the temperature. If the temperature has dropped below trip point, the
control will turn off the water prior to 10 minutes.
SYSTEM RESET
After the microprocessor determines that the situation is under control and shuts the water being injected into the
basket (tumbler) off, the microprocessor display will read “FIRE SUPPRESSION SYSTEM WAS ACTIVATED,”
and the horn/tone will sound until reset manually.
To reset the microprocessor once the control displays “FIRE SUPPRESSION SYSTEM WAS ACTIVATED,”
press the red
key on the keyboard (touch pad).
OPL FSS SYSTEM CHECK PROCEDURE
The operation of the water solenoid valve can be tested to insure that the water supply system and valve are
functional. Before attempting system check, be sure that ALL water supply shutoff valves to the dryer are in the
OPEN position, and the dryer must be in the “READY” mode where no cycle is loaded or in progress.
The procedure is as follows:
1. Press and hold the RED STOP key (while in “READY” mode and no cycle in progress).
2. Press and hold the “A” key.
3. Water valve will open and water will be dispensed into basket (tumbler) area as long as both keys are held.
IMPORTANT: This is a test function only and the keys should be held and system activated for only
a second or so, otherwise water will accumulate in various places in the dryer.
5
Fire Suppression System
(FSS)
PARTS BREAK DOWN
Replacement parts can be obtained from your reseller or the ADC factory. When ordering replacement parts
from the factory, you can FAX your order to ADC at (508) 678-9447 or telephone your order directly to the
ADC Parts Department at (508) 678-9000. Please specify the dryer model number and serial number in
addition to the description and part number, so that your order is processed accurately and promptly.
The illustrations on the following pages may not depict your particular dryer exactly. The illustrations are
composite of the various dryer models. Be sure to check the descriptions of the parts thoroughly before ordering.
We have tried to make this manual as complete as possible and hope you will find it useful. ADC reserves the
right to make changes from time to time, without notice or obligation, in prices, specifications, colors, and material,
and to change or discontinue models.
Illus. No.
Part No.
Qty.
1
2
3
4
5
6
7
8
9
10
11
12
13
165114
143220
143251
143208
143099*
311588
143303
143155
150430
150301
143581
142888
824081
1
1
1
2
6’
1
1
1
2
2
1
1
1
*
Description
Fire Suppression System (FSS) Solenoid Valve 24V 50/60 HZ
3/8” F.P.T. Brass Tee
3/8” M.P.T. Brass Plug
3/8” Comp x 3/8” M.P.T. Brass Connector
3/8” OD x 0.035 Wall Copper Tubing
Sprinkler Head Mounting Plate
3/8” N.P.T. Brass Locknut
3/8” Brass Elbow 90°
#10 x 1/2” Self Drilling Screw
#8-18 x 7/16” TEK Screw
3 GPM 3/8” F.P.T. Spray Nozzle
1/2” to 3/8” Bushing For Fire Suppression System (FSS) Valve
R.C. Network Assembly
Sold by the foot.
6
Illus. No.
Part No.
Qty.
1
822752
1
2
3
4
5
154007
390390
150301
122647
2
1
2
1
Description
Fire Suppression System (FSS) Temperature Probe Assembly
(includes illus. nos. 1 through 5)
Push On Fastener
Sensor Bracket ONLY
#8-18 Phillips Pan Head TEK Screw
Connector ONLY
(does not include terminals)
7
ADC 113166
1 - 02/19/03-20
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