AQUAKOND AKY
CONDENSING BOILER
14
code HC0048.10GB ed.B-1811
AKY
* These components are included in the whole AKY range. For
AKY050/070/100 models, they are compliant with or certified
according to INAIL standard.
** Components included for AKY050/070/100 models only, they
are compliant with or certified according to INAIL standard.
VS1
AKY032/034 safety valve
VS2*
AKY050/070/100 safety valve
VSC
boiler vent valve
U.I.
Internal unit [fan heater]
FAN
air fan
VSB
battery vent valve
TERM**
INAIL thermometer
TV
fan thermostat
Key
U.E.
External unit [boiler]
EV1
main gas solenoid valve
EV2
secondary solenoid valve
VG
gas valve (EV1+EV2)
FLUX
water flow gauge (flowmeter)
IDROM* hydrometer
IPMAX** limit water pressure switch [manual reset]
IPMIN**
minimum water pressure switch [manual reset]
NTC1
water delivery modulation temperature probe
PFLUE
flue gas pressure switch
P
system pump (circulator)
PIT**
temperature inspection well
PMIN/PREX pressure probe
PZI**
well for fuel cut-off valve
R3VIE**
3-way control valve
RBC
filling tap
TFUMI
flue gas thermal fuse
TF
exchanger protection thermal fuse
TDOOR
AKY100 burner door thermostat
VAG
burner fan
TS
safety thermostat 90°C
VE
expansion reservoir
3.3. Hydraulic circuit characteristics
AKY boilers have similar hydraulic circuitry; AKY050/070/100 models are characterised by some additional components with
respect to AKY032/034 models, which have heat output below 35kW and therefore do not need INAIL declaration.
When several systems are installed, the sum of the heat outputs is allowed only if the hydraulic circuit is shared among
several boilers.
AKY050/070/100 models, with rated heat output above 35 kW, are included in INAIL standard; therefore, the components of the
boiler and the system must comply with this directive.
A declaration must be submitted to the competent body. We suggest sending the declaration at the time of installation.
