Daikin EF series User Manual Download | Manualshive

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© 2008

Daikin

Applied

Installation and Maintenance Manual

IM 902

Daikin

Direct Expansion (DX) Cooling

Coils

Types EN, EF, ER, EJ, EK

Group:

Applied Air

Part Number:

IM 902

Date:

February 2008

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Summary of Contents for EF series

Page 1: ... 2008 Daikin Applied Installation and Maintenance Manual IM 902 Daikin Direct Expansion DX Cooling Coils Types EN EF ER EJ EK Group Applied Air Part Number IM 902 Date February 2008 ...

Page 2: ...d Identification Information 3 Receiving Instructions 3 Coil Types 3 Model EN 3 Model EF 3 Model ER 3 Model EJ 3 Model EK 3 Nomenclature 4 Installation 5 Mounting 5 Installation 5 Operation and Maintenance 7 Operation 7 General 7 Maintenance 7 General 7 ...

Page 3: ...ired Model EN Figure 1 evaporators utilize dual suction connections when multiple distributors are used Model EF Face control model EF Figure 1 is another evaporator coil option offered Face control is the simplest form of capacity control These coils are normally furnished with two distributors and two suction connections offering 50 capacity reduction capabilities Model ER Daikin offers a row co...

Page 4: ...be O D Coil Type Circuiting 3 3 8 4 1 2 5 5 8 E Evaporator N Normal F Face Control R Row Control J Interlaced K Interlaced Face Control Finned Length inches Finned Height inches Rows Deep Fins Per Inch Fin Design A flat AI Cu B corrugated AI Cu C sine wave AI Cu F flat SS CS ...

Page 5: ...ed to be relocated into the hot gas bypass assembly Figure 3 4 All field brazing and welding should be performed using high quality materials and an inert gas purge such as nitrogen to reduce oxidation of the internal surface of the coil Figure 2 Distributor Figure 3 Hot Gas Bypass Kit 5 If a hot gas bypass kit was ordered with the coil install it now refer to Figure 4 for a general installation d...

Page 6: ...n likely one or more small leaks which should be located and repaired Pressure losses greater than 5 psi would indicate a larger leak which should be isolated and repaired Be sure to check valves and fittings as potential sites for leakage or bleed If the coil is found to be leaking contact your local Daikin coil representative Note Unauthorized repair of the coil may void the coil s warranty see ...

Page 7: ...w hot coils to cool before applying f Using plain water wet both the coil as well as the area surrounding the equipment Wetting the coil with water aids in product penetration and performance g Apply properly diluted product to coil surface Whenever possible apply solution from the outlet side of the coil Allow solution to remain on surface normally 5 10 minutes Do not allow solution to dry on the...

Page 8: ...raining or call 540 248 9646 and ask for the Training Department Warranty All Daikin equipment is sold pursuant to its standard terms and conditions of sale including Limited Product Warranty Consult your local Daikin Representative for warranty details Refer to Form 933 43285Y To find your local Daikin Representative go to www DaikinApplied com This document contains the most current product info...

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