AERCO RECON 1000 - Manual (Page 138)

RECON Water Heaters Installation, Operation & Maintenance Manual
APPENDIX A – RECON MENU ITEM DESCRIPTIONS
Page 138 of 178 AERCO International, Inc.  100 Oritani Dr.  Blauvelt, NY 10913 OMM-0103_0A
PRI: 10/28/2014 Phone: 800-526-0288 GF-147
Table A-3: CONFIGURATION MENU ITEM DESCRIPTIONS
See section 3-6 for a range of choices and the default values.
MENU LEVEL & OPTION DESCRIPTION
20 Network Timeout
Specifies the timeout value (seconds) before a Modbus fault
is declared. Available settings range from 5 to 999 seconds.
21 Shutoff Delay Temp
This entry will reduce excessive ON/OFF cycling in AUTO
mode. When the PID temperature Control tries to lower the
valve position below the Stop Level, the unit will stay at the
Stop Level (will not cycle OFF) until the Outlet Temperature
rises above Setpoint Plus the Shutoff Delay Temp entry.
NOTE: This feature is only active in Constant Setpoint and
Remote Setpoint modes.
22 Demand Offset
This entry will reduce excessive ON/OFF cycling in AUTO
mode. When this entry is a non-zero value, the unit will not
turn on again until Valve Position In reaches the Start Level
value AND the Outlet Temperature goes below the Active
Setpoint – Demand Offset. In addition, the heater will fire at
the 29% Valve Position level or below for a period of one
minute.
When this entry is set to zero, the unit will turn on again as
soon as the Valve Position in reaches the Start Level value.
There will not be a one minute delay when firing at the 29%
Valve Position level.
23
24
Deadband High
Deadband Low
Deadband High and Deadband Low settings create an
“Outlet Temperature” Zone. In which no Valve Position
corrections will be attempted.
The Deadband ZONE is defined as operating with an Outlet
Temperature between Active Setpoint + Deadband High and
Active Setpoint – Deadband Low.
When the Outlet Temperature reaches Active Setpoint and
remains there for a period of 15 seconds, the unit will go into
a DEADBAND MODE at which point no Valve Position
corrections will be attempted while the Outlet Temperature
remains anywhere within the Deadband ZONE. When the
unit is in the DEADBAND MODE, the °F or °C LED will flash
on and off. When the Outlet Temperature drifts out of the
Deadband ZONE, the DEADBAND MODE will be terminated
and the PID LOOP will again attempt Valve Position
corrections.
25 IGST Version Displays the IGST Board Version Installed in the C-More
26 IGN Time Setting
Displays the active Ignition Time setting (4sec or 7sec) as
defined by the P4 Harness