Robertshaw Non Programmable Thermostat with Auto Change over from Heating to Cooling 2 Heating / 2 Cooling Stages.
The 9555 is compatible with all standard 24 Volt AC multi-stage systems, up to two stage heat and two stage cool. Three LEDs indicate heating, cooling or auxiliary heating operation.
• Compatible with all standard 24 VAC multi-stage heating and cooling systems
• O & B Terminals
• Adjustable 1st and 2nd stage differentials
• Worry-Free Memory Storage
• Multi-Colored LED System Indicators
• Large Back Lit Display
Features and Benefits
Automatically adjusts between heating and cooling cycles to maintain optimal comfort.
Huge Back Lit Display
Allows for easy viewing in dark hallways or at night.
Automatic Compressor Short Cycle Protection
A system safeguard. Reduces wear and tear of HVAC equipment.
Lighted System Status Indicator.
Enables you to check system status at a glance.
Worry-Free Memory Storage
Even during power outages, the thermostat maintains setpoint and programmed parameters.
Adjustable 1st and 2nd Stage Temperature Differential
Maintains optimal customer comfort.
Toll-Free Technical Service number printed right on the thermostat provides immediate assistance.
O & B Terminals
Greater system flexibility, zoning compatible.
Zone System Compatible
In zoning applications where temperature is precisely controlled, thermostat acts as a sensor within the system.
Quick Wire Terminal Block
Fast and easy installation. Uses sturdy wire clamps
• no wrap-around of screws.
Wiring Terminal Designations
C, R, Y2, Y1, W1, G, W2, O, B.