0 W7620 Base Controller provides: -four relay outputs -network communication -T7660 Space Temperature Sensor inputs 0 W7621 Expansion Input Point Boards provide additional input point expansion on one board of up to: -two resistive inputs -two digital inputs - two voltage inputs (one dry contact, one extended 24 Vac input) • W7622 Expansion Output Point Boards provide additional output point expansion on one board of up to: -three analog outputs -three digital outputs 0 T7660 Space Temperature S

.All Rights Reserved 69-1481-1 T8411R ELECTRONIC HEAT PUMP THERMOSTAT 5 FEET [1.5 METERS] YES NO NO NO M11338 T8411R ELECTRONIC HEAT PUMP THERMOSTAT 5 FEET [1.5 METERS] YES NO NO NO M11338 Fig. 1. Typical location of thermostat. The shape of the terminals permits insertion of straight or WALL WALL ANCHORS (2) WALLPLATE WHEN USING WALL ANCHORS, DRILL 3/16 INCH MOUNTING SCREWS (2) 1 1 HOLES FOR DRYWALL, 7/32 INCH HOLES FOR PLASTER OR WOOD. M12202A Fig. 2. Mounting wallplate to wall. Wiring IMPORTA

¦ Can be programmed in hand (with batteries installed) or on the wall to provide up to four temperature periods per day. ¦ Large digital clock (liquid crystal display) indicates continuous time-of-day, day-of-week, current period and room temperature. ¦ Adaptive Intelligent Recovery™ brings room temperature to programmed temperature at programmed time, maximizing comfort and energy savings. ¦ Temperature control program maintains temperature within 1° F of setpoint. ¦ Temporary program override

Table 1. Description of T8511 Thermostat. Model Application Powering Method Changeover System Selection Fan Selection T8511G Zone 1 on MABS II or TotalZone® system Requires common wire to power supply Automatic or Manual Em Heat-Heat-Off- Cool-Auto On-Auto RECYCLING NOTICE If this control is replacing a control that contains mercury in a sealed tube, do notplace your old control in the trash. Contact your local waste management authority for instructions regarding recycling and the proper dispos

12-93 • Form Number 69-0816 Toll-free Customer Assistance Toll-free Customer Assistance 7:00 a.m.-5:30 p.m. Central Time. Before you call, please have the following information available—thermostat model number and date code, kind of heating/cooling system (i.e., hot water, warm air, oil, gas, etc.), number of wires connected to the thermostat. NOTICE This equipment is a Class B digital apparatus, which complies with Canadian Radio Interference Regulations, CRC c. 1374. 11N Your new thermostat p