Rheem 500 Series Installation Guide - Page 14

Thermostat Setup 1 2 1 2 Select UV lamp maintenance reminder. Scrolling message will show "UV LAMP MAINTENANCE". Default is OFF. It can be changed to a setting from 25 to 1975 days in increments of 25 days to select the amount of time for the reminder. Setting of 350 days is an annual reminder. Based on this setting, the scrolling message area will show "CHANGE UV LAMP" to indicate maintenance is required. Select humidifier pad maintenance reminder. Scrolling message will show "HUMIDIFIER PAD MAINTENANCE". Default is OFF. It can be changed to a setting from 25 to 1975 hours in increments of 25 hours to select the amount of time for the reminder. Setting of 100 hours is typically 6 months of run time. Based on this setting, the scrolling message area will show "CHANGE HUMIDIFIER PAD" to indicate maintenance is required. Advanced Installer Configuration Menu Thermostat User Menus Status Parameter Configuration Indications Comments HP - Heat Pump Indication in center of screen shows the DF - Dual Fuel configuration of the thermostat based on the GH - Gas Heat equipment connected. ES - Electric System The type of system with the number of stages AC - Air Conditioner will be displayed above the or . Additional FN - Fan system types and stages can be viewed by EH - Electric Heat pressing or . -- - Furnace and Air Conditioner Setup Parameter Outdoor Temperature Display Heat Pump Disable (HP) Dual Fuel Disable (DF) Air Handler Lockout Temperature (AH) _ Test Reset System Options Comments bL, On, OFF bL - (7 Days Programming only) Factory default is (bLink), alternates time display between time and outdoor temperature. On - (0 Days Programming default) The outdoor temperature is displayed continuously on the time display. OFF - Only Time is displayed. OFF, 5° to 50°F Available only for air handler with heat pump systems. Disables heat pump and turns on electric heat below the selected outdoor temperature. OFF, 5° to 50°F Available only for furnace with heat pump systems (dual fuel systems). Switches from heat pump to fossil fuel equipment (furnace) below the selected temperature. OFF, Heat Pump Available only for air handler with heat pump Disable setting to systems. Disables electric heat above the selected 95°F outdoor temperature. OFF defaults to 50°F. No, Yes No, Yes Steps the selected equipment through its sequential mode of operation. This will reset ALL of the communicating system components to their factory set values.