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5.5 Emergency mode (Heater only operation)
The emergency mode is available when a failure on the outdoor unit of the heat pump or a communication error occurs.
This mode uses booster heater or immersion heater as a heat source and automatically controls between the DHW mode and the heating mode. When the system is not
incorporated with heater, the emergency mode is not available.
Before starting the emergency mode, turn off the outdoor unit and FTC (Main), and then turn Dip SW 4-5 to ON. Then, turn on FTC (Main) to start the emergency mode.
FTC (Main) can be power-supplied by the outdoor unit or directly by power source.
If emergency mode is no longer required, please turn off both outdoor and indoor unit power supply before returning Dip SW4-5 to OFF position.
5. Dip Switch setting
5.6 Emergency mode (Boiler operation)
The emergency mode is available when a failure on the outdoor unit of the heat pump or a communication error occurs.
This mode uses boiler as a heat source and automatically controls the heating mode. When the system is not incorporated with boiler, the emergency mode is not available.
Before starting the emergency mode, turn off the outdoor unit and FTC (Main), and then turn Dip SW 4-6 to ON. Then, turn on FTC (Main) to start the emergency mode.
FTC (Main) can be power-supplied by the outdoor unit or directly by power source.
If emergency mode is no longer required, please turn off both outdoor and indoor unit power supply before returning Dip SW4-6 to OFF position.
5.7 Indoor unit only operation (during installation work)
In the case when DHW or heating operation is required prior to connection of the outdoor unit; i.e. during installation work, an electric heater in indoor unit (*1) can be used.
*1 Model with electric heater only.
*2 Not available during Multiple outdoor unit control.
1. To start operation
● Check if the indoor unit power supply is OFF, and turn DIP switch 4-4 and 4-5 ON.
● Turn ON the indoor unit power supply.
2. To end operation*
● Turn OFF the indoor unit power supply.
● Turn DIP switch 4-4 and 4-5 OFF.
*When the indoor unit only operation is ended, ensure to check over the settings after outdoor unit is connected.
Note:
Prolonged running of the this operation may affect the life of the electric heater.
Summary of Contents for PAC-SIF051B-E
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