Service Parts - Siemens TH 192 DN Technical Instructions

Technical Instructions
Document Number 155-067P25
October 28, 2010
Chassis Tube
Connector and
Restrictor Plate
Replacement

Service Parts

Page 12
1. Remove thermostat chassis from wall. Terminal does not have a ball check valve.
NOTE: You must close off the supply air. For example, use a connector with the supply air
terminal plugged.
2. Remove two Phillips head screws from connector on back of thermostat chassis. Pull
connector out of recess. If necessary, pry connector loose with a screw driver, but be
careful not to damage restrictor plate and gasket.
3. Remove gasket from under connector. Remove restrictor. Remove second gasket from
under restrictor.
4. Use restrictor replacement kit 192-321 to replace gasket, restrictor, and second gasket.
NOTE: The restrictor plate is keyed to ensure proper orientation during installation.
5. Remove filters from existing connector and insert in new connector. Or, if filters are dirty,
use restrictor replacement kit 192-321 to replace filters.
6. Use chassis tube connector replacement kit 192-525 to replace connector and mounting
screws.
The following chart lists accessory parts and tools available for thermostat service.
Dial thermometer (-40 to 140°F, -40 to 60°C) with pocket case
Basic pneumatic calibration kit with thermometer, gauge, squeeze
bulb, fittings, and case
Test head kit
Calibration tools
Test probe to check pressure with cover on
Needle probe with 1-1/2" diameter gauge 0-30 psig
(0-200 kPa) and calibration/cover wrench
Needle probe, no gauge (package of five)
1-1/2" diameter gauge , 0-200 kPa,
back connected 1/8" NPT male
1-1/2" diameter compound gauge, 0-30 psig/0-200 kPa,
back connected 1/8" NPT male
1-1/2" diameter compound gauge, 0-30 psig/0-200 kPa,
bottom connected 1/8" NPT male.
Replacement for use with 192-633
Chassis tube connector replacement kit with mounting screws
(material for 10 thermostats included)
Restrictor plate replacement kit with filters and gasket
(material for 10 thermostats included)
Description Part Number
141-0573
832-177
832-179
832-178
192-633
192-759
142-0344
142-0373
142-0426
192-525
192-321
Siemens Industry, Inc.