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10 Technical data
2016/07
99640x6xx-mub-de – V08
25
10
Technical data
Dimensions
FriwaMidi
FriwaMaxi
Height (with insulation)
795 mm
Width (with insulation)
602 mm
Depth (with insulation)
298 mm
Centre distance top
120 mm
Centre distance bottom
100 mm
Pipe connections
Primary circuit (buffer tank circuit)
1½" external thread
2" external thread
Secondary circuit (domestic hot water
circuit)
1" external thread,
flat sealing
1¼" external thread,
flat sealing
Secondary circuit (circulation)
1" external thread, flat sealing
Operating data
Maximum admissible pressure
primary: 3 bars, secondary: 10 bars
Operating temperature
2 – 95 °C
Equipment
Check valve
2 x 200 mm wc
2 x 400 mm wc
Primary pump
High-efficiency pump with
PWM control, 3-70 W
High-efficiency pump with
PWM control, 6-140 W
Secondary pump
(optional)
High-efficiency pump with
PWM control, 5-63 W
(optional)
High-efficiency pump with
PWM control, 5-63 W
Heat exchanger
40 plates
60 plates
Flow rate sensor
FlowSonic,
measuring range:
1-133 l/min
FlowSonic,
measuring range:
1-133 l/min
Temperature sensor
3 x Pt1000, rapid
4 x Pt1000, rapid
Materials
Valves and fittings
Brass
Gaskets: o-rings
Klingersil / EPDM
Flat sealings
AFM 34, asbestos-free
Plate heat exchanger
Stainless steel 1.4401 / solder: 99.99% Cu
Insulation
EPP
Check valve
Brass