SYSTEM CONTROL INSTALLATION, OPERATION AND SERVICE MANUAL
1.4.2Electrical Installation Materials
120V, 60 Hz, 1 Ø, 20 A, power supply to the control panel must be installed in accordance with the most current National Electrical Code®, local codes and any site specific diagrams.
Total load powered by the panel must not exceed 20 A. Loads totaling more than 20 A must be powered from an additional power supply circuit by the use of a load relay package.
1.4.3Outside Air Supply Blower
If used, the optional outside air blower is to be con- trolled in parallel with the pump. The blower incorpo- rates a pressure switch which must be wired in series
with the pressure switch on the pump. The load relay package may be required with the blower. See Page 10, Figure 8 for wiring detail.
1.4.4Pressure Switch
Apressure switch (P/N 90430600K), is required for installation on the inlet of the pump. This switch is required to interlock the operation of the pump with 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.
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