Roberts Gorden CoRayVac CRV-B-6 - Manual (Page 57)

SECTION 12: C ONTROL M ETHODS
51
FIGURE 33: External Wiring Diagram EP-100, EP-201 or EP-301 230 V 1 Ø Pump
System Control
R R R R PS 2 PS 1 24 VAC
COM
24 VAC
COM PS 1 PS 2 W W W W
24 VAC
120 V
1 Ø
60 Hz
Ground
G L N
120 V
1 Ø
60 Hz
PUMP 2 PUMP 1 POWER
SUPPLY
N L
Z1 Z2 Z3 Z4
N N N N L L L L
All burners must be
connected to Ground
(Not shown)
Zone 1 Zone 2 Zone 3 Zone 4
N L
L
N
TWO PUMP SYSTEM (optional)
Pump 1 may be used for all zones.
Pump 2 may be used to control zone 3
and/or zone 4. Refer to Pump 1 for configuration.
Low voltage thermostats
located in heated zone
Zone
1
Zone
2
Zone
4
Zone
3
Pressure
switch
located at
Pump 2 Pressure
switch
located at
Pump 1
208 - 230 V
1 Ø
60 Hz
L2
L1
M
1
5
3
2
6 4
Individual supply for pump
rated for total full load
current. See Pump
Specifications Section for
details.
EP-100, EP-201
or EP-301Pump
The power supply for the
pump must be separate
from the controller supply
Motor Contactors
P/N 10050011
P/N 10050012
EP-100, EP-201
or EP-301Pump
CAUTION
Product Damage Hazard
Do not directly connect control relay terminals
to pump motor.
Failure to follow these instructions can result
in product damage.