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JOHNSON CONTROLS Thermostat Cover: For Johnson Controls T-4000, Blank Cover - Pneumatic Thermostat Covers
JOHNSON CONTROLSPneumatic Thermostat Covers

JOHNSON CONTROLS Thermostat Cover: For Johnson Controls T-4000, Blank Cover

The Johnson Controls T-4000-2138 is a beige plastic thermostat cover accessory designed for the Johnson Controls T-4000 series pneumatic thermostats. It includes a blank cover and is intended for vertical mounting…

SKU 3G-OTH-69390

Also listed as: T40002138 · T 4000 2138

Brand
JOHNSON CONTROLS
Item
Thermostat Cover: For Johnson Controls T-4000, Blank Cover
Category
Pneumatic Thermostat Covers
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

JOHNSON CONTROLS
Manufacturer Part Number
T-4000-2138
Material
Plastic
Color
Beige
Includes
Blank Cover
Accessory Type
Thermostat Cover
Color/Material
Beige, Plastic
Mounting Direction
Vertical
Compatible Brand and Series
Johnson Controls T-4000

Technical Documents

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JOHNSON CONTROLS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Johnson Controls T-4000-2138 is a beige plastic thermostat cover accessory designed for the Johnson Controls T-4000 series pneumatic thermostats. It includes a blank cover and is intended for vertical mounting. This cover provides a protective enclosure for the thermostat.

Frequently Asked Questions

What is the Johnson Controls T-4000-2138 thermostat cover used for?

The Johnson Controls T-4000-2138 is a beige plastic blank cover accessory for T-4000 series pneumatic thermostats. It provides a protective enclosure for the thermostat and is designed for vertical mounting. This cover helps shield the thermostat from dust and physical damage in commercial HVAC applications.

What are the specifications of the Johnson Controls T-4000-2138 thermostat cover?

The T-4000-2138 is a thermostat cover accessory from Johnson Controls. It is made of beige plastic, includes a blank cover, and is intended for vertical mounting. The cover is compatible with the Johnson Controls T-4000 series pneumatic thermostats. The manufacturer part number is T-4000-2138.

Where to buy the Johnson Controls T-4000-2138 thermostat cover worldwide?

3G Electric supplies the Johnson Controls T-4000-2138 thermostat cover to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and to place an order for this T-4000 series accessory.

How to install the Johnson Controls T-4000-2138 thermostat cover?

To install the Johnson Controls T-4000-2138 cover, first ensure the T-4000 thermostat is mounted vertically. Align the blank plastic cover over the thermostat base and secure it using the provided mounting hardware. Follow standard HVAC best practices for pneumatic thermostat cover installation to ensure a snug fit and proper protection.

Used in

Common applications for JOHNSON CONTROLS
Industrial refrigeration — Johnson Controls P170SA-1C dual pressure control for compressor protection in ammonia or halocarbon systems
Chiller plant automation — Johnson Controls VA7810-HGA-2 electric globe valve actuator for modulating chilled water flow in VG7000 series valves
Pneumatic HVAC retrofit — Johnson Controls T-4002-302 conversion kit for upgrading existing Robertshaw thermostats in commercial buildings
Cooling tower water management — Johnson Controls V-4332-1007 pneumatically actuated diaphragm valve for 3-way diverting of water flow
Boiler fuel oil pressure monitoring — Johnson Controls P545NCB-25C electronic lube oil pressure control with alarm for burner management systems
Process pressure sensing — Johnson Controls P599AAPS105C pressure transmitter with IP67 rating for washdown zones in food and beverage plants

JOHNSON CONTROLS Products

3G Electric supplies JOHNSON CONTROLS pneumatic thermostat covers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Thermostat Cover: For Johnson Controls T-4000, Cover with Logo, T-4000-2139
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Thermostat Cover: For Johnson Controls T-4000, Cover with Logo, T-4000-2139
Thermostat Cover: For Johnson Controls T-4000, Cover with Thermometer, Setpoint Window, and Logo (MPN T-4000-2146)
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Thermostat Cover: For Johnson Controls T-4000, Cover with Thermometer, Setpoint Window, and Logo (MPN T-4000-2146)
Thermostat Cover: For Johnson Controls T-4000, Cover with Thermometer Window and Logo, T-4000-2141
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Thermostat Cover: For Johnson Controls T-4000, Cover with Thermometer Window and Logo, T-4000-2141
Thermostat Cover: For Johnson Controls T-4000, Cover with Setpoint Window and Logo, T-4000-2145
JOHNSON CONTROLS
Thermostat Cover: For Johnson Controls T-4000, Cover with Setpoint Window and Logo, T-4000-2145
Thermostat Cover: For Johnson Controls T-4000, Cover with Logo, T-4000-3139
JOHNSON CONTROLS
Thermostat Cover: For Johnson Controls T-4000, Cover with Logo, T-4000-3139
Thermostat Cover: For Johnson Controls T-4000, Cover with Logo, T-4000-3144
JOHNSON CONTROLS
Thermostat Cover: For Johnson Controls T-4000, Cover with Logo, T-4000-3144

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