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CALECTRO UG8-U-24 Installation And Maintenance Manual

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Installation and maintenance manual
UG8-U-24 and UG8-U-120
Technical data:
Duct smoke detector:
Reset/Test, push button for two sec: Resets smoke detector
Test spray type:
LED Indications:
Green:
Yellow flashing:
Yellow fixed:
Red:
Duct air velocity:
Pressure differential between tubes: 0.0028 to 1.49 in/H2O
Operating temperature:
Sensitivity limits:
Specifications:
Operating temperature:
Storage temperature:
Humidity:
Air Velocity:
Footprint dimensions:
Weight:
Electrical
Power supply voltage:
Reset time (by power down):
Power up time:
Sensitivity:
Sensitivity:
Current requirements
Max. standby current:
Max. alarm current:
Contact ratings
Alarm initiation contacts (SPDT and SPST)
Supervisory contacts (SPST)
Service alarm relay (SPST)
Prior to installing yout duct detector
Read this installation manual which provides information
on detector placement, wiring, test and maintenance. This
manual is also available online at www.calectro.com.
Follow the installation instruction in the installation manual
and all applicable local codes including NFPA 72, NFPA
90A, and NEMA Guide for Proper Use of Smoke Detectors
in Duct Applications.
UG8-U-24 and U8-U-120
Home Guard HO-25S Smoke detector tester
Power on
Smoke detector fault/removed
Service alarm
LED on smoke detector: Smoke alarm
100-4000 FPM
32°F (0°C) to 100°F (38°C)
0.74 - 1.19%/ft. For use with detector
head model EVCA-PY-DA UG8.
0,82 - 1,05%/ft. For use with detector
head model EVCA-PY-DA.
Use Trutest Model number 801 to test
the smoke detector.
32°F (0°C) to 100°F (38°C),
-22°F (-30°C) to 158°F (70°C)
0% to 95% Relative humidity
100 ft/min (0.51 m/sec.) - 4000 ft/min (20.32 m/sec).
L: 8,58 in (218 mm) / W: 4,7 in (119,5 mm) / D: 3,03 in (77 mm)
UG8-U-24: 1.025 lb / 0,465kg / UG8-U-120: 1.069 lb / 0,485kg
UG8-U-24
24V DC (-5 / +20%)
1 sec. max.
1 minute
Detector head EVCA-PY-DA UG8: sensitivity 0.74 - 1.19%/ft.
Detector head EVCA-PY-DA: sensitivity 0,82 - 1,05%ft.
UG8-U-24
70mA
85mA
Calectro AB
Box 9097 400 92 Gothenburg Sweden
Phone: +46 31-69 53 00 info@calectro.se www.calectro.se
UG8-U-24
24V AC (±10%) 50-60Hz
1 sec. max.
1 minute
UG8-U-24
180mA
235mA
8A @ 30V DC (resistive)
8A @ 250V AC (resistive)
1A @ 24V DC (resistive)
1A @ 120V AC (resistive)
1A @ 24V DC (resistive)
1A @ 120V AC (resistive)

Table of contents

2. Overview
Revision 1.0
02-27-2024
HFE8055
UG8-U-120
110-120V AC 50-60Hz
1 sec. max.
1 minute
UG8-U-120
55mA (at 120Vac)
70mA (at 120Vac)

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Summary of Contents for CALECTRO UG8-U-24

  • Page 1: Table Of Contents

    100 ft/min (0.51 m/sec.) - 4000 ft/min (20.32 m/sec). Footprint dimensions: L: 8,58 in (218 mm) / W: 4,7 in (119,5 mm) / D: 3,03 in (77 mm) Weight: UG8-U-24: 1.025 lb / 0,465kg / UG8-U-120: 1.069 lb / 0,485kg Electrical UG8-U-24 UG8-U-24...

  • Page 2: Limitations Of Duct Smoke Detectors

    The UG8-U has two versions that operates with 24V DC/AC or 120V AC. The UG8-U-24 for the 24V DC/AC and the Model UG8-U-120 for the 120V AC versions. Alarm relay contacts are accessible to interface with control panel, HVAC control, and other functions.

  • Page 3: Duct Smoke Detector Kit Contents

    Note the foot’s shape of an arrow, which shall be installed towards the air flow direction. Example of location after Example of location before change of duct direction. ventilation grill. Ventilation grill Air flow direction Calectro AB Box 9097 400 92 Gothenburg Sweden Phone: +46 31-69 53 00 info@calectro.se www.calectro.se...
  • Page 4 6. Mount the Uniguard on the rotation part and rotate it in the desired direction. 7. Secure the Uniguard with two screws. Min 7,8” NOTE! Check that all covers are properly locked. 360° Calectro AB Box 9097 400 92 Gothenburg Sweden Phone: +46 31-69 53 00 info@calectro.se www.calectro.se...
  • Page 5 10. Mount the Uniguard on the rotation part and rotate it in the desired direction. 11. Secure the Uniguard with two screws. 100% ≥ 90% NOTE! Check that all covers are properly locked. 360° Calectro AB Box 9097 400 92 Gothenburg Sweden Phone: +46 31-69 53 00 info@calectro.se www.calectro.se...

  • Page 6: Field Wiring Installation Guidelines

    A minimum of 18 AWG wire must be used for signal wiring (when interconnecting detectors or between detectors and auxiliary devices). Calectro AB Box 9097 400 92 Gothenburg Sweden Phone: +46 31-69 53 00 info@calectro.se www.calectro.se...
  • Page 7 If the ”knock-out” part is to be used. Cut out the plastic with a knife and remove it completely, using your finger or a blunt object. Calectro AB Box 9097 400 92 Gothenburg Sweden Phone: +46 31-69 53 00 info@calectro.se www.calectro.se...
  • Page 8 12. Smoke alarm relay 2 (NO) Indicates smoke alarm. Smoke alarm relay 2 (Common) Indicates smoke alarm. Smoke alarm relay 2 (NC) Indicates smoke alarm. Calectro AB Box 9097 400 92 Gothenburg Sweden Phone: +46 31-69 53 00 info@calectro.se www.calectro.se...
  • Page 9 15. C. 15. C. NOTE! All relay contacts are shown in power on / no alarm condition. See specifications for contact rating. Calectro AB Box 9097 400 92 Gothenburg Sweden Phone: +46 31-69 53 00 info@calectro.se www.calectro.se...

  • Page 10: Measurement Tests

    Sampling tube Supply 15-36V DC Volt meter Resistor 1kΩ SPAN ZERO 0 0 0 0 5% 1W Calectro AB Box 9097 400 92 Gothenburg Sweden Phone: +46 31-69 53 00 info@calectro.se www.calectro.se...

  • Page 11: Detector Condition Indication

    Disable the zone or system that is under maintenance to avoid unwanted alarms and the possibility of an fire department unnecessary dispatch. Calectro AB Box 9097 400 92 Gothenburg Sweden Phone: +46 31-69 53 00 info@calectro.se www.calectro.se...
  • Page 12 If the spray is misapplied or excessively app- lied, it may affect the operation of the duct smoke detector. Calectro AB Box 9097 400 92 Gothenburg Sweden Phone: +46 31-69 53 00 info@calectro.se www.calectro.se...

  • Page 13: Sensitivity Test

    4. Remove the detector cover as described in section 10.2. 5. *1) Remove the detector head by turning it counter clockwise and lift the detector head. 6. Use a UB-6 smoke detector base. This can be ordered from Calectro AB. Please see contact information in this Installation manual.

  • Page 14: Detector Replacement And Cleaning

    10.3 If the detector needs to be replaced do the following: 1. Disconnect the power. 2. Follow the steps above, except insert a new detector. Calectro AB Box 9097 400 92 Gothenburg Sweden Phone: +46 31-69 53 00 info@calectro.se www.calectro.se...

This manual is also suitable for:

Ug8-u-120