PRECAUTIONS
▲! WARNING
Do not short out terminals on gas valve or primary control to test. Short or incorrect wiring will damage thermostat and could cause personal injury and/or property damage.
Do not use on circuits exceeding specified voltage. Higher voltage will damage thermostat and could cause shock or fire hazard.
Thermostat installation and all components of the system shall conform to Class II circuits per the NEC code.
▲! CAUTION
To prevent electrical shock and/or equipment damage, disconnect electric power to system at main fuse or circuit breaker box until installation is complete.
NOTE
Read all instructions thoroughly before beginning installation.
This thermostat is intended for use with a low voltage system. Do not use directly on a line voltage system unless an isolation relay/transformer is installed.
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Do not exceed ratings shown in the Specifications section, preceding page. If in doubt about the electrical ratings of your heating/cooling system, have it inspected by a qualified heating and air condition- ing contractor or licensed electri- cian.
All wiring must conform to local and national electrical codes and ordinances.
This control is a precision instru- ment, and should be handled carefully. Rough handling or distorting components could cause the control to malfunction.
Installation
