Maytag MFS 25-35 manual Install Supply Cable To The Machine, Power supply protection A

Supply cable of the machine must have copper wires. The cross section of the supply wires depends on the supply voltage and on the total electrical power input of the machine (see table 4.3). The supply cable safety device against a short-circuit fault and overloading must be performed by automatic breakers or fuses in the laundry switchboard. The recommended minimal cross-section of the supply wires as well as the values of fuses (F) for the supply are stated in table 4.5.

In all cases were the local standards requirements are higher, these has to be followed above the recommendation in table 4.5. If the local standards require installation of the earth leakage trip, we suggest to install one of 100 mA for the machines equipped with frequency inverter. The main contacts of the earth leakage trip must comply with the specified power input of the machine.

Power supply protection (A)

Recommended phase

conductor section

(mm2)

Protection conductor

section (mm2)

16	2,5	2,5
25 - 32	4	4
40	6	6
50	10	10
60 - 80	16	16

Tab 4.5.A. Recommended minimal conductor section

4.5.4. INSTALL SUPPLY CABLE TO THE MACHINE

! WARNING !

THE PROTECTIVE CONDUCTOR MUST BE LONGER SO THAT WHEN THE CABLE IS PULLED OUT ACCIDENTALLY, THIS CONDUCTOR IS DISCONNECTED AS THE LAST ONE!

Push the cable through the turnbuckle and connect the wires with the main switch. The diameter of the supply cable must between 11-17mm / 0.43-0.67“ for M25 turnbuckle and between 12-21mm / 0.47-0.83“ for M32 turnbuckle. Conductors of the supply cords shall not be consolidated by lead-tin soldering where they are subject to contact pressure, unless the clamping means is constructed so that there is no risk of a bad contact due to cold flow of the solder. The phase terminals are marked by L1, L2 and L3. A separate insulated terminal, labeled N, is provided for the neutral wire. Connect the protection earth wire directly to the protection earth terminal (marked PE) located on the rear bridge. Tighten the cap nut of the turnbuckle. By this way the rubber ring in the turnbuckle is pressed, thus securing the cable mechanically and against water. If there’s no main switch the terminals are marked in the same way so also the connection is the same. Depending on your supply voltage it is possible that L2 and L3 (1 AC) or N (3 AC without Neutral) must not be connected.

If the cable is attached from above, it is recommended to make a sagging on the cable in front of its entry into the cable turnbuckle. In this way an ingress of the running condensed water into the bush and/or machine can be avoided. The manufacturer recommends to attach the cable from beneath.

1. L1, L2, L3 and N terminal

2. Turnbuckle

3. Turnbuckle nut

4. PE terminal

Fig. 4.5.B. Example of supply cable connection

100646 PUBLICATION DATE Sep 05 INSTALLATION AND MAINTENANCE MANUAL 13