Nittan NFU-7000 Series

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DW1500274

Rev.K3

Mar 6, 2017

Installation Instructions

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.

CAUTION

・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.

・Do not use any tester other than the one specified for testing. It

may cause damage to equipment.

Note

・Follow the requirements for the installation of the products in

accordance with the Specifications. Otherwise it may cause

malfunction.

・The products should not be installed in the following places, as it

may cause damage to equipment:

- Place with plenty of air flow (close to a ventilation fan, air

conditioner, or place with drafts)

- Place close to heating appliance

- Place with a constantly high temperature or humidity

- Place with lots of dust or insects

- Place with exhaust gas such as garage

- Place where oil, dust, iron powder, chemicals, or hydrogen

sulphide may occur or affect the products

These instructions explain how to install and test UL Listed Nittan

detectors and bases.

For the details of each product, please refer to “Instruction Manual”

on the website: http://www.nittan.com

Table 1: UL Listed Product Instruction Manual

CAUTION

Install the detectors/bases in accordance with these instructions,

applicable NFPA standards, local codes, and the authorities

having jurisdiction. Failure to follow these instructions may result

in failure of detectors to initiate an alarm condition. Nittan is not

responsible for detectors and bases that have been improperly

installed, tested, or maintained.

Table 2: Electrical box for base

BASE Model

Applicable electrical box

3-1/2” Oct

4” Oct

4” Square

EVA-UB4

✓

EVA-UB4-6

✓

EVA-S6 Base

✓

EVA-STB-RL

✓

EVA-STB-RL

with

STBA-ADP

✓

EVA-STB-SCI

✓

EVA-STB-SCI

with

STBA-ADP

✓

Connect wiring to the detectors/bases as shown in the Section2.

Detectors and bases may be mixed on the same initiating loop as

long as the number of two-wire powered detectors does not

exceed the specifications of the control panel. For the

specifications of detectors/bases, see Table 3.

Product category

Model number

Manual part

number

Version

Control Panel

NFU-7000 series

LT-894NIT

Rev 2.1

Detector

EVA-PY

DW1401832

Rev.K1

EVA-PYH

DW1401831

Rev.K1

EVA-H2

DW1401833

Rev.K1

EVA-H2-H

EVA-DPH

DW1401834

Rev.K1

EVCA-P(-Z)

DW1500110

Rev.K2

Base

EVA-UB4

DW1401959

Rev.K1

EVA-UB4-6

EVA-STB-RL

DW1401853

Rev.K1

EVA-STB-SCI

DW1401852

Rev.K1

EVA-S6 Base

DW1401960

Rev.K1

Module

EVA-DIP-SCI

DW1401989

Rev.K1

EVA-DOP-SCI

DW1401991

Rev.K1

EVA-DOP

-AC240V-SCI

DW1401992

Rev.K1

EVA-SCI

DW1401994

Rev.K1

EVA-SCM-SCI

DW1401995

Rev.K1

EVA-MiniIP

DW1401993

Rev.K1

EVA-ZMU-SCI

DW1401990

Rev.K1

End of line

PCE

DW1401961

Rev.K1

Adapter Mounting

Plate

STBA-ADP

DW1402124

Rev.K1

NITTAN COMPANY, LIMITED

1-54-5 SASAZUKA, SHIBUYA-KU, TOKYO 151-8535, JAPAN

http://www.nittan.com

Main Page

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This document provides installation and testing instructions for UL Listed Nittan detectors and bases, including important technical specifications, usage features, and maintenance guidelines.

Function Description

The Nittan fire detection system comprises various components designed to detect smoke and heat, and to interface with a control panel for alarm conditions.

Detectors: These are the primary sensing units.
- EVA-PY / EVA-PYH: Photoelectric smoke detectors with heat sensing capabilities (thermistor for heat). They detect smoke using an LED (630 nm) and a silicon photodiode, and heat using a thermistor. The EVA-PYH model offers a higher fixed heat alarm temperature (83°C / 181.4°F) compared to EVA-PY (57°C / 135°F). Both respond to a rate of rise greater than 8.3°C (15°F)/min.
- EVA-H2 / EVA-H2-H: Heat detectors that use a thermistor for sensing. The EVA-H2 has a fixed alarm temperature of 57°C (135°F), while the EVA-H2-H has a fixed alarm temperature of 83°C (181.4°F). Both respond to a rate of rise greater than 8.3°C (15°F)/min.
- EVA-DPH: A combination smoke and heat detector. It uses a blue LED (465 nm) and an IR LED (940 nm) with a high-sensitivity photodiode for smoke detection, and a thermistor for heat detection. It has a fixed heat alarm temperature of 57°C (135°F) and responds to a rate of rise greater than 8.3°C (15°F)/min.
- EVCA-P(-Z): Photoelectric smoke detectors designed for two-wire connection via an analog addressable module (EVA-ZMU-SCI). They operate on 12VDC to 32VDC peak and have a sensitivity range of 1.78 %/Ft. to 3.60 %/Ft.
Bases: These provide the electrical connection and mounting for the detectors.
- EVA-UB4 / EVA-UB4-6: Standard mounting bases for detectors.
- EVA-S6 Base: A base that can support up to 127 units per loop and includes an auxiliary power supply.
- EVA-STB-RL: A base with a relay output, providing switching capacity of DC 30V/1A resistive.
- EVA-STB-SCI: A base with a Short Circuit Isolator (SCI) function, isolating faults on the SLC loop.
Modules:
- EVA-ZMU-SCI: An analog addressable module used to connect two-wire detectors like EVCA-P(-Z) to the control panel.
- PCE: An end-of-line device for open circuit monitoring.
Control Panel: The NFU-7000 series control panel manages the fire detection system, receiving signals from detectors and bases, and initiating alarms.

Important Technical Specifications

Operating Voltage Range (Detectors): Generally 20 VDC to 38 VDC Peak for EVA-PY, EVA-PYH, EVA-H2, EVA-H2-H, and EVA-DPH. EVCA-P(-Z) operates on 12VDC to 32VDC Peak.
Stand-by Current (Detectors): Typically 200 µA for EVA-PY, EVA-PYH, EVA-H2, EVA-H2-H, and EVA-DPH. EVCA-P(-Z) has a stand-by current of 30µA average at 24VDC.
Alarm Current (Detectors): Typically 5 mA for EVA-PY, EVA-PYH, EVA-H2, EVA-H2-H, and EVA-DPH. EVCA-P(-Z) has a maximum alarm current of 68mA.
Smoke Sensitivity:
- EVA-PY/EVA-PYH: 0.66 %/Ft. to 3.49 %/Ft.
- EVA-DPH: 0.5 %/Ft. to 0.96 %/Ft.
- EVCA-P(-Z): 1.78 %/Ft. to 3.60 %/Ft.
Heat Alarm Temperatures:
- Fixed: 57°C (135°F) for EVA-PY, EVA-H2, EVA-DPH; 83°C (181.4°F) for EVA-PYH, EVA-H2-H.
- Rate of Rise: Responds to greater than 8.3°C (15°F)/min for all heat-sensing detectors.
Operating Temperature Range (Detectors): Generally -10°C (14°F) to +55°C (131°F) for most detectors. EVA-H2-H has an operating temperature up to +65.6°C (150°F).
Relative Humidity: Up to 95% RH, non-condensing for all detectors and bases.
Addressability: Detectors are addressable from 1-254 (decimal).
Maximum Quantity per Loop: 254 units for most detectors (refer to control panel manual for specific limits). EVA-S6 Base supports 127 units. EVCA-P(-Z) supports 20 units per module.
SLC Line Impedance: Maximum 50 ohms, 2km (1.24 miles) for bases.
Wiring: Connects to UL Listed analog detectors. Class A wiring is applicable.
Electrical Box Compatibility: Bases are compatible with 3-1/2" Oct, 4" Oct, and 4" Square electrical boxes, depending on the model.

Usage Features

LED Visual Indicators:
- Stand-by: Flashing green LED.
- Alarm: Solid red LED with flashing green (for smoke/heat detectors) or solid red (for EVCA-P(-Z)).
- SCI LED (EVA-STB-SCI): Yellow, indicating SCI status.
Tamper Resistance Feature: EVA-UB, EVA-S6, and EVA-STB series bases have a tamper-resist feature. This allows the detector to be locked onto the base using a small hexagonal wrench, preventing unauthorized removal. The locking screw is turned counterclockwise until it extends about 4 mm (3/16") from the rim of the base. It is not recommended to use this feature in high-ceiling installations where a ladder is needed.
Short Circuit Isolation (EVA-STB-SCI): This base model includes a short circuit isolator to prevent a single fault from disabling the entire loop.
Relay Output (EVA-STB-RL): Provides a dry contact relay for connecting to optional equipment. The output is normally closed (N/C-COM) or normally open (N/O-COM) in normal status.

Maintenance Features

Testing Procedures:
- Direct Heat Method (Hair dryer of 1000-1500 watts): For heat detectors, direct heat towards the sensor from about 15cm (6 inches) away. The red LEDs should light when the alarm set point is reached.
- Heat Calibur HO-HC11 Heat Detector Tester: A dedicated tester for heat detectors, allowing selection of test type (ROR or FIXED), test mode (STD or MULTI), and temperature range (HIGH or LOW). The tester is placed over the detector to initiate the test.
- Smoke Detector Testing (Go / No-Go):
  - For EVA-PY/EVA-PYH: Use HSI FIRE & SAFETY Aerosol canned smoke testers "25S" or "30S". The detector should alarm within 15 seconds, with the red LED on and green LED flashing.
  - For EVA-DPH: Use Smoke Detector Sensitivity Analyzer Model 501-B (Gemini Scientific Corp.) with a concentration setting of 1.0%/ft. The detector should alarm within 40 seconds, with the red LED on and green LED flashing.
  - For EVCA-P(-Z): Use Solo 330 Aerosol Dispenser with Solo A3 Smoke Detector Tester (No Climb Products Ltd.). The detector should alarm within 15 seconds, with the red LED on.
- Smoke Detector Sensitivity Testing:
  - For EVA-PY/EVA-PYH/EVA-DPH: Use Smoke Detector Sensitivity Analyzer Model 501-B. Sensitivity limits are 0.6-1.3%/ft for EVA-PY/EVA-PYH and 0.3-0.5%/ft for EVA-DPH.
  - For EVCA-P(-Z): Use Detector Sensitivity Tester "Trutest". Sensitivity limits are 1.78-3.60%/ft.
Dust Covers: Recommended during construction to prevent false alarms from dust exposure. Must be removed after installation.
Detector Guards: Smoke detectors should not be used with detector guards unless the combination has been evaluated and found suitable.
Troubleshooting: If a detector fails tests or gives false alarms, it should be cleaned and retested. If it continues to fail, it should be returned for repair.
System Reset: After an alarm condition, the detector is automatically reset by the control panel. A short time may be needed for residual aerosol to disperse before resetting.
Pre-test Notifications: Before testing, notify proper authorities and disable the system to prevent unwanted alarms.
Periodic Testing: All sensors must be tested after installation and periodically thereafter, in compliance with NFPA 72 and local AHJ requirements.
One Man Walk Test: The control panel should be set to "One Man Walk Test" mode during site testing.

Installation Guidelines

Power Supply: Do not use products outside the rated power supply voltage range.
Modifications: Do not disassemble, repair, or modify the products.
Wiring: Turn power off before wiring. Use only specified testers. Break wire runs to provide monitoring of connections. Do not connect different gauge cables at one terminal. Ensure correct polarity.
Placement: Avoid places with plenty of air flow (ventilation fans, air conditioners, drafts), close to heating appliances, with constantly high temperature or humidity, lots of dust or insects, exhaust gas (garages), or where oil, dust, iron powder, chemicals, or hydrogen sulphide may occur.
SLC Line Impedance: Maximum 50 ohms, 2km. Refer to control panel/module instruction manual for loop load and resistance.
Electrical Box: Ensure compatibility with the chosen base model.

Cautions

Failure to follow installation instructions, NFPA standards, local codes, and AHJ requirements may result in failure of detectors to initiate an alarm.
Do not use heat guns for paint stripping or soldering pipes near heat detectors, as they can cause damage.
Do not disassemble, repair, or modify products, as this may cause fire or electric shock.