Honeywell CT33 Owner's Manual - Page 5

CT30/CT33 Low-voltage Thermostat Set adjustment lever (CT30 only) 1 Separate cover from thermostat, and remove the plastic insert. 2 Use a pencil to move the adjustment lever to the proper setting for your system (see table below). Your system Setting Gas or oil furnace (less than 90% efficiency) 0.4 Electric furnace (any type) 0.3 High efficiency furnace (more than 90% efficiency) 0.8 Hot water system 0.8 Gas/oil steam or gravity system 1.2 Finish installation Thermostat (shown with optional cover plate) Cover 5 1 Align the 3 tabs on the cover with slots on the thermostat, then push gently until the cover snaps into place. 2 Restore electrical power at the heating/cooling system, or at the fuse/ circuit-breaker panel.