Honeywell MS4103 User Manual
128
VCZA; VCZB
Two-way Cartridge Cage Valves
are intended for hydronic
applications in a normal indoor
environment to control the flow of
hot water or chilled water glycol
solution to 60% concentration.
These valves are designed for zone
control of heating/cooling systems,
or to control individual fan coil,
baseboard radiator or convector
applications. Depending on the
model selected they can be
controlled by SPST or SPDT two
are intended for hydronic
applications in a normal indoor
environment to control the flow of
hot water or chilled water glycol
solution to 60% concentration.
These valves are designed for zone
control of heating/cooling systems,
or to control individual fan coil,
baseboard radiator or convector
applications. Depending on the
model selected they can be
controlled by SPST or SPDT two
position controller, tristate (floating), or modulating proportional
controller. For trouble-free operation of the product, good
installation practice must include initial system flushing,
chemical water treatment, and the use of a 50 micron (or finer)
system side stream filter(s). Remove all filters before flushing.
controller. For trouble-free operation of the product, good
installation practice must include initial system flushing,
chemical water treatment, and the use of a 50 micron (or finer)
system side stream filter(s). Remove all filters before flushing.
SPECIFICATIONS
Valve Type ............................................ Cartridge Cage Valve
Valve Type ............................................ Cartridge Cage Valve
Body Pattern ........................................ Two-way, Straight-through
Connection Type .................................. Sweat or , Female NPT
Controlled Medium ............................... Hot/Chilled Water with up to
60% Glycol
Flow characteristic ............................... Quick open, linear, or equal
percentage
Maximum Safe Operating Pressure ..... 300 psi (2068 kPa (20 Bar))
Close-off pressure ................................ 60 psid (414 kPa [4.1 bar])
Fluid Temperature Range ..................... 34 F to 203 F (1 C to 95 C)
Ambient Temperature Range ............... 32 F to 150 F (0 C to 65 C)
Stem Travel ........................................... 0.4 in. (10 mm)
Materials
(Body) .................................................. Bronze
(Stem) ................................................... Stainless Steel
(Seat) .................................................... EPDM O-ring seals on Noryl
piston
(Cartridge) ............................................ Ryton™, Noryl™ engineering
plastic
(Packing) .............................................. EPDM rubber
APPROVALS
Canadian Standards Association ........ CSA Certified
Canadian Standards Association ........ CSA Certified
ACCESSORIES
40007029-002—
40007029-002—
Wrench for cartridge (included with sweat valves and
all replacement cartridges)
FEATURES
• Quick open, linear, and equal percentage flow
characteristics available.
• Bi-directional installation.
• 3000-series valves for floating and modulating non-fail safe
• 3000-series valves for floating and modulating non-fail safe
applications
• 1000-series valves for two-position control
• High close-off rating independent of C
• High close-off rating independent of C
v
.
• Available with a variety of North American and international
pipe fittings.
• No tools required for actuator installation or removal.
• Actuator removal does not require draining system.
• Service is by replacement of cartridge, not valve body.
• Cartridge replacement rebuilds valve to factory-new
• Actuator removal does not require draining system.
• Service is by replacement of cartridge, not valve body.
• Cartridge replacement rebuilds valve to factory-new
condition.
Unitary Valve
VCZA; VCZb