Alliance Laundry Systems WFF135 - Manual (Page 30)

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The machine is delivered with hoses with 3/4" connections. These hoses fit the water
inlet valves of the machine and the main water inlet taps. All the inlet valves have to be
connected. To ensure the optimal functioning of the water inlet valves, the water pressure
on the inlet should be between 3 and 5 bar (40 and 80 psi). If the pressure is too low, the
cycle time will increase considerably.
International inlet flow capacity per minute (gallons / liters): 4.23 / 16.
US inlet flow capacity per minute (gallons / liters): 5.28 / 20.
In case of boiler fed machines, a minimum of hot water of 90°C - 194°F should be
available per unit. (See Table 1)
MODEL
Min Contents
Boiler
METRIC US
For the WFF65 = WFF65, IWF065, IWF014, CWF065, CWF014 55 l. 1.94 ft³
For the WFF75 = WFF75, IWF074, IWF018, CWF074, CWF018 65 l. 2.29 ft³
For the WFF100 = WFF100, IWF100, IWF025, CWF100, CWF025 80 l. 2.82 ft³
For the WFF135 = WFF135, IWF135, IWF030, CWF135, CWF030 100 l. 3.53 ft³
For the WFF165 = WFF165, IWF165, CWF165 120 l. 4.23 ft³
Water connection
 The diameter of the main drain should be adapted to the water flow and the number
of machines. It should be sufficient to handle at least 80L/min - 21.13 gal./min per
machine.
 It is necessary to connect the main drain at least on one side to an open air-brake to
allow ventilation.
The machine is equipped with a drain valve with 2" outer diameter (50 mm). This drain
valve should be connected to the drain by means of the drain elbow which is delivered
with the machine.
Water drain
Table 1
To comply with the WRAS water regulations: an 'approved' single check valve or
some other no less effective backflow prevention device shall be fitted at the point of
connection(s) between the supply and the fitting (IRN R150).