Install Instructions

ManualsBrandsTaco ManualsHeating Supplies1/2" Normally Open Potable Water Zone Sentry Valve (Sweat)

pplication:

he Taco Potable Water Zone Sentry valve is available in a 2-way

sweat configuration with either a normally open or normally closed

ctuator. Some typical installations would include a combination

domestic water-hydronic heating system, culinary installation or

ater shut off to a potable system.

Valve Installation:

1. On hot water applications, the valve body may be installed in any

orientation. On chilled water installations, do not install with the

actuator beyond 85° from the topmost position (see Figure B).

When the Zone Sentry is installed in a vertical run of pipe, the

valve may be installed in any orientation for either hot or chilled

water.

2. Before mounting the body, refer to Figure C for any clearance

requirements.

3. Use of a solder with a melting point below 600°F is recom-

mended. Do not overheat! Make sure the ball valve is in the

FULL OPEN position during soldering. Direct flame tip away

from the center of the valve. Cool valve quickly with a wet cloth.

4. Solder build-up on the ball valve may prevent proper opening

and closing of the valve. Actuate the actuator once or twice

and make sure the valve rotates fully.

5. Valve body can be submerged for leak testing before the

actuator is attached.

Actuator Installation / Wiring:

1. Actuator Removal: Remove the valve actuator prior to solder-

ing by pushing in and holding the release clip at the front of the

actuator and lifting upward approximately

⁄

" (see Figure D).

2. To re-assemble the actuator to the valve body: Position actua-

tor such that the “D” shaped valve stem aligns properly with the

“D” shaped actuator drive cavity. (Note: The “D” shaped stem

design allows for correct insertion every time.) Next, slide the

valve stem into the actuator cavity, push in and hold the release

clip until the actuator slips over the valve locking posts (see

Figure D). Once the actuator is flush to the valve body, let go

of the release clip. Using very little force, try to take the actua-

tor off of the valve body without using the release clip. Both

locking posts should be firmly attached to the actuator. If the

actuator slides up the stem, repeat the assembly process.

3. Changing the actuator orientation: The actuator may be

attached to the valve body in either direction (see Figure A). In

order to reverse the actuator orientation on the valve body, see

the actuator removal instructions in Step 1 with the following

exceptions. Instead of moving the actuator the full

⁄

", move it

nstruc

tion Sheet

tabl

ter

Zone

Sentr

102-484

SUPERSEDES: New EFFECTIVE: March 31, 2013

Plant ID# 001-4169

Two Position Head Placement.

Universal Body Placement.

May be installed in any position, any orientation.

ABB

Figure A

⁄

" CLEARANCE

⁄

" CLEARANCE

igure C

NOTE: Some power robbing thermostats require the use of a

resistor (always use the resistor provided by the thermostat

manufacturer with the Zone Sentry). Consult the thermostat

instructions for the resistor installation.

Permitted Angle of Installation on Chilled Water Applications

85°

Figure B

LOCKING

POST

Step 1:

Push in and hold release clip

at the front of the actuator.

Step 2:

Move actuator upward

approximately 3⁄4" to

disengage Locking Posts.

Figure D: Actuator

Removal

CAUTION: Sand or other contaminants can damage

the valves internal components and cause it to fail

prematurely. Precautions must be taken to prevent

contaminants from damaging the valve.

CAUTION: Actuator must be removed from the

valve body before soldering (see Figure D). Ball

valve must be in the full open position before sol-

dering. Valve shipped in the closed position.

Summary of content (4 pages)

PAGE 1
Instruction Sheet 102-484 Potable Water Zone Sentry SUPERSEDES: New EFFECTIVE: March 31, 2013 Plant ID# 001-4169 Application: The Taco Potable Water Zone Sentry valve is available in a 2-way sweat configuration with either a normally open or normally closed actuator. Some typical installations would include a combination domestic water-hydronic heating system, culinary installation or water shut off to a potable system.
PAGE 2
just high enough to clear the locking posts, rotate the actuator 180° and reinstall it on the locking post by following the previous instructions for reassembling the actuator. 4. The plug-in quick connects can be disconnected from the valve actuator for ease of wiring. Insert the corresponding wire into the quick connects and tighten by turning the screw. CAUTION: Do not jumper power/motor (24 VAC) connection terminals, even temporarily. This may cause damage to the thermostat’s heat anticipator. 3.
PAGE 3
Zone Valve Wiring Diagrams WARNING: Wiring connections must be made in accordance with all applicable electrical codes. WARNING : To prevent electrical shock, disconnect electric power to system at main fuse or circuit breaker box until installation is complete. When a service switch is installed, more than one disconnect switch may be required to deenergize this device for servicing.
PAGE 4
LIMITED WARRANTY STATEMENT Taco, Inc. will repair or replace without charge (at the company’s option) any product or part which is proven defective under normal use within one (1) year from the date code. In order to obtain service under this warranty, it is the responsibility of the purchaser to promptly notify the local Taco stocking distributor or Taco in writing and promptly deliver the subject product or part, delivery prepaid, to the stocking distributor.