Instruction Manual

Benchmark 750/1000 Boiler Installation, Operation & Maintenance Manual
APPENDIX A – BOILER MENU ITEM DESCRIPTIONS
OMM-0082_0J AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 141 of 192
GF-130 Ph.: 800-526-0288 05/21/2014
APPENDIX A: BOILER MENU ITEM DESCRIPTIONS – Continued
MENU LEVEL & OPTION DESCRIPTION
CONFIGURATION MENU
Internal Setpoint
Allows internal setpoint to be set (40°F to 240°F).
Default is 130°F.
Unit Size Sets unit size from 600 MBH to 6000 MBH depending on
the Unit Type.
Fuel Type Allows selection of Natural Gas or Propane
Boiler Mode
(If Unit Type = Boiler)
It allows selection of: Constant Setpoint, Remote
Setpoint, Direct Drive, Combination, or Outdoor Reset
Mode. Default is Constant Setpoint Mode.
Remote Signal
(If Mode = Remote Setpoint,
Direct Drive or Combination)
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.
Bldg Ref Temp
(If Boiler Mode = Outdoor
Reset)
Allows the building reference temperature to be set when
operating a boiler in the Outdoor Reset Mode. Default is
70°F.
Reset Ratio
(If Boiler Mode = Outdoor
Reset)
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.
Outdoor Sensor Allows outdoor sensor function to be enabled or
disabled. Default is disabled.
System Start Tmp
(If Outdoor Sensor is Enabled)
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.
Setpoint Lo Limit Used to set the minimum allowable setpoint (40°F to
Setpoint Hi Limit). Default is 60°F
Setpoint Hi Limit Used to set the maximum allowable setpoint (Setpoint Lo
Limit to 210°F). Default is 140°F.
Temp Hi Limit 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.
Max Valve Position Sets the maximum allowable valve position for the unit
(40% to 100%). Default is 100%.
Pump Delay Timer Specifies the amount of time (0 to 30 min.) to keep the
pump running after the unit turns off. Default is zero.