Harwil Q-5 Installation Instructions Manual

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MODEL Q-5
Q-5, Q-5SS, QD-5, QD-5SS
SPDT 15A MICROSWITCH 125/240 VAC (2 REQ'D FOR QD-5)
DRY CIRCUIT MICROSWITCH SPDT 0.1A 125 VAC (OPTIONAL)
3 WIRES W/ CRIMPED TERMINALS (6 TERMS. ONLY QD-5)
2 SCREWS, NUTS & LOCKWASHERS
COVER CASTING,
SEAL, SCREW ASSEMBLY
CABLE STRAIN RELIEF
DRAG DISK 1
DRAG DISK 2
DRAG DISK 3
DRAG DISK 4
DRAG DISK 5
DRAG DISK 6
This parts list applies to all models of Q-5 and QD-5 fluid flow switches: Q-5/3, Q-5/7, QD-5/7.
All letters and numbers added to model number after the above numbers apply to optional drag strips

INSTALLATION INSTRUCTIONS

GASKET
BODY CASTING
and electrical strain relief connectors.
FLUID FLOW SWITCH
ULTRA RELIABLE SINCE 1956
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-5)
BRACKET
2 SPACERS
2 SCREWS & LOCKWASHERS
LEADSCREW
LEADSCREW NUT
SPRING
LARGE SPRING
LID CASTING
7 SCREWS & LOCKWASHERS
CLAMP WASHER
3 SCREWS & LOCKWASHERS
FEED THRU SHAFT ASSEMBLY
MODEL Q5/3
MODEL Q5/5
MODEL Q5/7
TURBULENT
2D
FLOW REDUCTION
5D
MOUNT IN
THREE POSITIONS
P. 1

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Summary of Contents for Harwil Q-5

  • Page 1: Installation Instructions

    DRAG DISK 6 MODEL Q5/7 This parts list applies to all models of Q-5 and QD-5 fluid flow switches: Q-5/3, Q-5/7, QD-5/7. All letters and numbers added to model number after the above numbers apply to optional drag strips and electrical strain relief connectors.
  • Page 2: Electrical Wiring

    No further creep of gasket will occur after second tightening. The Q-5 fluid flow switch is supplied with a male 1” NPT which is threaded into an appropriate pipe tee, large pipe with reducer bushing, or directly into a hole threaded 1” NPT in the wall of the pipe. Turn until tight and arrow on body casting is pointed in direction of flow.
  • Page 3: Switch Point Adjustment

    CLOCKWISE rotation of the adjusting screw changes the microswitch actuation point toward HIGHER flow rates. NOTES: All Q-5 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-5 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 Example: If the Q-5 is fitted with a #2 drag disk and procedure 4 has been followed, the adjusting lead screw has been turned clockwise until the lead screw nut is at the extreme end of the support bracket and the microswitch has still not been actuated, then the flow is too low and different drag disk must be substituted and procedure 4 repeated.
  • Page 6 MODEL Q-5 HARWIL CORPORATION 541 KINETIC DRIVE, OXNARD, CA 93030 TEL: (805) 988-6800 FAX: (805) 988-6804 EMAIL: HARWIL@HARWIL.COM Q-5, Q-5SS, QD-5, QD-5SS Q-5 (SERIES 20200) PART NAME PART # PART NAME PART # COVER CASTING 20300 SCREW 152-S SCREW 112-S...
  • Page 7: Certificate Of Conformance

    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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