Daikin Altherma ERHQ011BAV3 Installation Manual

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Daikin Altherma ERHQ011BAV3 Installation Manual Manual pdf 7 page image

ERHQ011~016BAV3+W1 + ERLQ011~016CAV3+W1Outdoor unit for air to water heat pump4PW57794-1A – 05.2011Installation manual43. BEFORE INSTALLATION3.1. Scope of the manualThis manual describes the procedures for handling, installing andconnecting ERHQ and ERLQ units. This manual has been preparedto ensure adequate maintenance of the unit, and it will provide help ifproblems occur.3.2. Precautions for R410A■ The refrigerant requires strict cautions for keeping the systemclean, dry and tight.- Clean and dryForeign materials (including mineral oils or moisture) should beprevented from getting mixed into the system.- TightRead "9. Precautions on refrigerant piping" on page 12 carefullyand follow these procedures correctly.■ Since R410A is a mixed refrigerant, the required additionalrefrigerant must be charged in its liquid state. (If the refrigerant isin state of gas, its composition changes and the system will notwork properly).■ The connected indoor unit must be the EKHBH/X016 unitdesigned exclusively for R410A.3.3. Installation■ For installation of the indoor unit, refer to the indoor unitinstallation manual.■ Never operate the unit without the thermistors (R3T, R4T) orpressure sensors (S1NPH, S1PH), burning of the compressormay result.■ Be sure to confirm the model name and the serial no. of theouter (front) plates when attaching/detaching the plates to avoidmistakes.■ When closing the service panels, take care that the tighteningtorque does not exceed 4.1 N•m.3.4. Model identificationERLQ units include special equipment (insulation, bottom plateheater,...) to ensure good operation in areas where low ambienttemperature can occur together with high humidity conditions. In suchconditions the ERHQ models may experience problems with severeice build up on the aircooled coil. In case such conditions areexpected, the ERLQ must be installed instead. These models containcountermeasures (insulation, bottom plate heater,...) to preventfreeze up.3.5. Accessories■ Check if the following accessories are included with the unitSee the figure below for the location of the accessories.WARNINGSince maximum working pressure for ERHQ is 4.0 MPa or40 bar and for ERLQ is 4.17 MPa or 41.7 bar, pipes oflarger wall thickness may be required. Refer to paragraph"8.1. Selection of piping material" on page 12.ER H Q 011 AA V3V3=1~, 230 V, 50 HzW1=3N~, 400 V, 50 HzSeriesCapacity class (kW)Outdoor unit on R410AH=low water temperature – ambient zone (0°C~–10°C)L=low water temperature – ambient zone (–10°C~–20°C)Split outdoor pair heatpumpINFORMATION■ An ERLQ_CA outdoor unit can be connected to anEKHBH/X016* indoor unit (bottom plate heater atoutdoor unit is controlled by the outdoor pcb). Allfunctionalities related to domestic hot water of anERLQ_CA are only applicable in combination with anEKHBH/X016BB indoor unit.■ An ERHQ0*BA outdoor unit can be connected to anEKHBH/X016BB indoor unit or to an EKHBH/X016AA/AB/BA indoor unit (if a bottom plate heaterkit is required, see "Possible options" on page 5).Installation manual 1Cable tie 2Fluorinated greenhouse gaseslabel 1Multilingual fluorinatedgreenhouse gases label 1Screw (M4x12)(for ERLQ only) 1Thermistor fixing plate(for ERLQ only, spare) 1Thermistor fixture(for ERLQ only) 111 Accessories