Sequence Setting - LG ARND DCR4 Series Installation Manual

Sequence Setting

Figure 48: Electric Preheater Setting Schematic.
After installing the electric preheater, a heater setting is required.
1. Go to Service tab and select configuration.
2. Find the Preheat Heater Control section.
3. Select Installed Heater Capacity at the Heater Installation setting. Options are uninstalled, 10 kW Installed or 20 kW installed.
4. Set the heater enabling OA temperature and target mixed air (MA) temperature setpoint.
• OA Enabling Temperature: Heater will be enable below the setpoint. This value is adjustable between 5 ~ 23°F, and the factory default is
14°F.
• MA Setpoint: This setpoint will be used for achieving heater outlet temperature. This value is also adjustable (10 kW heater: 21.2 ~ 39.2°F,
Default 30.2°F; 20 kW heater: 37.4 ~ 55.4°F, Default 46.4°F).
Figure 49: Preheat Heater Control Section (Step 2).
ELECTRIC PREHEATER ACCESSORY
Due to our policy of continuous product innovation, some specifications may change without notification.
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Sequence Setting
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