Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
Siemens Pneumatic Thermostat Conversion Kit - Retrofit Kits
SiemensRetrofit Kits

Siemens Pneumatic Thermostat Conversion Kit

The SIEMENS Pneumatic Thermostat Conversion Kit (SKU 4E668, MPN 192-840) is a retrofit kit designed to replace a Robertshaw direct-acting pneumatic thermostat. It features a vertical mounting direction with a beige…

SKU 3G-OTH-69961

Brand
Siemens
Item
Pneumatic Thermostat Conversion Kit
Category
Retrofit Kits
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Siemens
Manufacturer Part Number
192-840
Type
: Barber-Colman/Honeywell/Johnson Controls/Robertshaw
Replaces Brand
Robertshaw
Thermostat Action
Direct
Manufacturer Model Number
192-840
Mounting Direction/Cover Color
Vertical/Beige
Number of Pipes/Air Flow Output
2 Pipes, High Volume
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The SIEMENS Pneumatic Thermostat Conversion Kit (SKU 4E668, MPN 192-840) is a retrofit kit designed to replace a Robertshaw direct-acting pneumatic thermostat. It features a vertical mounting direction with a beige cover and supports a 2-pipe, high-volume air flow output.

Frequently Asked Questions

What is the SIEMENS Pneumatic Thermostat Conversion Kit used for?

This retrofit kit replaces a Robertshaw direct-acting pneumatic thermostat in commercial HVAC systems. It is designed for vertical mounting with a beige cover and supports a 2-pipe, high-volume air flow output, making it suitable for upgrading building automation controls.

What are the specifications of the SIEMENS 192-840 conversion kit?

The SIEMENS 192-840 is a direct-acting pneumatic thermostat conversion kit. It replaces Robertshaw models, features vertical mounting with a beige cover, and operates with 2 pipes at high-volume air flow. The kit is compatible with Barber-Colman, Honeywell, and Johnson Controls systems.

Where to buy the SIEMENS 192-840 conversion kit worldwide?

3G Electric supplies the SIEMENS 192-840 pneumatic thermostat conversion kit worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this retrofit kit to your facility, ensuring compliance with international shipping requirements.

How to install the SIEMENS pneumatic thermostat conversion kit?

Installation involves removing the existing Robertshaw direct-acting thermostat and mounting the SIEMENS kit vertically. Connect the 2-pipe high-volume air lines per the manufacturer's instructions. Ensure proper calibration for direct-acting control. Consult a qualified HVAC technician for best results.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

3G Electric supplies Siemens retrofit kits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
POWERS Pneumatic Thermostat Conversion Kit: Barber-Colman/Honeywell/Johnson Controls/Robertshaw (MPN 192-850W). Key specifications — Thermostat Action: Direct; Mounting Direction/Cover Color: Vertical/White; Replaces Brand: Robertshaw; Manufacturer Model Number: 192-850W; Brand: POWERS; Number of Pipes/Air Flow Output: 2 Pipes, High Volume.
POWERS
POWERS Pneumatic Thermostat Conversion Kit: Barber-Colman/Honeywell/Johnson Controls/Robertshaw (MPN 192-850W). Key specifications — Thermostat Action: Direct; Mounting Direction/Cover Color: Vertical/White; Replaces Brand: Robertshaw; Manufacturer Model Number: 192-850W; Brand: POWERS; Number of Pipes/Air Flow Output: 2 Pipes, High Volume.
SIEMENS Pneumatic Thermostat: 45° to 85°F, 2 Pipes, High Volume Pipes/Air Flow Output, Reverse (MPN 192-203). Key specifications — Temperature Control Range: 45° to 85°F; Number of Pipes/Air Flow Output: 2 Pipes, High Volume; Thermostat Action: Reverse; Mounting Direction/Includes Cover: Vertical, No; Brand: SIEMENS.
Siemens
SIEMENS Pneumatic Thermostat: 45° to 85°F, 2 Pipes, High Volume Pipes/Air Flow Output, Reverse (MPN 192-203). Key specifications — Temperature Control Range: 45° to 85°F; Number of Pipes/Air Flow Output: 2 Pipes, High Volume; Thermostat Action: Reverse; Mounting Direction/Includes Cover: Vertical, No; Brand: SIEMENS.
HONEYWELL Pneumatic Thermostat Conversion Kit: Dual Temp, TP972A2192, Direct and Reverse (MPN TP972A2192/U). Key specifications — Thermostat Action: Direct and Reverse; Mounting Direction/Cover Color: Vertical/Silver; Replaces Brand: Barber-Colman; Manufacturer Model Number: TP972A2192; Brand: HONEYWELL; Number of Pipes/Air Flow Output: 2 Pipes, High Volume.
Honeywell
HONEYWELL Pneumatic Thermostat Conversion Kit: Dual Temp, TP972A2192, Direct and Reverse (MPN TP972A2192/U). Key specifications — Thermostat Action: Direct and Reverse; Mounting Direction/Cover Color: Vertical/Silver; Replaces Brand: Barber-Colman; Manufacturer Model Number: TP972A2192; Brand: HONEYWELL; Number of Pipes/Air Flow Output: 2 Pipes, High Volume.
SIEMENS Pneumatic Thermostat: 45° to 85°F, 2 Pipes, High Volume Pipes/Air Flow Output, Direct (MPN 192-202). Key specifications — Temperature Control Range: 45° to 85°F; Number of Pipes/Air Flow Output: 2 Pipes, High Volume; Thermostat Action: Direct; Mounting Direction/Includes Cover: Vertical, No; Brand: SIEMENS.
Siemens
SIEMENS Pneumatic Thermostat: 45° to 85°F, 2 Pipes, High Volume Pipes/Air Flow Output, Direct (MPN 192-202). Key specifications — Temperature Control Range: 45° to 85°F; Number of Pipes/Air Flow Output: 2 Pipes, High Volume; Thermostat Action: Direct; Mounting Direction/Includes Cover: Vertical, No; Brand: SIEMENS.
HONEYWELL Pneumatic Thermostat Conversion Kit: Single Temp, TP970B2077, Reverse, Vertical/Silver (MPN TP970B2077/U). Key specifications — Thermostat Action: Reverse; Mounting Direction/Cover Color: Vertical/Silver; Replaces Brand: Robertshaw; Manufacturer Model Number: TP970B2077; Brand: HONEYWELL; Number of Pipes/Air Flow Output: 2 Pipes, High Volume.
Honeywell
HONEYWELL Pneumatic Thermostat Conversion Kit: Single Temp, TP970B2077, Reverse, Vertical/Silver (MPN TP970B2077/U). Key specifications — Thermostat Action: Reverse; Mounting Direction/Cover Color: Vertical/Silver; Replaces Brand: Robertshaw; Manufacturer Model Number: TP970B2077; Brand: HONEYWELL; Number of Pipes/Air Flow Output: 2 Pipes, High Volume.
JOHNSON CONTROLS Pneumatic Thermostat Conversion Kit: Single Temp, T-4002-301, Direct. Key specifications — Thermostat Action: Direct; Mounting Direction/Cover Color: Horizontal/White; Replaces Brand: Robertshaw; Manufacturer Model Number: T-4002-301; Brand: JOHNSON CONTROLS; Number of Pipes/Air Flow Output: 2 Pipes, High Volume.
JOHNSON CONTROLS
JOHNSON CONTROLS Pneumatic Thermostat Conversion Kit: Single Temp, T-4002-301, Direct. Key specifications — Thermostat Action: Direct; Mounting Direction/Cover Color: Horizontal/White; Replaces Brand: Robertshaw; Manufacturer Model Number: T-4002-301; Brand: JOHNSON CONTROLS; Number of Pipes/Air Flow Output: 2 Pipes, High Volume.

More from Siemens

View all Siemens parts →
SIEMENS Retrostat Kit: Barber Colman/Honeywell/Johnson/Powers/Robertshaw, Single Temp, 192-840W. Key specifications — Thermostat Action: Direct; Mounting Direction/Cover Color: Vertical/White; Replaces Brand: Robertshaw; Manufacturer Model Number: 192-840W; Brand: SIEMENS; Number of Pipes/Air Flow Output: 2 Pipes, High Volume.
Siemens
SIEMENS Retrostat Kit: Barber Colman/Honeywell/Johnson/Powers/Robertshaw, Single Temp, 192-840W. Key specifications — Thermostat Action: Direct; Mounting Direction/Cover Color: Vertical/White; Replaces Brand: Robertshaw; Manufacturer Model Number: 192-840W; Brand: SIEMENS; Number of Pipes/Air Flow Output: 2 Pipes, High Volume.
SIEMENS Pneumatic Thermostat Conversion Kit: Barber-Colman/Honeywell/Johnson Controls/Robertshaw (MPN 192-841). Key specifications — Thermostat Action: Reverse; Mounting Direction/Cover Color: Vertical/Beige; Replaces Brand: Barber-Colman; Manufacturer Model Number: 192-841; Brand: SIEMENS; Number of Pipes/Air Flow Output: 2 Pipes, High Volume.
Siemens
SIEMENS Pneumatic Thermostat Conversion Kit: Barber-Colman/Honeywell/Johnson Controls/Robertshaw (MPN 192-841). Key specifications — Thermostat Action: Reverse; Mounting Direction/Cover Color: Vertical/Beige; Replaces Brand: Barber-Colman; Manufacturer Model Number: 192-841; Brand: SIEMENS; Number of Pipes/Air Flow Output: 2 Pipes, High Volume.
SIEMENS Pneumatic Thermostat Conversion Kit: Johnson Controls, Dual Temp, 194-3083, Vertical/Beige. Key specifications — Thermostat Action: Direct and Reverse; Mounting Direction/Cover Color: Vertical/Beige; Replaces Brand: Johnson Controls; Manufacturer Model Number: 194-3083; Brand: SIEMENS; Number of Pipes/Air Flow Output: 2 Pipes, High Volume.
Siemens
SIEMENS Pneumatic Thermostat Conversion Kit: Johnson Controls, Dual Temp, 194-3083, Vertical/Beige. Key specifications — Thermostat Action: Direct and Reverse; Mounting Direction/Cover Color: Vertical/Beige; Replaces Brand: Johnson Controls; Manufacturer Model Number: 194-3083; Brand: SIEMENS; Number of Pipes/Air Flow Output: 2 Pipes, High Volume.