© MHG Heating Ltd
28
MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR
Telephone 08456 448802 Fax 08456 448803 Email
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