This app now features access to over 400+ name brand HVAC thermostat manuals to be accessed and shared. The selected HVAC Thermostat manuals are automatically saved to your mobile device after download. You have the ability to forward these manuals via email to your customer, office, etc. You have the ability to request IOMs that we will email to you and add them to next update. LIST OF THE TOP BRANDS IN THE APPAmerican standard HVAC Thermostats Aprilaire HVAC ThermostatsCarrier HVAC ThermostatsHoneywell HVAC ThermostatsLennox HVAC ThermostatsMitsubishi HVAC ThermostatsNest HVAC ThermostatsRobertshaw HVAC ThermostatsTrane HVAC ThermostatsWhite rogers HVAC Thermostatsplus many more brands.