© MHG Heating Ltd
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MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR
Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk
Web www.mhgheating.co.uk
010711
8.8 Hydraulic Design Single Unit (Option 9)
Electrical Connections Single Unit (Option 9)
Parameter # Parameters Description Default Proposed Change
H554 b3 Weather Compensation (1) / Constant Flow Temperature Operation
(0)
(E10 Error signal when outside air sensor is not installed.)
1 0
H558 b2 Hot Water Storage Sensor (0) / Hot Water Thermostat (1)
(E50 Error signal when sensor is not used.)
0 1
Second Heating Circuit Installed without 3 Way Valve and
Sensor
H554 b5 Mixed Flow Sensor Present (1) / No Mixed Flow sensor Present (0)
(E26 Error signal when sensor is not used.)
1 0
Second Heating Circuit Installed with 3 Way Valve and Sensor
No Alterations Required
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