Products Description




| Company Information | |||
| [email protected] | |||
| Mobile | +8613950166376 | ||
| +8613950166376 | |||
| 13950166376 |

Technical Specifications
| Parameter | Specification |
|---|---|
| Model | Honeywell RM7850A1019 |
| Series | 7800 SERIES |
| Control Type | Microprocessor-based burner control |
| Power Supply | 120 Vac (+10%/-15%), 50/60 Hz (±10%) |
| Ignition Attempts | 1 or 5 (model dependent) |
| Control Voltage | 115 to 120 Vac |
| Input Signals | Preignition Interlock, Low Fire Switch, High Fire Switch, Lockout Input |
| Output Ratings | Main/Pilot Valves, Fan Motor: 120 Vac, 4A @ PF=0.5, 20A inrush |
| Alarm Contact | 120 Vac, 1A pilot duty |
| Ignition Output | 120 Vac, 2A |
| Flame Signal Input | 136 to 220 Vac, current limited |
| Firing Rate Outputs | High/Low/Modulate/Common: 120 Vac, 0.5A @ PF=0.5 |
| Ambient Operating Temp. | -40°C to +60°C (-40°F to +140°F) |
| Storage Temperature | -40°C to +66°C (-40°F to +150°F) |
| Humidity | 85% RH continuous, non-condensing |
| Vibration | 0.5G |
| Power Consumption | Max. 10 W (Relay Module) |
| Mounting | Q7800A wiring subbase (panel mount) |
| Safety Certification | SIL3 Capable, EN298, FM approved |
| Communication (Optional) | Data ControlBus™, KDM Display Module |
| Dimensions (H x W x D) | 127 x 127 x 133 mm |
| Weight | 0.73 kg |
FAQ
FAQ
Q1: What type of fuel burners can the RM7850A1019 control?
A1: The RM7850A1019 is designed for use with gas, oil, or combination fuel burners in fully modulating applications.
Q2: What safety features does the RM7850A1019 provide?
A2: It includes dynamic self-check logic, interlock monitoring, tamper-resistant timing, and both high and low fire purge switch checks.
Q3: How many ignition attempts can the RM7850A1019 perform?
A3: It can be configured for either 1 or 5 ignition attempts depending on the model and system requirements.
Q4: Can the RM7850A1019 retain data after power loss?
A4: Yes, it uses non-volatile memory to retain sequence status and fault history after power loss.
Q5: Is a display module necessary for operation?
A5: The Keyboard Display Module (KDM) is optional but provides enhanced diagnostics, flame signal strength, and status information.
Q6: Can the module be reset remotely?
A6: Yes, remote reset is supported if the system installation meets the required safety standards.
Q7: What is the operating temperature range?
A7: The RM7850A1019 operates in environments from -40°C to +60°C.
Q8: What mounting base is used with this module?
A8: It mounts on a Q7800A wiring subbase, designed for panel-mounted applications.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
