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7800 SERIES EC7895A, RM7895A RELAY MODULE
65-0205
28
Honeywell Europe S.A.
3 Avenue du Bourget
B-1140 Brussels Belgium
Honeywell Asia Pacific Inc.
Room 3213-3225
Sun Hung Kai Centre
No. 30 Harbour Road
Wanchai
Hong Kong
Home and Building Control
Honeywell Limited-Honeywell Limitée
155 Gordon Baker Road
North York, Ontario
M2H 2C9
Honeywell Latin American Division
Miami Lakes Headquarters
14505 Commerce Way Suite 500
Miami Lakes FL 33016
Helping You Control Your World
®
65-0205 G.R. 1-97 Printed in U.S.A.
Home and Building Control
Honeywell Inc.
Honeywell Plaza
P.O. Box 524
Minneapolis MN 55408-0524
Table 6. Sequence And Status Hold Information.
(Continued)
NOTE: Normal sequences are in bold type, while abnormal sequences are not in bold type.
Sequence Status
If the EC7895 or RM7895 is in a HOLD condition, the following conditions could exist:
PURGE HOLD: F/G (Flame Detected) The LEDs indicate the burner status, POWER and FLAME, and that a flame
is detected. The burner sequence does not advance through PREPURGE
because a flame is detected as being present. The sequence holds, waiting
for the flame signal to clear. If the time exceeds 30 seconds, the EC7895 or
RM7895 locks out.
PURGE HOLD: T7 (Airflow Interlock) The LED indicates the burner status, POWER, and that the Air-flow Interlock
is not closed. The sequence does not advance to ignition until the Airflow
Interlock proves closed. If this time exceeds a 30 second HOLD, the
EC7895 or RM7895 locks out.
PILOT IGN The LEDs indicate the burner status, POWER, PILOT and FLAME, which is
the period of time the EC7895 or RM7895 permits the pilot valve to be open
and the pilot flame to be established.
If the EC7895 or RM7895 is in a HOLD status, the following condition could exist:
MAIN IGN The LEDs indicate the burner status, POWER, PILOT, FLAME and MAIN,
which is the period of time the EC7895 or RM7895 permits the main valve to
be open and the main flame to be established.
RUN The LEDs indicate the burner status, POWER, PILOT, FLAME and MAIN,
which is the period of time after the Ignition Trials and before the operating
controller set point is reached. During this time, the burner is firing under the
control of the operating controller (EC7895 or RM7895A).
RUN The LEDs indicate the burner status, POWER, FLAME and MAIN, which is
the period of time after the Ignition Trials and before the operating controller
set point is reached.
RESET/ALARM TEST The LED indicates the burner status, POWER and ALARM. This condition
indicates the reset push button 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.
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