Protection Against Frost; Maintenance - Wolf KGW Series Installation And Maintenance Instructions Manual

Washer
Filter
Frost protection
Maintenance / Frost protection
The washer and drip separator must be cleaned at regular intervals. The cleaning
cycle depends on the operating mode, the condition of the air and the water quality.
The tray has to be drained for maintenance and rinsed with clean water or with a
high-pressure cleaner.
Reduce the spray pressure when cleaning pipes and nozzle stem. Risk of
Caution
breakage.
Commercially available descaling agents can be used.
Do not use cleaning agents which foam.
The washer pump is maintenance-free.
It is, however, advisable to rinse the pump and piping with clean water when
cleaning the washer.
If the washer is out of use for a prolonged period of time, operate the pump for
Caution
approximately 5 minutes once a week to prevent the bearings seizing (do not run dry).
The filter elements of the KG 40-1000 pull sideways out of the housing for cleaning
or replacement once the inspection door has been opened.
The quality class G4 synthetic-fiber mats used for the filter elements can be
regenerated. They can be tapped clean, blown clean with compressed air, or
washed in lukewarm water containing a detergent for sensitive fabrics. Allow the
mats to drip-dry - do not wring out.
The bag-type filters cannot be regenerated and must be replaced when clogged
to the extent that the pressure loss increases to the maximum permissible limit.
Heat exchangers
Warm-water/hot-water heaters and cold-water chillers:
- Operation with commercially available antifreeze agents and frost-protection
thermostat.
- If the heating system is switched off drain all water-retaining components and
blow out residual water with compressed air.
Steam registers:
- If the heating system is switched off drain all water-retaining components and
blow out residual water with compressed air.
Electric heater:
- No frost-protection measures necessary.
Washer
Insulate the water supply pipe on site; install pipe heating if necessary.
Drain tray and pipes and blow residual water out of pipes with compressed air.
Drain the pump (see pump manufacturer's enclosed instructions).
Siphon
Provide adequate on-site measures to ensure that siphon does not freeze.
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