Bell & Gossett V1000461 Snap Zone Valve – ½” to 1” - Manual

Introduction and Safety
Safety message levels
About safety messages
It is extremely important that you read, understand, and follow the safety
messages and regulations carefully before handling the product. They are
published to help prevent these hazards:
• Personal accidents and health problems
• Damage to the product
• Product malfunction
Definitions
Safety message level Indication
DANGER:
A hazardous situation which, if not
avoided, will result in death or seri-
ous injury
WARNING:
A hazardous situation which, if not
avoided, could result in death or seri-
ous injury
CAUTION:
A hazardous situation which, if not
avoided, could result in minor or
moderate injury
WARNING:
The possibility of electrical risks if
instructions are not followed in a
proper manner
NOTICE:
• A potential situation which, if not
avoided, could result in undesira-
ble conditions
• A practice not related to personal
injury
Product Description
General description
WARNING:
California Proposition 65 warning! This product contains chemi-
cals known to the state of California to cause cancer and birth
defects or other reproductive harm.
NOTICE:
This product is not intended for potable water applications.
Features
• Integrated micro switch with floating contact. This switch allows direct
operation of a pump or fan unit.
• Thermoelectric actuator. This actuator opens the snap zone valve when
the thermostat closes, signalling a need for heat. As long as heat is re-
quired, the snap zone valve is kept in the open position by a built-in con-
trol switch, which meters small amounts of electricity to the actuator.
When the thermostat opens, indicating the need for heat has been satis-
fied, a return spring in the snap zone valve slowly closes the valve.
Required device
A safety isolating transformer must always be used.
Rule-of-thumb formula:
• p
transformer
= 6W x n
• n = Number of snap zone valve actuators
INSTRUCTION MANUAL
V1000461
Snap Zone™ Valve -
½” to 1”
Installation, Operation and
Service Instructions
Installer: Please leave this manual for the owner’s use.
Product warranty
Coverage
Xylem undertakes to remedy defects in products from Xylem under these
conditions:
• The faults are due to defects in design, materials, or workmanship.
• The faults are reported to a Bell & Gossett representative within the
warranty period
• The product is used only under the conditions described in this manual.
• The monitoring equipment incorporated in the product is correctly
connected and in use.
• All service and repair work is done by Xylem-authorized personnel.
• Genuine Bell & Gossett parts are used.
• Only Ex-approved spare parts and accessories authorized by Xylem are
used in Ex-approved products.
Limitations
The warranty does not cover defects caused by these situations:
• Deficient maintenance
• Improper installation
• Modifications or changes to the product and installation made without
consulting Xylem
• Incorrectly executed repair work
• Normal wear and tear
Xylem assumes no liability for these situations:
• Bodily injuries
• Material damages
• Economic losses
Warranty claim
Xylem products are high-quality products with expected reliable operation and
long life. However, should the need arise for a warranty claim, then contact
your Xylem representative.
Snap Zone valves are precision engineered four wire thermoelectrically
operated valves designed for hydronic heating and cooling systems.