4
Water connection
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.
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 WF150 = WF150, IWF150, IWF033, CWF033 | 116 l. | 4.09 ft³ | |
For the WF185 = WF185, IWF185, IWF040, CWF185, CWF040 | 145 l. | 5.12 ft³ | |
For the WF235 = WF235, IWF235, IWF055, CWF235, CWF055 | 150 l. | 5.29 ft³ | |
For the WF305 = WF305, IWF305, IWF075, CWF305, CWF075 | 180 l. | 6.35 ft³ | |
For the WF400 = WF400, IWF400, IWF090 | 240 l. | 8.48 ft³ | |
Table 1
MODEL | Inlet flow capacity per minute (Gallons / Liters) | |||
INTERNATIONAL | US | |||
|
| |||
For the WF150, | 185 | 4.23 / 16 | 5.28 / 20 | |
For the WF235, | 305, 400 | 7.93 + 13.2 / 30 + 50 | 7.93 + 13.2 / 30 + 50 | |
Table 2
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).
30