About this operating manual 1.3 Symbols and markings Identification of warnings This operating manual is part of the unit. ► Before working on or with the unit read the Symbol Meaning operating manual carefully and follow it for all Safety-relevant information. activities at all times, especially the warnings and Warning of physical injuries.
Only qualified, skilled personnel is able to carry out are kept up-to-date: the work on the unit safety and correctly. Interference by unqualified personnel can cause life-threatening ● Germany: www.alpha-innotec.de injuries and damage to property. ● www.alpha-innotec.com ► Ensure that the personnel is familiar with the local regulations, especially those on safe and hazard- aware working.
Injury due to moving parts Improper action ► Switch device on only with air flow baffles fitted. Requirements for minimum scale and corrosion damage in hot water heating systems: Injuries and environmental damage due to ● Proper planning, design and commissioning refrigerant ● Closed system with regard to corrosion The unit contains harmful and environmentally ●...
Description 3.2 Layout Basic components 3.1 Delivery condition NOTE Packing unit 1: This section essentially names the compo- nents relevant for fulfilling the tasks described in this operating manual. Air flow baffles (quantity of 2, each in a separate box) Packing unit 2: 1 Fan 2 Water connection side: Hydraulic connections and junction box for mains connection (each inside the unit) 3 Area behind the facing panel: cooling circuit components with condenser,...
3.4 Function Nameplates Nameplates are attached to the following places on Liquid refrigerant is evaporated (evaporator), the energy the unit when it is delivered: for this process is environmental heat and comes from the outside air. The gaseous refrigerant is compressed ●...
Scope of supply, storage, The hydraulic connections are not designed for me- chanical loads. transport and installation ► Do not lift or transport the unit by the hydraulic connections. IMPORTANT ► Transport the unit to the place of installation pack- Damage to the housing and the unit components aged and secured on the wooden pallet.
Set up the unit IMPORTANT Guide lifting straps past the fan on the side. Make sure the straps do not press against the fan during CAUTION transport. In the air outlet area the air temperature is approx. 5 K below the ambient temperature. Park the unit at the installation site so that the up- Under certain climatic conditions, an ice lay- per edge of the wooden pallet is flush with the up-...
5.5 Attaching the air flow baffles Push the unit from the wooden pallet onto the foundation (possibly with the help of pipes placed under the appliance). Make sure that the frame of CAUTION the unit is in full contact with the foundation. Unit has rotating parts. For safety reasons, mount the two air flow baffles on the unit before continuing with any other work.
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4.2. Bolt air flow baffles to the frame on the switch box side and water connection side. Example: Removing the upper facing panel on the switch box side Example: Screw the air flow baffle on the fan The top cover of the unit was fastened by the up- side per facing panels. After removal of the upper fac- ing panels, the top cover is loose.
Installation of hydraulic system Install the outside pipes of the heating circuit be- neath the frost line. Flush the heating circuit thoroughly before con- necting it to the heating system. IMPORTANT Damage to the copper pipes due to unacceptable loading! ►...
Pressure relief 10 Domestic hot water preparation Equip the heating circuit in accordance with local standards and directives with a safety valve and Domestic hot water heating with the heat pump re- an expansion tank. quires an additional hot water circuit, parallel to the Install filling and emptying devices, shut-off devic- heating circuit.
12 Electrical installation Connect power cable to power supply. IMPORTANT 12.1 Establishing the electrical If using the unit in 3~230V systems, please note connections that the residual-current circuit breaker (RCCB) used must be AC-DC sensitive. IMPORTANT Heat pump side connection of the control Irreparable damage to the compressor due to wrong and sensor wires rotary field!
13 Flushing, filling and venting Screw facing panels onto the heat pump. Place lower facing panels diagonally into the frame, close at top and fasten with in quick-re- 13.1 Heating water quality lease screws. NOTE ● For detailed information refer, among other things, to the VDI Guidelines 2035 “Vermeidung Schäden...
15 Set the overflow valve 13.2 Flush, fill and vent the heating circuit Outlet pipe of the safety valve is connected. NOTE Ensure that the set pressure of the safety valve is ● The activities in this section are only not exceeded. necessary for the integration of storage tanks in series Vent system at the respective highest point.
16 Commissioning 17 Maintenance CAUTION NOTE Prior to commissioning the unit, the air We recommend that you conclude a mainte- flow baffles must be mounted and the fac- nance agreement with an accredited heating ing panels closed. company. Relevant planning & design data of the system is 17.1 Basic principles ...
19 Dismantling and disposal Check evaporator and condensate pan and clean if required Unit is safely disconnected from the power sup- 19.1 Dismantling ply and secured against being switched back on Unit is safely disconnected from the power sup- ...
LW 300A Technical data / scope of supply Performance data Values in brackets: (1 Compressor) LW 300A Heating capacity | COP for A7/W35 acc. to EN14511 kW | COP 32,50(19,78)|3,80(4,04) for A7/W45 acc. to EN14511 kW | COP 33,64(18,99)|3,20(3,23) for A2/W35 acc. to EN14511 kW | COP 29,67(16,97)|3,41(3,52) for A10/W35 acc.
LW 300A Dimensional drawings 1779 1258 Keys: UK819326b All dimensions in mm. Front view Side view Plan view (Section, without façade and shrouds) Heating water outlet (flow) R 1 1/2" Heating water inlet (return) R 1 1/2" Condensate hose, outside-Ø 36x3 Baseplate Air direction Ä Ä Ä Ä Subject to change without notice | 83031200dUK | ait-deutschland GmbH Zust.
Installation plan LW 300A 2 3 4 >2000 ≥1500 ≥3000 ≥5350 Keys: UK819327 All dimensions in mm. Front view Top view ≥ … Minimum clearances ≥ ... Recess in base Local heat pipe for heating water forward/return flow Empty pipe for electric cables, minimum diameter 70mm Condensate discharge, minimum diameter 50mm Water-permeable surface (gravel, …) in the air outlet area Base Air direction...
LW 300A Installation plan Cascade 1/2 Keys: UK819512 ≥1500 ≥3000 All dimensions in mm. Top view Air direction Zust. Ände A maximum of two sides may be closed along the dash two-point line. Subject to change without notice | 83031200dUK | ait-deutschland GmbH...
Installation plan Cascade 2/2 LW 300A ≥1350 1258 ≥1350 1258 ≥1350 Keys: UK819512 All dimensions in mm. Top view Air direction A maximum of two sides may be closed along the dash two-point line. Subject to change without notice | 83031200dUK | ait-deutschland GmbH...
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