Integral Heat Meter Display (If Fitted) - Bosch WORCESTER Greenstar HIU User Instructions

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Integral heat meter display (if fitted)

1 2
Fig. 2 Integral heat meter display
Item Description
1 Optical sensor
• Not used
2 Monthly value index
• When displayed, shows the month that the values on
the display are recorded for.
– Displays previous 1 - 18 months
3 Flow temperature
• Displays when showing flow temperature in service
level menu
4 Return temperature
• Displays when showing return temperature in
service level menu
5 Communication
• Not used
6 Service level
• Displays when in service level menu
Table 3
Greenstar HIU – 6 720 810 422 (2015/05)
3 4 5 6 7 8
Item Description
7 Cooling use
• Not used
8 Additional pulse input 1 & 2
• Not used
9 Impellor wheel in operation
• Displays when a demand is active
10 Units
• Displays units of measure
11 Navigation button
• Cycles through menu structure
Integral heat meter display (if fitted)
9 10 11
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