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Nittan EVA-PY3 Instruction Manual

Analog photoelectric smoke detector
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Instruction Manual
EVA-PY3
Analog 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 EVA-PY3 is an attractively-styled, low profile, analog addressable, photoelectric smoke detector for use with the
Nittan Control panel NFU-7000 series in analog fire alarm systems.
This analog addressable photoelectric smoke detector has a specific detector address to provide exact detector
locations throughout the installation. This allows for constant monitoring of the detector sensitivity and reports the
detectors condition to the fire alarm control panel.
1.2
LED Indicator
LED Indicators for 360° visibility (OMNIVIEW
Green LED flashes in normal operation.
Red LED illuminates and Green LED flashes in an alarm condition.
1.3
EVA-PY3 features
* Low profile, stylish appearance
* Soft addressing
* Low monitoring current
* Supplied with protective dust cover
* OMNIVIEW
TM
360
o
LED Indicator for polling and fire alarm indication
* Photoelectric detector, detecting visible particles of combustion
* Automatic compensation for smoke detector contamination
1-54-5 SASAZUKA, SHIBUYA-KU, TOKYO 151-8535, JAPAN
! CAUTION
! CAUTION
! CAUTION
360°) of EVA-PY3 operate as follows:
TM
1
NITTAN COMPANY, LIMITED
https://www.nittan.com/english
DW2000742 Rev.K1
May. 11, 2022

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Summary of Contents for Nittan EVA-PY3

  • Page 1: Section 1 - Introduction

    Section 1 – INTRODUCTION General description The EVA-PY3 is an attractively-styled, low profile, analog addressable, photoelectric smoke detector for use with the Nittan Control panel NFU-7000 series in analog fire alarm systems. This analog addressable photoelectric smoke detector has a specific detector address to provide exact detector locations throughout the installation.

  • Page 2: Section 2 - General Operation

    Section 2 – GENERAL OPERATION The EVA-PY3 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. The EVA-PY3 has chemically etched, stainless steel insect screen therefore reducing the ingress of insects and airborne contaminants.

  • Page 3: Section 4 - Terminals

    Section 5 – BASE MODELS There are 5 mounting bases that are available for use with the EVA-PY3. In order to operate correctly, it is important to use the appropriate mounting base as indicated in the table below. Refer to the specific mounting base instruction manuals for details.

  • Page 4: Section 7 - Installation

    The installation must meet the requirements of the Authority Having Jurisdiction (AHJ). The detectors offer maximum performance when installed in compliance with the National Fire Protection Association (NFPA); see NFPA 72. Note: NITTAN COMPANY, LIMITED is not responsible for the product which is improperly installed, maintained and tested. 7.1.1 Location requirement When installing the detector please consider the following items.
  • Page 5 7.2.2 Spacing of Smoke Detectors The recommended spacing of spot type smoke detector is maximum 9.1 m (30 ft.), based on the detector installation on a smooth ceiling at 3 m (10 ft.) high. All points on the ceiling shall have a detector within a distance equal to or less than 0.7 times the nominal 9.1 m (30 ft.) spacing.
  • Page 6 7.2.5 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 7 7.2.6 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 8 7.2.7 Sloped ceiling (peaked and shed) In the rooms with peaked ceilings, the first row of detectors must be located within 91 cm (36 in.)(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 9 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 10 LOOP+ LOOP+ Control Panel NFU-7000 series LOOP- LOOP- EVA-UB4/EVA-UB4-6 EVA-UB4/EVA-UB4-6 Figure 9: Wiring diagram for EVA-UB4 and EVA-UB4-6 SLC Line impedance is 50Ω at maximum and the maximum length is 2km. Refer to the manual of control panel NFU-7000 series to determine correct maximum loop load and maximum loop resistance for devices connected to each loop.

  • Page 11: Section 8 - Testing

    Check that the detector gives an alarm condition within 15 seconds. Check the red LED indicator is on and the green LED is flashing on the EVA-PY3 detector. If the red LED fails to light, check the power to the detector and the wiring in the detector base.

  • Page 12: Section 9 - Maintenance

    Section 9 - MAINTENANCE Notes: • Before cleaning, notify the proper authorities that the system is undergoing maintenance, and therefore the system will temporarily be out of service. • Disable the loop or system undergoing maintenance to prevent unwanted alarms. It is recommended that the sensor be removed from its mounting base for easier cleaning and that sensors be cleaned at least once a year.

  • Page 13: Section 10 - Specifications

    Note 1:Please refer to the Control Panel detailed procedures for complete instruction on additional technical details pertaining to this connection. FOR WARRANTY SERVICE, RETURN TO: OVERSEAS BUSINESS DIVISION NITTAN COMPANY, LIMITED 1-54-5 SASAZUKA, SHIBUYA-KU, TOKYO, 151-8535, JAPAN https://www.nittan.com/english DW2000742 Rev.K1...

  • Page 14: Section 11 - 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.
  • Page 15 Annex A Quick Instruction of EVA-AD2 This quick instruction of EVA-AD2 is prepared to EVA-PY3. Please refer to “EVA-AD2 programmer instruction manual” for details. Preparation EVA-AD2 requires two 9v PP3 batteries. a) Before inserting the batteries, confirm the EVA-AD2 is switched off and check polarity of battery, or damage could result.
  • Page 16 Set new address +100, +10, +1 keys are used to select the new address. Press the [Set] key a) The buzzer sounds, and all LED’s are turned off. The EVA-AD2 then starts transmitting to the detector. b) Do not remove the detector. The 7 segment LED shows the new address and “complete”...