Viega Basic Heating Control Installation Manual page 36

CHECKOUT
MAINTENANCE
FIELD REPAIR
DIMENSIONAL DATA
On October 1st, 2009, TAC became the Buildings business of its parent company Schneider Electric. This document reflects the visual identity of Schneider Electric,
however there remains references to TAC as a corporate brand in the body copy. As each document is updated, the body copy will be changed to reflect appropriate
corporate brand changes.
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document is subject to change without notice.
F-27027-5
1. Verify jumper pin selections.
2. Verify that the T200 is wired correctly to your heating and or cooling loads.
3. Confirm that 75 milliamps are available at all times. To measure the current draw
connect an ammeter (set to measure milliamps) in series with the heat or cool output.
If power value is below 75 milliamps install a 250 ohm 5 watt resistor in parallel across
the switched load. Recheck for 75 milliamps. The T200 thermostats must have 75
milliamps to function properly.
4. Verify system Heat/Cool/Fan outputs:
Heating — Connect a voltmeter in parallel across the heat output terminal, W, and
common of the power source.
Cooling — Connect a voltmeter in parallel across the cooling output terminal, Y, and
common of the power source.
Fan — Connect a voltmeter in parallel across the fan terminal, G, and common of the
power source.
5. The display will show the current room temperature as a number. Up to five dashes will
appear under the number. Each dash represents 1/5 of a degree. The thermostats
ON/OFF switching is based on whole degrees.
The T200 series requires no maintenance. Replace defective modules.
Regular maintenance of the total system is recomended to assure sustained, optimum
performance.
Replace battery with Energizer 357 or equivalent as needed. Replace any damaged or failed
components with functional replacements.
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Figure-7 T200 Series Dimensions.
Schneider Electric
1354 Clifford Avenue
P.O. Box 2940
Loves Park, IL 61132-2940
www.schneider-electric.com/buildings
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SYSTEM
SWITCH
72 72
FAN
SWITCH
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