Schneider Electric TC-4100 Series, TC-4200 Series Data Sheet

APPLICATION

N.O.

N.C.

Temp. Drop

N.O. makes ON temperature drop

Low (N.O.)

Low (N.C.)

1st stage cool

Temp. Drop

Common

High (N.O.)

1st stage Heat

High (N.C.)

Temp. Drop

Typical Two Stage

Typical Single Stage

Common

Low

High

Typical

Single Bulb

Typical

Dual Bulb

For on-off control of media temperature in ducts, tanks, liqui d lines, etc.

SPECIFICATIONS

Setpoint Dial Range: Dial plate is marked as °F on one

side and °C on the other. See Table-2 for specific ranges.

Sensing Element: Liquid-filled copper. Differential: See Table-2. Dual Bulb Units: One bulb senses the controlled media;

the second bulb senses the outside air temperature. The temperature of the controlled media increases as outside air temperature decreases.

Ambient Temperature Limits:

Case,

Shipping -40 to 160°F (-40 to 71°C). Operating -40 to 150°F (-40 to 65°C): except return

air bulb unit, -40 to 140°F (-40 to 60°C).

Bulb, See Table-2. Electrical Switch: Snap action SPDT, one per stage. Ratings, See Table-1. Connections: Coded screw terminals. Cover: All metal with 1/2" to 3/4" conduit openings. Case Locations: NEMA Type 1 indoor only. Mounting: Case can be mounted in any position. See

ACCESSORIES for bulb mounting kits (order separately).

Dimensions:

Case, 4-5/8" high x 2-1/4" wide x 2" deep (117 mm x 57

mm x 51 mm)

Element and Capillary, See Table-2.

ACCESSORIES

AT-201 Copper bulb well requires AT-209 AT-203 Stainless steel bulb well requires AT-209 AT-206 Copper bulb well AT-208 Duct mounting kit AT-209 Bulb mounting kit AT-210 Concealed adjustment plate AT-211 Outside bulb shield

Table-1 Maximum Electrical Rating

(All units except TC-4115*)

TC-4100 Series, TC-4200

Series

Bulb Thermostats & Return Air Thermostats

General Instructions

Typical

Return Air Bulb

Switch Rating (50/60

Full Load Amps 9.8 9.8 8.0 Locked Rotor Amps 58.8 58.8 48.0 Pilot Duty VA 60 360 360 Non-Inductive Amps (Resistive) Single Stage 22 22 22

Two Stage 16 16 8.0

* TC-4115 for TAC System 8000 and applications requiring le ss than one (1)

amp. Electrical Rating: 1.0 amp at 24 Vac; 0.25 amp at 24 Vdc.

Hz)

24V 120V 240V

Figure-1 Switch Action and Terminal Identification.

Table-2 Specifications.

Part

Number

Type

TC-4111

TC-4111-020 20 (6)

TC-4112

TC-4115

TC-4121

Single Stage

Single Bulb

TC-4122

TC-4123

Setpoint

Adjustment

Range °F (°C)

-40 to 120 (-40 to 49)

100 to 260 (38 to 127)

-40 to 120

(-40 to 49) 100 to 260

(38 to 127) 190 to 350

(88 to 176)

TC-4151

Single Stage

TC-4152 1:1

Dual Bulb

Single Stage

TC-4166

Return Air

Bulb TC-4211 TC-4221

TC-4222

Two Stage

Single Bulb

TC-4223

70 to 120

(21 to 49)

50 to 90

(10 to 32)

-40 to 120

(-40 to 49) 100 to 260

(38 to 127) 190 to 350

(88 to 176)

TC-4251

Two Stage

Dual Bulb

70 to 120 (21 to 49)

Dual

Bulb

Ratio

1:1-1/2

Capillary

Copper

ft. (m)

6 (1.8)

10 (3)

Armored

30 (9)

Each Bulb

None

6 (1.8)

10 (3)

Armored

30 (9)

Each Bulb

TC-4252 1:1

TC-4266

First number of reset ratio typically indicates outdoor air temperature change required to increase the setpoint by the second number.

See Electrical Rating.

For 1-1/2:1 ratio, reverse bulbs and use extra dial supplied with unit.

Return Air

Bulb

Two Stage

50 to 90

(10 to 32)

None

Dimensions

Bulb Copper

in. (mm)

Indoor Outdoor

3/8 x 4

(9.5 x 102)

3/8 x 4

(9.5 x 102)

3/8 x 4

(9.5 x 102)

2-1/2 x 2 (64 x 51)

3/8 x 4

(9.5 x 102)

3/8 x 4

(9.5 x 102)

2-1/2 x 2 (64 x 51)

3/8 x 5-1/2 (9.5 x 140)

(9.5 x 102)

Coiled

3/8 x 4

(9.5 x 102)

3/8 x 5-1/2 (9.5 x 140)

(9.5 x 102)

Coiled

3/8 x 4

Differential

°F (°C)

Factory Set 3 (2)

Adj. 3 to 16 (2 to 9)

Factory Set 3 (2)

Adj. 1-1/2 to 10 (1 to 5)

Factory Set 3 (2)

Adj. 3 to 16 (2 to 9)

Fixed 2 (1)

Per Stage Fixed 3 (2)

Between Stages Set 3 (2)

Adj. 2 to 10 (1 to 5)

Per Stage Fixed 3 (2)

Between Stages Set 3 (2)

Adj. 1.5 to 6.5 (1 to 4) Per Stage Fixed 3 (2)

Between Stages Set 3 (2)

Adj. 2 to 10 (1 to 5)

Each Stage Fixed 2 (1)

Between Stages Set 3 (2)

Adj. 1 to 5 (0.5 to 3)

Safe Bulb

Temperature

Range °F (°C)

-40 to 170 (-40 to 77)

-40 to 310

(-40 to 154)

-40 to 170 (-40 to 77)

-40 to -310

(-40 to 154)

-40 to 400

(-40 to 204)

Total of indoor and

outdoor

temperatures

must not exceed

280 (138)

-40 to 145 (-40 to 63)

-40 to 170 (-40 to 77)

-40 to 310

(-40 to 154)

-40 to 400

(-40 to 204)

Total of indoor and

outdoor

temperatures

must not exceed

280 (138)

-40 to 145 (-40 to 63)

Table-3 Ratio Selection Table.

Outdoor

Temperature

in °F

-30

-20

-10

+10

+20

+30

Ratio

1 to 1-1/2

1 to 1

1-1/2 to 1 1 to 1-1/2

1 to 1

1-1/2 to 1 1 to 1-1/2

1 to 1

1-1/2 to 1 1 to 1-1/2

1 to 1

1-1/2 to 1 1 to 1-1/2

1 to 1

1-1/2 to 1 1 to 1-1/2

1 to 1

1-1/2 to 1 1 to 1-1/2

1 to 1

1-1/2 to 1

Dial Set at 70°F Dial Set at 80°F Dial Set at 90°F

70 to 220 70 to 170 70 to 137

70 to 205 70 to 160 70 to 130

70 to 190 70 to 150 70 to 123

70 to 175 70 to 140 70 to 117

70 to 160 70 to 130 70 to 110

70 to 145 70 to 120 70 to 103

70 to 130 70 to 110

70 to 97

80 to 230 80 to 180 80 to 147

80 to 215 80 to 170 80 to 140

80 to 200 80 to 160 80 to 133

80 to 185 80 to 150 80 to 127

80 to 170 80 to 140 80 to 120

80 to 155 80 to 130 80 to 113

80 to 140 80 to 120 80 to 107

Change in Water Temperature for Different Ratios as

Outdoor Temperature Drops from 70°F to Design Temperature

90 to 240 90 to 190 90 to 157

90 to 225 90 to 180 90 to 150

90 to 210 90 to 170 90 to 143

90 to 195 90 to 160 90 to 137

90 to 180 90 to 150 90 to 130

90 to 165 90 to 140 90 to 123

90 to 150 90 to 130 90 to 117

Dial Set at

100°F

100 to 250 100 to 200 100 to 167

100 to 235 100 to 190 100 to 160

100 to 220 100 to 180 100 to 153

100 to 205 100 to 170 100 to 147

100 to 190 100 to 160 100 to 140

100 to 175 100 to 150 100 to 133

100 to 160 100 to 140 100 to 127

Dial Set at

110°F

110 to 260 110 to 210

—

110 to 245 110 to 200

—

110 to 230 110 to 190

—

110 to 215 110 to 180

—

110 to 200 110 to 170

—

110 to 185 110 to 160

—

110 to 170 100 to 150

—

Dial Set at 120°F

120 to 270 120 to 220

—

120 to 255 120 to 210

—

120 to 240 120 to 200

—

120 to 225 120 to 190

—

120 to 210 120 to 180

—

120 to 195 120 to 170

—

120 to 180 120 to 160

—

DUAL BULB SELECTION

On the dual bulb units, indoor and outdoor bulbs are determined by the ratio selected (see T able-2). Ratio refers to the outdoor air temperature change compared to the water temperature change. The dial setpoint is the water temperature setpoint when the outdoor temperature is 70°F.

T o select ratio, it is necessary to know only: (1) outdoor design temperature, (2) maximum water temperature at outdoor design temperature, and (3) desired water temperature at 70°F outdoors. Use Table-3 to determine the required ratio based on this information and set the dial per item (3).

Note: If a 1-1/2:1 ratio is selected, the extra di al sup p l ied with the unit must be used.

Example: Select ratio for an installation with a -10°F design temperature and estimated supply water temperature of 75°F at 70°F outdoors and 125°F at -10°F outdoors. From Table-3,

-10°F for 1-1/2:1 ratio, note by interpolation (70°F to 123°F with dial at 70°F, 80°F to 133°F with dial at 80°F) that water temperature varies from 75°F to 128°F as outdoor temperature drops from 70°F to -10°F.

For this application, the 1-1/2:1 ratio should be selected. The extra dial supplied with the unit would be used, and the dial set at 75°F.

PRE-INSTALLATION

Location

Locate the device allowing proper distance to the bulb location. The case can be mounted in any position. Refer to Figure-2 for case dimensions.

TC-4166 TC-4266

Only

Cut Hole in

Duct 2-1/4" W x

2-1/2" H for

Mounting in

Return Air

7/8"

13-64"

1-9/16"

Side

Bottom

TC-4166 TC-4266

Only

7" TC-4166 TC-4266

Only

3-5/8"

TC-4166

4-5/8"

Hole for 1/2" Conduit Knockout for 3/4" Conduit

1-5/64"

TC-4266

Only

1/2" 1/4"

2-1/4"

Back

5/16"

Inspection

Visually inspect the carton for damage. If damaged, notify the appropriate carrier immediately. If undamaged, open the carton and visually inspect the device for obvious defects. Return damaged or defective products.

Required Installation Items

• Wiring diagram

• Tools (not provided):

Volt-ohm meter Room temperature thermometer on °F or °C Appropriate screwdriver(s) for cover, terminals and

mounting screws Appropriate drill and drill bit for mounting screws

INSTALLATION

Caution:

1. Installer must be a qualified, experienced technician.

2. Disconnect power supply before installation to prevent electrical shock and equipment damage.

3. Make all connections in accordance with the electrical wiring diagrams, and in compliance with national and local codes. Use copper conductors only.

4. Do not exceed ratings of the device.

5. Avoid locations where excessive moisture, corrosive fumes or vibrations are present.

Figure-2 Case Dimensions.

Procedure for Remote Bulb Mounting

Air Bulb Models — Mounting in Return Air Duct

1. Remove cover and provide two holes for #10 round head screws using the housing as the template or by using the dimensions shown in Figure-2.

2. Partially insert the mounting screws in the screw holes. Fit the housing over the screws, slide housing down on the screws and tighten the screws.

Air Bulb Models — Mounting Outside of Return Air Duct

1. Prepare duct for mounting by cutting hole and providing mounting screw holes per Figure-2.

2. Fabricate a cover as shown in Figure-3.

3. Carefully roll bulbs toward back of unit and insert through 2-1/4" x 2-1/2" (57 mm x 64 mm) hole.

4. Remove cover and attach unit to duct with #10 screws.

5. Attach cover over 2-1/4" x 2-1/2" (57 mm x 64 mm) hole.

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