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DHC 23 TECHNICAL DATA
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Technical data
Control system Microprocessor control with analogue operation
Type designation DHC 23
Order designation DHC 23-1: One heating circuit, optionally one domestic hot water circuit
DHC 23-2: One mixed heating circuit, optionally one unmixed heating circuit,
or domestic hot water control
DHC 23-3: Nordic standard domestic hot water circuit with fast response
heat exchanger, optionally one heating circuit.
Construction Digital controller in impact-proof plastic housing, plug-in unit base with screw
terminals
Version Corresponding to DIN 32 729
Corresponding to draft AGFW Memorandum "Requirements on outside temperature
compensated control devices"
Controller type PI controller
Default switching times Heating times: daily 6.00 until 22.00
Domestic hot water availability: daily 6.00 until 22.00
Automatic preventive maintenance Heating circuit pump: daily 10.00, 1 min.
operation
Summer/winter time changeover Start of summer time: last Sunday in March, 2.00 (1 hour forwards)
Start of winter time: last Sunday in October, 3.00 h (1 hour back)
Supply voltage 230 V AC + 6 % ... -15 % 50...60 Hz
Power consumption 5 W
Data protection Individual data protection (eg. during power failure) by an exchangeable battery for up
2 years continuously, thereafter a maximum of 48 hours per year (at 20°C)
Protection standard IP 30 according to EN 60529
Protection class II according to EN 60730-1
Radio interference conformity
according to EN 50 081-1 and EN 50 082-1
Dimensions 192 x 96 mm (W x H according to DIN 43700) x 98 mm (D)
Control panel cut-out 186+1.1 x 92+0.8 mm
Weight approx. 950 g without packaging
Mounting Wall mounting or control panel front installation with control panel installation set ER 9
Terminals Screw terminals, max. cable cross-section 1.5 mm
2
Storage temperature -20°C...+65°C
Operating temperature 0...40°C
Relativet humidity 5...70 %
10878_BDA_DHC23_engl_neu 06.09.1999 13:51 Uhr Seite 29
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