Boiler house Level controls
2
Technical data BCR3250
Supply voltage
24 Vdc +/– 20%
Fuse
external 0.5 A (semi-delay)
Power consumption
5 W
1 five-wire connection to CP32/CP42 or three-wire connection to CP30/CP40 and two-wire connection to the CP10 (Drive+Sense bridged at controller) 1 two-wire Pt100 temperature sensor (range 0 - 250°C) 1 two-wire bottom blowdown valve switch
Inputs
1 two-wire bottom blowdown link (blowdown valve interlocking) 1 two-wire standby or burner connection (24Vdc +/– 20%, 10mA)
1 or 2 volt-free change-over contacts, 8 A 250 Vac/30 Vdc cos f = 1 (valve control) 2 volt-free change-over contacts, 8 A 250 Vac/30 Vdc cos f = 1, (MIN/MAX alarm) 1 analogue output 4-20 mA, max. load 500 ohm (actual value indication) Provide inductive loads with RC combinations according to manufacturer's specification to ensure interference suppression
Outputs
2.3 60
Data line
1 interface for data exchange with operating and display unit BHD50
1 tri-colour LED indicator (start-up = amber, power ON = green, malfunction = red) 1 code switch with four poles for configuration Housing material: base: polycarbonate, black; front: polycarbonate, grey Conductor size: 1 x 4,0 mm² solid per wire or 1 x 2.5 mm² per stranded wire with sleeve to DIN 46228 or 2 x 1.5 mm² per stranded wire with sleeve to DIN 46228 (min. Ø 0.1 mm) terminal strips can be detached separately Fixing of housing: Mounting clip on supporting rail TH 35, EN 60715 Pollution degree 2 for installation in control cabinet with protection IP 54, completely insulated
Indicators and adjustors
Housing
Electrical safety
Housing: IP 40 to EN 60529 Terminal strip: IP 20 to EN 60529
Protection
Weight
approx. 0.5 kg
Ambient temperature
when system is switched on: 0° ... 55 °C, during operation: –10 ... 55°C
–20 ... +80 °C (<100 hours), defrosting time of the de-energised equipment before it can be put into operation: 24 hours –20 ... +70 °C, defrosting time of the de-energised equipment before it can be put into operation: 24 hours
Transport temperature
Storage temperature
Relative humidity
max. 95%, no moisture condensation
Technical data BHD50
Supply voltage
24 Vdc +/– 20% internal automatic
Fuse
Power consumption
14.4 W
User interface 5" color display with capacitive touch screen, resolution 800 x 480 pixels, illuminated Communication interface RS232, RS422, RS485 and Ethernet 10/100Mb (USB for maintenance only) Data line For connection to a LCR2652 and BCR3250 (in parallel)
Front panel: 147x107 mm Panel cut-out: 136x96 mm Depth: 52 + 8 mm
Dimensions
Weight
approx. 1.3 kg
Front: IP 66 to EN 60529 Rear: IP 20 to EN 60529
Protection
1 power connector with 3 poles 1 D-SUB connector with 9 poles 2 Ethernet (10/100Mb) RJ45 connector 1 USB Port V2.0, max. 500 mA - for maintenance only 1 Serial connector with 8 poles
Electrical connection
TI-P693-21 EMM Issue 1
Page 2 of 5
BCR3250 BHD50 Blowdown Controller Operating and Display Unit
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