10.7 Motor Type These options replace the recirculation pump’s standard TEFC motor with an upgraded rating • Washdown Duty • Stainless Steel Washdown
10.8 Controls Adding a controls package to the base system allows for start/stop control of the pump and heater control if selected with the Electric Heater to Maintain Temperature option An enclosure houses the components used to control the system and is equipment mounted • The Disconnect with Start / Stop Buttons option package includes the following components: − NEMA 4X rated control enclosure constructed of 304ss with a painted carbon steel back plate − Two (2) Push buttons to start and stop the system − One (1) Motor starter/disconnect for the circulation pump − One (1) Transfomer to convert the incoming 3PH power to other needed voltages − 20-ft SO cord for the incoming electrical connection -- a plug is not included − Conduit (see Section 10.9 for options) • The Disconnect with Start / Stop Buttons and Electric Heater Controller option package includes all the above components as well as: − One (1) Fused disconnect switch (see Table 6 for disconnect sizes) − One (1) Heater controller − One (1) Heater thermocouple amplifier for high temperature shutoff − One (1) Selector switch for auto / off heater control
Table 6: Disconnect Size (Amps) Tank Series and Length 460V AC No Electric Heat
Electric Heat
UW04 UW06 UW08 UW10 UW12 RW04 RW06 RW08 RW10 RW12 PW04 PW06 PW08 PW10 PW12 TW04 TW06 TW08
15 15 15 15 15 15 15 15
30 30 30 30 30 30 30 30 60 60 30 30 60 60 60 30 30 60 60 60
30 30
15 15
30 30 30
15 15
30 30 30
TW10
TW12
NOTE: • Both options require selection of a conduit option (see Section 10.9 ) • Disconnect with Start / Stop Buttons and Electric Heater Controller option requires selection of Electric Heater to Maintain Temperature option • Both options add length (for control enclosure) to the system dimensions
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