Siemens Powers TH 192 S Technical Instructions page 2

Technical Instruction
Document No. 155-065P25
Rev. 1, July, 1999
A A A A pp ppli li li lic c c c a a a a t t t t i i i i o o o o n n n n pp pp
P P P P i i i i p p p p i i i i ng ng ng ng
Page 2
TH 192 S thermostats are temperature sensing devices that control pneumatic valve
and damper actuators in heating and cooling applications such as air conditioners, space
heaters, unit ventilators, and air volume controllers. The thermostats maintain energy
management (maximum economy) and occupant comfort. TH 192 S thermostats are
available with covers that conceal or expose the set point adjustment dial.
Use TH 192 S 1-pipe thermostats with an external restrictor (20 scim, 5.4 ml/sec) where
a limited air capacity operates a single valve and/or actuator. Use TH 192 S 2-pipe
thermostats where multiple valves and actuators, used with or without high/low limiting
controls, require higher air capacities.
1 - PIPE
EXTERNAL RESTRICTOR EXTERNAL RESTRICTOR
R1
S
DA RA
HOT CHILLED
WATER
N.O. VALVE
CHILLED WATER
N.C. VALVE
DIAGRAM 1
NOTE: DOTTED LINES ARE ALTERNATIVE CONTROL SCHEMES.
F F F F i i i i g g g g u u u u r r r r e e e e 1 1 1 1 . . . . T T T T y y y y p p p p i i i i c c c c a a a a l l l l T T T T H H H H 1 1 1 1 9 9 9 9 2 2 2 2 S S S S 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 A A A A pp
F F F F i i i i g g g g u u u u r r r r e e e e 2 2 2 2 . . . . T T T T H H H H 1 1 1 1 92 92 S S S S O O O O n n n n e e e e - - - - P P P P i i i i p p p p e e e e 92 92
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 nn
1 - PIPE
R1
S
R1
S
DA
WATER
N.O. VALVE
CHILLED
WATER
HOT WATER
N.C. VALVE
DIAGRAM 2 DIAGRAM 3
nne 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 . . . .
nn nn
2 - PIPE
R1
S
S S
RA
CHILLED
WATER
N.C. VALVE
N.O. VALVE
HOT WATER
N.O. VALVE
DIAGRAM 4
ppl l l l i i i i c c c c a a a a t t t t i i i i o o o o n n n n s s s s . . . .
pp pp
F F F F i i i i g g g g u u u u r r r r e e e e 3 3 3 3 . . . . T T T T H H H H 1 1 1 1 92 92 S S S S T T T T w w w w o o o o - - - - P P P P i i i i p p p p e e e e 92 92
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 nn nne 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 . . . .
nn nn
Siemens Building Technologies, Inc.
2 - PIPE
HOT WATER
N.C. VALVE
Landis Division