Johnson Controls HVWHP072B32S - External Input;Output and Function Setting Mode for Water Source Unit

SM-18006
5-3
EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING
(2) Water Flow Switch Detection during Water Source Unit Stoppage (DSW5-No.5)
 IfwaterowswitchisON(close)whilethewatersourceunitisstopped(during“Valve/PumpOperation
Request”outputsignalisOFF),thereisafunctiontheunitjudgethedetectionofwateroweven
thoughthereisnowaterowandthecontactofwaterowswitchisfailed(“A2”alarmtriggered).(In
casethecontactofwaterowswitchstaysON(close)whileitisbrokenandthewaterowrateis
insufcientthewaterowswitchdoesnotturnOFF(open)andinsufcientwaterowratecannotbe
detected(“A2”alarm).Thismaycausethecompressorandplateheatexchangertomalfunction.)
Incasethisfunctionisused,waterowduringthewatersourceunitstoppageisprohibitedandwater
circulation for freeze protection and water temperature adjustment is not available.
5.2 External Input/Output and Function Setting Mode for Water Source Unit
● SettingMethod
SettingDSW4onthewatersourceunitPrintedCircuitBoard(PCB)isrequiredfor“ExternalInputand
Output Setting” and “Function Setting”.
< Transition Method >
DSW5-No.5 Water Flow Switch Detection during Water Source Unit Stoppage
ON NotAvailable(Default)
OFF Available
[ External Input/Output Setting ][ Function Setting ]
Start of Setting
After setting, confirm DSW4 setting is the same as the factory setting.
Start of Setting
Turn ON DSW4-No.4 and
turn ON DSW4-No.6.
Exit Setting Mode Exit Setting Mode
Turn OFF DSW4-No.6 during indicated
External Input/Output Setting Mode.
Then, turn OFF DSW4-No.4.
Turn OFF DSW4-No.5 during indicated
Function Setting Mode.
Then, turn OFF DSW4-No.4.
Turn ON DSW4-No.4 and
turn ON DSW4-No.5.