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Johnson Controls 270XT Serie Manual De Instrucciones página 2

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2
M
ounting
The control can be wall mounted either by using two
screws through the holes in the back of the case or
using the standard mounting bracket. The control
must be mounted in that position where the sensing
element is downside the control.
N
ote
The control should be installed where the
ambient temperature surrounding the case and
bellows is always higher than the control
setting. If the ambient temperature around the
enclosure drops below the control setting the
bellows rather than the sensing element will
operate the control.
A
djustment
The controls have a field adjustable setting and a
fixed differential. A low limit stop, factory setting at
3 °C can be supplied at additional cost for quantity
orders only.
Range °C
Diff. °C
-10 to +12
3 fixed
-10 to +12
manual
reset
-10 to +12
3 fixed
-10 to +12
manual
reset
-24 to +18
4 fixed
-24 to +18
manual
reset
* With 7.5 cm bulb support to apply packing nut FTG13A-600 for direct immersion applications.
** With 6 m "wrap-around" capillary, when any 30 cm or more of this element senses a temperature as low as the
cut-out point, the contact will open.
O
ptional accessories (for 270XT and 270XTAN, with "wrap-around" cap.
Fig. 2
Bracket:
Order number KIT012N600 (6 pcs)
Catalogue Section 1
T
ype number selection table
Bulb and
Bulb well no
capillary
(not incl.)
3 m cap.
-
style 9**
3 m cap.
-
style 9**
6 m cap.
-
style 9**
6 m cap.
-
style 9**
2 m cap.
WEL14A602R
style 1*
2 m cap.
WEL14A602R
style 1*
C
ontact functions
2
Fig. 1
1-2 open on temperature decrease
R
epair and replacement
Repair is not possible. In case of an improperly
functioning control, please check with your nearest
supplier. When contacting the supplier for a
replacement you should state the type/model number
of the control. This number can be found on the data
plate or cover label.
Sensing
Max. bulb
element
temp. °C
3.2 mm x 3 m
200
3.2 mm x 3 m
200
3.2 mm x 6 m
200
3.2 mm x 6 m
200
9.5 x 77 mm
120
bulb and 2 m
cap.
9.5 x 77 mm
120
bulb and 2 m
cap.
4.8
24
Fig. 3
Mounting clip:
Order number T-275-101
270XT
Issue 03/03/2003
3
θ
<
1
Order number
270XT-95078
270XTAN-95088
270XT-95008
270XTAN-95008
270XT-95068
270XTAN-95048
© 2003 Johnson Controls Inc.
Order No. PD-270XT-E

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