Daikin RWEYQ28PY1- User Manual

• Water cooled installation procedure • VRV ® Systems • Installation procedure 4 1 Installation of outdoor units 1 - 2 Introduction This installation manual concerns VRV® inverters of the Daikin RWEYQ-P series. These units are designed for indoor installation and used for cooling and heatpump applic...

• VRV ® Systems • Installation procedure 5 • Water cooled installation procedure 1 Installation of outdoor units 1 - 2 Introduction 1 - 2 - 3 Technical specifications (1) N OTES 1 Refer to the engineering data book for the complete list of specifications. 2 The normal cooling capacities are based on...

• Water cooled installation procedure • VRV ® Systems • Installation procedure 6 1 Installation of outdoor units 1 - 3 Selection of location This unit is not a type of specifications for outdoor installation. Always install it in a room. (machine room, etc.) Paying attention to the conditions mentio...

• VRV ® Systems • Installation procedure 7 • Water cooled installation procedure 1 Installation of outdoor units 1 - 3 Selection of location C AUTION 1 An inverter air conditioner may cause electronic noise generated from AM broadcasting. Examine where to install the main air conditioner and electri...

• Water cooled installation procedure • VRV ® Systems • Installation procedure 8 1 Installation of outdoor units 1 - 5 Unpacking and placing the unit • Make sure the area around the machine drains properly by setting up drainage grooves around the foundation. • Make sure the unit is installed level ...

• VRV ® Systems • Installation procedure 9 • Water cooled installation procedure 1 Installation of outdoor units 1 - 6 Water piping work • The water pressure resistance of water piping of this outside unit is 1.96 MPa. • The connection port for water piping is located in the front. The connection po...

• Water cooled installation procedure • VRV ® Systems • Installation procedure 10 1 Installation of outdoor units 1 - 7 Handling of the plate type heat exchanger C AUTION The brazing plate type heat exchanger (the plate type heat exchanger) is used for this outside unit. Because its structure is dif...

• VRV ® Systems • Installation procedure 11 • Water cooled installation procedure 1 Installation of outdoor units 1 - 7 Handling of the plate type heat exchanger 1 - 7 - 3 Daily service and maintenance 1 Management of water qualityThe plate type heat exchanger has a structure that does not permit di...

• Water cooled installation procedure • VRV ® Systems • Installation procedure 12 1 Installation of outdoor units 1 - 7 Handling of the plate type heat exchanger 1 - 7 - 5 Maintenance of plate type heat exchanger The performance of a plate type heat exchanger may decline due to scale accumulation. I...

• VRV ® Systems • Installation procedure 13 • Water cooled installation procedure 1 Installation of outdoor units 1 - 8 Field wiring C AUTION All field wiring and components must be installed by a licensed electrician and must comply with relevant local and national regulations.The field wiring must...

• Water cooled installation procedure • VRV ® Systems • Installation procedure 14 1 Installation of outdoor units 1 - 8 Field wiring 1 - 8 - 3 General • Up to 3 units can be connected by crossover power source wiring between outside units. For details, refer to the equipment design data and technica...

• VRV ® Systems • Installation procedure 21 • Water cooled installation procedure 1 Installation of outdoor units 1 - 8 Field wiring 1 - 8 - 4 Examples C AUTION <Precautions when laying power wiring> Use crimp-style terminals for connections to the power terminal block. When none are available...

• Water cooled installation procedure • VRV ® Systems • Installation procedure 22 1 Installation of outdoor units 1 - 9 Refrigerant piping C AUTION After completing installation, be sure to open the valve.(See 10-9-9 Additional refrigerant charge for details ) (Operating the unit with the valve shut...

• Water cooled installation procedure • VRV ® Systems • Installation procedure 24 1 Installation of outdoor units 1 - 9 Refrigerant piping 1 - 9 - 2 Protection against contamination when installing pipes • Take measures to prevent foreign materials like moisture and contamination from mixing into th...

• VRV ® Systems • Installation procedure 25 • Water cooled installation procedure 1 Installation of outdoor units 1 - 9 Refrigerant piping 1 - 9 - 4 Connecting the refrigerant piping Connect piping to outside unit by using accessory pipes 햲 Gas side piping 햳 (field supply) 햴 Gas side accessory pipe ...

• VRV ® Systems • Installation procedure 27 • Water cooled installation procedure 1 Installation of outdoor units 1 - 9 Refrigerant piping 1 - 9 - 5 Air tight test and vacuum drying The units were checked for leaks by the manufacturer. Confirm that the valves are firmly closed before Air tight test ...

• Water cooled installation procedure • VRV ® Systems • Installation procedure 28 1 Installation of outdoor units 1 - 9 Refrigerant piping 1 - 9 - 8 Additional refrigerant charge C AUTION Refrigerant cannot be charged until field wiring has been completed.Refrigerant may only be charged after perfor...

• VRV ® Systems • Installation procedure 31 • Water cooled installation procedure 1 Installation of outdoor units 1 - 9 Refrigerant piping 1 - 9 - 9 Shutoff valve operation procedure C AUTION Do not open the shutoff valve until 1-6 of “9-8 Checking of device and installation conditions” are complete...

• Water cooled installation procedure • VRV ® Systems • Installation procedure 32 1 Installation of outdoor units 1 - 9 Refrigerant piping 1 - 9 - 9 Shutoff valve operation procedure C AUTION 1 Do not damage the cap sealing. 2 Always use a charge hose for service port connection. 3 After tightening ...

• VRV ® Systems • Installation procedure 33 • Water cooled installation procedure 1 Installation of outdoor units 1 - 11 Test run C AUTION After completing installation, be sure to open the shutoff valve.(Operating the unit with the valve shut will break the compressor.) 1 - 11 - 1 Air discharge • R...

• VRV ® Systems • Installation procedure 35 • Water cooled installation procedure 1 Installation of outdoor units 1 - 11 Test run 1 - 11 - 4 Check of normal operation After the check operation is completed, operate the unit normally. (Heating is not possible if the outdoor temperature is 24°C or hig...