Table of Contents
Advertisement
Water Information _____________________
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 ensure
that the plumbing installation is adequate and conforms to
local, state, and federal regulations or codes.
It is the installer's or owner's responsibility to see that the
required water pressure, pipe size, or connections are
provided. The manufacturer assumes no responsibility if
the fire suppression system is not connected, installed, or
maintained properly.
Installation
Water Supply
The fire suppression system must be supplied with a
minimum water pipe size of 1/2-inch (12.7 mm) and be
provided with 40 psi +/- 20 psi (2.75 bar +/- 1.37 bar) of
pressure.
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 fire suppression system will
be inoperative!!
Water Connections
The water connection is made to the 3/4"-11.5 NH hose
adaptor, which is shipped in the tumbler and must be installed
to the 1/2" N.P.T. water connection, located at the upper rear
of the dryer. A flexible supply line/coupling must be used in
an effort to avoid damaging the electric water solenoid valve.
NOTE: The 3/4"-11.5 NH is a standard hose coupling screw
thread. It is not to be confused with 3/4" N.P.T. The sealing
of an NH connection is made with a washer opposed to the
mating threads of an N.P.T. assembly. The 2 thread
designs are not compatible.
It is recommended that a filter or strainer be installed in the
water supply line.
IMPORTANT: Flexible supply line/coupling must be used.
Solenoid valve failure due to hard plumbing connections
will void warranty.
The dryer is to be connected to the water mains using a
new hose set and the old hose set should not be reused.
Optional Manual Bypass
Provisions are made in the dryer's fire suppression system
for the installation of an optional manual bypass. The
connections for the manual bypass are made at the "cross"
or "four way" fitting located in the outlet supply side of the
water solenoid valve. The manual ball cock shutoff valve
must be located outside of the dryer at a distance from the
dryer where it is easily accessible. The use and connection
of this manual bypass is at the option or discretion of the
owner.
18
The water connection for the manual bypass is made to the
"cross" or "four way" fitting, which has a 3/8" F.N.P.T. and a
coupling must be used to provide the minimum 1/2-inch (12.7
mm) supply (feed) line.
Electrical Requirements
No independent external power source or supply connection
is necessary. The 24-volt power to operate the fire
suppression system 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 fire suppression system is
inoperative!!
Preparation for Operation / Start-Up ___
The following items should be checked before attempting to
operate the dryer:
• Read all "CAUTION," "WARNING," and "DIRECTION"
labels attached to the dryer.
• Check incoming supply voltage to be sure that it is the
same as indicated on the data label. In the case of 208
VAC or 230/240 VAC, the supply voltage must match the
electric service exactly.
• GAS MODELS – Check to ensure that the dryer is
connected to the type of heat/gas indicated on the dryer
data label.
• GAS MODELS – Be sure that all gas shutoff valves are in
the open position.
• Be sure all back panels (guards) and electric box covers
are in place.
• Be sure the service doors are closed and securely in
place.
• Be sure the lint door/drawer is securely in place.
• Rotate the tumbler (drum) by hand to be sure it moves
freely.
• Check bolts, nuts, screws, terminals, and fittings for
tightness and security.
• Check that the vent is connected to the dryer and is
exhausted to the outdoors.
• STEAM MODELS – Check to ensure all steam shutoff
valves are open.
Preoperational Test ___________________
All dryers are thoroughly tested and inspected before leaving
the factory. However, a preoperational test should be
performed before the dryer is publicly used. It is possible
that adjustments have changed in transit or due to marginal
location (installation) conditions. Installer must instruct the
user on how to correctly operate the dryer before leaving.
Turn on electric power to the dryer.
Refer to the Operating Instructions for starting your particular
model dryer.
Gas Dryers
Open all shutoff valves.
American Dryer Corp.
112809 - 6
Advertisement
Table of Contents
