Chronomite ER-120 208 3P Series Montage-, Installations- und Betriebsanleitung - Seite 4
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Seite druckenELECTRICAL INSTALLATION:
1. Connect power supply wires appropriately sized and protected by three pole circuit breaker to the input
terminals on the heater (hard wired) as shown in the Figure 2 wiring diagram below. Refer to Table 1
above on Page 1 for the voltage, amp and phase ratings of the supply power. Use 3 wires plus ground for
the 3 phase heaters.
2. Ensure each wire L1, L2, and L3 are connected to the respective contactor terminals.
3. Ensure water inlet/outlet valves are both open.
4. Turn on circuit breaker. Carefully ensure the red LED is illuminated at each circuit board module. The unit
is almost ready for use. Shut off circuit breaker.
5. Install cover. Install the (4) cover mounting screws. Turn on circuit breaker. Unit is now ready for use.
6. Local plumbing and electrical codes must be followed in this installation of water heater and the
accessories. Failure to comply with code requirements voids warranty.
7. Temperature adjustment potentiometer is standard equipment on (L) Low Activation and (S) Standard
Activation models.
Figure 2 - Wiring Connections
3 Module Units / 52-69 amps/phase
A=L1
B=L2
C=L3
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