Thermostatic Control
The T104F Thermostatic Control is used with a V110
Valve Body to control radiators, convectors, baseboard
heating units, or other heating units with standard capacity
requirements. The control is self-powered and requires no
electrical connection. The T100A includes a setpoint dial
and valve actuator, connected by a capillary tube to a sensor.
The T104F Control attaches to the valve body by threaded
connections and may be mounted at any angle. Install the
remote sensor beneath the heating coils in the cold air return, or on a nearby wall where the air flow is not restricted.
The setpoint dial has reference marks (1-6). The control
has a low limit of 43°F (6°C) when the dial is turned fully
clockwise to the frost protection mark*. The red button
indicates the 68°F (20°C) setpoint limit. Higher settings may
be made by holding in the button while turning. The thermostatic sensor is protected by a safety spring against temperatures to 125°F (52°C).
T104F
3
2
M9730
Specifications
MATERIALS OF CONSTRUCTION:
Body: Industrial grade plastics with low thermal
conductivity.
Fastening Ring: Plated brass.
Internal Parts: Brass thermostat capsule, other metals.
TEMPERATURE RANGE: 43° to 79°F (6° to 26 °C).
MAX. SENSOR TEMPERATURE: 125°F (52°C).
MAX. OVERALL DIMENSIONS: 2-1/8 in. (54 mm) wide,
3-5/16 in. (84 mm) long. See Fig. 1.
CAPILLARY LENGTH: 6 ft. 8 in. (2 m).
TEMPERATURE SETTINGS:
These are the setpoint temperatures, which correspond
to the setpoint dial reference marks, under ideal conditions.
Factors affecting the temperature at the sensor vary for each
installation. It may be necessary to adjust the setpoint
higher or lower to obtain the desired space temperature.
Temperature 0 *123456
°F Off 43 46 54 61 68 73 79
°C Off 6 8 12 16 20 23 26
Fig. 1—T104F dimensions in in. (mm).
2 1/8 (54)
M9731
AVAILABLE VALVE BODIES:
See Fig. 2.
3 5/16
(84)
MAX.
1 62-3047
C. H. • 12-94 • ©Honeywell Inc. 1994 • Form Number 62-3047
Fig. 2—V110 Valve Bodies.
VALVE BODIES
V110D
V110E
V110F
M9735
Fig. 3—T104A,B,C,V Thermostatic Controls.
4
5
3
3
2
2
1
OTHER AVAILABLE T100 THERMOSTATIC
CONTROLS (See Fig. 3):
T104A Control with internal sensor.
T104B Control with remote sensor/setpoint.
T104C Control with remote sensor and remote setpoint.
T104V Control with internal sensor and tamper-resistant
setpoint and mounting.
ACCESSORY
A104F1007 Limit Pins.
G111B1053 Bulb guard for protection of sensor when
mounted on the wall.
4
5
3
2
1
T104B T104CT104A T104V
Installation
IMPORTANT: The T104F can be mounted inside an enclo-
sure if the sensor is located a minimum of 3 in. (76 mm)
beneath the heating coils in the cold air return. Coil
excess capillary tubing beneath and away from the
62-3047 2
M9736
heating coils. Take care not to break, kink or sharply
bend the capillary tubing.
When mounting the T104F, make sure the bosses on
the T104F base fit securely into the valve body grooves.
Firmly hand tighten the knurled ring. Improper mounting can cause overheating. Refer to Fig. 4 for typical
installations.