Honeywell T4039 Catalog Page

Fan Coil Thermostats

T4039 Fan Coil Thermostat

Dimensions, Approximate: 4 5/8 in. high x 4 15/16 in. wide x 1 5/16 in.

deep (118 mm high x 125 mm wide x 33 mm deep)

Mounting: 4 in. square outlet box or 2-ganged outlet box
Electrical Ratings: Fan Switch: 120 Vac: 5.5 AFL, 33.0 ALR; 240 Vac:

2.75 AFL, 16.5 ALR; 277 Vac: 2.4 AFL, 14.4 ALR
Thermostat (Valve load): 120 Vac: 0.32 AFL, 1.0 A ALR; 240 Vac:

0.16 AFL, 0.50 ALR; 277 Vac: 0.14 AFL, 0.43 ALR

Voltag e: 120 to 277 Vac
Frequency: 50 Hz; 60 Hz
Operating Humidity Range (% RH): 5 to 95% RH, non-condensing
Display: No
Includes: Allen wrench for cover and mounting screws
Approvals
Canadian Standards Association: Certified

Control line voltage valves of a fan coil unit in cooling, manual or
automatic changeover heating-cooling systems.

• Directly operate one or two valves

• Positive deadband separates heating and
cooling circuits in automatic models

• Includes allen wrench for cover and mounting screw

Underwriters Laboratories, Inc: File No. E34436, Vol 2, dated 3-19-73;

Guide No. XAPX

Accessories:

TG511A1000-Medium Universal Thermostat Guard with clear cover and

base, and opaque wallplate Fits T822, T834, T8034, T841, T874 with
Q674, WR1F46, and others

TG511D1004-Medium Universal Thermostat Guard with Beige painted

steel cover, opaque ring base and wallplate Fits T822, T834, T8034,
T841, T874 with Q674, and others

TG512A1009-Large Universal Thermostat Guard with clear cover and

base, and opaque wallplate Fits T8082, T8085, T8600, and most
electronic thermostats

TG512D1003-Large Universal Thermostat Guard with Beige painted

steel cover, opaque ring base and wallplate Fits T8082, T8085, T8600,
and most electronic thermostats

Commercial

Setting Temperature
Range Differential Temperature Switch Position

Product Number Application

T4039B1008/U Fan coil,

T4039J1026/U 4 pipe fan

T4039M1004/U 55 F to 95 F,

T4039M1103/U 55 F to 95 F,

T4039S1016/U 4 pipe fan

T4039S1040/U 55 F to 95 F,

cooling only

coil,
automatic
heat-cool
changeover

coil, manual
heat-cool
changeover

55 F to 95 F,
marked
COOL­WARM

55 F to 95 F,
marked
COOL­WARM

marked
COOL­WARM

marked
COOL­WARM

55 F to 95 F,
marked
COOL­WARM

marked
COOL­WARM

13 C to 35 C,
marked
COOL­WARM

13 C to 35 C,
marked
COOL­WARM

13 C to 35 C,
marked
COOL­WARM

13 C to 35 C,
marked
COOL­WARM

13 C to 35 C,
marked
COOL­WARM

13 C to 35 C,
marked
COOL­WARM

Approximately
2 F at midscale

The differential
from make of
one contact to
make of the
opposite
contact is 7 F
maximum with
a positive
deadspot

Approximately
1 C at midscale

The differential
from make of
one contact to
make of the
opposite
contact is 4 C
maximum with
a positive
deadspot

Changeover Color(F) (C) (F) (C) System Fan

ON-OFF HI-MED-LO — Tan

OFF-HI-LO,
Off breaks
cooling and
fan circuits

ON-OFF HI-MED-LO Automatic Tan

ON-OFF HI-MED-LO Automatic Premier

HEAT-OFF­COOL

HEAT-OFF­COOL

— Remote changeover

HI-MED-LO Manual Tan

HI-MED-LO Manual Tan

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

Ta n

White®

Components

70-6910 487