Product Details
Configured for automatic burner sequencing, flame supervision, and diagnostic execution in industrial combustion systems, the Honeywell RM7800G1018 (RM7800G Burner Control Module) provides direct physical/electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | RM7800G1018 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.7 kg (1 lb 10 oz net / 8.0 kg shipping package) |
| Dimensions | 127 mm x 127 mm x 133 mm (Q7800A) / 155 mm (Q7800B) |
| Operating Temp | -40 to 60 deg C |
| Power Consumption | 120 VAC (+10%, -15%), 50/60 Hz (+/-10%) |
| Application | Microprocessor-based Programming Burner Control |
| Purge / Timers | PrePurge via ST7800A Card; PostPurge 15 sec |
| Flame Establishing | Pilot: 4 or 10 sec; Main: 10 or 15 sec |
| System Interfaces | Five Diagnostic LEDs, Run/Test Switch, S7800 KDM Display |
| Compatible Subbases | Q7800A, Q7800B Universal Wiring Subbases |
| Required Amplifiers | R7847, R7848, R7849, R7851, R7852, R7861, or R7886 |
Channel-to-Channel Isolation and Flame Signal Conditioning
The RM7800G1018 integrates interchangeable plug-in flame amplifiers with galvanic channel-to-channel isolation to prevent field common-mode electrical noise from corrupting flame current evaluation. Dynamic self-checking circuits continuously validate flame detector signal integrity, while a nonvolatile EEPROM preserves historical fault codes, sequence logs, and lockout status through total power loss events. External electrical test ports allow direct multimeter voltage checks across relay outputs without disturbing subbase wiring.
Frequently Asked Questions
Q: Does removing the S7800 Keyboard Display Module interrupt the active combustion safety sequence?
A: No. The S7800 Keyboard Display Module functions as an operator interface; the underlying microcontrollers on the RM7800G main circuit board maintain independent flame safeguard execution.
Q: How does the ST7800A purge timer card set the prepurge time limit?
A: Prepurge timing is fixed by the physical ST7800A card inserted into the module slot; changing prepurge duration requires installing a different rated ST7800A timer card.
Field Installation Guidelines
- Disconnect all 120 VAC main power feeds before mounting the RM7800G1018 onto the Q7800A or Q7800B subbase.
- Ensure the ST7800A Purge Timer Card and matching R78 series Flame Signal Amplifier are firmly seated in their respective keyway sockets.
- Align the module housing top edge with the subbase hinges and swing the unit downward until the terminal prongs fully engage the subbase receptacle.
- Tighten the two captive mounting screws at the bottom of the module frame to a torque of 0.8 to 1.1 Nm.
- Verify that field wiring shield drains ground at a single panel earth point to prevent ground loops across the flame signal lines.
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.
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