MZV Series

PowerTrack

™

Motorized Zone Valve

PRODUCT DATA

FEATURES

• Fast acting. Available with or without auxiliary switch.

• Built in balancing plug permits pre-balancing of zone.

• High torque, constant speed synchronous motor.

• Quiet operation: no water hammer.

• PowerTrack ™ operator can be replaced without draining system.

• Cooler running, longer motor life.

• Low power consumption, up to 8 valves per 40 VA transformer.

• Replaceable valve cartridge.

APPLICATION

Residential or commercial zoning of hot water heating or chilled water air conditioning systems, fan coil units or indirect water heater service.

CAUTION

DO NOT USE SILVER SOLDER

SPECIFICATIONS

Maximum Fluid Temperature: 240° F (115° C).

Maximum Working Pressure: 125 psi (862 kPa).

Dimensions: Connections: ½ in. NPT ¾ in. Sweat or NPT,

1.0 in. Sweat or NPT, and 1 ¼ in. Sweat.

Fluids: Water and Water/Glycol.

Cv: 0.5 in. (13 mm) and 0.75 in. (19 mm) - 5.8, 1.0 in.

(25 mm) or 1.25 in. (32 mm) - 7.0.

Maximum Shut-off Pressure: 0.5 in. (13 mm) and 0.75 in.

(19 mm) - 20 psi (138 kPa), 1 in. (25 mm) and 1.25 in. (32 mm) - 17.5 psi (121 kPa).

Motor Rated: 24 VAC, 60 HZ, 0.25 Ampere. (May be safety operated between 22 and 28 VAC)

Power to open, spring return close.

Contents

Application.........................................................................1

Features ............................................................................1

Specifications ....................................................................1-2

Ordering Information .........................................................2

Installation .........................................................................3

Troubleshooting.................................................................4

62-3099-01

MZV SERIES POWERTRACK™ MOTORIZED ZONE VALVE

Opening Time: 10 - 20 seconds.

Closing Time: 3 - 6 seconds.

Agency Recognized: Motor CSA.

With Operator Installed: Valve is normally closed.

Maximum Ambient Temperature: 104 °F (40 °C) at a water temperature of 240 °F (115 °C) See note.

NOTE: Maximum allowable ambient temperature increases as the water temperature drops below 240 °F

(116 °C). For every 7 °F (4 °C) drop the ambient temperature can be increased 1 °F (0.5 °C).

Manual Operation: Option.

Wiring Connections: 18 in. (457 mm) leads.

Materials: Bronze casting, brass/stainless trim.

Position Indicator: External Open/Closed

Auxiliary Switch Rated: 24 VAC, 5A resistive, 3A inductive.

Table 1. MZV Series PowerTrack OS Models

Product

Number

MZV524-T

MZV524E-T

MZV525

MZV525E

MZV525-T

MZV525E-T

MZV526

MZV526E

MZV526-T

MZV526E-T

MZV527

MZV527E

MZV520 RP

MZV521 RP

MZV525 RP

MZV526 RP

½ in. NPT

½ in. NPT

Size

¾ in. Sweat

¾ in. Sweat

¾ in. NPT

¾ in. NPT

1 in. Sweat

1 in. Sweat

1 in. NPT

1 in. NPT

1 ¼ in. Sweat

1 ¼ in. Sweat

All

All

½ in. & ¾ in.

1 in. & 1 ¼ in.

No

Yes

Yes

No

No

Yes

No

Yes

---

---

Aux.

Switch

No

Yes

No

Yes

No

Yes

Weight

Lbs. (kg) A

1.9 (0.86) 3.3 (84)

1.9 (0.86) 3.3 (84)

1.7 (0.77) 3.3 (84)

1.7 (0.77) 3.3 (84)

2.0 (0.91) 3.3 (84)

2.0 (0.91) 3.3 (84)

2.0 (0.91) 3.8 (96)

Dimension In Inches (mm)

B

1.0 (25)

C D E

4.8 (122) 0.7 (18) 1.6 (41)

1.0 (25)

0.8 (20)

4.8 (122)

4.8 (122)

0.7 (18)

0.7 (18)

1.6 (41)

1.6 (41)

0.8 (20)

1.0 (25)

1.0 (25)

1.0 (25)

4.8 (122)

4.8 (122)

0.7 (18)

0.7(18)

1.6 (41)

1.6 (41)

4.8 (122) 0.7 (18) 1.6 (41)

4.8 (122) 0.8 (20) 1.6 (41)

2.0 (0.91) 3.8 (96)

2.5 (1.13) 3.6 (91)

2.5 (1.13) 3.6 (91)

2.2 (1.00) 3.8 (96)

1.0 (25)

1.0 (25)

1.0 (25)

1.0 (25)

4.8 (122) 0.8 (20) 1.6 (41)

4.8 (122) 0.8 (20) 1.6 (41)

4.8 (122) 0.8 (20) 1.6 (41)

4.8 (122) 0.8 (20) 1.6 (41)

2.2 (1.00) 3.8 (96) 1.0 (25) 4.8 (122) 0.8 (20) 1.6 (41)

Replacement Operator for MZV, RM and SZ Series Manifolds

Replacement Operator for MZV

Replacement Valve Cartridge for ½ in. (13) & ¾ in. (19) MZV

Replacement Valve Cartridge for 1 in. (25) & 1 ¼ in. (32) MZV

ORDERING INFORMATION

When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the

TRADELINE® Catalog or price sheets for complete ordering number.

If you have additional questions, need further information, or would like to comment on our products or services, please write or phone:

1.

Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).

2.

Honeywell Customer Care

1985 Douglas Drive North

Minneapolis, Minnesota 55422-4386

In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Toronto, Ontario M1V 4Z9.

International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,

Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.

62-3099-01 2

MZV SERIES POWERTRACK™ MOTORIZED ZONE VALVE

1 (25)

OPEN

CLOSED

C

SIZE

525

3/4

A

B

D

E

M23962

Fig. 1. Dimensions Diagram from SD-IS-525.

Thermostat

Should be rated not less than 30 V. Use of Honeywell thermostat is recommended. Directly compatible with most microprocessor based thermostats.

CAUTION

Disconnect power supply before connecting wiring. Never jump the motor terminals even temporarily. This may burn out the heat anticipator or otherwise damage the thermostat.

INSTALLATION

Can be installed in horizontal or vertical pipe runs. Operator can be in any position between horizontal and vertical.

To Install the PowerTrack Operator

Follow these Steps:

1.

Place the brass nut of the operator on top of the valve so that the square shaft of the operator and the round stem of the valve are roughly aligned.

2.

Push down on the operator and screw the brass nut to the thread on the valve or manifold.

3.

Continue to turn the nut until the pointer is centered over the dot. The operator is now properly installed

(See Fig. 2).

NOTE: Brass nut must be tightened 2 to 3 turns before pointer starts to move.

4.

Connect electrical leads per wiring diagram (Refer to

Figures. 3, 4, 5 and 6).

M23963

Fig. 2. Indicator Pointer Centered.

Pre-Balancing

Each valve has a built in plug, which will permits pre-balancing the zone. To balance, remove PowerTrack operator and locate the plastic plug on top of the valve. To turn plug, engage a screwdriver in slot on top of plug. Turn the plastic plug clockwise until it bottoms out (2 to 3 turns), then back off counterclockwise until the desired flow rate is established. The table below gives approximate flow rates. It is based on commonly used residential circulators and piping practices. For other conditions, different settings may apply. (See

INSTALLATION for removing and replacing operator).

Turns from fully closed

Flow rate in GPM, ½ in. &

¾ in. valve

Flow rate in GPM, 1.0 in.

& 1 ¼ in. valve

¼

1 ½

2

½

3

4

1

4 ½

6

1 ½

6

8

2

7 ½

10

Manual Opening of Zone Valve

To open, hold PowerTrack operator with one hand and loosen the knurled brass nut 1 to 1 ½ turns counterclockwise. This opens the valve. To close the valve, follow instructions for installation steps 1, 2, and 3.

Replacement of PowerTrack

Operator:

SHUT OFF POWER. To remove and replace operator, refer to section INSTALLATION. Replacement part numbers are:

Operator with switch MZV520, without switch MZV521.

Replacement of Valve Cartridge:

SHUT OFF POWER and DRAIN SYSTEM, then follow instructions in section INSTALLATION. Part numbers are:

Cartridge for ½ in. and ¾ in. valve MZV525 RP, cartridge for 1 in. and 1 ¼ in. valve: MZV526 RP

MZV520

PowerTrack™ OPERATOR

MOTOR

YELLOW

YELLOW

MZV521

PowerTrack™ OPERATOR

MOTOR

YELLOW

YELLOW

3

RED

RED

M23964

Fig. 3. Wiring Diagram (No Switch or Switch not used).

69-3099—01

.

MZV SERIES POWERTRACK™ MOTORIZED ZONE VALVE

THERMOSTAT

MZV520 OR

MZV521

PowerTrack™

THERMOSTAT

MZV520 OR

MZV521

PowerTrack™

1

TRANSFORMER

24V

YELLOW RED RED YELLOW RED RED

1 UP TO EIGHT VALVES PER 40VA TRANSFORMER.

NOTE: RED WIRES NOT PROVIDED ON MZV521.

M23965

Fig. 4. 2 Wire Wiring (No Switch or Switch not used).

THERMOSTAT THERMOSTAT

1

TRANSFORMER

24V

YELLOW RED RED YELLOW YELLOW RED RED

BOILER CONTROL

T

T

1 UP TO EIGHT VALVES PER 40VA TRANSFORMER.

M23967

Fig. 6. 4 Wire Wiring from SD-IS-525.

TROUBLESHOOTING

THERMOSTAT

MZV520

PowerTrack™

THERMOSTAT

MZV520

PowerTrack™

1

TRANSFORMER

24V

YELLOW RED RED YELLOW RED RED

BOILER CONTROL

T

T

1 UP TO EIGHT VALVES PER 40VA TRANSFORMER.

NOTE: USE THIS CONNECTION DIAGRAM WHEN

REPLACING THREE WIRE VALVES WITH

FOUR WIRE PowerTrack™ VALVES.

M23966

Fig. 5. 3 Wire Wiring (with Auxiliary Switch).

PowerTrack

™

is a trademark of Honeywell International. Inc.

Tradeline

® is a registered trademark of Honeywell International. Inc.

Troubleshooting Guide

1.

If valve does not open when thermostat closes:

• Check voltage between yellow wires. Should be 22 to 28 V.

2.

Boiler and/or circulator continues to run after valve has closed:

• Turn brass nut counterclockwise ¼ turn.

3.

Valve leaks across seal:

• Make sure maximum allowable shut off pressure has not been exceeded. (See SPECIFICATIONS)

• If allowable shut off pressures have not been exceeded, turn brass nut ¼ turn clockwise.

4.

Valve chatters when closing:

• Check for proper flow direction.

Automation and Control Solutions

Honeywell International Inc.

1985 Douglas Drive North

Golden Valley, MN 55422

Honeywell Limited-Honeywell Limitée

35 Dynamic Drive

Toronto, Ontario M1V 4Z9 customer.honeywell.com

® U.S. Registered Trademark

© 2010 Honeywell International Inc.

69-3099—01 M.S. Rev. 09-10

Printed in U.S.A.