Honeywell CT53A - Manual

Models
CT50A/CT53A/CT51A
• Easy to install & use
• Quiet switching
CT51A Heating & Cooling
• For central gas or oil heating,
electric furnaces & central electric cooling
• Use in single transformer systems only
• 4 wires
CT50A Heat Only
• For central gas or oil heating
• 2 wires
CT53A Heat Only
• For 750 millivolt
heating systems
• 2 wires
Standard Manual Thermostats