Instruction Sheet

Zone Sentry 3-way Diverting Valve

102-426

EFFECTIVE: April 1, 2011 SUPERSEDES: New

Plant ID# 001-3997

Application:

Taco Zone Sentry Zone Valves can be used in a wide variety of heating and (non condensing) cooling applications, primarily designed for use with baseboard, fan coils, radiators, convectors, air handlers, heat pumps and radiant applications. Refer to the Product Specifications section for choosing the correct style valve for your application.

General Installation Information / Operation:

The Zone Sentry is the most technologically advanced zone valve ever made. It’s also simple to install and operate. The valve body can be installed in any position and in any orientation. The actuator’s electrical connections must be mounted over the port that requires flow when power is applied to the actuator. (See Figure 1.) The back of the valve makes for a simple, secure and fast wiring hook-up. A green LED light shows full functionality of the valve’s operation and thermostat status. Under a no power situation the manual override button located on the top of the valve allows the ball to be rotated up to 90°.

CAUTION: Actuator must be removed from the valve body before soldering (see

Figure 3). Ball valve must be in the full open position to the port that is being soldered.

Figure 3: Operator

Removal

Step 1:

Push in and hold release clip at the front of the actuator.

Step 2:

Move actuator away from the valve body approximately 3⁄4" to disengage locking posts and stem.

L OCKING

POST

CAUTION: Installation should only be performed by a qualified professional.

Figure 1

NO CALL

A

C

ELECTRICAL

CONNECTION

B

W

A

L

L

CALL

CALL

A

ELECTRICAL

CONNECTION

C

B

3 ⁄

4

" CLEARANCE

1 3 ⁄

8

" CLEARANCE

NO CALL

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

Figure 2

Use of a solder with a melting point below 600°F is recommended. Do not overheat! Make sure the ball valve is in the FULL OPEN position to the port that is being soldered. Direct flame tip away from the center of the valve.

Cool valve quickly with a wet rag to prevent overheating.

Solder build-up on the ball valve may prevent proper opening and closing of the valve.

Valve body may be submerged for leak testing before the actuator is attached.

Step by Step Valve Installation:

1. Remove actuator from the valve body. Push in and hold the release clip at the front of the actuator, pull the actuator away from the body (approx.

3

⁄

4

"). (See

Figure 3.)

2. Open the valve to the full open position of the first port to be soldered (port A or B).

3. Clean and prepare the valve and pipe using the proper techniques required prior to soldering.

4. Fit the valve into the piping system.

5. Solder the port of the valve that you placed in the full open position, directing the flame away from the center of the valve.

6. Turn the opening of the valve to the second port to be soldered. (the opposite port of the one just completed.)

7. Repeat step 5 for the second port.

8. Solder the third port (bottom port). This port is always in the full open position.

9. Immediately cool the valve with a wet towel.

Installing the Actuator on the Valve Body:

1. Position the actuator so that the “D” shaped valve stem aligns with the “D” shaped drive cavity in the operator

2. Slide the actuator onto the valve stem and rotate to align the valve’s 2 locking posts with the mating holes in the actuator. Push in the release clip and slide the actuator down flush to the valve body.

3. Verify that the actuator is locked by pulling it away from the valve body without pushing in the clip.

(Do not use excessive force.)

Mode of Operation:

1. Upon initial field installation the capacitor requires a full charge, up to 25 seconds before the valve starts to turn. Charging time will vary (typically less) during normal operation.

2. When the capacitor is charging the green LED light will FLASH.

3. Once the capacitor is charged the green LED will stop flashing but remain ON, at this point the valve’s actuator will rotate the ball valve. The green

LED will remain ON as long as the thermostat is calling (the unit is powered).

4. Once the thermostat is satisfied the green LED will turn OFF and the valve will rotate 90° into its normal position or non powered position.

WARNING: Do not use zone valves on indirect water heaters without a tempering device.

Product Specifications:

Maximum Operating Pressure:

Maximum Shutoff Pressure:

Fluid Temperature Range:

Service:

Ball Rotation Speed:

Seat Leakage:

Electrical Rating:

Power Consumption, Charging:

Power Consumption, Power On:

Heat Anticipator Setting:

End Switch Rating:

300 PSI (2,100 kPa)

125 PSI (875 kPa)

20° to 240°F, (-7° to 115°C) @ 135°F (57°C) ambient

Closed systems

Optional open system configuration (high oxygen content)

Up to 50% Glycol

Full Open to Full Close (90° turn), 5 seconds (after charge time)

Full Close to Full Open (90° turn), 5 seconds (after charge time)

Drop-Tight Close-Off

24 VAC, 60 HZ, 0.48 Amps

Do not use more than 12 zone valves per 40VA transformer.

11.4 Watts, 0.48 Amps max

1.44 Watts, 0.06 Amps max

0.5 Amps

1 Amp @ 24 VAC

Materials of Construction, Actuator:

Body:

Gears:

High Performance Engineered Polymer

High Performance Internally Lubricated Engineered Polymer

Materials of Construction, Valve:

Body:

Stem:

Press Ring:

Ball:

Seat:

O-rings:

Forged Bronze

Brass

Brass

Brass (Chrome Plated)

Modified Teflon

®

EPDM

Zone Sentry Installation and 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.

Simplified Internal

Schematic:

LED c w/y

End Switch

Motor

Circuit

Typical Zone Sentry Zone Valve Wiring:

Thermostats

Transformer

Rh/Rc w/y

Rh/Rc w/y

Rh/Rc w/y

24 v

L1 (Hot)

L2

T

T

To “T” Terminals on Boiler Control

Transformer Relay

Up to 12 Valves per

40va Transformer

NOTE 1: 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.

NOTE 2: 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 the power/motor (24 VAC) connection terminals, even temporarily. This may cause damage to the thermostat’s heat anticipator or to the transformer.

Typical Installations for 3-way Valves Normally Closed to the Load

SUPPLY

ELECTRICAL

CONNECTION

LOAD

FLOW ON

CALL

RETURN

FLOW ON

NO CALL

SUPPLY

LOAD

ELECTRICAL

CONNECTION

SUPPLY

FLOW ON

CALL

FLOW ON

NO CALL

SUPPLY RETURN

Typical Installations for 3-way Valves Normally Open to the Load

SUPPLY

ELECTRICAL

CONNECTION

LOAD

FLOW ON

NO CALL

FLOW ON

CALL

RETURN SUPPLY

LOAD

SUPPLY

FLOW ON

NO CALL

ELECTRICAL

CONNECTION

FLOW ON

CALL

SUPPLY RETURN

NOTE for 3-way: Actuator’s power connections must be mounted over the port requiring flow when power is applied. The valve should always be installed so that the unpowered port is the one with the highest percentage of time with flow.

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 three (3) years from the date of start-up or three (3) years and six (6) months from date of shipment (whichever occurs first).

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. For assistance on warranty returns, the purchaser may either contact the local Taco stocking distributor or Taco. If the subject product or part contains no defect as covered in this warranty, the purchaser will be billed for parts and labor charges in effect at time of factory examination and repair.

Any Taco product or part not installed or operated in conformity with Taco instructions or which has been subject to misuse, misapplication, the addition of petroleum-based fluids or certain chemical additives to the systems, or other abuse, will not be covered by this warranty.

If in doubt as to whether a particular substance is suitable for use with a Taco product or part, or for any application restrictions, consult the applicable Taco instruction sheets or contact

Taco at [401-942-8000].

Taco reserves the right to provide replacement products and parts which are substantially similar in design and functionally equivalent to the defective product or part. Taco reserves the right to make changes in details of design, construction, or arrangement of materials of its products without notification.

TACO OFFERS THIS WARRANTY IN LIEU OF

ALL OTHER EXPRESS WARRANTIES. ANY

WARRANTY IMPLIED BY LAW INCLUDING

WARRANTIES OF MERCHANTABILITY OR FIT-

NESS IS IN EFFECT ONLY FOR THE DURATION

OF THE EXPRESS WARRANTY SET FORTH IN

THE FIRST PARAGRAPH ABOVE.

THE ABOVE WARRANTIES ARE IN LIEU OF ALL

OTHER WARRANTIES, EXPRESS OR STATU-

TORY, OR ANY OTHER WARRANTY OBLIGA-

TION ON THE PART OF TACO.

TACO WILL NOT BE LIABLE FOR ANY SPE-

CIAL, INCIDENTAL, INDIRECT OR CONSE-

QUENTIAL DAMAGES RESULTING FROM THE

USE OF ITS PRODUCTS OR ANY INCIDENTAL

COSTS OF REMOVING OR REPLACING

DEFECTIVE PRODUCTS.

This warranty gives the purchaser specific rights, and the purchaser may have other rights which vary from state to state. Some states do not allow limitations on how long an implied warranty lasts or on the exclusion of incidental or consequential damages, so these limitations or exclusions may not apply to you.

C

OMFORT

M

ADE

E

ASY

.

®

TACO, INC., 1160 Cranston Street, Cranston, RI 02920 Telephone: (401) 942-8000 FAX: (401) 942-2360.

TACO (Canada), Ltd., 8450 Lawson Road, Unit #3, Milton, Ontario L9T 0J8.

Telephone: 905/564-9422.

FAX: 905/564-9436.

Visit our web site at: http://www.taco-hvac.com

Printed in USA

Copyright 2011

TACO, Inc.