121
M
Main PCB.....................................51, 52
Maintenance......................................76
Max. Flow temperature............112, 113
Message and safety connections.......60
Min. flow rate............................112, 113
Min. Flow temperature.............112, 113
Minimum clearances..........................15
Minimum flow rate..............................47
Minimum room volume.......................15
Minimum system pressure.................78
N
Ni 500.................................................93
Noise..................................................94
Noise volume.....................................94
O
ON/OFF switch..................................80
On-site connections...........................19
Opening non-return valves.................78
Opening the heat pump.....................76
Output
■ Lag heat pump..........................87, 88
Outside temperature sensor
■ Curve..............................................93
Overview
■ Hydraulic connections..............42, 45
■ Internal components.................90, 92
■ Pumps......................................90, 92
■ Sensors....................................90, 92
■ Valves.......................................90, 92
P
Parameters
■ Cascade via H1..............................87
■ Cascade via LON...........................87
■ Cooling function..............................86
■ External heat source.......................86
■ On-site components.......................82
■ Report...........................................106
■ Swimming pool water heating.........87
Parameter settings
■ External functions...........................85
■ For DHW heating............................37
■ For electric booster heater..............86
■ For instantaneous heating water
heater.............................................86
■ For pumps and other components..83
Permiss. operating pressure............114
Permissible operating pressure.........78
Power-OFF........................................71
Power supply...............................11, 67
Pressure, checking............................79
Pressure drop..........................112, 113
Primary circuit
■ Brine/water. 24, 25, 27, 29, 30, 31, 32
■ Interface..........................................35
Primary store system.........................36
Pt 500.................................................93
Pumps..........................................90, 92
R
Rated heating output........................112
Remote control...................................84
Removing, top panel..........................38
Removing the top panel...............38, 89
Removing the transport brackets.......40
Repairs...............................................89
Repair work........................................76
Replacing seal washers.....................78
Reports............................................106
■ Control parameters.......................106
Required equipment.........24, 26, 30, 36
Return temperature sensor, primary cir-
cuit.....................................................92
Keyword index
Keyword index
(cont.)
5772 458 GB
