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MODEL Q-1
Q-1, QD-1
MICROSWITCH (2 REQ'D FOR QD-1)
DRY CIRCUIT MICROSWITCH SPDT 0.1A 125 VAC (OPTIONAL)
3 WIRES W/ CRIMPED TERMINALS (6 TERMINALS IN QD-1)
2 SCREWS, NUTS, AND LOCKWASHERS
LEADSCREW
LEADSCREW NUT
SPRING
DIAPHRAGM SCREW
DIAPHRAGM WASHER
DIAPHRAGM PISTON
ORIFICE PIN
BODY CASTING
O-RING
ORIFICE
DIAPHRAGM RING
4 SCREWS & LOCKWASHERS
ROLLING DIAPHRAGM
INSTALLATION INSTRUCTIONS
SPDT 15A 125/250 VAC
CLAMP WASHER
3 SCREWS & LOCKWASHERS
FLUID FLOW SWITCH
ULTRA RELIABLE SINCE 1956
BRACKET
FEEDTHRU SHAFT ASSEMBLY
LOWER BEAM ASSY
SCREW, NUT & LOCKWASHER
PARTS LIST
HARWIL CORPORATION
541 KINETIC DRIVE, OXNARD, CA 93030
TEL: (805) 988-6800 FAX: (805) 988-6804
EMAIL: HARWIL@HARWIL.COM
TERMINAL STRIP (NOT SUPPLIED WITH QD-1)
2 SCREWS, NUTS, AND LOCKWASHERS
COVER CASTING
COVER SEAL AND SCREW ASSEMBLY
STANDOFF
2 SCREWS & LOCKWASHERS
UPPER BEAM ASSEMBLY
SCREW, NUT & LOCKWASHERS
LID CASTING
8 SCREWS & LOCKWASHERS
GASKET
PART SIDE VIEW
CABLE CONNECTOR
TURBULENT
2D
FLOW REDUCTION
5D
MOUNT IN
THREE POSITIONS
P. 1
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Summary of Contents for Harwil Q-1
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Page 1: Installation Instructions
MODEL Q-1 HARWIL CORPORATION 541 KINETIC DRIVE, OXNARD, CA 93030 TEL: (805) 988-6800 FAX: (805) 988-6804 EMAIL: HARWIL@HARWIL.COM Q-1, QD-1 INSTALLATION INSTRUCTIONS MICROSWITCH (2 REQ’D FOR QD-1) SPDT 15A 125/250 VAC DRY CIRCUIT MICROSWITCH SPDT 0.1A 125 VAC (OPTIONAL) BRACKET... -
Page 2: Electrical Wiring
No further creep of the gasket will occur after the second tightening. The Q-1 fluid flow switch is sup- plied with tapped holes for standard ½” pipe. Insert in line with arrow on the side of the casting point- ed in the direction of flow. - Page 3 CLOCKWISE rotation of the adjusting screw changes the microswitch actuation point toward HIGHER flow rates. NOTES: All Q-1 units are factory set at the lower end of the flow range, e.g. the adjusting screw is set at the low flow counter-clockwise position.
- Page 4 7. If the system flow rate is changed, the Q-1 can be adjusted to monitor the new flow rate by turning the adjusting screw in a counter-clockwise direction to the minimum flow position and then proceed- ing as in 4 and 5 above.
- Page 5 MODEL Q-1 HARWIL CORPORATION 541 KINETIC DRIVE, OXNARD, CA 93030 TEL: (805) 988-6800 FAX: (805) 988-6804 EMAIL: HARWIL@HARWIL.COM Q-1, QD-1 IF THE ADJUSTMENT POINT IS AT THE IF THE ADJUSTMENT POINT IS AT THE TOP OF THE LEADSCREW AND THE...
- Page 6 SWITCH POINT RANGE 1.5 GPM 3.0 GPM DRILL ORIFICE AS REQUIRED Model Q-1 is provided with blank orifices which can be drilled by the user to create customized flow set-point ranges, as illustrated above. P. 6 ULTRA RELIABLE SINCE 1956...
- Page 7 MODEL Q-1 HARWIL CORPORATION 541 KINETIC DRIVE, OXNARD, CA 93030 TEL: (805) 988-6800 FAX: (805) 988-6804 EMAIL: HARWIL@HARWIL.COM Q-1, QD-1 PART NAME PART # PART NAME PART # COVER CASTING 20100 FEED THRU SHAFT - ASSEMBLY ONLY 20114 SCREW 129-S...
- Page 8 Inasmuch as these data are based on tests by entities over which HARWIL has no control, HARWIL DOES NOT GUARANTEE AND DOES NOT ACCEPT ANY RESPONSIBILITY FOR THE ACCURACY OF SUCH THIRD PARTY TESTING.
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