Nittan EVCA-P - Section 5 - Base Models; Section 6 - Installation

DW1500110 Rev.K1
Sep 18 2015
4
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.
Model
Description
Instruction manuals
Diameter
Number of
Terminals
EVA-UB4
Standard mounting base
DW1401959 Rev.K1
4 inch
4
EVA-UB4-6*
Larger mounting base
DW1401959 Rev.K1
6 inch
4
* The Model EVA-UB4-6 mounting base is intended for applications where a 4 inch square or octagonal electrical
junction box is required.
Section 6 – INSTALLATION
6.1 Before installing
These smoke detectors must be installed in compliance with the manuals of the Control Panel NFU-7000 series.
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.
6.1.1 Location requirement
When installing the detector please consider the following items. Otherwise the detector might not provide optimum
performance.
- Indoor use only.
- Place the detector away from a ventilation fan or the air outlet of air conditioner, at least 1.5 m (5 ft.).
- On the ceiling, place the detector at least 10 cm (4 in.) from the wall.
- On the wall, place the detector between 10 to 30 cm (4 to 12 in.) below the ceiling.
The detector should not be installed in places such as:
- 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 where vapor can directly come in
- Place with exhaust gas such as garage
6.2 Smoke Detector Applications
Smoke detectors are designed to sense the presence of smoke particles. In order to sense the particles, smoke
detectors must be placed where smoke can reach them. When determining the location of smoke detectors, potential
fire locations should first be evaluated, and paths of smoke flows should be determined. It is preferable to conduct
actual field tests wherever it is practical to do so. It is desirable to locate smoke detectors at the points of intersection of
smoke travel from potential fire sources throughout the area. Ceiling height, construction, and ventilation affect the
performance of smoke detectors.