Honeywell T4039A Manuale Utente

60-2241—8

T4039 Thermostats Control Line Voltage Valves of

a fan coil unit in cooling, manual changeover heat-
ing-cooling, or automatic changeover heating-cool-
ing systems. One or two valves may be controlled
directly by the thermostat. The fan switch (where
applicable) controls air circulation.

T4039A,B,D-M,S,V

Line Voltage Cooling and

Heating-Cooling Thermostats

J. H. • Rev. 10-92 • ©Honeywell Inc. 1992 • Form Number 60-2241—8

■ Color-coded leadwires.

■ All models can be mounted on standard vertical

outlet boxes. Models with manual switching can be
mounted on 4 in. square junction boxes or 2-
ganged outlet boxes.

■ Adjustable range stops limit temperature adjust-

ment or lock at selected setpoint.

■ Models available with separate power source for

fan and thermostat.

■ 1-, 2-, or 3-speed manual fan control available.

■ Positive deadspot separates heating-cooling circuits

in automatic models. Remote changeover switch is
required to separate circuits in manual changeover
heating-cooling models.

■ Scale range is approximately 55

F to 95

F [13

C] in 10

F [6

C] increments from 75

F [24

C] midpoint. Scale is marked COOL-WARM.

■ Cooling circuit breaks in FAN-OFF position to re-

duce condensation problems in the fan coil unit.

CONTENTS

Specifications ................................................. 2
Ordering Information ..................................... 2
Installation ..................................................... 5
Operation ....................................................... 8
Checkout ......................................................... 8