MARLO MR-210-2 - Page 10

MR 150M–1050M SINGLE – MXIII CONTROLLER
SYSTEM INFORMATION
7
TUBING DIAGRAM - VALVE NEST - MULTITANK - PARKER SOLENOID
Note: All valves normally open except optional valve 2A.
1
3
2
Flow
Solenoid Energized
1
3
2
Flow
Solenoid De-energized
Energized To Close TheNXTStagercontrolcanoperateanoptional24VAC solenoidtocontrolwhenatankisoffline.Thissolenoidis electricallyconnectedtothe"lowerdrive"connectiononthe circuitboard,andcontrolpressureisrunthroughthesolenoid totheserviceoutletdiaphragmvalve. Thesolenoidinstalledatthefactoryisauniversaltype.Itis plumbedinanenergizetocloseconguration. WhenatankentersRegenerationorStandbythesolenoidis energized.Pressurefromsolenoidport1passestoport2.The diaphragmvalve#2willclose. WhenatankentersInServicethesolenoidisde-energized. Theinletpressuretosolenoidport2isstopped.The diaphragmvalveisventedthroughsolenoidport2toport3 (drain).Thevalve#2opens.