AERMEC ANL 100HA, Техническое руководство по установке

Страница: 10 / 36

eN
1205. 6755517_02
10
MoDUCoNtroL
CoNtroL PANeL
of water to be sent to the utilities.
6.5. SAFetY AND CoNtroL CoMPoNeNtS
HIgH PreSSUre SwItCH
With fixed calibration, placed on high pressure
side of cooling circuit, inhibits functioning of
compressor if abnormal work pressure occurs.
HIgH PreSSUre trANSDUCer
Placed on high pressure side of cooling circuit,
signals the work pressure to control board,
generating a pre-warning in case abnormal
pressure occurs.
Low PreSSUre trANSDUCer
Allows displaying, on the microprocessor board
display, the value of the compressor's suction
pressure (one per circuit) on the low-pressure
side of the cooling circuit.
6.6. eLeCtrIC CoMPoNeNtS
Electric Control Board
Contains the power section and the man-
agement of controls and safety devices.
It is in compliance with the IEC 60204-1
Standard and the Directives regarding
electromagnetic compatibility EMC 89/336/
EEC and 92/31/EEC.
Door-lock isolating switch
The electric control board can be ac-
cessed by removing the voltage. Act on
the opening lever of the control board itself.
This lever can be locked using one or more
padlocks during maintenance interventions
to prevent the machine being powered up
accidentally.
Control board
Allows complete control of the appliance.
For a more in-depth description please refer to
the user manual.
−
compressors magnet circuit-breaker pro-
tection.
− fans magnet-circuit breakers protection;
− auxiliary magnet circuit-breaker protection
−
Heat exchanger inlet/outlet water temper-
ature probes
−
Gas temperature probe one on the for
pressing line and coil
−
External air temperature probe
►
For further information please refer to user
manual
Electric regolation
MoDU CoNtroL
Temperature control of the output water with proportional-integral
algorithm: maintains average output temperature at value set
- Self-adapting differential switch: guarantees minimum functioning
times of the compressor in systems with low water content.
- Intelligent defrosting for pressure reduction: allows to determine
when the coil is effectively defrosted, avoiding useless defrosting
- Set-point compensation with external temperature: reduces energy
consumption
- Pre-alarms with automatic reset: in the case of alarm, a certain
number of re-starts are allowed before the definitive block
alarm on the ∆T: to identify wiring errors (reverse rotation) or
blocked cycle reversing valve
- Compressor functioning hours count.
- Compressor peak count.
- Historical alarms
- Autostart after voltage drop.
- Local or remote control
Display of the start of the unit:
1.
Voltage presence
2. compressor ON/OFF
3.
functioning mode (hot/cold)
4.
alarm active
Probes, transducers and parameters display
1. Water outlet
2. water inlet
3.
Coil temperature (heat pumps)
4. Pressing gas temperature
5.
External air temperature (heat pumps)
6.
pressure delivery (heat pumps)
7.
intake pressure (heat pumps)
8.
Temperature error (sum of the proportional and integral error)
9.
stand-by times for start-up/switch-off of the compressor
10. Alarms management:
11. Low pressure
12.
High pressure (primary alarm: switch directly blocks supply to
compressor)
13. High discharge temperature
14.
anti-freeze
15.
Water differential flow switch. alarm on the ∆T
− alarms with automatic reset with limited number of re-starts be
-
fore blocking.
−
ON/OFF external contact
−
Change season from external contact
For further information please refer to user manual.