Belimo Z2050QPT-D User manual

Technical Data 281354
Service chilled, hot water, up to 60% glycol
Flow Characteristic equal percentage
Controllable Flow Range 75°
Valve Size 0.5 “ [15]
End Fitting NPT female ends
Body forged brass
Ball stainless steel
Stem stainless steel
Seat Teflon® PTFE
Seat O-ring EPDM
Characterized Disc incorporated into the ball
Diaphragm EPDM
Body Pressure Rating 360 psi
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] *
Diff. Pressure Range 5 to 50 psi
Close-Off Pressure 200 psi
Valve Accuracy +/- 5%
Weight 1.8 lb [0.8 kg]
GPM 1.9
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 PIQCV zone valves with its pressure independent technology are suited
for large commercial buildings where higher close-off and dynamic balancing
is required. 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
Z2050QPT-D CQ CQK
Dimensions (Inches [mm])
EF
D
B
A
C
A B C D E F
4.90”
[124.5]
4.17” [106] 4.79” [122] 3.5” [89] 2.44” [62] 1.3” [31.5]
Z2050QPT-D, Pressure Independent ZoneTight
Zone Valves (PIQCV)
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN
Date created, 08/06/2018 - Subject to change. © Belimo Aircontrols (USA), Inc.

Dimensions (Inches [mm])
EF
D
B
A
C
A B C D E F
4.90”
[124.5]
4.17” [106] 4.5” [114.3] 3.43” [87] 2.44” [62] 1.3” [31.5]
Z2050QPT-D, Pressure Independent ZoneTight
Zone Valves (PIQCV)
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN
Date created, 08/06/2018 - Subject to change. © Belimo Aircontrols (USA), Inc.

Technical Data 282498
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-RL
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, 06/08/2018 - Subject to change. © Belimo Aircontrols (USA), Inc.

Wiring Diagrams
INSTALLATION NOTES
A
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
V
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 Close Close
10 VDC Open Open
Open
24 VAC Transformer
CQKB24-SR-RL
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, 06/08/2018 - Subject to change. © Belimo Aircontrols (USA), Inc.