121
Installing the programming unit..........59
Instantaneous heating water heater...10
Instructing the system user................91
Intended use......................................10
Internal components
■ Overview...................................92, 94
Isolators.............................................54
L
Levelling the heat pump.....................28
Low pressure sensor....................93, 95
M
Minimum clearances..........................14
Minimum flow rate..............................37
Minimum room volume.......................14
Minimum system pressure.................65
N
Ni 500.................................................96
Noise..................................................97
O
ON/OFF switch..................................67
On-site connections...........................19
Opening non-return valves.................65
Opening the heat pump.....................63
Output extension................................10
Overview
■ Hydraulic connections....................32
■ Internal components.................92, 94
■ Pumps......................................92, 94
■ Sensors....................................92, 94
■ Valves.......................................92, 94
P
Permissible operating pressure.........65
Power cable routing...........................39
Power-OFF........................................58
Power supply...............................11, 54
Primary circuit connection..................35
Pt500..................................................96
Pumps..........................................92, 94
R
Removing the transport brackets.......29
Repairs...............................................92
Repair work........................................63
Replacing seal rings...........................65
Reports............................................108
Return temperature sensor, primary cir-
cuit...............................................93, 95
Return temperature sensor, secondary
circuit............................................93, 95
■ Curve..............................................96
Room height.......................................14
Room volume.....................................14
Routing
■ 230 V cables...................................39
■ LV leads..........................................39
■ Power cable....................................39
Routing LV leads................................39
S
Sensor resistance curves...................96
Sensors........................................92, 94
Service...............................................63
Siting......................................14, 19, 28
Siting the heat pump..........................28
Soft starter.........................................58
Suction gas temperature sensor. .93, 95
System flow temperature sensor
■ Curve..............................................96
T
Tightness test.....................................65
Tilting angle........................................14
Transport bracket...............................97
V
Venting
■ Primary side....................................64
■ Secondary side...............................64
Volume...............................................97
Keyword index
Keyword index
(cont.)
5848 246 GB
