Honeywell T104F Users Manual 62 3047 Thermostatic Control

T104F 62-3047

2015-01-23

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162-3047
C. H. • 12-94 • ©Honeywell Inc. 1994 • Form Number 62-3047
T104F
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 re-
turn, 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 thermo-
static sensor is protected by a safety spring against tempera-
tures to 125°F (52°C).
M9730
2
3
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.
Fig. 1—T104F dimensions in in. (mm).
AVAILABLE VALVE BODIES:
See Fig. 2.
Temperature 0 *123456
°F Off 43 46 54 61 68 73 79
°C Off 6 8 12 16 20 23 26
3 5/16
(84)
MAX.
2 1/8 (54)
M9731
62-3047 2
Fig. 2—V110 Valve Bodies. 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.
M9735
V110D
VALVE BODIES
V110E
V110F
Fig. 3—T104A,B,C,V Thermostatic Controls.
T104B T104CT104A T104V M9736
1
2
3
4
5
1
2
3
4
5
2
3
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
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 mount-
ing can cause overheating. Refer to Fig. 4 for typical
installations.
362-3047
Fig. 4—Typical installations.
M9734
18 INCH
MINIMUM
Settings and Calibration
The T104F Control includes an adjustable range limit-
ing pin (order additional pins separately). The pin is fac-
tory-set to limit the low range of the control to the frost
protection (*) setting (see Fig. 5). The pin can be moved to
a different low or high limit setting and lock point, or it can
be removed. Use a second pin if both low and high limit
settings are desired.
Setting the Limit
To set a limit different from the factory setting, proceed
as follows:
1. Determine the desired temperature range limit or lock-
ing temperature. Select the appropriate number on the ad-
justment knob to match the desired temperature setting. See
Fig. 5.
Fig. 5—Temperature settings.
M9729
SCALE MARKING
ADJUSTMENT RANGE SETTING
OFF
OFF
PIN
POS.
TEMP.
RANGE
°F
TEMP.
RANGE
°C
6
01
1PIN REQUIRED.
FACTORY SETTING.
*
*
23456
43
8
46
12
54
16
61
20
68
23
73
26
79
6 - 26
16 - 26
OFF - 26
20
22
0 - 20
6 - 20
0 - 23
6 - 23
43 - 79
61 - 79
OFF - 79
68
72
0 - 68
43 - 68
0 - 73
43 - 73
3
NONE
4a
4b
4b
4b + *
5 + *
5
°C
°F 2
2
1
1
62-3047 4
M9715
ADJUSTMENT
KNOB END
CAP
ACTUATOR
2
3
2. Lift the end cap off the adjustment knob. See Fig. 6.
Fig. 6—Lift the end cap off the adjustment knob.
3. Remove the adjustment knob from the actuator as
follows:
a. Turn the adjustment knob so the desired knob setting
is aligned with the white line on the actuator base.
b. Pull the knob off the head or use a screwdriver inserted
into one of the slots to pry off the knob. See Fig. 7.
Fig. 7—Remove the knob from the actuator.
4. Push the limit pin up and slide it into the slot that
Locking the Control at a Single Temperature
1. Determine the desired locking temperature. Select the
appropriate number on the adjustment knob to match the
desired temperature setting. See Fig. 5.
2. Lift the end cap off the adjustment knob. See Fig. 6.
3. Remove the adjustment knob from the actuator as
follows:
a. Turn the adjustment knob so the desired knob setting
is aligned with the white line on the actuator base.
b. Pull the knob off the head or use a screwdriver inserted
in one of the slots to pry off the knob. See Fig. 7.
4. Insert the pin in slot 4a for 68°F (20°C) or slot 4b for
72 °F (22°C).
Fig. 8—Insert the pin in the slot to set the limit
range.
5. To replace the adjustment knob, align the knob setting
from step 3a with the white line on the base and push the
knob toward the base. Make sure the three arm clips snap in
place at the top of the adjustment knob.
6. Replace the end cap.
Recalibrate T104F Control
1. Lift the end cap off the adjustment knob. See Fig. 6.
2. Pull the knob off the head or use a screwdriver inserted
in one of the slots to pry off the knob. See Fig. 7.
3. Turn the actuator head clockwise until the head stops
(Fig. 7). The calibration indent should be aligned approxi-
mately with the white line on the base when the head stops.
If the indent is 180 degrees from the white mark, unscrew the
head completely from the base and rethread the head to the
base so that it is aligned with the white mark. Turn the act-
uator head clockwise until the head stops. Complete removal
of the head from the base is required only if the actuator was
previously dismantled.
NOTE: The distance between the actuator head and the static
portion of the control should be approximately 3/8 in.
(9 mm).
4. Turn the actuator head counterclockwise approxi-
mately one turn until the calibration indent on the head aligns
with the white line on the base. For the 72 °F (22°C) single
temperature setting, align the indent with the center of the
adjustable limiting pin.
5. Replace the adjustment knob by aligning the red
button with the white line on the base and pushing the knob
toward the base. For the 72°F (22°C) single temperature
setting, align the red button with the center of the adjustable
limiting pin. Make sure the three arm clips snap in place at
the top of the adjustment knob.
6. Replace the end cap.
corresponds with the desired temperature limit. If the lower
limit remains at the frost protection mark (*), insert an
additional pin in the slot that corresponds with the second
limit.
Example 1:
If the desired temperature range is 43° to 73°F (6° to
23°C), leave the pin in the slot marked * and add one pin in
slot 5.
Example 2:
If the desired temperature range is OFF to 68°F (23 °C),
move the pin to slot 5. No additional pin is required.
5. To replace the adjustment knob, realign the knob
setting in step 3a with the white line on the base and push the
knob toward the base. Make sure the three arm clips snap into
place at the top of the adjustment knob. If the actuator was
turned with the adjustment knob off, recalibrate the control
according to the instructions in Recalibrate T104F Control
section.
6. Replace the end cap.
M9714
SCREWDRIVER SLOT (2)
WHITE LINE
RED
BUTTON
CALIBRATION
INDENT
ARM CLIP (3)
ACTUATOR HEAD
BASE
LIMIT PIN
LIMIT PIN REMOVED
WHITE LINE
FIXED STOP
PIN
POSITION
(SEE FIG. 5)
34a4b5
*
M9723
562-3047
Troubleshooting
Sympton Possible Cause Solution
All sections of
the radiator are
not heating.
1. Many radiators are over-sized and all
sections are not required to heat up to
maintain the set room temperature.
1. System is operating properly.
Underheating. 1. Sensor is in the wrong location. 1. Change the sensor location or change the control
type. See installation instructions.
2. Excess capillary tube is coiled above or
too near the heat source. 2. Coil excess capillary tube below or away from the
heat source.
3. Flow through the valve is in the wrong
direction. 3. Check the arrow on the valve body. It should be in
the direction of the flow. Change the valve direction
or flow direction.
4. Inadequate system temperature or
pressure. 4. Check the operating and limiting controls on the
boiler. Check the circulating pump and isolating
valves.
5. Steam traps are defective. 5. Repair or replace the traps.
6. Air lock in the hot water system. 6. Open the valve fully to allow air to pass. Install
vents.
7. Scale or debris is blocking flow. 7. Flush the system. Do not use oil base additives.
Clean strainer insert in steam applications.
8. Heating cabinet dampers are closed. 8. Open or remove the dampers.
Overheating. 1. Sensor is in the wrong location. 1. Change the sensor location or change the control
type.
2. Control is not properly installed. 2. Set the bosses in the grooves and tighten the
knurled ring to the valve body.
3. Capillary tube is broken, kinked, or
bent sharply. 3. Replace the control.
4. Dirt or scale is under the seat,
preventing tight shutoff. 4. Remove the control from the valve body, allowing
the valve to open fully and flush away scale and
debris. Reinstall the control and turn fully clock-
wise. If the valve does not fully close, remove con-
trol and cartridge using a cartridge changer tool or
service socket (isolate valve from system if not
using changer tool). Inspect and clean valve seat
area and disc. Always use a strainer insert in steam
applications.
5. Flow through the valve is in the wrong
direction, damaging the valve seat. 5. Check the arrow on the valve body. It should be in
the direction of the flow. Change the valve direction
or flow direction. Remove the valve cartridge and
inspect for damage to the seat disk.
6. Steam traps are defective. 6. Repair or replace the traps.
7. Excessive differential pressure is
forcing the valve open (hot water
systems).
7. Install a differential pressure regulator (D146A) to
maintain less than 117 kPa (17 psi) differential
between supply and return pipes.
Chattering or
knocking. 1. Flow through the valve is in the wrong
direction. 1. Check the arrow on the valve body. It should be in
the direction of the flow. Change the valve direction
or flow direction.
2. Vacuum in the system. 2. For steam—check traps and vents. For hot water—
check expansion tank operation and location.
3. Excessive differential pressure. 3. Install a differential pressure regulator (D146A) to
maintain less than 117 kPa (17 psi) differential
between supply and return pipes.
4. Binding of piping. 4. Make sure there is adequate space for piping.
62-3047 6
QUALITY IS KEY
Honeywell Braukmann Honeywell Braukmann Helping You Control Your World
Honeywell Inc. Honeywell Limited—Honeywell Limitée
1985 Douglas Drive North 740 Ellesmere Road
Golden Valley, MN 55422 Scarborough, Ontario
M1P 2V9
Printed in Germany www.honeywell.ca/braukmann

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