User manual HONEYWELL MAGICSTAT 28

[. . . ] Registered Trademark Copyright © 2001 Honeywell · All Rights Reserved 69- 0654- 5 Fig. 1 MERCURY SWITCH Recycling thermostat If you are removing an old thermostat that contains mercury in a sealed tube (Fig. Contact your local waste management authority for instructions regarding recycling and the proper disposal of the old thermostat. M3701 Installation Verify that you have the right thermostat Make sure that the CT3300 is the right thermostat for your heating/cooling system. Read the compatibility chart below to determine which system you have. [. . . ] Place the wires where they will not interfere with the operation of the new thermostat. Continue with the installation as instructed on page 4 at step 2e. Six or more wires If your old thermostat has six or more wires (excluding clock wires attached to the C or C1 terminals), your heating/cooling system is most likely a variation of a heat pump or multistage system. Your 3300 thermostat will NOT work with such systems and should be returned to the place of purchase. See the compatibility table on page 2 for information about which programmable thermostat WILL work with your system. Three thermostat wires If you have three wires for heating only and can operate the fan using the old thermostat's fan switch, the 3300 thermostat will work with your system. If you have a three-wire heating-only system and cannot operate the fan using the old thermostat's fan switch, the 3300 thermostat will probably NOT work with your system. Contact your heating contractor for installation assistance. Wires that are not connected to the old thermostat If there are extra wires that do not connect to your old thermostat, do not label them. Tape off the wires with electrical tape and place them where they will not interfere with the operation of the new thermostat. Continue the installation procedure on page 4, step 2e. 69-0654-5 INSTALLATION 9 Five wires connected to the old thermostat Your new thermostat has a factory-installed metal jumper between the R and Rc terminals (Fig. Remove the jumper before wiring the R and Rc terminals. JUMPER (FACTORYINSTALLED). 15 Old thermostat terminals that do not match new thermostat terminals Use the table below to wire the new thermostat. Old thermostat Connect to new terminal thermostat terminal Description R, RH, 4, V Rc, R W, W1, H Y, Y1, M G, F O B C, X, B W2, H2 Y2 R* Rc* W Y G Do not continue installation Do not connect Do not continue installation. 24 i. Set the Saturday and Sunday WAKE temperature by pressing or (Fig. until the desired temperature is displayed j. Press again to display a blank schedule for the SLEEP program period and repeat steps h. Write in the times and temperatures that you want to program for your cooling schedule. Cooling Schedule Suggested Settings Weekday (Mon­Fri) Weekend (Sat­Sun) Program period Time Temp Time Temp Time Temp WAKE 6:00 AM LEAVE 8:00 AM 85°F (29. 5°C) RETURN 6:00 PM 78°F (25. 5°C) SLEEP 10:00 PM 82°F (28°C) 78°F (25. 5°C) 69-0654-5 PROGRAMMING 15 b. Press until the setting is 10°F (6°C) above room temperature (Fig. Your heating system should start and the fan should run after a short delay. 25 c. Verify that your cooling system works IMPORTANT: To avoid damaging the compressor in the air conditioner, do not operate the cooling system when the temperature outdoors is below 50°F (10°C). Press until the setting is 10°F (6°C) below room temperature (Fig. Note: When the cooling setting is changed, the thermostat may delay up to 5 minutes before turning on the air conditioner. 26 16 PROGRAMMING 69-0654-5 f. Press until the setting is 10°F (6°C) above room temperature. The cooling system and fan should be off. g. Operation Change the clock for Daylight/Standard Time a. [. . . ] If the temperature setting is higher than the current room temperature and the SYSTEM ON arrow is displayed, the thermostat is operating correctly. Contact a heating contractor for assistance. Temperature change occurs at the wrong times Heating will not come on · · · · · · · 22 FREQUENTLY ASKED QUESTIONS 69-0654-5 If. . . · · · · · · Check that the System switch is set to COOL. Check the system fuse or circuit breaker and replace or reset if necessary. [. . . ]