Grindmaster AMERICAN METAL WARE 87710 - Manual (Page 17)

Page 18 American Metal Ware 87710E Coffee Urn
Safety Instructions
Attention: Read carefully before attempting to
install, operate or service your Alco solenoid
valve. Retain for future reference.
1.
2.
3.
4.
Read installation instructions - thoroughly. Failure to comply
can result in valve failure or system damage or personal injury.
Do not use solenoid valves on applications or fluid media not
specifically cataloged without prior approval of Alco
Engineering Department.
WARNING: DO NOT USE WITH FLAMMABLE OR
EXPLOSIVE FLUIDS OR GASES. DO NOT USE IN
EXPLOSIVE ATMOSPHERES.
Use on these elements can result in product damage or
personal injury.
Use of solenoid valves on applications not specifically
cataloged can result in valve failure and/or system damage or
personal injury. Do not utilize a solenoid valve on any system
where the system pressure can exceed the safe working
pressure of the valve.
CAUTION: Do not utilize a solenoid valve as a safety shut off.
5.
6.
7.
8.
9.
10.
11.
Do not exceed MOPD (Maximum Operating Pressure
Differential) or valve may fail to open when energized.
CAUTION: Always disconnect power source and
depressurize the system before working on solenoid valve
or system. If the power disconnect is out-of-sight, lock it
in the open position and tag to prevent unexpected
applications of power.
Direction of flow must correspond to Flow Direction
Schematics.
Before energizing valve, be sure source voltage and
frequency matches that on coil. Do not energize coil
unless coil is securely attached to valve. See Coil
Installation Instructions.
Prolonged use in excessive ambient temperature or
humidity may damage coils.
Do not dent or bend or use enclosing tube as lever. A
damaged enclosing tube may result in coil burnout or
inoperative valve.
Foreign matter in the valve may result in seal leakage,
sticking open or closed, or coil burnout. To prolong valve
life and ensure system cleanliness use a strainer
Installation
Valve and Solenoid Position
1.
2.
3.
4.
For ease of installation, an Alco solenoid valve can be installed
in any position. Gravity does not affect its operation.
NOTE: Although all valves can be operated in any position,
by mounting the valve upright there is less chance of
malfunction caused by the collection of foreign material
The solenoid coil can be rotated 360 O for ease of wiring.
If possible do not reduce the length of the solenoid coil wire leads,
so that if it becomes necessary to remove coil at a later date (for
valve cleanout, etc.) wire leads will not have to be disconnected.
To allow for removal of the solenoid coil without removing the valve
from its piping, allow at least 2 inches of clearance above the solenoid.
Be sure valve is installed so that its flow arrow on valve body
corresponds to direction of flow thru piping.
Coil Installation Instructions
1.
2.
3.
4.
5.
Wiring
1.
2.
3.
WARNING
If not properly grounded, a hazard of electrical shock may
exist. Install and ground unit in compliance with National,
state, and local electrical codes.
Before removing coil from valve, disconnect electrical power
source. Failure to do so will cause coil to burn out.
Verify coil type, voltage and frequency. This information
appears on the coil nameplate.
Place coil over the enclosing tube. Coil may be rotated 360 O
for easy wiring. It is recommended that coil lead connections
be soldered on D.C. and 24V -50/60 Hz. applications.
Install valve nameplate. Pull tab on valve nameplate and
peel off paper backing to expose adhesive. Stick nameplate
on top of coil housing and press nameplate down firmly. If
installing replacement coil, use valve nameplate supplied
with valve. Press nameplate down firmly.
Install voltage nameplate and coil retainer. Press coil
retainer down firmly to secure coil.
Be sure your wiring conforms to all local and national
electric codes.
For dual voltage coils, refer to the wiring schematic label on
side of coil.
The coil circuit of each solenoid valve should be protected by
adequate fuses.
Installation and Service Instructions
For
202CB and 204CD Series
General Purpose Solenoid Valve
53.20.10
May 1983
Supd’s 3-80
Identify valve elastomer code and coil code from valve model number
and reference rating from table.
Valves are rated for use on air or other non-hazardous, non-toxic fluids,
water and other aqueous, non-hazardous fluids, and steam.
FLUID TEMPERATURE RATING F O
Coil Code
AMG, AMC
180
250
180
180
250
Elastomer
Code
B
P
N
F
T
V
AHG, AHC
365