Robertshaw 9720i User Manual download pdf (Page 2)

IMPORTANT SAFETY INFORMATION

WARNING:

 Always turn off power at the main power source by unscrewing fuse or switching circuit

breaker to the off position before installing, removing, or cleaning this thermostat.

 Read all of the information in this manual before programming this thermostat.

 This is a 24V AC low-voltage thermostat. Do not install on voltages higher than 30V AC.

 All wiring must conform to local and national building and electrical codes and ordinances.

 Do not short (jumper) across terminals on the gas valve or at the system control to test

installation. This will damage the thermostat and void the warranty.

 Do not connect ground to any terminal in this unit.

 This thermostat is equipped with automatic compressor protection to prevent potential

damage due to short cycling or extended power outages. The short cycle protection provides

a 5-minute delay between heating or cooling cycles to prevent the compressor from being

damaged.

 Do not switch system to cool if the temperature is below 50°F (10°C). This can damage the

cooling system and may cause personal injury.

 Use this thermostat only as described in this manual.

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Robertshaw 9720i User Manual Page 2