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SOLENOID & TIMED DRAIN VALVE WITH FREEZE
PROTECTION START UP PROCEDURE
OPEN MANUAL SHUT OFF ALVE (WV).
1.
2.
WHEN EVAPORATIVE COOLER IS ACTIVATED IT CLOSES DUMP
VALVE (DV). 3 WAY VALVE (TV) OPENS AND ALLOWS FRESH
WATER TO FLOAT VALVE. WATER PUMP (WP) WILL START AS
SOON AS FLOAT SWITCH (FL) CLOSES. WATER PUMP (WP)
SHOULD BE WIRED SO THAT PUMP CANNOT RUN WITHOUT
BLOWER MOTOR IN OPERATION.
3.
FLOAT VALVE (FV) ALLOWS FRESH WATER TO ENTER
RESERVOIR.
TIMER (TM) BREAKS CIRCUIT TO DUMP VALVE (DV) N.O. FOR
4.
DAILY SEDIMENT REMOVAL. 3 WAY VALVE (TV) WILL NOT
ALLOW SUPPLY SUPPLY WATER TO FLOAT VALVE (FV) DURING
CYCLE. TIMER IS SET FOR 1 1/2 HOUR MINIMUM FOR DRAINING
RESERVOIR.
5.
FREEZE STAT (FZ) PROVIDES FREEZE PROTECTION BY
AUTOMATICALLY DRAINING RESERVOIR THRU DUMP VALVE
(DV), AND DRAINING COLD WATER SUPPLY FROM FLOAT VALVE
(FV) THRU N.O. PARTS OF 3 WAY VALVE (TV).
6.
UNIT CAN BE USED WITH BLOWER ON AND EVAPORATIVE
COOLER PUMP OFF.
TO CONTROL
CONTACTS
TO 115 VOLT
BLK
SUPPLY
BLK
TM
TIMER MOTOR
BLK
TERMINALS IN EVAPORATIVE
COOLER.
SOLENOID & TIMED DRAIN VALVE KIT
START UP PROCEDURE
1.
OPEN MANUAL SHUT OFF VALVE (WV).
2.
WHEN EVAPORATIVE COOLER IS ACTIVATED IT OPENS WATER
CONSERVATION SOLENOID VALVE (SV), CLOSES N.O. DUMP
VALVE (DV). WATER PUMP (WP) WILL START AS SOON AS FLOAT
SWITCH (FL) CLOSES. WATER PUMP (WP) SHOULD BE WIRED SO
THAT PUMP CANNOT RUN WITHOUT BLOWER MOTOR IN
OPERATION.
3.
FLOAT VALVE (FV) ALLOWS FRESH WATER TO ENTER
RESERVOIR.
4.
TIMER (TM) BREAKS CIRCUIT TO DUMP VALVE (DV) N.O. FOR
DAILY SEDIMENT REMOVAL. WATER CONSERVATION SOLENOID
VALVE (SV) N.C. WLL NOT ALLOW SUPPLY WATER TO FLOAT
VALVE (FV) DURING CYCLE. TIMER IS SET FOR 1 1/2 HOURS
MINIMUM FOR DRAINING RESERVOIR.
5.
UNIT CAN BE USED WITH BLOWER ON AND EVAPORATIVE
COOLER PUMP OFF.
TO CONTROL
CONTACTS
TO 115 VOLT
SUPPLY
BLK
BLK
TM
TIMER MOTOR
BLK
TERMINALS IN EVAPORATIVE
COOLER
TM1
FZ
YEL
RED
PUMP MOTOR
GRN
CONTROL RELAY
CONTACTS
BLU
WP
PUMP MOTOR
FL
RED
RED
PUMP MOTOR
CONTROL RELAY
TM1
YEL
PUMP MOTOR
GRN
CONTROL RELAY
CONTACTS
BLU
PUMP MOTOR
WP
FL
RED
RED
TIMER
FREEZE
STAT
FL
1/2 NPT
FLOAT
RESERVOIR
VALVE
FV
WATER
NP
LEVEL
COLD WATER
B TV
SUPPLY
WV A
WATER VALVE
BY OTHERS
SOLENOID 3 WAY VALVE, A N.C., C N.O.
DV
TV
TO NEUTRAL
WHT
WHT
WHT
TIMER
FL
1 1/2 NPT
RESERVOIR
FV
WATER
WP
LEVEL
SV
WATER CONSERVATION
SOLENOID VALVE - N.C.
MANUAL SHUT
OFF VALVE WITH
DRAIN PLUG
COLD WATER SUPPLY
FILL VALVE
TO NEUTRAL
DV
WHT
WHT
WHT
PUMP MOTOR
CONTROL RELAY
- 5 -
115 VOLT
1 PHASE
TM
FS
1 1/2 NPT
OVER
FLOW
OF
3/4 NPT
DR
UNIT SUPPORT
BY OTHERS
SOLENOID DUMP
DV
VALVE N.O.
TO BLDG.
DRAIN BY OTHERS
NEEDS LEGEND
__ __ __ __ __ Field Wired
____________ Factory Wired
__ _______ __ Field Piping
115 VOLT
1 PHASE
TM
1 1/2 NPT
OVER
FLOAT
VALVE
FLOW
OF
DR
DV
SOLENOID DUMP
VALVE N.O.
WV
TO DRAIN BY OTHERS
WATER VALVE BY OTHERS
NEEDS LEGEND
__ __ __ __ __ Field Wired
____________ Factory Wired
__ _______ __ Field Piping
ROOF LINE
3/4 NPT
UNIT SUPPORT
BY OTHERS
ROOF LINE
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