Overview - Viessmann SCU224 User Manual

SCU224

Overview

• System-monitoring-display
• Up to 4 Pt1000 temperature sensors
• 2 semiconductor relays for pump speed control
• 10 basic system layouts to choose from
• Energy metering
• VBus
®
• Function control
• Thermostat function (time controlled)
• Control of the system by ServiceCenter soft-
ware possible
• User-friendly operation
• Housing with outstanding design
• Extra-low power consumption
Included with the SCU224:
1 × SCU224
1 × accessory bag
1 × spare fuse T4A
2 × screws and wall plugs
4 × strain relief and screws
1 × manual
Additionally enclosed in the full kit:
2 × sensor FKP6
2 × sensor FRP6
Technical data
Housing: plastic, PC-ABS and PMMA
Protection type: IP 20 / EN 60529
Ambient temp.:
32 ... 104 °F
[0 ... 40 °C]
Size:
6.8" × 4.3" × 1.9"
172 × 110 × 46 mm
Mounting: wall mounting, mounting
into patch-panels is possible
Display: System screen for system
visualization, 16-segment display, 7-seg-
ment display, 8 symbols for system
status and operating control lamp
2.6"
66 mm
4.3"
110 mm
Operation: by 3 push buttons at the
front of the housing
Functions: Differential temperature
controller with optional add-on system
functions. Func ti on con trol, operating
hours counter for solar pump, eva-
cuated tube collector function, pump
speed control, thermostat function,
drainback and booster option, and
energy metering.
Inputs:
for 4 Pt1000 temperature sensors
Outputs: 2 semiconductor relays
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$
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0.4" / 11 mm
0.5" / 13 mm
1.9" / 47 mm
Bus: VBus
®
Power supply:
100 ... 240 V~
Standby power consumption:
< 1 W
Switching capacities:
R1: 1 (1) A 100 ... 240 V~
(semiconductor relay)
R2: 1 (1) A 100 ... 240 V~
(semiconductor relay)
3
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