19Subject to change without notice | 83053500oUK | ait-deutschland GmbH
Performance data Values in brackets: (1 Compressor) LWD 50A/RX LWD 70A/RX
Heating capacity | COP for A7/W35 acc. to DIN EN 14511-x kW | COP
for A7/W45 acc. to DIN EN 14511-x kW | COP 6.50 | 3.62 8.80 | 3.66
for A2/W35 acc. to DIN EN 14511-x kW | COP 5.40 | 3.69 7.30 | 3.68
for A10/W35 acc. to DIN EN 14511-x kW | COP 7.20 | 4.80 9.70 | 4.92
for A-7/W35 acc. to DIN EN 14511-x
kW | COP 4.40 | 3.11 6.00 | 3.06
for A-15/W65 acc. to DIN EN 14511-x kW | COP – | – – | –
for A-7/W55 acc. to DIN EN 14511-x
Cooling capacity | EER for A35/W18 kW | EER
for A35/W7 kW | EER 5.10 | 2.89 7.00 | 2.74
Operating limits
Heating circuit return min. | Heating circuit flow max. Heating within heat source min./max. °C 20 | 62 20 | 62
Heating circuit return min. | Heating circuit flow max. Cooling within heat source min./max. °C 7 | 20 7 | 20
Heat source heating min. I max. °C -20 | 35 -20 | 35
Heat source cooling min. I max. °C 15 | 45 15 | 45
Additional operating points …
(only valid for indoor installation)
Room temperature min. I max. °C – | – – | –
Relative humidity maximum (non-condensing) % – –
Sound
Sound pressure level at 1 m distance from edge of unit inside min. | Night | max. dB(A) – | – | – – | – | –
Sound pressure level at 1 m distance from edge of unit outside min. | Night | max. dB(A) – | – | 45 – | – | 45
Sound power level inside min. | Night | max. dB(A) – | – | – – | – | –
Sound power level outside
1)
min. | Night | max. dB(A) – | – | 57 – | – | 57
Sound power level acc. to DIN EN 12102-1 inside | outside dB(A) – | 57 – | 57
Tonality | Low-frequency dB(A) | • yes – no – | – – | –
Heat source
Air flow rate at maximum external pressing | Maximum external pressure m³/h | Pa 3000 | – 3000 | –
Heating circuit
Flow rate (pipe dimensioning) I Min. volume buffer tank in series I Min. volume separation buffer tank l/h | l | l – | – | – – | – | –
Free pressing | Pressure loss | Flow rate bar | bar | l/h – | 0.066 | 1200 – | 0.055 | 1600
Max. allowable operating pressure bar 3 3
Circulation pump control range min. I max. l/h – | – – | –
Hot gas use
Flow rate (pipe dimensioning) l/h – –
Free pressing | Pressure loss | Flow rate bar | bar | l/h – | – | – – | – | –
General unit data
Data of the standards according to version EN14511-x I DIN EN 12102-1 2013 I 2017 2013 I 2017
Total weight kg 146 151
Weight of individual components kg | kg | kg – | – | – – | – | –
Max. allowable operating pressure refrigerating circuit high pressure I low pressure MPa (g) | MPa (g) 3.15 | 3.15 3.15 | 3.15
Refrigerant type | Refrigerant capacity … | kg R290 | 2.10 R290 | 2.20
Electrics
Voltage code | all-pole fuse protection for heat pump *)**) … | A – | – – | –
Voltage code | all-pole fuse protection for heat pump *) + electric heating element **) … | A – | – – | –
Voltage code | Control voltage fuse protection **) … | A – | – – | –
Voltage code | Electric heating element fuse protection **) … | A – | – – | –
HP*): effect. power consumption A7/W35 DIN EN 14511-x I Electric consumption I cosφ kW | A | … 1.50 | 3.20 | 0.66 2.00 | 4.10 | 0.71
HP*): max. machine current I max. power consumption within the operating limits A | kW 4.0 | – 5.5 | –
Starting current: direct | with soft starter A | A – | 20 – | 22
Degree of protection IP 24 24
Residual current circuit breaker if required type – –
Electric heating element output 3 | 2 | 1 phase kW | kW | kW – | – | – – | – | –
Circulation pump power consumption, heating circuit min. I max. W – | – – | –
Other unit information
Safety valve heating circuit | Response pressure included in scope of supply: • yes – no | bar – | – – | –
Buffer tank | Volume included in scope of supply: • yes – no | l – | – – | –
Heating circuit expansion vessel | Volume | Prepressure incl. in scope of supply: • yes – no | l | bar – | – | – – | – | –
Overflow valve | Changeover valve, heating - domestic hot water
integrated: • yes – no – | – – | –
Heating circuit vibration decoupling incl. in scope of supply or integrated: • yes – no – –
Controller I Heat quantity recording I Extension board incl. in scope of supply or integrated: • yes – no – | – | – – | – | –
813545b 813546b
*) compressor only, **) note local regulations 1) Indoor and outdoor installation
The performance data and the operating limits apply to clean heat exchangers l Index: n
Technical data / scope of deliveryLWD 50A/RX, LWD 70A/RX
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