Roberts Gorden EP-200 Series, EP-203 Motor WIRING6.1 Prior to Operation, EP-201 Motor Wiring

EP-200 SERIES PUMP INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 6: MOTOR WIRING6.1 Prior to Operation

	WARNING	Prior to operation of the pump in the heating system,
		operation and proper rotation of the impeller must be
		verified.
		IMPORTANT: Improper rotation of the impeller will
		not produce the vacuum required for proper system
		operation.
		The EP-201 motor must be wired for clockwise or
	Electrical Shock Hazard
	Disconnect electrical power and gas supply before	counterclockwise rotation as shown on Page 12, Fig-
	servicing.	ure 11.
	This appliance must be connected	The EP-201 motor is wired for 1 Ø, 120 V, 60 Hz
	to a properly grounded electrical source.
		operation. The EP-201 motor can be rewired for 230 V
	Failure to follow these instructions can result in
		operation by changing the motor connections as
	death or electrical shock.
		indicated by the diagram on the motor connection box
All wiring must comply with current wiring regulations
		cover.
and any local regulations which may apply. Always
		Wire the pressure switch per the CORAYVAC® (P/N
switch off the supply and disconnect before servicing.
		127102NA), VANTAGE® EV (P/N 151100NA) or appro-
		piate controller installation manual.
FIGURE 11: EP-201 Motor Wiring
EP-201 Motor

To reverse rotation, interchange black and red leads.

	O
		r
		a
		n
R		g
		e
	e
B	d
r
o
w
n

							k
					lac
				/B
			w
		o
	ll
e
Y
				Black
			Yellow
			W
	B			hite
		ro
				wn/
Br					White
		o
			w
				n/
					W
						hi
								te

115V Power Supply

(Control Panel or Relay)

Line

Neutral

Motor

Interlock

(Not Used)

Ground

Screw

Motor Junction Box

The EP-203 motor can be wired for 3 Ø, 208 V - 230 V, 60 Hz or 3 Ø, 460 V, 60 Hz operation. The EP-203 motor rotation direction can be changed by interchanging any two leads.

Wire the pressure switch per the CORAYVAC® (P/N 127102NA), VANTAGE® EV (P/N 151100NA) or appropiate controller installation manual.

FIGURE 12: EP-203 Motor Wiring

12