Name: RM7850A1019 Honeywell Burner Module | 120V 15s Purge CE
SKU: RM7850A1019
Price: 234.00 USD
Availability: InStock

Product details

RM7850A1019 | Honeywell Burner Control Module

Brand: Honeywell
Model: RM7850A1019
Type: Burner Control Module

Condition: New
Warranty: 12 Months
Shipping: 12-24 hours via FedEx, UPS, DHL.

Product Overview

This module controls full burner sequences. It works with 120V power and has a 15-second post-purge. The device meets CE and European Community timings. It offers flexible application and communication options. Five LEDs show the operating status. A five-function Run/Test switch helps with checks. Plug-in amplifiers are easy to swap. You can view operation and fault data locally or remotely (optional). Nonvolatile memory saves history and lockout data even after power loss. It works with existing Honeywell flame detectors.

Technical Specifications (Tree Structure)

Electrical
- Voltage: 120 Vac (+10, -15%)
- Frequency: 50/60 Hz (±10%)
- Power Dissipation: Relay Module: 10W max; KDM: 3W max
- Max Load: 2000 VA
- Fusing: 15A, type SC or equivalent
Timing & Sequence
- Post-Purge: 15 seconds
- Flame Establishing (Pilot): 3 or 5 seconds
- Flame Establishing (Main): 3, 5 sec, or intermittent
- Preignition: Yes
- PrePurge: Set by ST7800A purge timer card
- AirFlow Check: User selectable
- Pilot Type: Interrupted
- Second Stage Pilot Valve: Intermittent
Physical & Environment
- Dimensions (with Q7800A): 5 x 5 x 5.25 in (127 x 127 x 133 mm)
- Dimensions (with Q7800B): 5 x 5 x 6.09 in (127 x 127 x 155 mm)
- Weight: 1 lb 10 oz (0.7 kg)
- Operating Temp: -40 to +140 °F (-40 to +60 °C)
- Storage Temp: -40 to +150 °F (-40 to +66 °C)
- Humidity: 85% RH noncondensing
- Vibration: 0.5 G
Approvals & Compliance
- FCC: Part 15, Class B
- Factory Mutual: Report J.I. OYOA9.AF
- GASTEC: CE-63AP3070/1, EN298
- European Directives: Gas Appliance, Low Voltage, EMC
- SIL 3 Capable: In a proper Safety System
Required Components
- Q7800A or Q7800B subbase
- R7847, R7849, R7861, or R7886 amplifier
- ST7800A purge timer card

Installation & Commissioning

Mounting: Use Q7800A or Q7800B subbase.
Wiring: External voltage checks are accessible.
Setup: Insert purge timer card and amplifier.
Testing: Use the Run/Test switch for verification.

Manager’s Insight

This module reduces downtime with its diagnostic LEDs. The nonvolatile memory saves time during fault analysis. Its flexible timing suits various burner systems. A reliable choice for plant engineers.

Expert Review

We tested the RM7850A1019 in harsh boiler rooms. It performed without errors. The plug-in amplifiers simplify repairs. The 15-second post-purge ensures safety. Overall, it offers high value for burner control.

Applications & Compatible Equipment

Applications: Gas and oil burners, boilers, furnaces, process heaters.
Compatible Detectors: Works with Honeywell flame detectors (see Table 7).
Subbases: Q7800A and Q7800B.
Amplifiers: R7847, R7849, R7861, R7886.

Comparison with Similar Models

EC7830A1012 – 220-240V version for European voltage.
RM7830A1010 – Similar but with different timing options.
ST7800A1000 – Purge timer card for this series.

Frequently Asked Questions (FAQ)

What is the warranty period?
This module comes with a 12-month warranty from purchase.
How do I select the right flame amplifier?
Choose from R7847, R7849, R7861, or R7886 based on your detector.
Can I use this with a 240V supply?
No, this model is for 120V. See EC7830 series for 240V.
What does the nonvolatile memory store?
It stores history files and lockout status after power loss.
Is SIL 3 certification included?
It is SIL 3 capable in a properly designed safety system.
What is the shipping time?
We dispatch within 12-24 hours via FedEx, UPS, or DHL.
Does it come with a subbase?
No, Q7800A or Q7800B subbase is required separately.
How do I check the sequence status?
Five LEDs provide clear sequence information.