User Guide

ManualsBrandsSiemens ManualsHeating SuppliesExposed Key/Knob Adjustment with Thermometer Room Thermostat Cover

Powers

Controls

Technical Instructions

Document No. 155-072P25

TH 832-1

Rev. 1, April, 2000

D Room Thermostat Direct Acting

Siemens Building Technologies, Inc.

Description

Powers D Room Thermostat is a gradual-acting, pneumatic instrument recommended

for room temperature control in heating and air conditioning applications. Among the

outstanding features of the D thermostat are its rapid response to temperature change

and its unique design which prevents a constant waste of air. Other features include a

wide range of adjustment, noncorrosive parts, ease of calibration and quiet operation.

These factors ensure long, dependable life and maintenance-free operation.

The thermostat cover and base are designed to blend with all color schemes and

furnishings. The standard instrument has a calibrated thermometer and either exposed

or concealed adjustment. Factory replacement parts and instructions for servicing are

available should they be required.

Application

While the D Room Thermostat is primarily designed for control of individual rooms

heated or cooled by radiation, ventilation or an air conditioning system; it is very

versatile. Other applications include room control of radiant panels, finned radiation and

unit ventilators.

Product Numbers

Table 1.

Product

Numbers

Description

832-0120 Concealed Adjust with Thermometer

832-0490 Concealed Adjust without Thermometer

832-0500 Exposed Key Adjust with Thermometer

832-1260 Exposed Key Adjust with Thermometer

Typical

Specifications

All thermostats are equipped with a vapor pressure operated sensing element, shall be

capable of responding to a change of plus or minus 1/2°F (0.3°C), and shall be gradual

acting capable of positioning valves or dampers in intermediate positions. The

thermostats shall be of the non-bleed type so that no air shall be used except when

positioning a valve or damper motor. The thermostats shall be provided with an

adjustable range of 60 to 85°F (15-30°C).

Summary of content (5 pages)

PAGE 1
Technical Instructions Document No. 155-072P25 TH 832-1 Rev. 1, April, 2000 PowersTM Controls D Room Thermostat Direct Acting Description Powers D Room Thermostat is a gradual-acting, pneumatic instrument recommended for room temperature control in heating and air conditioning applications. Among the outstanding features of the D thermostat are its rapid response to temperature change and its unique design which prevents a constant waste of air.
PAGE 2
Technical Instructions Document Number 155-072P25 Rev. 1, April, 2000 Specifications Operating Operation D Room Thermostat Direct Acting Range Sensitivity Normal supply pressure Maximum supply pressure Maximum ambient temperature Temperature response Weight Dimensions 60 to 85°F (15 to 30°C) 2-1/4 psi/°F (27.0 kPa/°C) 18 psi (124 kPa) 30 psi (206 kPa) 110°F (43°C) 1/2°F (0.3°C) 3 lbs. (1.
PAGE 3
D Room Thermostat Direct Acting Calibration Technical Instructions Document Number 155-072P25 Rev. 1, April, 2000 1. Check room temperature. It should be approximately 70° to 75°F (21° to 24°C). 2. Remove thermostat cover using adjustment key (Part No. 356-055). See Figure 2. Figure 2. Removing the Thermostat Cover. 3. Loosen test screw (see Figure 3) 1/2 turn counterclockwise then attach test gauge and hose assembly over the test screw body. Figure 3. 4.
PAGE 4
Technical Instructions Document Number 155-072P25 Rev. 1, April, 2000 D Room Thermostat Direct Acting Construction 19 1 34 8 18 TH0516R1 2 33 13 9 10 11 14 7 TH0515R1 20 17 12 3 4 5 6 35 Figure 4. Supply Valve. 23 22 21 24 32 16 31 30 TH0514R1 15 37 25 29 28 27 Item Description Part 18. 19. 20. Lever Asssembly Self-locking Pivot Pin Test Valve Body — — 833-008 21. 22. 23. 24. 25. 26. 27. 28.
PAGE 5
D Room Thermostat Direct Acting Technical Instructions Document Number 155-072P25 Rev. 1, April, 2000 Table 4.