3ENGLISHSafety precautionsCalifornia Proposition 65 Warning (US)WARNING : Cancer and Reproductive Harm - www P65Warnings ca govBefore installing an DVM Hydro unit / Hydro unit HT please read this manual thoroughly to ensure that you know how tosafely and efficiently install a new applianceStore the Operation and Installation in a safe location and remember to hand it over to the new owner if the Product is soldor transferred❋ This product uses R-410A and R-134a (Hydro unit HT) refrigerant- When using R-410A and R-134a(Hydro unit HT), moisture or foreign substances may affect the capacity and reliabilityof the product Safety precautions must be taken when installing the refrigerant pipe- The designed maximum pressure of the system is 4 1 MPa (594 7 psi) Select appropriate material and thicknessaccording to the regulations- R-410A and R-134a(Hydro unit HT) are a quasi-azeotrope of two refrigerants Make sure to charge with liquid phasewhen filling refrigerant (If you charge vapor refrigerant, it may affect the capacity and reliability of the product as aresult of a change in the blend of the refrigerant )❋ You must connect the outdoor unit for R-410A refrigerant❋ This product uses a plate type heat exchanger Extra care must be taken when choosing the installation location as itrequires water pipes❋ A closed type water circuit system must be applied for system protection and reliabilityBefore installation, read the ‘Severe warning signs’ and the ‘Caution signs’ thoroughlyManufacturer is not responsible for accidents due to incorrect installation (user will be responsible for any service chargesthat may occur)Manufacturer is not responsible for any product problems that may occur due to incorrect water pipe installationMaintain the water temperature and the amount of water flow within operational range Manufacturer is not responsible ifthe heat exchanger freezes and ruptures due to incorrect installationThis product is a PARTIAL UNIT AIR CONDITIONER, complying with PARTIAL UNIT requirements of this Standard, and mustonly be connected to other units that have been confirmed as complying to corresponding PARTIAL UNIT requirements ofthis Standard, UL 60335-2-40/CSA C22 2 No 60335-2-40, or UL 1995/CSA C22 2 No 236WARNING Hazards or unsafe practices that may result in severe personal injury or death.CAUTION Hazards or unsafe practices that may result in minor personal injury or property damage.