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
66-1195—01 4
Fig. 1. Mounting dimensions of RM7890, RM7895 Relay Module and Q7800A Subbase in in. (mm).
Fig. 2. Mounting dimensions of RM7890, RM7895 Relay Module and Q7800B Subbase in in. (mm).
Weight:
RM7890, RM7895 with Dust Cover: 1 lb, 13 oz (829 grams)
unpacked.
Approvals:
Underwriters Laboratories Inc. Listed: File No. MP268, Guide
no. MCCZ.
Canadian Standards Association Certified: LR9S329-3.
Factory Mutual Approved: Report No. J.I.1V9A0.AF.
Swiss Re (formerly IRI) Acceptable.
Federal Communications Commission: Part 15, Class B,
Emissions.
Mounting:
Q7800A Wiring Subbase for panel mounting.
Q7800B Wiring Subbase for wall or burner mounting.
Required Components:
Plug-in Flame Signal Amplifier (See Table 4).
ST7800A Purge Timer (for RM7895 only).
Accessories:
Keyboard Display Modules (KDM):
S7800A1118 Katakana (Japanese) language.
Communications:
Modbus using S7810M1003 Modbus Module or configuring
the S7800 Keyboard Display.
S7810A1009 Data ControlBus™ Module (if no KDM used).
Miscellaneous:
A7800A1002 7800 SERIES Tester.
S7820A1007 Remote Reset Module.
203541 Data ControlBus Connector, 5-wire.
203765 Remote Display Mounting Bracket.
221729 Dust Cover, Relay Module.
5
(127)
5 (127)
M5148A
BURNER CONTROL
OPTIONAL TERMINAL TEST ACCESS SLOT COVER.
1
1
POWER
PILOT
FLAME
MAIN
ALARM
RESET
5-1/4 (133)
5
(127)
5 (127)
M5149
BURNER CONTROL
REMOVE ONLY FOR TERMINAL TEST ACCESS.
1
1
POWER
PILOT
FLAME
MAIN
ALARM
RESET
6-3/32 (155)