GeneralAire DS35 Elite Steam - Manual (Page 20)

20 Elite Steam +03U221903 REV 2.1
Problem Causes Solutions
The humidifier does not
turn on
1 No electrical power
2 . On/off switch of the humidifier in
Position 0 (off)
3. Control connectors improperly connected
4 . Blown fuses
5. Transformer failure
1. Check the safety devices upstream from the humidifier
and the presence of power
2 . Close the switch on the panel: position I
3. Check that connectors are properly inserted in terminal block
4 . Check the condition of fuses
5. Check that the proper voltage is connected and turned on
The humidifier does not
start operation
1. Remote ON/OFF contact open
2 . The humidistat has not been
connected correctly
3. Humidistat failure
4 . Control signal not compatible with
the type set
5. Value measured by the sensors higher
than the corresponding set point
1. Close ON/OFF contacts
2 . Check the external connection
3. Replace the humidistat
The humidifier fills with
water without producing
steam
1. High steam back pressure
2 . Fill valve strainer clogged
3. Mineral in the fill cup
4 . Drain solenoid valve leaking
1. Check that the steam hose is not kinked or sagging,
trapping condensate
2 . Clean the fill valve strainer
3. Clean the fill cup
4 . Check for voltage at the drain solenoid valve and/or drain
solenoid replacement
The humidifier wets
the duct
1. The distributor is not installed correctly
(too near the top of the duct or the
condensate return is blocked)
2 . System over-sized
3. Humidifier active when the fan in the
duct is off
1. Check that the steam distributor is installed correctly
2. Decrease the steam production set on the control
3. Check the connection of the device (flow switch or differential
pressure switch)
the duct.
controling the humidifier to the ventilation in
The humidifier wets the
floor below
1. The humidifier drain is blocked
2. The supply water or overflow circuit has
leaks
3. The condensate drain pipe does not
bring the water back to the drain pan
4. The steam hose is not properly fastened
to the cylinder
1. Clean the drain assembly and pan
2. Check the entire water circuit
3. Check the correct position of the condensate drain hose in the
drain pan
4. Check the fastening of the hose clamps on the steam outlet
Tab. 6.a
Problem Causes Solutions
Water in the cylinder
turns black
1. Minerals in the cylinder have over
concentrated and are deteriorating the
electrodes
1. Check for sags & kinks that could trap condensate in the
steam hoses that could cause a back pressure on the cylinder
2 . Check the duct static pressure
3. Check the fill valve and inlet strainer
4 . Check the drain valve operation
5. Correct installation problems and replace cylinder
Heavy arcing occurs
within hours of startup
1. The feed water contains large amounts
of Iron, Copper or, other conductive
contaminants
1. Contact the factory for an optional drain timer to force
additional drains to control the minerals
2 . If you are using a softener, check the salt being used. If it
contains any additives, discontinue use, flush all lines and
convert to pure salt or unsoftened water
3. Check the electrodes in the cylinder to be sure they were not
damaged in shipping
Humidifier continuously
fills and drains without
production steam
1. Minerals have bridged the electrodes
2 . There is back pressure from the steam
hoses or duct
3. The flow regulator in the fill valve is broken
or out of place
4 . Water conductivity is very high
5. Water is foaming excessively
1. Clean or replace the cylinder
2 . Check the steam hoses for kinks or gullies that might be
trapping condensate
3. Replace the fill valve
4 . Consider using a mix of demineralized water with raw water
5. Check cylinder - replace if exhausted. If feed water contains
silica or nitrates, install a 1 micron water filter
Tab. 6.b
6. TROUBLE SHOOTING