Install Instructions

REPAIR KITS
Valve Seat Material Kit #
202CB Buna N –
202CB Rulon –
202CB Ethylene Propylene K-1064
Valve Seat Material Kit # 1/4" Orice Only
204CD Buna N K-1072 K-1162
204CD Rulon K-1077 –
204CD Ethylene Propylene K-1076 –
FLUID TEMPERATURE RATING °F
Elastomer Code Coil Types AMG, AMC
B 180°
P 250°
N 180°
F 180°
Elastomer Code Coil Type AHG, AHC
T 365°
Identify the valve elastomer code and coil code from valve
model number and reference temperature rating above.
Valves are rated for use on air or other non-hazardous, non-
toxic uids, water and other aqueous, non-hazardous uids
and steam.
WIRING
1. Be sure your wiring conforms to all local and national elec-
trical codes.
2. For dual voltage coils, refer to the wiring schematic label
on the side of the coil.
3. The coil circuit of each solenoid valve should be protected
by adequate fuses.
Warning: If not properly grounded, a hazard of electrical
shock may exist. Install and ground the unit in compliance
with national, state, and local electrical codes.
DISASSEMBLY
Disassemble in the same general order as indicated in the
exploded view illustrations, except as noted in the following
steps:
1. Depressurize valve and disconnect electrical power
source.
2. Remove coil housing by lifting coil assembly from the
enclosing tube.
CLEANING
As with all valves, it may become necessary to clean them
periodically to keep them in peak operating condition. Any
cleaning methods or uids used should be compatible with
valve materials.
INSPECTION
1. All moving parts and elastomers should be clean in ap-
pearance without permanent set. Springs should be free
of corrosion. If any parts appear damaged, replace them
with a parts kit which contains all moving parts necessary
to rebuild the valve to an “as new” condition.
2. Inspect enclosing tube assembly for wear, exterior dents
or other conditions which would impair free movement of
the poppet and/or plunger assembly. Its interior should be
clean and free of any obstructions, be especially critical of
the valve seat area.
ASSEMBLY
1. Assemble in the reverse general order of disassembly.
2. Lubricate gasket and/or O-ring sparingly with compatible
lubricant.
3. All moving parts must move freely over the full length of
their intended travel.
4. Torque enclosing tube assembly to body 150 ± 10 in lbs.
TESTING
1. Apply correct voltage to the valve solenoid and cycle the
solenoid several times. A distinct click should be heard
each time the solenoid is energized.
2. Pressurize the valve and check for leaks. Note: Emerson
solenoid valves are equipped with a continuous duty sole-
noid coil, which when energized for an extended period of
time becomes hot to the touch…this is normal.
COILS
1. Junction box (AMG) is supplied as standard on all valves.
2. The following coil housings are available:
a. Conduit connection (AMC)
b. NEMA 1 - 18" leads (AML)
c. Open frame (AMF)
d. Spade connection (AMS)
TROUBLESHOOTING
1. Check system fuses, electrical wiring, and system source
voltage as specied.
2. Is ow direction arrow on valve the same as the system
ow direction?
3. Are all system relays operating?
4. Is system source pressure as specied?
5. Are all system components free from obstructions?
"K" indicates the part is supplied in the valve repair kit.
202CB & 204CD Exploded View