Operating Instructions and Installation Instructions

46
Installation - for contractors
15.6 
MTE 350 MTE 440 MTE 570 MTE 650
231003 231004 231216 232770

Rated voltage V 200 220 230 240 200 220 230 240 200 220 230 240 380 400
Rated output kW 2,7 3,2 3,5 3.8 3,3 4,0 4,4 4.8 4,3 5,2 5,7 6.2 5,9 6,5
Rated current A 13,3 14,5 15,2 15.8 16,7 18,2 19,1 20 21,6 23,6 24,7 25.8 15,5 16,3
Fuse A 16 16 16 16 20 20 20 20 25 25 25 32 16 20
Frequency Hz 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50 50
Phases 1/N/PE 1/N/PE 1/N/PE 2/PE
Specific resistance ρ
15
≥ (at ϑcold ≤25 °C) Ω cm 1000 1000 1000 1000
Specific conductivity σ
15
≤ (at ϑcold ≤25 °C) μS/cm 1000 1000 1000 1000
Specific resistance ρ
15
≥ (at ϑcold ≤50 °C) Ω cm 1300 1300 1300 1300
Specific conductivity σ
15
≤ (at ϑcold ≤50 °C) μS/cm 770 770 770 770
Max. mains impedance at 50 Hz Ω 0,091 0,083 0,079 0,076 0,072 0,065 0,063 0,06 0,056 0,051 0,049 0,047
Max. mains impedance at 380 V / 50Hz Ω 0,236
Max. mains impedance at 400V / 50Hz Ω 0,225
Connections
Water connection G 3/8 A G 3/8 A G 3/8 A G 3/8 A

Max. permissible pressure MPa 1 1 1 1
Max. inlet temperature for reheating °C 50 50 50 50

Max. permissible inlet temperature °C 60 60 60 60
Temperature setting range, DHW °C 30-50 30-50 30-50 30-50
ON l/min >1,5 >1,8 >2,2 >2,2
Pressure drop at flow rate MPa 0,05 0,06 0,07 0,07
Flow rate for pressure drop l/min 1,5 1,8 2,2 2,2
Flow rate limit at l/min 2,3 2,8 3,2 3,2
DHW delivery l/min 2,0 2,5 3,2 3,7
Δϑ at DHW delivery K 25 25 25 25