Belimo Z2050QS-J Manuel utilisateur

Technical Data 307648

Service chilled, hot water, up to 60% glycol

Flow Characteristic equal percentage

Controllable Flow Range 75°

Size [mm] 0.5” [15]

End Fitting Sweat

Body forged brass

Ball chrome plated brass

Stem brass

Seat Teflon® PTFE

Seat O-ring EPDM (lubricated)

Diaphragm EPDM

Body Pressure Rating [psi] 360

Media Temperature Range

(Water)

36°F to 212°F [2°C to 100°C]

Maximum Allowable Operating

Temperature

212°F [100°C] *

Media Temperature Limit 250°F [121°C] *

Max Differential Pressure (Water) 40 psi

Close-Off Pressure 75 psi

Cv 5.9

Weight 0.2 lb [0.1 kg]

Leakage 0%

Servicing maintenance free

* If temperature exceeds 212°F operating range due to a boiler control failure the valve will safely contain

the hot water but manufacturers product warranty becomes invalid. Valve and actuator replacement is at

the expense of others.

Application

The QCV zone valves are suited for large commercial buildings where higher

close-off and the ability to change flow is desired. Common applications include

unit ventilators, fan coil units, VAV reheat coils, fin tube casing, radiant panels

and duct coils. The valve fits in space restricted areas and can be assembled

without the use of tools.

Suitable Actuators

Non-Spring Electronic Fail-Safe

Z2050QS-J CQ CQK

Dimensions (Inches [mm])

A B C D E F

4.5” [114] 2.05” [52] 3.27” [83] 2.71” [69] 0.94”

[23.88]

0.94” [24]

Z2050QS-J, 1/2”, ZoneTight Valve

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN

Date created, 03/10/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.

Dimensions (Inches [mm])

A B C D E F

4.5” [114] 2.05” [52] 3.14” [80] 2.56” [65] 1.02” [26]

Z2050QS-J, 1/2”, ZoneTight Valve

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN

Date created, 03/10/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.

Technical Data 281368

Power Supply 24 VAC, ±20%, 50/60 Hz, 24 VDC, ±10%

Power Consumption Running 2.5 W

Power Consumption Holding 0.5 W

Transformer Sizing 5 VA (class 2 power source)

Electrical Connection 3ft [1m], 18 GA plenum cable with 1/2” conduit

connector

Overload Protection electronic thoughout 0° to 90° rotation

Operating Range Y 2 to 10 VDC, 4 to 20 mA w/ ZG-R01 (500 Ω,

1/4 W resistor)

Angle of Rotation 90°, adjustable with mechanical stop

Position Indication pointer

Running Time (Motor) 75 sec

Running Time (Fail-Safe) <60 sec

Bridge Time 2 sec delay before fail-safe activates

Pre-charging Time 5 to 20 seconds

Ambient Humidity 5 to 95% RH non-condensing

Ambient Temperature Range 35°F to 104°F [1.7°C to 40°C]

Storage Temperature Range -40°F to 176°F [-40°C to 80°C]

Housing IP40, NEMA 2

Housing Material UL94-5VA

Agency Listings† cULus acc. to UL60730-1A/-2-14, CAN/CSA

E60730-1:02, CE acc. to 2004/108/EC and

2006/95/EC

Noise Level (Motor) max. 35 dB (A)

Servicing maintenance free

Quality Standard ISO 9001

Weight 0.4 lb [0.2 kg]

Degree of Protection IEC/EN IP40

CQKB24-SR-LL

Modulating, Electronic Fail-Safe, 24 V, for 2 to 10 VDC or 4 to 20 mA Control Signal

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN

Date created, 06/07/2018 - Subject to change. © Belimo Aircontrols (USA), Inc.

Wiring Diagrams

INSTALLATION NOTES

Actuators with appliance cables are numbered.

Actuators may be connected in parallel. Power consumption and input

impedance must be observed.

Actuators may also be powered by 24 VDC.

Only connect common to negative (-) leg of control circuits.

A 500 Ωresistor (ZG-R01) converts the 4 to 20 mA control signal to 2

to 10 VDC.

Actuators with plenum cable do not have numbers; use color codes

instead.

Meets cULus requirements without the need of an electrical ground

connection.

!WARNING! LIVE ELECTRICAL COMPONENTS!

During installation, testing, servicing and troubleshooting of this

product, it may be necessary to work with live electrical components.

Have a qualified licensed electrician or other individual who has been

properly trained in handling live electrical components perform these

tasks. Failure to follow all electrical safety precautions when exposed to

live electrical components could result in death or serious injury.

Line

olts

Control Signal

VDC/mA

Blk Common

Red + Hot

Wht Y1 Input, 2 to 10V

500

2 3 185 7

100%Fail Position

2 VDC CloseOpen

10 VDC Open Close

Open

24 VAC Transformer

CQKB24-SR-LL

Modulating, Electronic Fail-Safe, 24 V, for 2 to 10 VDC or 4 to 20 mA Control Signal

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN

Date created, 06/07/2018 - Subject to change. © Belimo Aircontrols (USA), Inc.

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