521_U 01/14 Programmable Thermostat 521 Zoning Replaces: New User Manual A Watts Water Technologies Company 1 of 8 © 2014 521_U - 01/14
This brochure will provide you with the information you need to benefit the most from your tekmar Thermostat. Please visit www.tekmarControls.com for more detailed information on this or any other tekmar product. User Interface SuMoTuWeThFrSa F P F MIN MAX MODE Heat Cool Off Floor Room Floor Heat On Cool On Display Symbols This thermostat will display symbols on its screen in order to indicate what mode it is in, what temperature it is operating at, or what equipment it is trying to turn on.
Mode Button Operation Press the Mode button to select Heat, Cool, or Off operation. The thermostat must be configured for heat/cool/fan operation in order for the cooling operation to be available. Heating Operation Heating is available when the Mode is set to Heat. To change the heat temperature setting, push the or button to select a preferred temperature setting for the current schedule time period. The Heat On symbol is shown on the display when the thermostat is heating.
90°F (32°C) Feels hot to the touch Suggested maximum for all floor types other than wood. 80 to 85°F (26 to 30°C) Feels warm to the touch Bathrooms and kitchens. Suggested maximum for wood floors. 70°F (21°C) Feels cool to the touch Rooms with large windows preventing under heating in the evening. 40 to 45°F (5 to 7°C) Feels cold to the touch Freeze protection for garages. Cooling Operation Cooling is available when the Mode is set to Cool.
Time Clock The thermostat includes a time clock that is automatically visible in the Home menu when a programmable schedule is used. If the schedule is not used, the user has the option to select whether the time is shown in the Home menu. During a loss of power, the thermostat continues to keep the correct time and date for at least 4 hours. If the power is off for more than 4 hours, the user will need to set the time.
Navigation Press and hold down both the Menus. and buttons together to enter the Programming PRGM MENU PRGM MENU MENU PRGM MENU PRGM PRGM MENU While in the Programming Menus, the MODE button changes function to become the MENU button. Press the MENU button to change from one menu to the next. While in the Programming Menus, the HOLD button changes function to become the PRGM (program) button. Press the PRGM button to enter the menu.
Set Temp Menu SET HEAT ROOM Set the room heating temperature for the programmable schedule event. SET HEAT ROOM Set the room heating temperature for the programmable schedule event. SET COOL ROOM Set the room cooling temperature for the programmable schedule event. SET COOL ROOM Set the room cooling temperature for the programmable schedule event. SET FLOOR Set the floor heating temperature for the programmable schedule event. SET FLOOR Set the floor heating temperature for the programmable schedule event.
Schedule Menu (continued) SCHEDULE Select if the thermostat should change the temperature automatically using a programmable schedule. EVENT PER DAY Select either two or four scheduled events per day. 24 HOUR / 7 DAY Select either a 24 hour or a 7 day repeating schedule. OPTIMUM START Select whether or not to use optimum start. The thermostat learns the heat up rate of the room and starts heating in advance of Event 1 or Event 3.
