2
Technical data
2.1 Unit data
Series
EFS 35
EFS 50
Operating data
Maximum permitted pressure, primary
bar
3
Maximum permitted pressure, secon-
dary
bar
10
Operating temperature
°C
2-95
Pipe connections
Primary circuit (tank circuit)
Inches
1 1/2" OT
2" OT
Secondary circuit (domestic water cir-
cuit)
Inches
1" OT
1 1/4" OT
Equipment
Gravity brake
mmWS
2 x 200
2 x 400
Primary pump
HE pump with PWM control
W
4-70
6-140
Circulation pump
(optional) HE pump with PWM control, 5-63 watts
Heat exchanger
40 Plates
60 Plates
Medium flow rate probe
(for technical data, see extra table)
FlowSonic, measurement range: 1-133 l/min
Temperature sensor
Pt 1000, fast
Materials
Valves
Brass
Seals: O-rings
Klingersil/EPDM
Flat seals
AFM 34, asbestos-free
Plate heat exchanger
Stainless steel 1.4400/solder: 99.99% Cu
Insulation
EPP
Gravity brake
Brass
Dimensions
Height (with insulation)
mm
795
Width (with insulation)
mm
602
Depth (with insulation)
mm
298
Top axis-centre distance
mm
120
Bottom axis-centre distance
mm
100
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