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129-077
Installation Instructions
Rev. 2, November, 1999
4.
Mount the cover over the thermostat.
N N N N O O O O T T T T E E E E : : : :
For applications that use the 1/2-inch large
set point adjustment knob, align the key
hole in the cover over the shaft protruding
from the thermostat when mounting the
cover.
Use the hex key end of the calibration and cover screw
wrench or a 1/16" Allen wrench to tighten the two
screws that secure the cover in place.
5.
Place the optional 1/2-inch large set point adjustment
knob on the shaft protruding through the cover. Use
the hex key end of the calibration and cover screw
wrench or a 1/16" Allen wrench to tighten the set
screw on the knob.
The installation is complete.
R R R R e e e e m m m m o o o o d d d d e e e e li li li lin n n n g g g g I I I I n n n n s s s s t t t t a a a a ll ll ll lla a a a t t t t i i i i o o o o n n n n R R R R e e e e f f f f e e e e r r r r e e e e n n n n c c c c e e e e
When converting from Model TH180 or TH182 to the
TH19X, you need:
•
TH192 Chassis.
•
A new cover. The TH180 or TH182 cover does not
fit the TH19X chassis or vice versa.
•
Terminal adapters. These adapters are required to
retain the plug-in feature only. Otherwise, 5/32"
(4 mm) tubing can connect directly to the
thermostat chassis. Use compression rings (part
number 141-388) to secure connections.
F F F F i i i i gu
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gur r r r e e e e 1 1 1 1 . . . . T T T T h h h h e e e e r r r r m m m m o o o o s s s s t t t t a a a a t t t t I I I I n n n n s s s s t t t t a a a a ll ll ll lla a a a t t t t i i i i on
T T T T e e e e r r r r m m m m i i i i n n n n a a a a l l l l K K K K i i i i t t t t a a a a n n n n d d d d 1 1 1 1 82
82- - - - 685
82
82
P P P P a a a a ge
ge 2 2 2 2 o o o o f f f f 4 4 4 4
ge
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on ( ( ( ( u u u u s s s s i i i i ng
on
on
ng 1 1 1 1 92
ng
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92- - - - 4 4 4 4 81 T
92
92
81 Tu u u u b b b b i i i i ng
81 T
81 T
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685 D D D D r r r r y y y y W W W W a a a a l l l l l l l l M M M M o o o o un
685
unt t t t i i i i n n n n g g g g K K K K i i i i t t t t .) .) .) .)
un
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When converting from competitor models to the TH19X,
you need:
•
TH19X Chassis.
•
A new cover.
•
Adapter Kit (see TB-214, TH192 Adapter Kits
Technical Bulletin, 155-231).
P P P P i i i i p p p p i i i i ng
ng
ng
ng
N N N N O O O O T T T T E E E E : : : :
All piping (Figures 2 and 3) must conform to
local codes and regulations and must comply
with the local authority having jurisdiction.
F F F F i i i i gu
gur r r r e e e e 2 2 2 2 . . . . T T T T H H H H 1 1 1 1 9 9 9 9 2 2 2 2 DN
gu
gu
F F F F i i i i gu
gur r r r e e e e 3 3 3 3 . . . . T T T T H H H H 1 1 1 1 9 9 9 9 2 2 2 2 DN
gu
gu
T T T T he
her r r r m m m m o o o o m m m m e e e e t t t t e e e e r r r r C C C C a a a a li li li lib b b b r r r r a a a a t t t t i i i i o o o o n n n n
he
he
1.
Use a test thermometer to read the current
room temperature.
2.
Place a screwdriver in the center of the
thermometer assembly (Figure 4). Carefully
rotate the thermometer assembly until the
pointer tip indicates the correct room
temperature.
N N N N O O O O T T T T E E E E : : : :
C C C C h h h h a a a a ng
nge e e e o o o o v v v v e e e e r r r r P P P P o o o o i i i i n n n n t t t t A A A A d d d d j j j j u u u u s s s s t t t t m m m m e e e e n n n n t t t t
ng
ng
The changeover point is factory set to occur
between 19 and 22 psi (131 and 152 kPa). The
changeover point can be field adjustable to occur
between 14 and 22 psi (96 and 152 kPa).
1.
Connect a pressure gauge or a manometer to
measure supply pressure to thermostat. Use
30 psi (207 kPa) supply through a positioning
switch so pressure can be fully variable.
2.
Determine the current change over point.
Turn the day dial so that the day and night
ng
ng
ng
control pressures are different. Then note the
changeover point on the control gauge as the
supply pressure changes.
DN T T T T h h h h e e e e r r r r m m m m o o o o s s s s t t t t a a a a t t t t C C C C o o o o n n n n n n n n e e e e c c c c t t t t i i i i o o o o n n n n s s s s . . . .
DN
DN
DN
DNV V V V T T T T he
DN
her r r r m m m m o o o o s s s s t t t t a a a a t t t t C C C C o o o o n n n n ne
he
he
nec c c c t t t t i i i i o o o o n n n n s s s s . . . .
ne
ne
Avoid breathing on or touching the
bimetal spiral since this affects the
temperature reading.
Siemens Building Technologies, Inc.
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