Resideo - Honeywell Home W8735S3000 Oil Electronic Aquastat Controller Alarm Module

Oil Electronic Aquastat Controller Alarm Module, the Resideo - Honeywell Home W8735S3000, is an essential alarm module for oil boiler control. This unit is used on the L7224U Oil Electronic Aquastat Controller to monitor and respond to boiler conditions with reliable performance. Designed for compact installation, it fits tight spaces while delivering clear alarms and dependable operation in demanding environments.

Key specifications and compatibility help you choose with confidence:

• Overall dimensions: 3.385" W x 0.92" D x 2.41" H
• Voltage rating: 18–30 VAC
• Frequency: 60 Hz
• Temperature range: -30 to 150°F
• Humidity tolerance: 0–95% RH (non-condensing)
• Switching action: On/Off
• Mounting: Wall mount
• Terminal type: Screw

Ideal for oil boiler control environments, this alarm module offers quick diagnostics and straightforward integration with compatible Honeywell controls. Its form factor supports wall-mount installation using simple screw terminals, while its wide voltage range and rugged temperature/humidity tolerance ensure reliable performance in varying conditions.

Secondary keywords: oil boiler control, L7224U compatibility, wall-mount installation, screw terminals, alarm module.