American Dryer Corp. ML-170 - Manual (Page 27)

113360 - 8 www.amdry.com 27
I. 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.
IMPORTANT: It is the installer’s or owner’s responsibility to see that the necessary or required water, 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
1. 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. For use of optional manual bypass, a second source
with the same piping and pressure requirements is required.
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!!
2. Water Connections
The water connection is made to the 3/4”-11.5 NH hose adaptor, located at the rear upper right side of the dryer.
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 two (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.
IMPORTANT: Appliance is to be connected to the water mains using a new hose set and the old hose set
should not be reused.