Installation manual

ROBERTS GORDON
®
ULTRAVAC™ CONTROLLER INSTALLATION MANUAL
16
FIGURE 12: ROBERTS GORDON
®
ULTRAVAC™ Central Controller External Wiring
METER
INPUTS
ANALOG INPUTS
RS-485
Outdoor
Sensor
BMS Enable
(optional)
NC C NO
To Satellite Controller
RS-485
(see NOTE 2)
Zone 1
Sensor
120 V
1 Ø
60 Hz
POWER
L1 L2 GRD
OUTPUT 1
L1 L2 GRD
OUTPUT 2
L1 L2 GRD
OUTPUT 3
L1 L2 GRD
OUTPUT 4
L1 L2 GRD
OUTPUT 5
L1 L2 GRD
OUTPUT 6
L1 L2 GRD
OUTPUT 7
L1 L2 GRD
OUTPUT 8
L1 L2 GRD
4 3 2
+
1
-
+
-
+
-
+
-
REF-+-+
24VAC Outputs
c
5
+
c
6
+
c
7
+
c
8
+
24V VAC
24VAC Outputs
c
1
+
c
2
+
c
3
+
c
4
+
1
+
-
2
+
-
3
+
-
4
+
-
5
+
-
6
+
-
7
+
-
8
+
-
+5v
GND
+16v
GND
Pressure
Switch (Pump)
Phone Line
for Modem
(optional)
see NOTE 1
To RS-485
Converter at PC
(optional)
see NOTE 1 & 2
Pressure Switch
(Optional Outside Air Blower)
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. 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. 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 +16 V/GND inputs.
NOTE 5: Internal pre-wiring not shown.
NOTE 6: 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.
Zone 2
Sensor
+-O/RSETSEN
+
-
O/RSETSEN
Electrical wiring connections indicated by a dot;
+-
Modem
Chip
See
NOTE 2
1234
Continued
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