Roberts Gorden System Control, Installation & Operation Manual

Page: 8 / 24

S
YSTEM
C
ONTROL
I
NSTALLATION
, O
PERATION AND
S
ERVICE
M
ANUAL
2
1.4.2 Electrical Installation Materials
120 V, 60 Hz, 1 Ø, 20 A, po w er s u pply to the control
panel m u st be installed in accordance w ith the most
c u rrent National Electrical Code
®
, local codes and
any site specific diagrams.
Total load po w ered by the panel m u st not exceed
20 A. Loads totaling more than 20 A m u st be
po w ered from an additional po w er s u pply circ u it by
the u se of a load relay package.
1.4.3 O u tside Air S u pply Blo w er
If u sed, the optional o u tside air blo w er is to be con-
trolled in parallel w ith the p u mp. The blo w er incorpo-
rates a press u re s w itch w hich m u st be w ired in series
w ith the press u re s w itch on the p u mp. The load relay
package may be req u ired w ith the blo w er.
See Page
10, Figure 8
for w iring detail.
1.4.4 Press u re S w itch
A press u re s w itch (P/N 90430600K), is req u ired for
installation on the inlet of the p u mp. This s w itch is
req u ired to interlock the operation of the p u mp w ith
the control panel.
CAUTION
Product Damage Hazard
Pressure switch must be installed on all
ROBERTS GORDON
®
systems to ensure
safety and operation.
System will not operate without pressure
switch.
Failure to follow these instructions can result
in product damage.