Product Details
The Honeywell R7140L1009/U, also cataloged as the R7140L1009/U Burner Control Module, operates as a dedicated hardware component for automatic burner sequencing, flame supervision, and diagnostic execution within 7800 Series burner management systems.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | R7140L1009/U |
| Brand | Honeywell |
| Origin | USA |
| Weight | 1.4 kg (3 lbs 1 oz) |
| Dimensions | 177 mm x 156 mm x 146 mm (7 in. x 6 5/32 in. x 5 3/4 in.) |
| Operating Temp | -40 to +60 deg C (-40 to +140 deg F) |
| Power Consumption | 120 VAC (+10, -15%), 50/60 Hz (+/-10%) |
| Application Type | Upgrade replacement programming control for R4140 and BC7000 |
| PrePurge Timing | Determined by ST7800 Plug-in Purge Timer Card |
| PostPurge Timing | 15 sec |
| Pilot Flame Establishing Period | 4 sec or 10 sec |
| Main Flame Establishing Period | 10 sec or 15 sec |
| Early Spark Termination | 5 sec |
| Interlocks / Airflow Check | Lockout / User selectable |
| Required Accessories | ST7800 Purge Timer Card, R78XX Series Amplifier Module |
| Vibration / Compliance | 0.5 G environment / UL Recognized File MP268, FCC Part 15 Class B |
Cold Junction Compensation and Channel-to-Channel Isolation
The module incorporates microprocessor-based signal processing circuitry designed to interface directly with specialized R78XX flame signal amplifiers and ST7800 purge timing cards. Internal optical isolation channels decouple line-voltage interlock input circuits from sensitive digital timing logic, preventing high-voltage electrical noise from corrupting flame safety sequencing. Embedded 4-20 mA HART feedback capabilities and cold junction reference logic in connected flame sensors enable precise monitoring of flame signal amplitude across front panel diagnostic interfaces.
Frequently Asked Questions
Q: What additional components are required to install the R7140L1009/U module as a replacement control?
A: The module requires an ST7800 Plug-in Purge Timer Card (to set prepurge timing) and a compatible R78XX Series Flame Signal Amplifier (such as R7847, R7848, R7849, or R7861).
Q: Can the R7140L1009/U directly replace legacy Honeywell BC7000 and R4140 programmer controls?
A: Yes, it is engineered as an upgrade replacement control specifically for legacy BC7000 and R4140 burner programmer chassis installations.
Field Installation Guidelines
- Ensure main 120 VAC electrical power to the burner control panel is completely de-energized prior to removing or mounting the control module.
- Plug the ST7800 Purge Timer Card and appropriate R78XX Flame Signal Amplifier into their respective card slots on the R7140L1009/U unit before mounting.
- Align the subbase mounting feet and secure the module onto the wiring subbase using captive mounting screws.
- Verify that field wiring connections for interlocks, airflow switch, pilot valve, and main valve adhere strictly to local electrical and safety code requirements.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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