Honeywell Thermostat T4039B User's Manual
Contents
1. E T4039 THERMOSTATS CONTROL LINE VOLTAGE VALVES H on evwell OF A FAN COIL UNIT IN COOLING MANUAL CHANGEOVER HEATING COOLING OR AUTOMATIC CHANGEOVER HEAT ING COOLING SYSTEMS ONE OR TWO VALVES MAY CONTROLLED DIRECTLY BY THE THERMOSTAT THE FAN T4039A M LINE VOLTAGE SWITCH WHERE APPLICABLE CONTROLS AIR CIRCULA COO LING AND HEATING QT4039A QT4039D 4039 QT4039J T4039B T4039E T4039H Q T4039K COO LI N G TH E RMOSTATS T4039C T4039F 0 4039 D T4039L T4039M e two or three speed manual fan control available e Positive deadspot separates heating cooling circuits in automatic models Remote changeover switch is required to separate circuits in manual changeover heating cooling models e Scale range is approximately 55 to 95 F in 10 F incre ments from 75 F midpoint Scale is marked COOL WARM Cooling circuit breaks in FAN OFF position to reduce con densation problems in the fan coll unit e Color coded leadwires All models may be mounted on standard vertical outlet boxes Models with manual switching may be mounted on 4 in square junction boxes or two ganged outlet boxes Adjustable range stops limit temperature adjustment or lock at selected set point Models avallable with separate power source for fan and thermostat SPECIFICATIONS MODELS ELECTRICAL RATINGS Thermostat valve load Manual System Swit2. a standard vertical outlet from 75 F 24 C midpoint box if local codes permit S H Form Number 63 1092 1 89 Honeywell Inc 1989 gt T4039A D Honeywell 3110 T4039K 791 Fig 1 MOUNTING DIMENSIONS IN in mm IN BRACKETS OF T4039 MODELS WITH MANUAL SWITCHING Honeywell T40398 M COOL amp FAN OFF HIGH LOW 1 Honeywell T4039E J COOL amp FAN OFF ON T4039F L a Fig 2 MANUAL SWITCHING LAYOUT ON T4039 THERMOSTATS NO MANUAL SWITCHING T4039G PRINTED IN U S A
3. ching Mode Normal A Inrush A Cooling Only T4039A 120 Vac og _ 1 Cooling Only Ofi Hi T4039B 240 Vac o 0 50 Med L 277 Vac 043 Heating Cooling8 NW T4039C Fan Switch Heating Cooling T4039D c T Heating Cooling Off H Lob T4039E ront MS Heating Cooling OfFHi T4039F 120 Vac 55 3 Med Lob 2Vac 165 Automatic Heating Cooling T4039G 277 Vac 24 M4 Automatic Heating Cooling _ T4039H 10A Resistive at 125 Vac Automatic Heating Cooling Off Hi Lob T4039J 5A Resistive at 240 Vac Automatic Heating Cooling Off Hi Lo T4039K 4 2A Resistive at 277 Vac Automatic Heating Cooling Off Hi 14039 Mod Lob DIFFERENTIAL Approximately 2 F 1 C at midscale On automatic heating cooling models the differential from make of the Automatic Hoating Cooilng contact to of opposite contact is 7 F 4 maximum with positive deadspot a Remote changeover switch required DIMENSIONS See Fig 1 b OFF breaks cooling circuit and fan circuit OFF breaks both heating and cooling circuits and fan circuits FINISH Silver bronze See Fig 2 for arrangements of switches MOUNTING Models without manual switching mount on standard vertical outlet boxes Models with manual switching mount on 4 TEMPERATURE SETTING RANGE Approximately 55 F to 95 F in square junction boxes or two ganged outlet boxes Manual 13 C to 35 C marked COOL WARM in 10 F 6 C increments switching models may also mount on
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