OJ Electronics ETFWP-998 Instructions Manual

I N S T R U C T I O N S
ETFWP-998
67543 10/15 - (OSH)
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English
LIST OF FIGURES
The following figures are located at the back of
the instructions:
Fig. 1: Product, dimensioned sketch
Fig. 2: Mounting holes, dimensioned sketch
Fig. 3: Terminal overview
Fig. 4: Detachment of selector dial
Fig. 5: Overview of product parts
INTRODUCTION
Read this manual thoroughly and follow the in-
structions it contains before taking ETFWP-998
into use.
ETFWP-998 is used for measuring room tem-
peratures and in an OJ GreenZone™ system
for offsetting of the desired room temperature.
ETFWP-998 is installed on the wall in the
room that is to be regulated. ETFWP-998 can
beneficially be used in for example hotel rooms,
classrooms, hospital wards and similar rooms
where it is desired that the temperature be able
to be controlled individually and by the users
who are present in the room.
PRODUCT PROGRAMME
TYPE PRODUCT
ETFWP-998 Combined room sensor and
potentiometer
Key to symbols
Particular attention should be paid to the sec-
tions in these instructions which are marked
with symbols and warnings.
Warning
This symbol is used where there is a risk of
severe or fatal personal injury.
Caution
This symbol is used where potentially danger-
ous situations may result in minor or moderate
personal injury. The symbol is also used to warn
against unsafe and hazardous conditions.
Note
This symbol is used to indicate important
information and in situations which may result in
serious damage to equipment and property.
FUNCTION
ETFWP-998 is furnished with a built-in room
sensor (PT1000) and a selector dial for setting
the room temperature. The product is furnished
with ventilation openings at the top and bottom
in order for the room sensor to be able to meas-
ure the correct room temperature. By using the
product's selector dial, the user can offset the
desired room temperature.
When ETFWP-998 is used together with
OJ GreenZone™, the maximum temperature
offset range is set in the OJ GreenZone™ Mas-
ter's user interface.
ETFWP-998 is furnished with dots symbolising
a temperature scale, as well as + and – symbols
indicating a positive and negative temperature
offset.
INSTALLATION
ETFWP-998 must be mounted on the wall
approx. 1.6-1.7 m above the floor level
and such that there is free air circulation
around the product to achieve optimum
measurement and regulation of the room
temperature. Avoid placing ETFWP-998 in
draughts and direct sunlight.
Open ETFWP-998 by carefully detaching
the selector dial (see Fig. 5, A). The
selector dial can possibly be loosened
with the point of a knife, a flat-blade
screwdriver or the like (see Fig. 4).
Once the selector dial has been detached, the
screw (see Fig. 5, B) holding the top part to the
back cover becomes visible. Loosen this screw
by turning it counterclockwise with a Phillips
screwdriver. Remove the top part (see Fig. 5, C).
Once the top part has been removed, the front
frame (see Fig. 5, E) can also be removed.
ETFWP-998 is now ready to be mounted on the
wall structure.
The mounting holes on the product's back
cover must always be used for fastening
the product to the wall (see Fig. 2).
To avoid short-circuits in the product, no
design changes may be made to the
product. New holes must not be made in
the back cover of the product for
fastening purposes. Depending upon the
design of the wall, it may be beneficial to
use rawl plugs in concrete and stone
structures.
For electrical mounting, ETFWP-998 is furnished
with a terminal strip for max. 1.5 mm
sectional area (see Fig. 3).
The PT1000 room sensor element is connected
to terminal strip terminals ø1 and ø2. The poten-
tiometer is connected to terminal strip terminals
ø3, ø4 and ø5 with + on terminal ø5, and GND
(-) on terminal ø3. The variable potentiometer
signal must be mounted on terminal ø4. Once
ETFWP-998 has been mounted on the wall, and
all electrical connections correctly mounted,
ETFWP-998 can be reassembled again.
Check that all electrical connections are
correctly fastened, and that all wires are
inside the frame so that the top part can
be freely mounted without pinching any
wires. Start by carefully placing the front
frame (see Fig 5, E) on top of the back
cover.
© 2015 OJ Electronics A/S
Hold the front frame firmly against the back
cover with one hand while placing the top part
(see Fig. 5, C) on top of the front frame.
Tighten the screw (see Fig. 5, B) again. The se-
lector dial (Fig. 5, A) can now be mounted again.
In order for the scale to be appropriate, it
is important that the potentiometer (see
Fig. 5, D) be set in the middle position
(horizontal) precisely as shown in Fig. 5.
Once you have made sure that the potentiom-
eter's selector dial is set as shown in Fig. 5, D,
then the selector dial (see Fig. 5, A) can be set
on again and carefully pressed into place. The
line printed on the selector dial must be placed
horizontally, so it points precisely towards the
middle position.
ADJUSTMENT
If the scale on the front and the expected output
signal do not correspond, then the selector dial
can be offset.
Start by carefully detaching the selector dial
(see Fig. 5, A).
The selector dial can possibly be
loosened with the point of a knife, a
flat-blade screwdriver or the like
(see Fig. 4). The potentiometer screw
(see Fig. 5, D) can be carefully turned with
a flat-blade screwdriver in the direction
that the adjustment should be made, then
the selector dial (see Fig. 5, A) is set on
again and carefully pressed back into
place.
TECHNICAL DATA
Temperature sensor ................................ PT1000
Supply voltage ....................................... 10 V DC
Potentiometer ....................................... 10 Kohm
Scale range .................................. +/- with 8 dots
DC output ................................................. 0-10 V
Electrical connections ...................Max. 1.5 mm
....................................................screw terminals
Ambient temperature .................... -10 °C/+50 °C
Dimensions ...............................84 x 84 x 29 mm
Enclosure .....................................................IP 30
SERVICE AND MAINTENANCE
ETFWP-998 contains no components which
require service or maintenance.
2 cross- Please contact your supplier if faults arise.
DISPOSAL AND ENVIRONMENTAL
PROTECTION
Help protect the environment by disposing of
the packaging and redundant products in an
environmentally responsible manner.
Product disposal
Products marked with this symbol
must not be disposed of along with
household refuse but must be deliv-
ered to a waste collection centre in
accordance with current local regula-
tions.
OJ ELECTRONICS A/S
Stenager 13B · DK-6400 Sønderborg
Tel. +45 73 12 13 14 · Fax: +45 73 12 13 13
oj@ojelectronics.com · www.ojelectronics.com
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