Operating Instructions and Installation Instructions

40
Installation - for contractors
MTH 350 MTH 440 MTH 570 MTH 350 UTE MTH 350 UT MTH 350 OT
Specific resistance ρ
15
≥
(at ϑcold >25 °C)
Ω cm 1100 1100 1100 1100 1100 1100
Specific conductivity σ
15
≤
(at ϑcold >25 °C)
μS/cm 909 909 909 909 909 909
Application limits
Max. throughput l/min 2,3 2,7 3,5 2,3 2,3 2,3
Max. permissible pressure MPa 0 0 0 0 0 0
Values
Max. permissible inlet tem-
perature
°C 35 35 35 35 35 35
ON l/min >1,6 >2,0 >2,6 >1,6 >1,6 >1,6
Pressure drop at flow rate MPa 0,05 0,06 0,08 0,05 0,05 0,05
Flow rate for pressure drop l/min 1,6 2,0 2,6 1,6 1,6 1,6
Flow rate limit at l/min 2,2 2,8 4,3 2,2 2,2 2,2
DHW delivery l/min 2,0 2,5 3,2 2,0 2,0 2,0
Δϑ at DHW delivery K 25 25 25 25 25 25
Hydraulic data
Rated capacity l 0,1 0,1 0,1 0,1 0,1 0,1
Versions
Oversink installation X X X X X X
Undersink installation X X X X X X
Open vented type X X X X X X
IP-Rating IP25 IP25 IP25 IP25 IP25 IP25
Protection class 1 1 1 1 1 1
Insulation block Plastic Plastic Plastic Plastic Plastic Plastic
Heating system heat gen-
erator
Bare wire Bare wire Bare wire Bare wire Bare wire Bare wire
Cap and back panel Plastic Plastic Plastic Plastic Plastic Plastic
Colour white white white white white white