178
Cross connect PCB....................77, 124
Curve
■ Temperature sensor, type Pt500. .129
■ Temperature sensor type Ni500...129
Cylinder loading pump.......................59
Cylinder primary pump.....................116
Cylinder temperature sen-
sor....................................48, 53, 59, 60
■ Curve............................................128
D
Declaration of Conformity................176
Designations for system examples....14
DHW circulation pump...48, 53, 59, 116
DHW cylinder
■ Interface..........................................44
■ With cylinder loading system..........36
■ With internal indirect coil.................33
DHW heating................................33, 45
■ With cylinder loading system..........59
■ With solar thermal system........57, 60
Dimensions........................................11
Draining............................................128
E
Economy tariff meter101, 102, 104, 105
EEV PCB.........................................124
Electrical components......................123
Electrical connection
■ General information..........................8
■ Heat pump control unit...................76
■ Heat pump stage 1/2......................75
Electrical connections........................71
■ Overview.........................................76
■ Routing cables................................72
Electrical installation scheme
■ DHW heating............................34, 37
■ Heat pump cascade........................44
■ Primary circuit, brine/water. 16, 21, 24
■ Primary circuit, water/water 18, 26, 31
■ System scheme 10.........................61
■ System scheme 2...........................49
■ System scheme 6...........................54
Electric booster heater.....................120
Electronic expansion valve..............127
Electronic expansion valve EEV..........6
Enable external extension................121
Expansion PCB....................77, 83, 124
Expansion vessel...................48, 53, 59
■ Checking the pre-charge pressure112
Expansion vessel, checking.............112
Extended menu................................115
Extension kit, mixer..........................116
External blocking..............................118
External changeover........................118
External demand..............................118
External extension H1........61, 117, 121
External H1 extension........................41
External heat source....................57, 59
External starting...............................118
F
Fan convector....................................53
Feed.........................101, 102, 104, 105
Filling
■ Primary side..................................111
■ Secondary side.............................111
Filling and venting the primary circuit111
Filling and venting the secondary cir-
cuit...................................................111
Floor area.............................................9
Flow limiter.........................................59
Flow switch
■ Connection...............................28, 32
Flow temperature for external
demand....................................121, 122
Flow temperature sensor...................60
■ Curve............................................128
Flow temperature sensor, primary cir-
cuit...................................................127
Flow temperature sensor, secondary cir-
cuit...................................................127
■ Curve............................................128
Flow temperature sensor, separate cool-
ing circuit............................................53
Keyword index
Keyword index
(cont.)
5609 667 GB
