The DATA Extra HIU, Installation Instructions DE2, 12th August 2021
Technical Data
Primary
Nominal primary supply temperature 85°C
Maximum primary supply temperature 90°C *
Minimum primary supply temperature 55°C **
Maximum primary differential pressure 250kPa
Minimum primary differential pressure 50kPa ***
Pressure class DH circuit PN16
Domestic Hot Water
Nominal DHW supply temperature 55°C
DHW Set Range 45°C to 60°C
Domestic Hot water heat exchanger (DHW) E8LAS40
Keep Warm Modes Economy / Comfort
Keep Warm Temperature 25°C to 60°C
Keep Warm Duration 0 to 120 mins or Always On
Max Return Temperature during Keep Warm Mode DHW Setpoint -2°C
DHW Max pressure 6 Bar
Pressure class DHW circuit PN10
DWH Priority Multi-Stage ****
Central Heating
Maximum flow temperature Primary T -5°C
Return Temp Limit Range 35°C to 55°C
CH Limit Range 30°C to 80°C
Central heating heat exchanger (CH) B25TH30
Pressure class CH circuit (3 bar safety valve) PN16
CH working pressure N/A (By Installer)
Nominal pump pressure 20 kPa (Adj. 0-70)
Maximum recommend flow rate 750 l/hr
General
Primary connections DN32 Female
Mains & DHW connections ¾” Female
Central heating connections ¾” Female
Casing width 653mm
Casing height 900mm
Casing depth 225mm
Casing Material Steel
HIU Insulation Material EPP Expanded Polypropylene
Pipework Insulation Material Grey Polyethylene Foam
Maximum Heat Losses <50W (1.2 kWh/day)
Weight (basic version) 35kg Approx
Electrical supply info 230V 50Hz - 0.64A
Power consumption per year circa 45kWh
Fuse ratings 3 Amp
Sensors NTC 10kohm @ 25°C
.* Maximum primary supply temperature 100°C for momentary spikes.
.** Minimum required DH supply temperature is DHW setpoint + 5°C with a minimum of 55°C.
.*** Depends on requested DHW output and available DH supply temperature.
.**** See Multi-Stage DHW Priority example below.
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