Product Overview
Table Of Contents
- Application
- Features
- Optional Features
- Specifications
- Principal Technical Features
- Safety Provisions
- Internal Hardware Status Monitoring
- Closed Loop Logic Test
- Dynamic AMPLI-CHECKTM Circuitry
- Dynamic Input Check
- Dynamic Safety Relay Test
- Dynamic Self-Check Safety Circuit
- Expanded Safe-Start Check
- Off Cycle (Standby) Flame Signal Check
- Tamper Resistant Timing and Logic
- Verified Spark Termination
- First-Out Annunciation and Self- Diagnostics
- Interlock Requirements (RM7895 Only)
- Installation
- Wiring
- Assembly
- Operation
- Initiate
- Standby
- Static Checkout
- Checkout
- Equipment Recommended
- Checkout Summary
- Preliminary Inspection
- Flame Signal Measurement
- Initial Lightoff Check for Proved Pilot
- Initial Lightoff Check for Direct Spark Ignition (DSI)
- Pilot Turndown Test (All Installations Using a Pilot)
- Ignition Interference Test (All Flame Rods)
- To Eliminate Ignition Interference
- Flame Signal with Hot Combustion Chamber (All Installations)
- Safety Shutdown Tests (All Installations)
- Troubleshooting
RM7890; RM7895 100 VAC 7800 SERIES RELAY MODULES
27 66-1195—01
PILOT IGN The LED indicates the burner status, POWER, PILOT, and FLAME, which is the period of time the
relay module permits the pilot valve and ignition to be energized and the pilot flame to be
established.
MAIN IGN
(RM7895 Only)
The LED indicates the burner status, POWER, PILOT, FLAME, and MAIN, which is the period of
time the RM7895 permits the main valve to be open and the main flame to be tested.
RUN The LED indicates the burner status, POWER, PILOT, FLAME and MAIN, which is the period of time
after the Ignition Trials and before the operating controller setpoint is reached. During this time, the
burner is firing under the control of the operating controller.
RESET/ALARM TEST The LED indicates the burner status, POWER and ALARM. This condition indicates that the reset
pushbutton is pressed. If it is held for more than four seconds, the alarm output is energized. The
alarm output will be de-energized after the reset pushbutton is released.
Table 13. Sequence and Status Hold Information. (Continued)
Sequence Information