Nittan EVA-UB4 User manual

DW1401959 Rev.K1
Sep 18, 2015
1
Instruction Manual
EVA-UB4/EVA-UB4-6
Mounting Base
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.
! CAUTION
Do not disassemble, repair, or modify the products. It may cause a fire or electric
shock.
! CAUTION
Make sure to turn the power off before commencing any wiring work. Otherwise it
may cause electric shock or damage to equipment.
! CAUTION
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
EVA-UB4 series base is detector base which is designed to be used with the model EVA-PY, EVA-PYH,
EVA-DPH, EVA-H2, EVA-H2-H and EVCA-P detector series heads. The series includes EVA-UB4, which is 4 inch
standard base, and EVA-UB4-6, which is 6 inch standard base.
The terminals of the base are used depending on the detector heads.
12 –20AWG field wire can be connected to the terminals.
EVA-UB4 is mounted to a 3-1/2”octagonal electrical box.
EVA-UB4-6 is mounted to a 3-1/2” and 4” octagonal electrical box, or 4” square electrical box. EVA-UB4-6 can be
also used to cover larger opening around an electrical box.
NITTAN COMPANY, LIMITED
1-54-5 SASAZUKA, SHIBUYA-KU, TOKYO 151-8535, JAPAN
http://www.nittan.com

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Section 2 –TERMINALS
EVA-UB4 / EVA-UB4-6 are supplied with 4 terminals as standard. The terminals of the bases are configured as
the table below:
Terminal
Description
1
SLC positive
3
Not used
5
Not used
6
SLC negative
Figure 1: Position of terminals (EVA-UB4)
Figure 2: Position of terminals (EVA-UB4-6)
6
1
5
3
6
1
5
3

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Section 3 –DIMENSIONS
Figure 3: Dimension of EVA-UB4
Figure 4: Dimension of EVA-UB4-6
160.0 (6.3)
15.0 (0.59)
mm (inch)
104.0 (4.1)
15.0 (0.59)
mm (inch)

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Section 4 –DETECTOR MODELS
EVA-UB4 / EVA-UB4-6 are available for use with the EVA series detectors. It is important to use the correct
detector for each application. The standard range of detectors available is as follows:
Model
Description
Instruction Manuals
EVA-PY
Analog addressable photoelectric smoke detector
DW1401832 Rev.K1
EVA-PYH
Analog addressable combination photoelectric
smoke and heat detector 57°C (135°F ) with
8.3°C (15°F) rate of rise
DW1401831 Rev.K1
EVA-H2
Analog addressable heat detector 57°C (135°F)
with 8.3°C (15°F) rate of rise
DW1401833 Rev.K1
EVA-H2-H
Analog addressable heat detector 83°C (181.4°F )
high temperature
DW1401833 Rev.K1
EVA-DPH
Analog addressable combination photoelectric
smoke (dual wave length) and heat detector
57°C (135°F) with 8.3°C (15°F) rate of rise
DW1401834 Rev.K1
EVCA-P
Conventional photoelectric smoke detector
DW1500110 Rev.K1
Section 5 –GENERAL OPERATION
EVA-UB4 / EVA-UB4-6 mounting bases are used to connect field wiring to the detector head. There are no
electronics in the mounting bases.
Section 6 –INSTALLATION
The product must be installed in accordance with the applicable NFPA standards, local codes and jurisdictional
authorities. Failure to follow these instructions may result in failure of the detector to report an alarm condition.
Note: NITTAN COMPANY, LIMITED is not responsible for the product which is improperly installed, maintained
and tested.
EVA-UB4 is designed to be mounted to 3-1/2” octagonal electrical box. Meanwhile EVA-UB4-6 is designed to be
mounted to 3-1/2” and 4” octagonal electrical box, and 4” square electrical box.
Before installing the product, check the continuity, polarity and insulation resistance of all wiring. Check that siting
is in accordance with the site system drawings and conforms to all applicable local codes such as NFPA 72.
In normal use, the EVA-UB4 / EVA-UB4-6 will be installed at ceiling level or wall position. Please refer to specific
detector instruction manual for details. Pass the field wiring through the cable opening in the center and from the
rear of the base. Install the base to the electrical box with screws via the base mounting holes. Connect the field
wiring to the base terminals, as detailed in figure 8 and 9, making sure the wiring does not obstruct mounting of
the detector head. Install the detector head by inserting it into the base and turning clockwise until the notch in the
detector rim aligns with base locking screw. To avoid unauthorized removal, turn the locking screw
counterclockwise until the screw extends out about 4 mm (3/16”) from the rim of the base (See Figure 7).
Note: If the detector is installed on a high ceiling where a tool (ladder, etc.) is needed, it is not recommended to
use the locking screw.
Smoke and heat detectors are not to be used with detector guards unless the
combination has been evaluated and found suitable for that purpose.
! CAUTION

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Figure 5: Installation to an electrical box for EVA-UB4
Figure 6: Installation to an electrical box for EVA-UB4-6
*Screws(M4) are not included in the package
Electrical box
Base
*Screws(M4) are not included in the package

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Figure 7: Position of locking screw
Locking Screw
Turn the locking screw
counterclockwise until
the screw extends out
about 4mm (3/16”) from
the rim of the base.

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Section 7 –CONNECTIONS
Figure 8: Connection to control panel NFU-7000 series
3
65
1
3
65
1
UL Listed
Module
EVA-ZMU-SCI
A+
A-
B+
B-
L-
L+
EVA-UB4/EVA-UB4-6 EVA-UB4/EVA-UB4-6
Class A wiring
3
65
1
3
65
1
UL Listed
Module
EVA-ZMU-SCI
A+
A-
EOL
+
-
10KΩ
L-
L+
EVA-UB4/EVA-UB4-6 EVA-UB4/EVA-UB4-6
Class B wiring
Figure 9: Connection of conventional detector EVCA-P
3
5
1
6
3
5
1
6
EVA-UB4 /
EVA-UB4-6
Control
Panel
NFU-7000
Series
LOOP+
LOOP-
LOOP+
LOOP-
EVA-UB4 /
EVA-UB4-6
Connect to analog detector EVA-PY, EVA-PYH, EVA-H2, EVA-DPH or EVA-H2-H.
To UL Listed control
panel NFU-7000 series
Connect to UL Listed conventional detector EVCA-P
for Class A wiring.
To UL Listed control
panel NFU-7000 series
Connect to UL Listed conventional detector EVCA-P

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Use cable AWG12-20 for wiring. Do not connect different gauge cables at one
terminal in order to prevent loosening.
! CAUTION
Do not connect cables in reverse polarity. Failure to connect the polarity correctly
could result in damage to other equipment.
! CAUTION
Figure 9: Connection to terminals
For system monitoring －For terminals do not use looped wire under terminals.
Break wire run to provide monitoring of connections.
! CAUTION
Correct wiring
Incorrect wiring

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Section 8 –SPECIFICATION
ULAmbient Installation Temperature
Range
0°C (32°F) to 65.6°C (150°F)
Storage Temperature Range
-20°C (-4°F) to 60°C (140°F)
Max Relative Humidity
Up to 95％RH，non-condensing
Environment
Indoor dry use only
Terminal
AWG12-20
Dimensions: EVA-UB4 / EVA-UB4-6
Φ104mm x 15mm H (Φ4.1” x 0.59” H) /
Φ160mm x 15mm H (Φ6.3” x 0.59” H)
Weight: EVA-UB4 / EVA-UB4-6
(Approximately) 50g (1.8 ounces) / 95g (3.3 ounces)
Conformity
UL268 and UL521
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

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Section 9 –WARRANTIES
9.1 Nittan warrants to the customers that:
(a) all products supplied hereunder will be of merchantable quality and will comply with any specification
agreed between Nittan and customer.
(b) it is not aware of any rights of any third party in the market which would or might render the sale of the
products, or the use of any of the trade marks on or in products, or the use of any of the trade marks on or
in relation to the products, unlawful.
9.2 In the event of any breach of the Nittan's warranty in Clause 9.1(a) whether by reason of defective
materials, production faults or otherwise, Nittan's liability shall be limited to:
(a) replacement of the products in question; or
(b) at the Nittan’s option, repayment of the price where this had been paid.
And the warranty period is three (3) years from the shipment from Nittan’s factory.
9.3 Notwithstanding anything to the contrary in this warranty terms, Nittan shall not be liable to the customer
by reason of any representation or implied warranty, condition or other term or any duty at common law, or
under the express terms of this warranty terms, for any consequential loss or damage whether for loss of
profit or otherwise and whether occasioned by the negligence of 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.
9.4 Customer shall indemnify Nittan against all loss, damages, liabilities, costs and expenses which Nittan
may suffer or incur as a result of or in connection with any breach by customer of this warranties terms or
any laws or regulations of any jurisdiction or any rules of any governing authorities.