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Nittan EVCA-P Instruction Manual

Conventional photoelectric smoke detector
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Instruction Manual
EVCA-P
Conventional Photoelectric Smoke Detector
Before Installation
Please read these instructions carefully and keep for future reference.
The information in this document is subject to change without notice. For updates please refer to our website.
Do not use the products outside the rated power supply voltage range specified in
the Specifications. It may cause a fire or damage to equipment.
Do not disassemble, repair, or modify the products. It may cause a fire or electric
shock.
Make sure to turn the power off before commencing any wiring work. Otherwise it
may cause electric shock or damage to equipment.
Note: Follow the requirements for the installation of the products in accordance with the Specifications. Otherwise it
may cause malfunction.
Note: Do not install the product in any location where oil, dust, iron powder, chemicals, or hydrogen sulphide may occur
or affect the product. It may cause damage to equipment.
Section 1 – INTRODUCTION
1.1
General description
The EVCA-P is an attractively-styled, low profile photoelectric smoke detector for use in conventional fire detection
systems. This detector is also for use in analog fire alarm systems, the Nittan control panel NFU-7000 series, when the
detector is connected to the analog addressable module EVA-ZMU-SCI Zone Module.
1.2
LED Indicator
LED Indicators for 360° visibility (OMNIVIEW
Red LED illuminates in an alarm condition.
1-54-5 SASAZUKA, SHIBUYA-KU, TOKYO 151-8535, JAPAN
! CAUTION
! CAUTION
! CAUTION
TM
360°) of EVCA-P operate as follows:
1
NITTAN COMPANY, LIMITED
http://www.nittan.com
DW1500110 Rev.K1
Sep 18 2015

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Summary of Contents for Nittan EVCA-P

  • Page 1: Section 1 - Introduction

    The EVCA-P is an attractively-styled, low profile photoelectric smoke detector for use in conventional fire detection systems. This detector is also for use in analog fire alarm systems, the Nittan control panel NFU-7000 series, when the detector is connected to the analog addressable module EVA-ZMU-SCI Zone Module.

  • Page 2: Section 2 - General Operation

    * Photoelectric detector, detecting visible particles of combustion Section 2 – GENERAL OPERATION The EVCA-P chamber consists of a light emitting diode (LED) and photodiode arrangement. The chamber contains a unique design which allows smoke to enter the chamber while preventing external light from affecting the photodiode.

  • Page 3: Section 3 - Dimensions

    15.0 (0.59) 33.0 (1.30) 104.0 (4.09) mm (Inch) Figure1:Dimension of EVCA-P Section 4 – TERMINALS The EVCA-P smoke detector has three terminal connections and the terminals are configured as follows: Terminal Description Zone negative in Zone positive in/out Zone negative out DW1500110 Rev.K1...

  • Page 4: Section 5 - Base Models

    Section 5 – BASE MODELS There are 2 mounting bases that are available for use with the EVCA-P. In order to operate correctly, it is important to use the appropriate mounting base as indicated in the table below. Refer to the mounting base instruction manual for details.
  • Page 5 6.2.1 Avoidance of unwanted alarms Smoke detectors can be affected by various environmental factors (other than smoke), which may accidentally activate the detectors. It is necessary to consider where smoke detectors should be installed in order to minimize unwanted alarms. Listed below are some common sources of unwanted alarms to be considered when locating smoke detectors. ・...
  • Page 6 6.2.3 Stratification Stratification of air in a room can hinder smoke from reaching ceiling-mounted smoke detectors. In order to improve detection response in situations where stratification exists, it might be necessary to install additional smoke detectors on sidewalls or at locations below the ceiling, as shown in Figure 2. Smoke detectors below celling Smoke detectors...
  • Page 7 6.2.5 Exposed solid joists Exposed solid joists may impede the flow of smoke to detectors. A joist is defined as greater than 10 cm (4 in.) in depth and spaced less than 91 cm (3 ft.) apart. The detectors must be mounted on the bottom of the joists. CEILLING SECTION Less than 91cm (3 ft.) Solid joist...
  • Page 8 6.2.6 Exposed beams Beams are defined as any members extending 10 cm (4 in.) or more down from the ceiling and spaced more than 91 cm (3 ft.) apart. The spacing of smoke detectors must be reduced in the direction perpendicular to the beam. Smoke detectors shall be located on the ceiling in each beam pocket if the ratio of beam depth (D) to ceiling height (H), D/H, is greater than 0.1, and the ratio of beam spacing (W) to ceiling height (H), W/H, is greater than 0.4.
  • Page 9 6.2.7 Sloping ceiling (peaked and shed) In the rooms with peaked ceilings, the first row of detectors must be located within 1 m (3 ft.)(measured horizontally) of the ceiling peak, but not closer than 10 cm (4 in.) vertically to the peak. Additional detectors, if required, must be located based on the horizontal projection of the ceiling and the type of ceiling construction.
  • Page 10 Procedure for installing Note: All wiring must be installed in compliance with the National Electrical Code, applicable local codes and the Authority Having Jurisdiction. Proper wire gauges should be used. The installation wires should be color coded to limit wiring mistakes and ease system troubleshooting.
  • Page 11 To UL Listed control panel NFU-7000 series Connect to EVA-ZMU-SCI for Class A wiring. UL Listed Module EVA-ZMU-SCI EVA-UB4/EVA-UB4-6 EVA-UB4/EVA-UB4-6 To UL Listed control panel NFU-7000 series Connect to EVA-ZMU-SCI for Class B wiring. UL Listed Module EVA-ZMU-SCI 10KΩ EVA-UB4/EVA-UB4-6 EVA-UB4/EVA-UB4-6 Figure 9: Wiring diagram for EVA-UB4 and EVA-UB4-6 IDC Line impedance is 50Ω...
  • Page 12 Correct wiring Incorrect wiring Figure 10: Correct and incorrect wiring method ! CAUTION For system monitoring － For terminals 1 and 6 do not use looped wire under terminals. Break wire run to provide monitoring of connections. DW1500110 Rev.K1 Sep 18 2015...

  • Page 13: Section 7 - Testing

    Check that the detector gives an alarm condition within 15 seconds. Check the red LED indicator lights on the EVCA-P smoke detector. If the red LED fails to light, check the power to the detector and the wiring in the detector base.

  • Page 14: Section 8 - Maintenance

    Where the sensitivity limits for the tester are 1.78%/ft. ~ 3.60 %/ft. Check the red LED indicator lights on the EVCA-P smoke detector within the sensitivity limits. If the red LED fails to light in the range, check the power to the detector and the wiring in the detector base.

  • Page 15: Section 9 - Specifications

    Maximum Quantity per Module 20 units Start-up Time 20 seconds UL 268 Standard 118g (Detector head only) Weight FOR WARRANTY SERVICE, RETURN TO: OVERSEAS BUSINESS DIVISION NITTAN COMPANY, LIMITED 1-54-5 SASAZUKA, SHIBUYA-KU, TOKYO, 151-8535, JAPAN http://www.nittan.com DW1500110 Rev.K1 Sep 18 2015...

  • Page 16: Section 10 - Warranties

    Nittan or its employees or agents or otherwise, arising out of or in connection with any act or omission of Nittan relating to Nittan or supply of the products, their use by any customer.

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