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CAUTION
Use clean water that meets local quality standards on the primary circuit.
The outdoor unit should be installed in an area with sucient airow according to the diagrams in the outdoor unit installation manual.
The hydrobox should be located inside to minimise heat loss.
Water pipe-runs on the primary circuit between outdoor and indoor unit should be kept to a minimum to reduce heat loss.
Ensure condensate from outdoor unit is piped away from the base to avoid puddles of water.
Remove as much air as possible from water circuit.
Never put batteries in your mouth for any reason to avoid accidental ingestion.
Battery ingestion may cause choking and/or poisoning.
If power to the hydrobox is to be turned o (or system switched o) for a long time, the water of DHW tank should be drained.
Do not drain the water in the primary circuit and do not turn o the power.
Preventative measures should be taken against water hammer, such as installing a Water Hammer Arrestor on the primary water circuit, as directed by the manu-
facturer.
In order to prevent condensation on emitters, adjust ow temperature appropriately and also set the lower limit of the ow temperature on site.
Before performing eld piping, be sure to t and tighten these two screws. Otherwise, the hook could be disengaged, and the unit could fall down.
As for the handling of refrigerant, refer to the outdoor unit installation manual.
[1] Cautions for service
(1) Perform service after recovering the refrigerant left in unit completely.
(2) Do not release refrigerant in the air.
(3) After completing service, charge the cycle with specified amount of refrigerant.
(4) If moisture or foreign matter might have entered the refrigerant piping during service, ensure to remove them.
(5) Please refer to the outdoor unit manual.
OCH815A
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