Installation Instructions
Document No. 129-116
September 24, 2009
TH 192 Pneumatic Room Thermostat
Retrostat Kits
Item Number 129-116, Rev. FA
Page 1 of 12
Product Description
The TH 192 Pneumatic Room Thermostat Retrostat
kits convert most existing pneumatic room
thermostats to a Powers™ Controls TH 192 direct or
reverse acting, two-pipe, single setpoint device. This
kit includes a cover that can be configured to
conceal or expose the setpoint adjustments, setpoint
indicator, and thermometer. Also, the kits can
include an optional 1/2-inch large, exposed setpoint
adjustment knob.
Contents
Part
Quantity
Retrostat Cover Kit
1
Thermostat *
1
Hardware kit
1
Optional 1/2-Inch Large, Exposed
Setpoint Knob
1
Adapter Frame (192-308)
1
* Includes thermostat installation instructions.
Product Numbers
Retrostat Kit
(See Notes below)
Type
192-840
Direct Acting Fahrenheit Scale
192-841
Reverse Acting Fahrenheit Scale
192-850
Direct Acting Celsius Scale
192-851
Reverse Acting Celsius Scale
NOTES:
1. Includes all parts needed for all conversions
listed in Table 1 including installations where a
large rough-in hole must be covered. These
installations may require an adapter frame
(192-308).
2. For Retrostat Kits with white cover, order the
standard kit with “W” suffix.
3. For Retrostat Kits with optional 1/2-inch large,
exposed setpoint adjustment knob, order the
standard kit with “K” suffix.
Required Tools
•
Calibration and cover screw wrench
(192-632) or 1/16” Allen wrench and 1/8”
open-end wrench
•
Medium flat-blade screwdriver
•
Small level
•
Accurate thermometer
•
Needle nose pliers
Prerequisites
•
Review all of these instructions before you
begin installation.
•
Check job drawings for any site-specific
information.
•
Verify that the existing thermostat installation
has its supply and return air lines connected
properly.
•
Make certain air supply is 18 to 25 psi
(124 to 172 kPa) normal.
•
Obtain the installation instructions provided
with the thermostat in the Retrostat Kit. The
document provides instructions for calibrating
the thermostat.
•
Make certain a supply of wall anchors and
plastic ties are available.
Expected Installation Time
1 hour
