What are the recommended environmental conditions for installing the 6820 system?

The system meets NFPA requirements for operation at 0-49°C (32-120°F) and at a relative humidity of 93% ± 2% RH (non-condensing) at 32°C ± 2°C (90°F ± 3°F). However, the useful life of standby batteries and electronic components may be adversely affected by extreme temperatures and humidity, so it is recommended that the system be installed in an environment with a normal room temperature of 15-27°C (60-80°F). (Page 3)