Features and technical data
Installation, use and maintenance manual – Gitié AHAY
7
1
1 FEATURES AND TECHNICAL DATA
The Gitié AHAY group consists of a GAHP A heat pump and a
AY00-120 condensing boiler.
1.1 FEATURES
1.1.1 GAHP-A unit features
Operation
Based on the thermodynamic water-ammonia absorption cycle
(H
2
0–NH
3
), the appliance produces hot water using outdoor air
as a renewable energy source (cold source) and natural gas (or
LPG) as primary energy.
The thermodynamic cycle takes place within a hermetically
sealed circuit, in welded construction, perfectly tight, facto-
ry-tested, which does not require any maintenance or coolant
top-ups.
Mechanical and thermo-hydraulic components
▶
Steel sealed circuit, externally treated with epoxy paint.
▶
Sealed combustion chamber (type C) suitable for outdoor
installations.
▶
Metal mesh radiant burner, equipped with ignition elec-
trodes and ame detection, managed by an electronic ame
control box.
▶
Titanium stainless steel shell-and-tube water heat exchang-
er, externally insulated.
▶
Stainless steel, shell-and-tube recovery exchanger of ue gas
latent heat.
▶
Air exchanger with nned coil, with steel pipe and alumin-
ium ns.
▶
Automatic microprocessor-controlled nned coil defrosting
valve.
▶
Standard or S1 silenced fan (reduction of electrical con-
sumption and reduction of sound emission).
Control and safety devices
▶
S61 electronic board with microprocessor, LCD display and
knob.
▶
Mod10 additional electronic board (integrated in S61).
▶
Auxiliary W10 electronic board.
▶
Water owmeter.
▶
Generator limit thermostat, with manual reset.
▶
Flue gas thermostat, with manual reset.
▶
Generator ns temperature probe.
▶
Sealed circuit safety relief valve.
▶
Bypass valve, between high and low-pressure circuits.
▶
Ionization ame control box.
▶
Double shutter electric gas valve.
▶
Antifreeze functions for hydraulic circuit.
▶
Condensate discharge sensor.
1.1.2 AY00-120 Unit features
Operation
The AY00-120 unit is a high eciency condensing boiler suitable
for supply hot water up to 80 °C. The appliance is provided with
an internal heat exchanger to separate internal hydraulic circuit
from system hydraulic circuit.
Mechanical and thermo-hydraulic components
▶
Premix multigas burner with low NOx and CO emissions.
▶
Stainless steel plate heat exchanger, which also acts as a hy-
draulic separator.
▶
Automatic and manual air vent devices on the appliance in-
ternal circuit.
▶
Flue gas exhaust duct with relevant terminal, for type B53P
conguration.
▶
Condensate discharge siphon (with antifreeze protection).
Control and safety devices
▶
Electronic board with microprocessor.
▶
Automatically resettable water temperature limit thermo-
stat.
▶
Flue gas limit thermostat, for single use (thermal switch).
▶
System circuit water dierential pressure switch (PD1).
▶
Appliance internal circuit water dierential pressure switch
(PD2) with anti-welding function.
▶
Overpressure valve for the appliance internal circuit, set to
trip at 3 bar.
▶
Appliance internal circuit expansion tank.
▶
Ionization ame control box.
▶
Double shutter electric gas valve.
▶
Antifreeze functions for hydraulic circuit.
▶
Antifreezing thermostat for the heating element on the con-
densate siphon.
1.1.3 AHAY Integrated package features
The Gitié group is available in the following versions (Figure
1.6
p.11
):
▶
Basic version (/4 C0)
▶
Version KIT/4 C1
▶
Version KIT/2 C0
▶
Version KIT/2 C1
In all versions units operation may be simultaneous or
independent.
The Table 1.1
p. 7
shows the features of the various versions
in detail.
Table1.1 Gitié AHAY package versions
Version Pipes Circulating pumps Motorised 2-way valves Hydraulic circuits Fan
/4 C0 4 No No independent standard
/4 C0 S1 4 No No independent silenced modulating
/4 C1 4 Yes No independent standard
/4 C1 S1 4 Yes No independent silenced modulating
/2 C0 2 No Yes single standard
/2 C0 S1 2 No Yes single silenced modulating
/2 C1 2 Yes No single standard
/2 C1 S1 2 Yes No single silenced modulating