17
i-32V5
Pompe di calore inverter aria/acqua con ventilatori assiali
•
b05
= compressor regulation delta cut-off = 0,2°C (default)
•
b25
= compressor regulation delta cut-on = 2°C
RPM
Tw,out (outlet water temp.)
Tw,out,set
HzMaxReg
OFF
HzMin
b05
∆T,s
et + 2°C
•
The compressor shutdown is regulated by parameter b05: the compressor shutdown when è regolata dal parametro b05
Tw,out >
Tw,out,set + b05
•
The compressor restart when:
Tw,out < (Tw,out,set - ∆Tset – b25)
EXCEPTION
: if
∆T,set > 8°C
, the compressors restart when the discarge probe temperatureis lower than the setpoint 10°C:
Tw,out < (Tw,out,set
- 10°C)
9. DISSIPATION FAN CONTROL
The dissipation control depends on the condensing pressure in chiller mode, while it depends on the evaporation pressure in heat pump mode.
Ventilation control depends on operation of the compressor.
A pre-ventilation occurs every time the compressor switches on and off.
9.1
SILENCED VENTILATION
Configuring a digital input DI9 with the parameter
H53
=25 it is possible to manage the silent ventilation management function.
Parameter
VALUE
Function
H53
0 (default)
Function disabled
25
Open contact -> standard mode
Closed contact -> silenced mode
With the function active the noise, output and power of the unit are limited, for additional information see the installer user manual.
10. CONTROLLER FUNCTIONS
The following is a list of the functions which can be activated in the machine controller; not all of them can be selected simultaneously.
Values other than the default values can jeopardise proper operation of the unit. If in doubt on which value to set, contact our headquarters.
10.1 ANTIFREEZE PROTECTION HEATERS (IF KA ACCESSORY IS AVAILABLE)
If the optional KA kit is present, the function is active by default.
The water antifreeze heaters on the faces of the evaporator plates even activate with the machine off (but powered) when the delivery water
temperature drops below
r02
°C (default 4°C) in “heating” mode or below
r03
°C (default 4°C) in “cooling” mode or when switched “OFF”. The
heaters are switched off when the temperature measured by the outlet water probe exceeds
r02+r06
in “heating” or
r03+r06
in “cooling” or
when “
OFF
” (default value r06=2.0 °C).
The heating cable at the base of the machine activates when the outdoor air temperature drops below 3°C. It deactivates when the outdoor
temperature rises above 5°C.
10.2
ENABLING DOMESTIC HOT WATER PRODUCTION
To activate the domestic hot water functions, connect a probe to be placed inside the tank to terminals
X17.1-X17.2
(enabled as analogue input).
The sanitary function must be enabled after positioning and connecting the temperature probe.
