Greenheck 7800 Series Relay Modules - Manual

® U.S. Registered Trademark
Copyright © 1998 Honeywell Inc. • All Rights Reserved
INSTALLATION INSTRUCTIONS
66-1090-2
RM7895A,B,C,D/EC7895A,C;
RM7896A,B,C,D
7800 SERIES Relay Modules
APPLICATION
The RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D are
microprocessor-based integrated burner controls for
automatically fired gas, oil, or combination fuel single burner
applications. They are intended to replace the R4795 and
R7795 Primary Controls. The RM7895A,B,C,D/EC7895A;
RM7896A,B,C,D systems consist of a relay module, subbase,
amplifier, and purge card. Options include keyboard display
module (KDM), Personal Computer Interface, Data
ControlBus Module™, remote display mounting, expanded
annunciator and Combustion System Manager® Software.
Functions provided by the RM7895A,B,C,D/EC7895A,C;
RM7896A,B,C,D include automatic burner sequencing, flame
supervision, system status indication, system or self-
diagnostics and troubleshooting. The RM7896 provides a
postpurge function.
This document provides installation and static checkout
instructions. Other applicable publications are:
63-2278:
Q7700 Network Interface Unit Product Data.
65-0084: Q7800A,B 22-Terminal Wiring Subbase Product
Data.
65-0090: S7800A Keyboard Display Module Product Data.
65-0091: S7810A Data ControlBus Module™ Product
Data.
65-0095: S7820 Remote Reset Module Product Data.
65-0097: 221729C Dust Cover Packing Instructions.
65-0101: S7830 Expanded Annunciator Product Data.
65-0102 ZM7850A Combustion System Manager“
Operating Instructions.
65-0109: R7824, R7847, R7848, R7849, R7861, R7886
Flame Amplifiers for the 7800 Series Product
Data.
65-0131: 221818A Extension Cable Assembly Product
Data.
65-0229: 7800 SERIES Relay Modules Checkout and
Troubleshooting Product Data.
SPECIFICATIONS
Electrical Ratings (See Table 3):
Voltage and Frequency:
RM7895/RM7896: 120 Vac (+10/-15%), 50/60 Hz (
±
10%).
EC7895A,C: 220/240 Vac (+10%/-15%), 50/60 Hz (
±
10%)
Power Dissipation: 10W maximum.
Maximum Total Connected Load: 2000 VA.
Fusing Total Connected Load: 20A maximum, type FRN or
equivalent.
Environmental Ratings:
Ambient Temperature:
Operating: -40
°
F to 140
°
F (-40
°
C to +60
°
C).
Storage: -40
°
F to 150
°
F (-40
°
C to +66
°
C).
Humidity: 85% relative humidity continuous,
noncondensing.
Vibration: 0.5G environment.
Approvals:
RM7895/RM7896:
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.
IRI Acceptable.
Federal Communications Commission: Part 15, Class B,
Emissions.
EC7895A,C: Factory Mutual Approved.
INSTALLATION
When Installing this Product…
1. Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous
condition.
2. Check the ratings given in the instructions and marked
on the product to make sure the product is suitable for
the application.
3. Installer must be a trained, experienced, flame
safeguard service technician.
4. After installation is complete, check out the product
operation as provided in these instructions.
WARNING
Fire or Explosion Hazard.
Can cause property damage, severe injury,
or death.
Follow applicable safety requirements when installing
a control on a burner to prevent death or severe injury.
CAUTION
Electrical Shock Hazard.
Can cause personal injury or damage equipment .
Disconnect power supply before beginning
installation.