Lennox AAH041 Application Manual Download Page 4

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AQUA

–AGU-1405-E

- 2 -

MODEL NUMBER DESCRIPTION

The AQUA

units are identified by the following codes: Example AAH081MS

AQUA

Air Cooled

Heat Pump

Nominal Cooling capacity x10 [kW] (ex.: 08 = 80 kW)

1 = 2 compressors / 2 circuits
4 = 4 compressors / 2 circuits

M= 2 pipes
P= 4 pipes

S= standard noise level
L= Low noise level

Summary of Contents for AAH041

Page 1: ...lennoxemeia com AQUA4 AAH APPLICATION GUIDE Polyvalent air cooled heat pump 50 330 kW AQUA4 AGU 1405 E...

Page 2: ......

Page 3: ...5 4 8 CONTROL AND COMMUNICATION 6 5 OPTIONS AND ACCESSORIES 7 6 APPLICATION 10 7 OPERATING COMBINATION DEPENDING ON THE THERMAL LOAD 14 8 OPERATING LIMITS 16 9 TECHNICAL DATA PERFORMANCES 17 10 OVERVI...

Page 4: ...ts are identified by the following codes Example AAH081MS A AQUA4 A Air Cooled H Heat Pump 08 Nominal Cooling capacity x10 kW ex 08 80 kW 1 1 2 compressors 2 circuits 4 4 compressors 2 circuits M M 2...

Page 5: ...ecovery at any conditions Advanced programmable pCO1 with a local control interface PGD1 Secure operating map as standard Winter cooling operation down to 15 C ambient Heating operation down to 10 C a...

Page 6: ...er tubes and aluminum fins coils with hydrophilic coating Grouved water connections Victaulic type Paddle water flow switch Low noise version Low speed on fan with sound insulation of the entire techn...

Page 7: ...amount of sound emissions Process optimisation along with a carefully selected intrinsic volumetric compression ratio RVI clearly improves the isentropic compression performance and reduces energy los...

Page 8: ...t is possible to customise the software to meet all system requests These include cascade management of the units with step control or cascade logic The microprocessor on board the unit controls the v...

Page 9: ...low static pressure with expansion vessel and safety valve The two pumps operating simultaneously in parallel Hydraulic module with high pressure twin pumps parallel operating Dual pumps providing hi...

Page 10: ...nging settings It can be located up to a maximum of 50 meters from the unit with a standard telephone cable and up to a maximum of 200 meters from the unit with a shielded cable Control interface Modb...

Page 11: ...tside air chilled water return or zone temperature Pressure gauges LP HP Reading low and high pressures with gauges Filter dryer maintenance kit This kit includes one solenoid valve and ball valve per...

Page 12: ...ing on the operating mode The 4 pipe configuration includes hot water supply with the corresponding return lines and cold water with the corresponding return lines simultaneously Operating modes avail...

Page 13: ...AQUA4 AGU 1405 E 11 Example of 2 pipe installation for Hotel and Hospital...

Page 14: ...provision of hot and cold water simultaneously Circuit 1 Production of cold water for cooling Circuit 2 Hot water production or total heat recovery for heating or preheating hot water for example Coo...

Page 15: ...n inertial tank with double cycle inversion on demand for winter and summer air conditioning in combination with a 2 pipe heating system The double cycle inversion valve automatically controlled by on...

Page 16: ...ling o 100 Heating o 50 Heating o 100 Cooling 50 to 100 DHW o 50 Cooling 50 to 100 DHW o 50 Heating 50 DHW o 100 DHW o 50 DHW o 100 DHW o 50 DHW AQUA M 2 pipe units 4 compressors 2 thermodynamic circu...

Page 17: ...circuits All the year Summer to winter o 100 Cooling o 75 Cooling o 50 Cooling o 25 Cooling o 100 Cooling 50 to 100 Heating o 75 Cooling 25 to 75 Heating o 50 Cooling 25 to 100 Heating o 25 Cooling 2...

Page 18: ...cause an incorrect distribution or heat transfer in a non turbulent or not fully turbulent flow For temperature differentials outside these limits contact the company s technical department for advise...

Page 19: ...n calculate performances in the concurrent mode referring to manual or selection software performances all expressed in countercurrent at a water temperature that is 3 C lower For example performances...

Page 20: ...AQUA4 AGU 1405 E 18 Nb of compressor 2 2 2 2 2 4 4 4 4 4 4 4 4 4 4 4...

Page 21: ...ad Pump s HP single or normal backup switching option kPa 179 169 188 177 183 Available pressure head Twin pumps LP parallel operating option kPa 119 111 107 95 101 Available pressure head Twin pumps...

Page 22: ...Number of fans 4 4 6 6 6 Air flow m3 h 21379 21379 30913 30913 30913 Absorbed power of fans kW 1 2 1 2 1 8 1 8 1 8 Absorbed current of fans A 4 4 4 4 6 6 6 6 6 6 Sound power level Lw db A 79 79 80 80...

Page 23: ...ressure head Pump s HP single or normal backup switching option kPa 168 156 163 143 141 229 Available pressure head Twin pumps LP parallel operating option kPa 135 123 111 92 92 118 Available pressure...

Page 24: ...f fans 8 8 6 6 6 6 Air flow m3 h 41340 41340 72700 72700 67672 67672 Absorbed power of fans kW 2 3 2 3 6 3 6 3 6 3 6 3 Absorbed current of fans A 8 8 8 8 15 15 15 15 Sound power level Lw db A 81 81 81...

Page 25: ...re head Pump s HP single or normal backup switching option kPa 175 258 256 227 199 Available pressure head Twin pumps LP parallel operating option kPa 90 147 149 124 100 Available pressure head Twin p...

Page 26: ...03511 97902 97902 Absorbed power of fans kW 6 3 6 3 8 4 8 4 8 4 Absorbed current of fans A 15 15 20 20 20 Sound power level Lw db A 86 86 87 87 87 Sound pressure level Lp 10 m Q 2 db A 58 58 59 59 59...

Page 27: ...5 89 83 82 75 69 67 86 58 274 85 89 83 82 75 69 67 86 58 294 86 90 84 83 76 70 68 87 59 324 86 90 84 83 76 70 68 87 59 Spectrum per octave band dB A Maximum global sound power Maximum sound pressure a...

Page 28: ...ackup switching operation Available Head pressure kPa for AAH041 S pumps parallel operation Pure water flow rate l h Pure water flow rate l h abs nom power LP 1 1 kW abs nom power HP 1 5 kW abs nom po...

Page 29: ...nom current LP 2 7 A abs nom current HP 2 7 A Available Head pressure kPa for AAH071 S pumps single or normal backup switching operation Available Head pressure kPa for AAH071 S pumps parallel operati...

Page 30: ...current LP 2 7 A abs nom current HP 2 7 A Available Head pressure kPa for AAH094 S pumps single or normal backup switching operation Available Head pressure kPa for AAH94 S pumps parallel operation Pu...

Page 31: ...nt LP 2 5 A abs nom current HP 3 2 A Available Head pressure kPa for AAH124 S pumps single or normal backup switching operation Available Head pressure kPa for AAH124 S pumps parallel operation Pure w...

Page 32: ...t LP 2 5 A abs nom current HP 4 8 A Available Head pressure kPa for AAH164 S pumps single or normal backup switching operation Available Head pressure kPa for AAH164 S pumps parallel operation Pure wa...

Page 33: ...t LP 3 4 A abs nom current HP 4 8 A Available Head pressure kPa for AAH194 S pumps single or normal backup switching operation Available Head pressure kPa for AAH194 S pumps parallel operation Pure wa...

Page 34: ...t LP 4 8 A abs nom current HP 6 8 A Available Head pressure kPa for AAH274 S pumps single or normal backup switching operation Available Head pressure kPa for AAH274 S pumps parallel operation Pure wa...

Page 35: ...t LP 4 8 A abs nom current HP 6 8 A Available Head pressure kPa for AAH324 S pumps single or normal backup switching operation Available Head pressure kPa for AAH324 S pumps parallel operation Pure wa...

Page 36: ...m current LP 2 5 A abs nom current HP 3 2 A abs nom current LP 2 7 A abs nom current HP 2 7 A Available Head pressure kPa for AAH051 L pumps single or normal backup switching operation Available Head...

Page 37: ...t LP 2 7 A abs nom current HP 2 7 A Available Head pressure kPa for AAH071 L pumps single or normal backup switching operation Available Head pressure kPa for AAH071 L pumps parallel operation Pure wa...

Page 38: ...t LP 2 7 A abs nom current HP 2 7 A Available Head pressure kPa for AAH094 L pumps single or normal backup switching operation Available Head pressure kPa for AAH094 L pumps parallel operation Pure wa...

Page 39: ...nt LP 2 5 A abs nom current HP 3 2 A Available Head pressure kPa for AAH124 L pumps single or normal backup switching operation Available Head pressure kPa for AAH124 L pumps parallel operation Pure w...

Page 40: ...t LP 2 5 A abs nom current HP 4 8 A Available Head pressure kPa for AAH164 L pumps single or normal backup switching operation Available Head pressure kPa for AAH164 L pumps parallel operation Pure wa...

Page 41: ...t LP 3 4 A abs nom current HP 4 8 A Available Head pressure kPa for AAH214 L pumps single or normal backup switching operation Available Head pressure kPa for AAH214 L pumps parallel operation Pure wa...

Page 42: ...t LP 4 8 A abs nom current HP 6 8 A Available Head pressure kPa for AAH274 L pumps single or normal backup switching operation Available Head pressure kPa for AAH274 L pumps parallel operation Pure wa...

Page 43: ...t LP 4 8 A abs nom current HP 6 8 A Available Head pressure kPa for AAH324 L pumps single or normal backup switching operation Available Head pressure kPa for AAH324 L pumps parallel operation Pure wa...

Page 44: ...AQUA4 AGU 1405 E 42 11 Overview Diagrams AAH PS PL MS ML 041 and 051 Box F1 AAH PS PL MS ML 061 071 and 081 Box F2...

Page 45: ...AQUA4 AGU 1405 E 43 AAH PS PL MS ML 094 and 104 Box F3 AAH PS PL MS ML 124 144 164 and 194 Box F4...

Page 46: ...AQUA4 AGU 1405 E 44 AAH PS PL MS ML 214 and 244 Box F5 AAH PS PL MS ML 274 294 and 324 Box F6...

Page 47: ...must be taken to avoid abrupt or violent manoeuvres Be very careful when transporting it inside rooms Do not use the unit components as anchors The unit should be lifted with 1 GAS steel pipes at leas...

Page 48: ...may affect unit performance or interrupt normal operation For this reason provide the following clearances see figure on this page hydraulic connections back side at least 1 meter to provide room for...

Page 49: ...vided in the dimensional tables and overall drawings The ON OFF type compressors work intermittently since the cooling power required by the utility is not generally the same as that supplied by the c...

Page 50: ...Enable the REMOTE function with the electric panel switch Remote Summer Winter switching AQUA4 M Versions To remotely switch the unit from the summer to the winter modes remove the jumper between the...

Page 51: ...circuit R410A 29 bar r Power supply voltage 10 compared to plate voltage Maximum storage T 50 C Minimum storage T 20 C limit set by on board electronics this value can only be reached during storage...

Page 52: ...D BELGIUM AND LUXEMBOURG FRANCE GERMANY ITALY NETHERLANDS POLAND PORTUGAL Due to Lennox s ongoing commitment to quality the specifications ratings and dimensions are subject to change without notice a...

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