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Operating Procedures
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An alarm that shuts down and locks out the entire
module.
DO11 Panel Heater / Fan (optional)
This is the digital output is used when temperature control
inside control panel is required (identical to AI11).
Expansion IO Screen
This screen is only applicable to the primary module. This
screen controls analog inputs and digital requests.
AI1
These show the Suction Pressure of Circuit 2.
AI2
These show the Discharge Pressure of Circuit 2.
DI3, DI4
These show the Discharge / Suction Pressure switches of
Circuit 2. DI closed - pressure is in the normal range; DI
opened - pressure is exceeding normal range threshold
(faulty state).
DI5
This is the feedback for Pump-down pressure switch of
Circuit 2. DI closed - pressure is in the normal range; DI
opened - pressure is exceeding normal range threshold
(faulty state).
Figure 17. Module trend screen
34
DO1, DO2, DO6
Fans 1, 2, 3. This digital output is used to turn fans of Fan
Bank 2 on and off.
DO3
Liquid Line Bypass solenoid Valve Circuit 2.
DO4
Liq Line Solenoid Circuit 2. It energizes / deenergizes liquid
line solenoid valve.
DO5
Reversing Valve Circuit 2. Energized – Heating Mode;
deenergized – Cooling Mode or Defrost (default state).
Modules Trend Screen
When on the primary module screen, pressing the trend
button displays the module trend screen.
Module Trend Screen displays three trends: Controlled
inlet / outlet water temperatures and Module Demand in %.
It displays Entering / Leaving Load Water Temperatures.
Trends can be viewed in real time as well as for the last
seven days. Each variable is trended every three seconds.
Trending data is stored on HMI internal memory.
Apart from displaying trends, Module Trend Screen has
controls for viewing, scrolling, zooming, deleting trends etc.
ARTC-SVX006A-EN
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