Figure 11: Roberts Gordon - Roberts Gorden UltraVac NEMA 4 Installation Manual

ROBERTS GORDON ® ULTRAVAC™ C

FIGURE 11: ROBERTS GORDON

Zone 1 Zone 2
Sensor Sensor
(see NOTE 6) (see NOTE 6)
SEN SET O/R - + SEN SET O/R
Electrical wiring connections indicated by a dot;
Ground Shield (one end only) indicated by;
Separate line and low voltage circuits.
Do not run line voltage wiring through bottom
section of enclosure that houses the control board.
Do not run low voltage wiring through top section
of enclosure that houses the relay board.
Do not run line and low voltage wiring
in the same conduit.
NOTE 1: This diagram applies to the Central
Controller (controller #1) only. For all Satellite Controllers see Satellite Controller External Wiring Diagram. Central Controller
(controller #1) requires outdoor sensor wiring and either modem, RS-485 converter wiring, or TCP/IP module wiring.
NOTE 2: Twist shield wires for both RS-485 communication cables together and ground at central panel only. On controller #1 only,
connect these twisted shield wires to ground. For VFD 0-10 V signal wiring, connect shield wire to ground at the controller only.
NOTE 3: 120 V 1 Ø 50-60 Hz supply for 120 V VFD model. 230V 1 Ø 50-60 Hz supply for 230 V VFD model. 460 V 3 Ø 50-60 Hz
supply for 460 V VFD model. See VFD rating plate for required input. Repetitive cycling of a disconnect or input contactor
(more than once every two minutes) may cause damage to the drive.
NOTE 4: Zone 3 Sensor(not shown) wiring is as follows: SEN output to analog input 3; SET output to analog input 6;
O/R output to meter input 3; +/- outputs to +32 V/GND inputs.
NOTE 5: Internal pre-wiring not shown.
NOTE 6: Wiring from 32 V terminals on the controller to sensor power terminals "+" and "-" is polarity sensitive.
NOTE 7: All three power output wires from terminals U, V, and W to the pump motor must be kept tightly bundled and run in a
separate conduit away from all other power and control wiring.
16
I M
ONTROLLER NSTALLATION ANUAL
®
ULTRAVAC™ Central Controller External Wiring
Outdoor
Sensor
- +
+ -
NC C NO
BMS Enable
(optional)
Phone Line
for Modem
(optional)
(see NOTE 1)
To Satellite Controller
RS-485
(see NOTE 2)
1 2 3 4
+ - + - + - + -
To RS-485
(See
Converter at PC
NOTE 2)
(optional)
(see NOTE 1 & 2)
Pressure
Switch (Pump)
Continued
On Next
120 V
1 Ø
60 Hz
Pressure Switch
(Optional Outside Air Blower)
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