Honeywell SDC Service Manual page 259

SDC / DHC
Fault, 126
Maximum temperature limit, 130
Minimum temperature limit, 129
Reset, 135
Sensor control mode, 130
Start-up protection, 128
Heating circuit bus authorisation, 233
Heating circuit name, 181
Heating circuit pump extended running
time, 166
Heating circuits minimum temperature
limit, 130
Heating curve, 162, 163
Heating limit, 176
Heating system, 165
Hot water
Circuit switching differential, 192
Control mode, 154, 190
Maximum temperature, 190
Night-time temperature, 189
Pre-control, 151
Pre-regulator, 150
Quick connection in cascaded systems,
193
Hot-water
Control, 152
Production, 188
Hot-water loading mode stage II, 134
Hot-water tank
Loading, 188
Hydraulic buffer relief, 217
I
Indirect return increase, 162, 224
EN2H-0221GE51 R0812
L
Legionella protection, 189
Loading enabling, 192
Loading pump extended running, 193
M
Menu
Direct Heating Circuit, 173, 181
Mixed Heating Circuit, 181
Mixed Heating Circuits, 173
Minimum burner runtime, 131
O
OpenTherm, 140
Operating mode, 118
Operating states, 40
Operation with NTC 20K room
temperature sensor, 233
Outside temperature, 121, 122, 135
Outside temperature emergency operation
value, 121
Outside temperature sensing, 120
Overview of the technician parameters, 81,
119, 135
P
Parallel operation, 155, 190
Parallel operation based on weather
conditions, 191
Primary pump, 158
Extended running time, 158
Priority isolating circuit, 191
Priority mode, 190
Pump forced operation, 127
R
Reduced operation, 165
Relay/function test, 241
Reset, 77, 251
Return increase, 159
Index
259