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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. 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!!
Water Connections
The water connection is made to the 3/4”-11.5 NH hose
adaptor, located in the upper right 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.
Consistent gas pressure is essential at all gas connections.
It is recommended that a 1-inch (2.54 cm) pipe gas loop be
installed in the supply line servicing a bank of dryers. An
in-line pressure regulator must be installed in the gas supply
line (header) if the (natural) gas pressure exceeds 12.0 in
WC (29.9 mb) pressure.
NOTE:
A water column test pressure of 3.5 in WC (8.7 mb)
for natural gas and 10.5 in WC (26.1 mb) for propane
dryers is required at the gas valve pressure tap of each
dryer for proper and safe operation.
A plugged tap 1/8” N.P.T. minimum, accessible for a
pressure gauge connection, must be installed in the main
gas supply line immediately upstream of the dryers.
IMPORTANT:
Pipe joint compounds that resist the action
of natural gas and propane gas must be used.
Test all connections for leaks by brushing on a soapy
water solution (liquid detergent works well).
!
WARNING
Never test for leaks with a flame!!!
Содержание ML-96
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