Veris VZ2 Series Installation Manual

Installation Guide
Valves & Actuators
Regulatory Compliance and Safety Information
Electrical equipment should be installed, operated, serviced,
and maintained only by quali ed personnel. No responsibility
is assumed by Veris Industries for any consequences arising
out of the use of this material.
Carefully read these instructions and all information relevant
for this product before trying to install it. Technical literature
and declarations of conformity can be accessed on the Veris
website, www.veris.com.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION OR
ARC FLASH
• Turn off all power supplying equipment before working on
the equipment.
Failure to follow these instructions will result in
death or serious injury.
NOTICE
RISK OF EQUIPMENT DAMAGE
• Only use manual override when power is off.
Failure to follow these instructions will result in
damage to the gear train or other mechanical damage.
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Product Overview
VZ2 Series Actuated Control Valves are designed for closed-loop HVAC hydronic heating and cooling systems.
These two-position spring return valves are used with thermostats or BAS to control fluid flow in a fan coil unit,
baseboard heating, or radiant application. The VZ2 Series valves are available in various Cv's and actuator voltages
Veris Industries
Stratford Park 5
of either 24 or 120 VAC.
Telford TF3 3BL
United Kingdom
Product Identification
Size (DN)
VZ2
2 = 1/2"
3 = 3/4"
Accessories for Inverted Flare Connection Valves
3/4" inverted flare bodies accept the following adapters to copper pipe:
Part Number Description
436-220 Union nut and coupling assembly, female for 1/2" (5/8" O.D.) copper, 1-1/16" long
436-252 Union nut and coupling assembly, female for 3/4" (7/8" O.D.) copper, 1-27/32" long
Specifications
System Static Pressure Limits 400 psi (2758 kPa)
Fluid/Ambient Temp. Limits 32 to 200 °F (fluid) @ 104 °F (ambient) (0 to 93 °C @ 40 °C)
Power Requirements 6.5 watts, 7.5 Va
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Other companies' trademarks are hereby acknowledged to belong to their respective owners.
VZ2 Series
Zone Valve Bodies and Actuators
Ports
Cv
-
N = NPT
"Zone" A = 2-position NC = Normally closed
F = Flare
1 = 1
2 = 2.5
3 = 3.5
5 = 5
7 = 7.5
Service Hot and chilled water models, up to 50% glycol
Close-off See table below
Seat Leakage ANSI class IV (0.01%) with pressure at inlet (B-port/A-port, if 3-way)
Body Forged brass
Stem Nickel-plated
Seat Brass
Paddle Buna N
Actuator Voltage 24 Vac @ 50/60 Hz,
120 Vac @ 60 Hz
Actuator Leads 18 in. (0.46 m) wire
Shipping Weight 2.25 lbs (1020 g), actuator/valve assembly
WARRANTY
Limited Warranty 2 years
Control State Voltage
A
24 Vac
NO = Normally open 120 Vac
Example:
VZ2 2 N 2 - A
2-position zone valve, 2-way, 1/2" NPT, 2.5 Cv, 24V,
Normally Closed with Aux Switch
AUX
S
S = SPST
NC 24 S
0823