554515_A_PUB_DATE_1_FEB_2014.DOC
INSTALLATION AND MAINTENANCE MANUAL
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4.4. CONNECTIONS
WATER CONNECTION
The washers are equipped with ¾“, 1“ or 1½“ BSP (British Standard Pipe Thread) hot and cold water inlet
valves, indicated by a sticker next to the inlet. For connection dimensions see figures 3.3., 3.5.
Use the water inlet hoses that accompany the washer as they are properly adapted to the water valves
and appliance. NEVER use a rigid connection to the water supply.
If ¾“ inlet hoses, there are 2 kinds of water inlet hoses, water inlet hoses with at both sides BSP threaded nuts
or at one side a BSP nut and a NPT nut on the other end. If a NPT Nut is present it is marked with a groove.
The 1“ or 1½“ inlet hoses have on both side BSP thread. To connect them to a NPT installation, an adapter
is available. For best operation of the washer, it is necessary to keep the water pressure within the limits
stated in the chapter „3. TECHNICAL SPECIFICATIONS“. Water pressure that is below minimum requirements
can lengthen the wash cycle or/and not allow proper function of the washer.
It is also necessary to connect ALL available water inlets to a water supply. If a hard water supply is not present,
connect it with soft cold water. If no hot water supply is present, contact your dealer for the proper required action.
TO INSTALL
Flush the water system in order to remove any particles that may be in the water system. Install on the washer
the filter device, normally delivered with the washer. Connect to this the inlet water hose with appropriated
seal washer where necessary.
When connecting inlet hoses, be sure hose connections are not cross-threaded on the connection devices.
Tighten the hoses securely. DO NOT over tighten as this will damage threads on the device(s).
The water hardness can have an influence on the wash results. The soap supplier can help you with making
the right decisions concerning hard water, soft water, washing programs, type of soap and other related items
to give the best wash results.
HOT WATER
IMPORTANT – TEMPERATURE IN WASHING TUB
The electronic controller uses the temperature sensor in the tub to control the temperature of the washing bath.
There are a lot of things that have influence on the temperature measurement. Therefore the temperature
control of the washing bath is not very precise.
In principle, the manufacturer strives that the real temperature inside the washer is never higher than
the programmed temperature so that textile linen will not be damaged because of too high temperature.
If for certain applications a very precise washing bath temperature is necessary, appropriate measures must
be taken, see Programming manual.
The manufacturer will refuse any responsibility for all consequences because of inaccurate temperatures
inside the washing machine tub.
The hot water supply needs to be large enough to provide the required hot water for the installed washers.
For good wash results we advise a hot water supply that is set between 140 - 160°F / 70 - 80°C.
WATER CONSUMPTION
The water consumption depends on the programmed values in the controller. These default values can be found
in the program manual. For a pre-wash and wash the low water level (LL) is used. The high water level (HL)
is used for rinsing. The programmed units correspond to an average amount of water. You can calculate
the total water consumption in one washing program by counting up the amount of water by each washing
step. Be aware of the fact that these are only indicative values. The values received from this calculation is only
an estimation of the real water consumption. The deviation depends on many circumstances. In the wash
cycle for example there will be taken a mix of warm water and cold water. The mix of the water depends
on the temperature of both. The total amount of water consumed depends also on the loading, type of linen
and the the drum rotation.
WATER DRAIN CONNECTION
By default washers are equipped with two drain outlets with outer diameter of 75 mm (3“). Machines of 80-100-120 kg
/ 180-230-275 lb have a diameter of 103 mm (4“). The drain outlets are situated on the rear of the machine. The
drain has to be connected to the waste channel or pipeline. Seal the connecting point of the drain throat and
Summary of Contents for LH-550
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