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Benchmark 2500DF-3000DF Installation, Operation & Maintenance Manual
Table A-1: Boiler Menu Item Descriptions – Continued
MENU LEVEL & OPTION
Internal Setpoint
Unit Size
Fuel Type
Boiler Mode
(If Unit Type = Boiler)
Remote Signal
(If Mode = Remote Setpoint,
Direct Drive or Combination)
Bldg Ref Temp
(If Boiler Mode = Outdoor
Reset)
Reset Ratio
(If Boiler Mode = Outdoor
Reset)
Outdoor Sensor
System Start Tmp
(If Outdoor Sensor is Enabled)
Setpoint Lo Limit
Setpoint Hi Limit
Temp Hi Limit
Max Valve Position
Pump Delay Timer
OMM-0099_0A
GF-145
APPENDIX A – BOILER MENU ITEM DESCRIPTIONS
CONFIGURATION MENU
Allows internal setpoint to be set (40°F to 240°F).
Default is 130°F.
Sets unit size from 600 MBH to 6000 MBH depending on
the Unit Type.
Allows selection of Natural Gas or Propane
It allows selection of: Constant Setpoint, Remote
Setpoint, Direct Drive, Combination, or Outdoor Reset
Mode. Default is Constant Setpoint Mode.
Used to set the type of external signal which will be used
when operating in the Remote Setpoint, Direct Drive or
Combination Mode. The factory default is 4-20 mA/1-5V.
Allows the building reference temperature to be set when
operating a boiler in the Outdoor Reset Mode. Default is
70°F.
Permits setting of Reset Ratio when operating boiler in
the Outdoor Reset Mode. Reset Ratio is adjustable from
0.1 to 9.9. Default is 1.2.
Allows outdoor sensor function to be enabled or
disabled. Default is disabled.
If outdoor sensor is enabled, this menu item allows the
system start temperature to be set from 30 to 100°F.
Default is 60°F.
Used to set the minimum allowable setpoint (40°F to
Setpoint Hi Limit). Default is 60°F
Used to set the maximum allowable setpoint (Setpoint Lo
Limit to 210°F). Default is 140°F.
This is the maximum allowable outlet temperature (40 to
210°F). Any temperature above this setting will turn off
the unit. The temperature must then drop 5° below this
setting to allow the unit to run. Default Hi Limit is 160°F.
Sets the maximum allowable valve position for the unit
(40% to 100%). Default is 100%.
Specifies the amount of time (0 to 30 min.) to keep the
pump running after the unit turns off. Default is zero.
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
DESCRIPTION
Page 141 of 234
PR1: 05/21/2014
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