Modu Control Electronic Adjustment; Accessories - AERMEC ANR Serie Manual Tecnico

tection
4.6 MODU CONTROL ELECTRONIC
ADJUSTME
Modu_Control
- Outlet water temperature control with
proportional-integral algorithm: it keeps
outlet medium temperature to the value
set
- Self adapting start-up differential: it
guarantees the minimum time of com-
pressor operation in systems with low
content of water
- Intelligent defrosting for pressure decre-
ase: it allows to determine when the coil
is actually defrosted by avoiding useless
defrosting
- Defrosting by hot gas injection it con-
sumes less energy, increasing heating
capacity, efficiency and preventing tem-
perature decrease in terminals (it is very
important in systems with low content
of water)
- Emergency defrosting with cycle rever-
sing: to overcome the most demanding
conditions
- Compensation of set-point with out-
side temperature (with an additional
ambient air probe): it reduces energy
consumption
- Condensation control based on pressure
instead of temperature, for a total stabi-
PR3 - simplified remote control panel
It allows basic machine controls to be
performed (turning on / off, changing
function mode, summary of alarms). The
maximum installation distance allowed is
150 m with a six-pole cable (cooling-only
version) or seven-pole cable (heat pump
versions) plus shielding, with minimum
cross section of 0.5 mm.
VT – Shock absorbers.
Set of four shock absorbers to fit
under the steel base in the points alre-
ady prepared. Their purpose is to dam-
pen the vibrations produced by the
5. 1 COMPATIBLE ACCESSORIES TABLE
DCPX 51
STANDARD VERSION
ANR 0502H •
ANR 0802H •
ANR 0902H •
VERSION WITH PUMP
ANR 0502HP Standard
ANR 0802HP Standard
ANR 0902HP Standard
VERSION WITH ACCUMULATION
ANR 0502HA •
ANR 0802HA •
ANR 0902HA •
VERSION WITH ACCUMULATION AND HEATER
ANR 0502HK •
ANR 0802HK •
ANR 0902HK •
(*) = only for versions operating with 3N 400V ~ 50Hz.
14
lity (with additional rpm regulator)
- Reverse condensation control for opera-
tion with heat pump also during sum-
mer (with additional rpm regulator)
- 5 temperature sensors and 2 pressure
transducers
- automatic reset pre-alarms: in case of
alarm, it is allowed to restart a certain
number of times before the final lockout
- alarm yields on ∆T: to identify the wiring
errors: (reverse rotation) or reverse cycle
valve locked
- Compressor operation hour counter
- Compressor peak counter
- Alarm Log
- Autostart after voltage drop
- Local or remote control
- Display of the unit status:
a. Presence of mains voltage
b.Compressor - ON/OFF
c. Operating mode (heat/cooling)
d. Alarm active
- Display of sensors, transducers and para-
meters
a. Water outlet
b. Water inlet
c. Coil temperature
d. Gas delivery temperature
e. Outside air temperature (heat pumps,
with DCP)
f. Delivery pressure
g. Suction pressure
h. Temperature error (sum of proportional

ACCESSORIES

5
compressor when it is in operation.
BDX - condensate collection basin.
(for external unit).
DCPX – Condensation control device.
Compulsory accessory on heat pumps for
domestic hot water production (DHW).
It is necessary for domestic hot water pro-
duction in summer, up to an outside air tem-
perature of 42°C.
Standard assembly on HP versions.
NOTE:
Compulsory accessory if dome-
stic water production is envisaged
PR3 VT9 BDX7
• • •
• • •
• • •
• • •
• • •
• • •
• • •
• • •
• • •
• • •
• • •
• • •
i. Waiting time for the compressor to turn
- Alarm management
a. Low pressure
b. High pressure (main alarm: the pressu-
c. High discharge temperature
d. Anti-freeze
e. Water differential pressure switch
f. Alarm output on ΔT
-
-
-
(DHW), for version (H).
DRE - starting current reduction devi-
ce.
It permits the reduction of the starting
current needed by the machine in the
start-up phase.
NB:
Can only be applied in the factory.
DRE 5 (*)
(X2)
(X2)
(X2)
(X2)
(X2)
(X2)
(X2)
(X2)
(X2)
(X2)
(X2)
(X2)
and integral errors)
on / off
re switch disconnects the compressor
power supply)
Automatic reset alarms with a restricted
number of restarts before the lockout
ON/OFF by external contact
Season change by external contact
For further information, see the user
manual