Daikin EWAQ006BAVP Installation Manual

Also see for EWAQ006BAVP: Installer's reference guide Operation manual

Contents

Daikin EWAQ006BAVP Installation Manual Manual pdf 8 page image

4 InstallationInstallation manual8EWAQ+EWYQ006+008BAVPPackaged air-cooled water chillers and packaged air to water heatpumps4P478610-1 – 2017.021 Drill (a, 4×) and remove the knockout hole (b).ba b4× Ø6 mm2 Remove the burrs, and paint the edges and areas around theedges using repair paint to prevent rusting.4.2.4 To prevent the outdoor unit from fallingover1 Prepare 2 cables as indicated in the following illustration (fieldsupply).2 Place the 2 cables over the outdoor unit.3 Insert a rubber sheet between the cables and the outdoor unitto prevent the cable from scratching the paint (field supply).4 Attach the cable’s ends. Tighten those ends.4.3 Connecting the water piping4.3.1 To connect the water pipingNOTICEDo NOT use excessive force when connecting the piping.Deformation of the piping can cause malfunctioning of theunit. Make sure that the tightening torque does NOTexceed 30 N•m.To facilitate service and maintenance, 2 shut-off valves are provided.Mount the valves on the water inlet and on the water outlet. Mindtheir position: the integrated drain valves will only drain the side ofthe circuit on which they are located. To be able to only drain theunit, make sure the drain valves are positioned between the shut‑offvalves and the unit.a ba Water inletb Water outlet1 Screw the outdoor unit nuts on the shut-off valves.2 Connect the field piping on the shut-off valves.NOTICEInstall a manometer in the system.NOTICEInstall air purge valves at all local high points.4.3.2 To protect the water circuit againstfreezingIf negative outdoor temperatures are expected, add glycol to thewater circuit. The required concentration depends on the lowestexpected outdoor temperature, and on whether you want to protectthe system from bursting or from freezing. To prevent the systemfrom freezing, more glycol is required. Add glycol according to thetable below.INFORMATION▪ Protection against bursting: the glycol will prevent thepiping from bursting, but NOT the liquid inside thepiping from freezing.▪ Protection against freezing: the glycol will prevent theliquid inside the piping from freezing.Lowest expectedoutdoortemperaturePrevent fromburstingPrevent fromfreezing–5°C 10% 15%–10°C 15% 25%–15°C 20% 35%–20°C 25% —–25°C 30% —▪ The addition of glycol applies to BOTH cooling‑onlymodels (EWAQ006+008BAVP) AND reversible models(EWYQ006+008BAVP), and is independent of coolingor heating operation. ALWAYS add glycol if negativeoutdoor temperatures are expected.▪ The required concentration might differ depending onthe type of glycol. ALWAYS compare the requirementsfrom the table above with the specifications provided bythe glycol manufacturer. If necessary, meet therequirements set by the glycol manufacturer.▪ The added concentration of glycol should NEVERexceed 35%.▪ If the liquid in the system is frozen, the pump will NOTbe able to start. Mind that if you only prevent thesystem from bursting, the liquid inside might still freeze.▪ In case of a power supply failure or pump failure, andNO glycol was added to the system, drain the system.▪ When water is at standstill inside the system, thesystem is very likely to freeze and get damaged.The following types of glycol are allowed:▪ Ethylene glycol;▪ Propylene glycol, including the necessary inhibitors, classified asCategory III according to EN1717.WARNINGEthylene glycol is toxic.