AERMEC Novatherm DMH 220 Manual De Uso, Instalación Y Mantenimiento página 29

DMH - DMH_C - DMV
FUNCTIONING MODE
If the digital input ID4 is open, the unit
acts as a real summer dehumidifier, acti-
vating, if required by humidistat (digital
ID3 input closed), both the compressor
and the fan. When the unit setpoint is
satisfied, the compressor and the fan are
switched off, possibly with a preset delay.
DEHUMIDIFIER/FORCED AIR HEATER
DEUMIDIFICATORE/TERMOVENTILANTE
HUMIDISTAT
UMIDOSTATO
THERMOSTAT
TERMOSTATO
LED 3 (YELLOW)
Note: non-serious alarms do not block the functioning of the unit, though they require a check of functioning conditions; serious alarms fully block the
ALARM CODE
E01
E02
E03
E04
E05
E06
E07
Note: all alarms are automatic-reset alarms and simultaneous alarms can be displayed by pressing the SET button; if alarms E01 and E02
occur with a frequency beyond the preset one, they become alarms with a manual reset.
This mode is indicated by the bEU label
The unit can also work as a winter venti-
lator, even if a summer / winter bipolar
switch is used, which closes the digital
input ID4 which automatically disables
the compressor; it must be connected
as shown below, where the thermostat
provides the heating consent (switch and
ID3
ID4
LED 2 (RED)
functioning of the unit.
MEANING
Tripped high pressure switch
Tripped low pressure switch
Air temperature not within the limits
Water temperature not within the limits (dehumidifier mode)
Water inlet temperature S1 probe broken or disconnected
Air inlet temperature S2 probe broken or disconnected
Water temperature not within the limits (forced air heater
mode)
thermostat not supplied)
This mode is indicated by the FAn label.
In both operating modes, the on-board
electronics follow two controls on the
water and air inlet temperatures, to verify
that these are compatible with the chosen
operating mode.
250mA
ALARM CODES THAT CAN BE
ALARM TYPE
no alarm
non-serious alarm
serious alarm
RECOMMENDED ACTION
Check the operating limits
Check the operating limits
Check the operating limits
Check the operating limits
Check the operating limits
EN
ASSOCIATED
no code
E03 / E04 / E07
E01 / E02 / E05 / E06
Repair or replace
Repair or replace
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