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Schneider Electric 2211 through 2218 Series Room Thermostats

Room Thermostats
2211 through 2218 Series

These pneumatic room thermostats are designed for proportional temperature control of pneumatic valves and damper actuators to maintain room air temperatures in heating, ventilating, and air conditioning systems.

• Small size, approximately 2 x 2 in. (51 x 51 mm).
• Factory calibrated. Stainless steel ball-in-seat provides pneumatic feedback for linear, stable operation.
• Easy-to-use throttling range adjustment and recalibration.
• Adjustable bimetal shows actual throttling range in both °F and °C. Adjustable 2 to 12°F (1 to 6.7°C).
• Setpoint (in both °F and °C) shown on thermostat body with cover removed.
• Leakproof, O-ring sealed, spring-loaded self-closing branch gauge tap.
• 2214 and 2216: - Separate factory-calibrated night bimetal and setpoint dial, with fixed 4 F° (2 C°) night throttling range for accurate “night” operation. - Snap-acting (not gradual) changeover from “day” to “night” operation and vice versa.
• 2216: - Third port (R) output with manual reset lever allows full restoration of day operation (typically, of unit ventilator), with either manual or automatic reset to day-night schedule.
• 2218: - Snap-acting (not gradual) changeover from direct-action to reverse-action and vice versa.

Select a link under the "item" tab below to order.

Replaces Model No.Cat #Air ConsumptionDial Range °F (°C)Descriptions
T12-3012211-0120.017 scfm at 20 psig55 to 85 (13 to 29)Single temperature, one-pipe, D.A.
T13-3012211-0130.017 scfm at 20 psig55 to 85 (13 to 29)Single temperature, one-pipe, R.A.
T18-3012212-11815.6 scim at 20 psig55 to 85 (13 to 29)Single temperature, two-pipe, D.A., throttling range adjustable 2° to 12°.
T19-3012212-11915.6 scim at 20 psig55 to 85 (13 to 29)Single temperature, two-pipe, R.A., throttling range adjustable 2° to 12°.
-2212-61815.6 scim at 20 psig55 to 85 (13 to 29)Single temperature, two-pipe, R.A., throttling range adjustable 2° to 12°.
-2212-61915.6 scim at 20 psig55 to 85 (13 to 29)Single temperature, two-pipe, R.A., throttling range adjustable 2° to 12° (includes 20-023).
T23-3012214-12129.4 scim at 16 psigDay 55 to 85 (13 to 29)Day-Night Thermostat, two-pipe, D.A. 16 psig day, 25 psig night.
T23-3012214-12143.2 scim at 25 psigNight 50 to 80 (10 to 27)Day-Night Thermostat, two-pipe, D.A. 16 psig day, 25 psig night.
T24-3012214-12229.4 scim at 16 psigDay 55 to 85 (13 to 29)Day-Night Thermostat, two-pipe, R.A. 16 psig day, 25 psig night
T24-3012214-12243.2 scim at 25 psigNight 50 to 80 (10 to 27)Day-Night Thermostat, two-pipe, R.A. 16 psig day, 25 psig night
T27-3012216-12629.4 scim at 16 psigDay 55 to 85 (13 to 29)Day-Night Thermostat, three-pipe, with manual reset lever D.A. 16 psig day, D.A. 25 psig night.
T27-3012216-12643.2 scim at 25 psigNight 50 to 80 (10 to 27)Day-Night Thermostat, three-pipe, with manual reset lever D.A. 16 psig day, D.A. 25 psig night.
T32-3012218-13231.1 scim at 16 psig55 to 85 (13 to 29)Summer-Winter, throttling range adjustable 2° to 12°. 16 psig Main - R.A., Summer. 25 psig Main - D.A., Winter. (Can be used with 8 psig summer main if recalibrated in the field.)
T32-3012218-13243.2 scim at 25 psig55 to 85 (13 to 29)Summer-Winter, throttling range adjustable 2° to 12°. 16 psig Main - R.A., Summer. 25 psig Main - D.A., Winter. (Can be used with 8 psig summer main if recalibrated in the field.)
T32-3212218-13422.5 scim at 13 psig55 to 85 (13 to 29)Summer-Winter Thermostat for use with Honeywell 13 to 18 psig Systems. 13 psig Main - R.A., Summer. 18 psig Main - D.A., Winter.
T32-3212218-13434.5 scim at 18 psig55 to 85 (13 to 29)Summer-Winter Thermostat for use with Honeywell 13 to 18 psig Systems. 13 psig Main - R.A., Summer. 18 psig Main - D.A., Winter.
T33-3012218-13329.4 scim at 15 psig55 to 85 (13 to 29)Summer-Winter Thermostat for use with Johnson main air systems. 25 psig Main - R.A., Summer. 16 psig Main - D.A., Winter.
T33-3012218-13334.5 scim at 20 psig55 to 85 (13 to 29)Summer-Winter Thermostat for use with Johnson main air systems. 25 psig Main - R.A., Summer. 16 psig Main - D.A., Winter.
Action: Proportional; refer to Model Chart.
Setpoint range: 55 to 85°F (13 to 29°C).
Throttling range: 2 to 12°F/12 psi (1.1 to 6.7°C/83 kPa) adjustable, factory set 3°F (1.7 °C) [night, 3 to 5°F/12 psi (1.7 to 2.7°C/83 kPa), non-adjustable].
Construction: Components Die cast aluminum, stainless steel, and glass-filled nylon.
Diaphragms Fabric-reinforced neoprene.
Air filter Internal.
Supply air pressure: Clean, dry, oil free air required (Refer to EN-123).
Nominal: Refer to Model Chart and Typical Applications.
Maximum: 30 psig (207 kPa).
Connections: For spring-reinforced 3/16 in. O.D. plastic tubing and required fittings.
Air consumption: Refer to Model Chart and Typical Applications.
Calibration point: 9 psig (62 kPa) branch line pressure when ambient temperature equals setpoint (except 2218-3x1 Series and 2218-133, 12 psig branch line pressure).
Setpoint adjustment: Serrated thumbwheel, external or concealed.
Mounting: Upright position on wall.
Dimensions: 2-1/32 H x 2-1/32 W x 1-3/8 D in. (52 x 52 x 35 mm).


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