136
Fill valve
■ External unit........................70, 72, 73
Fill water.............................................74
Fitting cylinder module.......................31
Floor load...........................................23
Floor mounting
■ External unit....................................22
Floor unevenness..............................23
Flow regulating valve.........................44
Flow temperature sensor
■ For heating circuit...........................13
Flow temperature sensor, secondary cir-
cuit.....................................................92
■ Curve..............................................97
Freestanding siting.............................19
Frost stat............................................13
Function check...................................87
Function components 230 V~ 47, 50, 53
Fuse
■ 230 V~ function components..........50
■ AVI PCB...................................50, 56
■ for heat pump control unit...............54
■ Heat pump control unit...................50
Fuse, checking...................................99
Fuse F1..............................................99
Fuse F101..........................................99
Fuse F3..............................................99
Fuse protection
■ External unit power supply.............61
■ Instantaneous heating water heater
power supply..................................62
G
Gravel bed
■ As condensate drain.......................23
H
Heat exchanger cleaning...................79
Heating circuit pump....................13, 14
■ Parameter settings.........................85
Heating circuit with mixer...................13
Heating circuit with mixer M2.............13
Heating circuit without mixer A1.........14
Heating output data..........................126
Heating output subject to type...........84
Heating water buffer cylinder.............13
Heating water flow...........8, 41, 42, 130
Heating water return........8, 41, 42, 130
Heat pump, closing............................65
Heat pump, starting............................81
Heat pump control unit
13
■ Power cable......................................9
Height differential
■ Internal unit-external unit................33
High limit safety cut-out reset.............87
High pressure fault.............................18
High tariff meter...........................63, 64
Hot gas line....8, 13, 33, 35, 37, 70, 130
■ Torque......................................36, 40
Hydraulic assembly
■ External unit type AWT-AC 221.A10
and A13........................................119
■ Internal unit...................................106
Hydraulic connecting chamber...........44
Hydraulic connections..........................8
Hydraulic installation scheme............12
Hydraulic parameters.......................121
I
Immersion thermostat........................13
Impressed current anode...................79
Inspection...........................................68
Installation
■ External unit....................................18
■ Internal unit.....................................23
Installation, external unit
■ Bracket set for wall mounting.........19
■ Supports for floor mounting............19
Installation requirements
■ External unit....................................18
Installation room.................................23
Installation room requirements...........23
Installation scheme......................12, 14
Installing safety assembly..................43
Keyword index
Keyword index
(cont.)
5600 950 GB
