Dhw/Ch Installation And Programming; 2-10.1 Domestic Hot Water Mode; 2-10.2 Central Heating Mode - Ace Heating Solutions Atlas A050 Operating And Maintenance Manual

2-10 DHW/CH Installation and Programming

Your Atlas Boiler is preprogrammed from the factory for Domestic Hot Water or Central Heating Application.
Three different panel options are available: Basic Panel, Enhanced Panel, System Operator Interface Panel
(reference pictures below). Installation and settings vary depending on the two programming modes and the
display panel chosen.
Basic Panel Enhanced Panel

2-10.1 Domestic Hot Water Mode

The Domestic Hot Water Programming option comes standard with three temperature sensors: one installed on
the inlet, one installed on the outlet of the boiler, and one (two wire single safety sensor) shipped loose to be
installed on the storage tank. The tank sensor should be installed on the tank in an immersion well. For faster
heat transfer, or if the well is not a snug fit on the sensor, use of heat conductive compound is suggested. Sensor
wires can be extended with 22AWG shield cable up to 50 feet.
Modulation sensor
The Domestic Hot Water mode is designed to modulate the boiler to maintain the setpoint of the storage tank. If
the tank sensor cannot be installed, it is optional to operate the boiler using the factory installed inlet
temperature sensor. The Controller's parameters can be changed using the Enhanced panel or the System
Operator Interface panel. To adjust to the proper settings, see section 4-20 for more information.

2-10.2 Central Heating Mode

Central Heating Mode also comes standard with three temperature sensors: one installed on the inlet, one
installed on the outlet, and one (two wire single safety sensor) outdoor temperature sensor shipped loose.
Modulation sensor
In Central Heating Mode, by default, outlet sensor is chosen as the modulation sensor. Boiler will modulate to
maintain outlet temperature at setpoint. The modulation sensor for Central Heating can be changed to inlet or
header sensor, using the Enhanced panel or the System Operator Interface panel, see section 4-18 for more
information.
Outdoor reset
Outdoor reset algorithm will be disabled from the factory. To enable reset function using the Basic Panel, see
section 3-5. For Enhanced panel instructions, see section 4-19 for more details. The outdoor temperature sensor
should be installed in a shady location and away from vents. Sensor wires can be extended with 22AWG shield
cable up to 50 feet.
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