Service And Maintenance; Troubleshooting - Helios KWL-KP I Installation And Operating Instructions Manual

Installation and Operating Instructions
EN
CHAPTER 4
SERVICE AND
MAINTENANCE
ATTENTION
m
DANGER
nm
Condensate pump KWL-KP-I

4.1 Service and maintenance

The condensate hoses must be checked for dirt and damage every 6 months.
4.2 Testing
1. Fill the drain pan with clean tap water until the water level is approximately half way
up the condensate pump body (Fig.2. "Pump On"). The condensate pump KWL-KP-I
should start to pump. The condensate pump KWL-KP-I may be noisy initially until any
air has been purged from the system.
2. Continue to fill the drain pan until the water level reaches the "Alarm On" level (Fig.2.).
The alarm contacts should open. Allow the condensate pump KWL-KP-I to empty
the drain pan. The condensate pump KWL-KP-I should stop and the alarm relay
reset when the water level gets close to the bottom of the condensate pump body
(Fig.2. "Pump Off").
4.3 Trouble shooting
Error
Pump does not run
Pump is noisy
Pump continues to run with
no water
Pump is pumping air
4.4 Standstill and disposal
m Danger to life due to electric shock!
When dismantling, live parts can be exposed, which can result in electric shock
if touched. Before dismantling, isolate the unit from the mains power supply and
protect against being switching on again!
Parts and components of the fan, whose service life has expired, e.g. due to wear and
tear, corrosion, mechanical load, fatigue and/or other effects that cannot be directly
discerned, must be disposed of expertly and properly after disassembly in accordance
with the national and international laws and regulations. The same also applies to auxi-
liary materials in use. Such as oils and greases or other substances. The intended and
unintended further use of worn parts, e.g. impellers, rolling bearings, filters, etc. can
result in danger to persons, the environment as well as machines and systems. The
corresponding operator guidelines applicable on-site must be observed and used.

Troubleshooting

Check fuse and electrical supply connections.
Check water level is high enough to start the
pump.
Check that the condensate pump mains cable
and outlet tube are not vibrating against the si-
des of the drain pan and that there is no debris
in the bottom of the drain pan.
The water sensor can become over sensitive if
contaminated by dirt or certain cleaning chemi-
cals. If this occurs, disconnect the condensate
pump from the mains supply and flush the sen-
sor housing with clean tap water for around 30
s. If the problem persists, flush with methylated
spirit and then rinse with water.
Check that the condensate pump is flat and le-
vel. Check that the outlet tube is not syphoning.
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