ECOSAIRE EN Series, Руководство пользователя

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OEM
CAREL code +030221791 - rel. 2.1 – 21/09/07 29
6.5 Troubleshooting
For the alarms, see instruction sheet +050003755, which is an integral part of this manual.
PROBLEM CAUSES SOLUTION
the humidifier does not turn on
1. no electrical power supply;
2.
controller connectors inserted incorrectly;
3.
fuses blown;
4. transformer fault
1. check the protection device upstream of the humidifier
and that the power supply is present;
2. check that the connectors are properly inserted in terminal
block;
3. check fuses F1/F2/F3;
4. check that the voltage at the transformer secondary is 24
Vac
the humidifier does not start
operation
1. remote ON/OFF contact open (relay/terminals AB –
AB) on CP controller
2. control signal not compatible with the type set
1. close the ON/OFF contacts (relay/terminals AB – AB) on
CP controller
2. check that the external signal is 0 to 10 V
the humidifier fills with water
without producing steam
1. excessive backpressure in steam outlet;
2. cylinder inlet filter blocked;
3. lime scale in the supply tank;
4. drain solenoid valve fault
1. check that the steam outlet hose is not bent or choked;
2. clean the filter;
3. clean the supply tank;
4. check for abnormal voltage (24 Vac) at drain solenoid
valve and/or replace the drain solenoid valve
the line thermal overload switch
is activated
1. the thermal overload switch is undersized
2.
excess current to the electrodes
1. check that the thermal overload switch is rated for a
current equal to at least 1.5 times the rated current of the
humidifier
2. check the operation of the drain solenoid valve, the seal of
the fill solenoid valve when not energised, drain some of
the water and re-start
the humidifier wets the duct
1. the steam distributor is not installed correctly (too
near the top of the duct or the condensate return is
blocked);
2. the system is oversized;
3. humidifier on when the fan in the duct is off
1. check that the steam distributor has been installed
correctly;
2.
decrease the steam production set on the controller;
3. check the connection of a device (flow switch or
differential pressure switch) slaving the operation of the
humidifier to the fan in the duct (terminals AB - AB) on
the CP controller
the humidifier wets the floor
below
1. the supply or overflow circuit has leaks;
2. the steam outlet hose is not properly secured to the
cylinder
1. check the entire water circuit;
2. check that the clamp on the steam outlet is tight
Table 5.5
6.6 Alarms
For the alarms, see instruction sheet +050003755, which is an integral part of this manual.