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ROBERTS GORDON
®
ULTRAVAC™ CONTROLLER INSTALLATION MANUAL
16
FIGURE 11: ROBERTS GORDON
®
ULTRAVAC™ Central Controller External Wiring
+
-
12
4
3
5
6
7
8
+
-
+-
REF
24VAC
L2
RS485 COMM
REF
+-
1
+-
2
+-
3
+-
4
METER INPUTS
UNIVERSAL INPUTS
INOUT
ADDRESS
RESET
10VDC
499 OHM
OFF
ON
OUT
IN
GINOUT
GGG
+5
+32
AUX POWER
RS232 DIRECT
RICDOH
CPU
L1
PWR
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.
Outdoor
Sensor
BMS Enable
(optional)
NC C NO
To Satellite Controller
RS-485
(see NOTE 2)
Zone 1
Sensor
(see NOTE 6)
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
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)
Zone 2
Sensor
(see NOTE 6)
+-
O/RSET
SEN
+
-
O/RSET
SEN
Electrical wiring connections indicated by a dot;
Ground Shield (one end only) indicated by;
+-
(See
NOTE 2)
Continued
On Next
Page
+-
1
+-
2
+-
3
+-
4
NC C NO
NC C NO
NC C NO
NC C NO
NC C NO
NC C NO
NC C NO
NC C NO
+
-
+
-
+
-
+
-
+
-
+
-
+
-
M16/12.P