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Delay
timer for motor or pump/ 120Volt to 240Volt Resource: safe electric wiring |
Multimeter Test for breaks in wire/ Test for voltage Most appliance require 80% rated voltage to function correctly Buy Analog multimeter Multimeters at Amazon Klein multimeter Electric testers at Amazon Clampmeter for testing amp flow on line Resource: How to test and replace element How to test thermocouple Element tests for 120 volts How to test wire |
Safety
when testing wires:
Never touch wet or previously flooded appliance. Never stand on wet surface when working on electric. Never stand on bare soil, put down dry boards. Tape tester leads to wood sticks to keep hands away from power. Use non-contact voltage tester before touching wires. Never touch or lean into any made of metal. Remove metal objects from pockets. Do not use oxygen or fuel accelerants in same room as electrical repairs Resource: Basic house wiring |
 Non-contact voltage tester Test for power without touching connectors NEVER assume power is OFF Buy: Non-contact voltage tester Amazon Electric testers at Amazon Resource: How to test electric power is off |
 120 volt 15 amp devices
including GFCI, timers, switches, plugs, wifi controls etc can be
installed on 15 or 20
amp
breaker.120 volt GFCI, outlet, receptacle that is rated 20 amp can be installed on 20 amp breaker only, but NOT on 15 amp breaker. Buy 15 amp GFCI 20 amp GFCI |
Buy Basic electric book Home plumbing/ electrical codes  Or learn about basic household electricity... use and search my site/ Resource Safe electric wiring Basic house wiring |
 Use outlet tester to check for correct wiring on any 120 volt straight-blade outlet. Buy: Klein testers Outlet tester Circuit breaker finder Electric usage monitor |
Twist-on wire connector assortmentsDo not reuse old connectorsTwist wire connector very tight. Pull wires to ensure they will not come loose. Cover all bare copper. Buy: Connector assortment at Amazon Connector assortment at Amazon Resource How to select and install twist-on wire connectors |
 Electrical tools must be insulated. Always best to disconnect power, but insulation failure, lack of proper grounding, grounded neutral, lack of GFCI, out-of-code wiring, generator operating without transfer switch, and other problems still pose a risk to anyone working on electric power ... even when breaker is off. Buy: Electrician tools kits Klein tools Tools kits |
Connect wire to screw terminal Use only 600 volt solid copper wire. Do not use stranded wire or extension cord. Do not use solder anywhere on residential 120-240 volt wiring. Attach electric installation to structure. Tighten screws very tight against wire.  Buy: NEC books Dewalt plumbing/ electrical codes Basic electric book National electric code guide/ illustrated Resources: How to twist wire How to select and install twist-on wire connectors |
 Weatherproof
lever switch on outdoor lightsSafely operate outdoor toggle switch Replaces outdoor cover Install over top of ordinary switch Works with single-pole, double-pole, 3PST, 3-way, 4-way switches etc Use weatherproof box for outdoor Can be used indoor or outdoor Buy: Best choice: Cantex lever switch Outdoor lever switches at Amazon Lever switches Resource Cantex-toggle-switch-covers.pdf Cantex-PVC-junction-boxes.pdf |
Buy: |
Push-on wire connectors in place of twist-on connectorsBuy:Push on wire connectors Amazon Red 3P connector for 10-14 gauge wire Lever connectors for stranded wire at Amazon |
 Use nipper instead of pliers or screwdriver for removing staples (and nails). Do not damage cable or wires inside cable. Code -Cable SHALL BE secured without damage to the outer covering. NEC sec. 336-15 Buy End cutting nippers at Amazon |
   When removing insulation from wire, do NOT score or put cuts on surface of copper wire. Doing so increases resistances on wire and creates weak point. Buy tools: Wire strippers at Amazon Linesman pliers Pro linesman plier Needle nose pliers End cutting nippers at Amazon |
 Weather resistant plastic box for outdoor extension cord connections, Christmas lights, outdoor power strip etc . Not for connecting wires with wire nutsŪ, or in-wall wiring, but can be used indoors to organize extension cords, power strips etc. Weather resistant is not weatherproof or watertight. Use enclosures rated IP65 and IP67 for waterproof. Extension cords cannot be used for permanent wiring. Buy: Large-medium-small electric cord box Socketbox Raintight enclosures Water-tight cord lock Resource: Enclosures and boxes |
 For 120-240V cut blue jumper wire located on front of timer between terminals Adjustments less than 30 seconds might not be possible 2" x 2" size |
Start
motor or pump with delay 1.8 second to 10 minute Delay on make: Time delay begins when power is applied to input. After delay, load turns ON and stays ON until power is turned OFF. Buy 120-240 Volt delay ON: ICM 102 / 18-240VAC 1.5 amp load Amazon Packard 102 Buy: contactors: Packard contactor with 24Volt coil 120Volt coil 240Volt coil Resource: ICM 102 delay ON timer manual .pdf More contactors Terminals Fuseholders Enclosures |
 For 120-240V cut blue jumper wire located on front of timer between terminals Adjustments less than 30 seconds might not be possible |
Turn
on 2nd motor after another motor starts
Delay on make: Turn on pump after another pump starts Turn on 1 motor before another motor 120Volt or 240Volt In-line fuse protects on-delay timer Load 1 Turns ON when switch or timer turns ON. Load 2 turns ON after delay Reason for this system might be to reduct initial load on circuit so motors do not pull starting amps at same time. Another reason is that one pump feeds water to second pump. Second pump should not start until water arrives from first pump. |
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Elko
delay timer/
Multifunction Delay on make: On-delay, Load turns ON and stays ON after delay period. Other applications for timer .. wiring not illustrated here: Off-delay, repeat cycle, delay on break, pulse generator, latching, single shot. Input voltage 12V - 240 volt (50-60 Hz) Indicator lights .1 seconds to 10 days Buy: Elko delay timer Migro delay timer Migro relays and timers Resources: CRM-93H 10-function CRM-91H 10 function CRM-82 two-function |
| AH3 24 volt 10 amp LY2 relays LY3 relay 120 volt LY2 120 volt MY2 AH3 24 volt 60 second AH3 24 volt 10 minute Baomain delay timers Baomain relay |
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ON
Delay Delay on make: Illustration shows ON delay wiring for 120 V. On delay means the load turns ON after delay period expires. Load remains ON until power is off. Example uses ST01 timer as switch. (Or use Ei600... same timer except 5-year warranty) ST01 Timer can be set for dusk-dawn. Automatically turns lights ON at night, and off at dusk. ST01 Timer automatically adjusts for seasonal changes. ST01 Timer can be adjusted 20 minutes longer or shorter than actual dusk-dawn However some folks want longer delay before lights turn ON at night How it works: ST01 Timer turns ON. AH3 timer receives power. Time delay countdown begins. After delay period expires, light turns ON, and remains ON until ST01 timer turns OFF Cycle repeats next time the ST01 timer turns ON. Buy: AH3 timers Intermatic ST01 timer Ei600 timer CR2 replacement battery Resources: More wiring diagrams/ How to wire AH3 |
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One-shot timerPrecise digital controlSet mode for one-shot For on delay: Apply power to terminals 9-10, and normally closed terminal 6 remains OFF until time expires. and then terminal 6 turns ON until power is cut. For off delay: Apply power, and normally open terminals turn ON for set time, and then remain off until power is cut and applied again. This can be operated with a Normally closed push button that applies continuous power to the timer mechanism. When the push button is pushed, it starts the delay time circuit for the set duration of time. Time durations: .01 seconds to 99hour99 minutes (4.16 days) Repeasts each time power is applied again. 1/2 Hp @ 120 Volt 3/4 Hp @ 240 V 100-240 volt AC/DC input terminals are separate from output terminals Buy: B3S one-shot timer Resource B3S timer manual Options for Motor driven countdown timer |
 Reduce run-time of motor or air
conditioner.Problem: air conditioner runs too much during peak electric prices. Programmable thermostat for the air conditioner can control peak usage by raising temperature and reducing hours of operation during peak times, but it cannot be programmed to limit actual number of run-time minutes per hour. This diagram solves problem without compromising integrity of AC motor or equipment. The din rail timer is programmed so timer is ON during peak hours. Any programmable timer will do the job but din rail timers are available in both 120 and 240 volt models. And 12-24 volt also. When the din rail timer is ON, it turns ON a relay, and turns ON a twin timer. When the din rail timer is OFF, the relay is OFF and the twin timer is OFF. One of the 24 volt wires from thermostat is connected to the com terminal on one side of relay. When the din rail timer is OFF, the relay is OFF, and the 24 volt thermostat circuit is routed straight to the contactor for normal operation of air conditioner. When the din rail timer is ON, the relay is ON, and it switches the 24 volt thermostat wire away from contactor and to the Twin timer. The twin timer is rated for either 120 or 240 volt. Twin timer is designed to turn on-off-on-off-on-off in endless repeat cycle. ON times and OFF times are set independently, and can be any value between .01 second and 99.99 hours. For example, the twin timer ON time can be set for 40 minutes. And OFF time set for 20 minutes. This limits the operation of air conditioner to 40 minutes. During the 40 minute period, the twin time routes 24 volts to the air conditioner contactor for normal operation. After 40 minutes, the twin timer cycles OFF, and then air conditioner cannot turn on for 20 minutes until the twin timer cycles back ON again. When the 20 minutes expires, the twin timer again lets the 24 volts complete circuit to contactor for 40 minutes. The cycle of 40 ON and 20 OFF continues as long as din rail timer is ON. Set the din rail timer to turn ON during peak electric prices. Illustration on right shows same diagram except pulling power off the 240 volt AC circuit. Use 10-15 amp inline fuse to protect timer and relay circuit from 50-60  amp
air conditioner circuit. Use terminals to connect the smaller wires to
contactor. Prevent loose connection and risk of fire: Do not put two
different gauge wires under the screw plate on contactor. Never put
stranded wire under screw plate.Buy: 120-240 volt THC15 din rail timer 120 volt LY2 relay 240 volt relay 120-240 volt Twin timer HVAC contactors Inline fuse holders Din rail fuse holder Resources: How to wire twin timer Din rail timers and manuals Relays and contactors |
 Use
in-line fuse when connecting 2 different gauge wiresIllustration shows smaller 12-2 cable connected to larger 10-3 cable. The 10 gauge wire carries 240 volt plus a Neutral wire, and is protected by 30 amp breaker The amp draw on 30 amp breaker is too large for 12 gauge wire. 12 gauge wire should have 20 amp breaker. Connect
smaller
12 gauge wire to 10 gauge wire using twist on wire connector. All
connections must be inside electrically rated enclosed box with cover.
Use fuseholder with 20 amp fuse.Fuse will protect entire length of 12 gauge wire. Connect fuse to Hot wire. Never put fuse on Neutral ... the Neutral wire must never be switched off, and must run continuous throughout installation. If the 12 gauge wire is wired for 240V, instead of 120V shown in illustration, then fuses can be added to both hot wires. Always make connections inside a box with cover Buy: Panel mount fuse holders at Amazon ANL fuseholder Buy fuseholders Din rail fuseholder 10 x 38 mm fuse Electrical terminals Solder guns Resource: Fuseholders |
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How
to wire WeMo switch WeMo allows programming via smart phone Do not use stranded wire under screw plates Buy from my affiliate links: WeMo switch Contactor with 120 volt coil 6x6x4 Box to install contactor Resources: WeMo switch and module wiring Illustrations of contactor wiring Select correct wire and breaker size Contactors  |
 Skylink wireless countdown |
Skylink
wireless programmable or countdown Countdown is same as off-delay: load turns ON immediately and turns OFF after delay period ends. Estimate 1/3 Hp Grundfos pump is 1/25 Hp 120V 60 Hz/ 10 watt minimum/ 1500 watt Operate as ON-OFF or Countdown device/ Up to 500 feet 15 minute - 60 minute countdown Buy: Wireless wall mount transmitter TB-318 Wireless countdown receiver PA-318 Transmitter and receiver Resource: PA-318 manual |
 Larger imageLoad Max load on off-delay timer is 10 amp. Suggest using contactor to preserve life of timer How it works: Push doorbell button. Activates timer. Timer turns ON and begins countdown. Timer terminals 7 and 8 are ON. This causes contactor coil to energize. Circuit to recirculation pump is ON. When countdown expires, terminals 7 and 8 are OFF, contactor coil is de-energized, pump turns OFF. Twin timer can be set to one-shot mode, and with 120-240V, and operate .9 seconds to 99 hours. So the pump can run any length of time: 1 hour or 21 minutes etc. Do not connect power to terminals 1-5. How to wire twin timer Buy: Project materials: Twin timers at Amazon Sestos twin timer Omron DH48S twin timer Example 50' thermostat wire at Amazon Contactor with 120Volt coil At Amazon More contactor illustrations More off delay and pin timer illustrations Normally open Push button |
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ST01C timer controls 120Volt delay-off-timer Activate off-delay timer using push button -or- using ST10 timer Push button, or ST01, activates delay timer. Push button gives momentary on-off to activate delay timer When ST01 turns ON and then OFF, then delay timer activates Delay timer turns Load ON Delay timer begins countdown. When countdown expires, delay timer turns Load Off Buy from my affiliate links: 6A855 Solid State timer 11-pin plug-in base Contactor with 120volt coil ST01 battery-operated timer Resource: 6A855 Manual More off-delay timers |
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Operate
recirculation system remotely from 1-2-3+ different locations How it works: Do NOT connect voltage to bell wire going to push buttons Buy delay timer and base Connect 120volt Hot and Neutral wires to base as illustrated. Buy thermostat or bell wire and connect to push buttons as shown The push buttons receive no voltage or power... do not connect to power source. Plug timer into base. Choose delay time from .05 seconds to 999 seconds Push doorbell button. Activates timer. Timer turns ON and begins countdown. Pump turns ON and runs until countdown stops. Countdown is off-delay. When countdown expires, timer turns OFF, pump turns OFF. Delay timer rated 1/3 Hp.... recirculation pump rated 1/25 Hp Buy project materials: Example 50' thermostat bell wire 6A855 Solid State timer 11-pin plug-in base Push button plate Amazon Resources Other countdown timers More off delay and pin timer illustrations 6A855 Manual |
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Remote
control countdown timer Buy: 6A855 Solid State timer 11-pin plug-in base General purpose relay Woods 32555 GE Wireless remote controls Replacement A23 battery Select recirculation pump Resources: See analog plug-in timers See remote controls Water heater recirculation system |
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Control motor with 2 switches Same wiring diagram applies to single-pole switch Contactor with 240Volt coil Buy: 240Volt coil Start winding pulls more amps than switch can safely handle. Over time, the switch will fail. Contactors are rated for heavy amp loads, with expected life of millions of operations |
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use
miniature relay instead of contactor. The wiring is not illustrated, so
let me know if you want specific illustration. Resource: Zetter-relay-wiring.jpg Buy: contactors: Packard contactor with 24Volt coil 120Volt coil 240Volt coil |
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Terminals:
Crimp terminals onto stranded wire Solder terminals onto solid wire Buy: Terminal kit Blue terminals for 16-14 gauge wire Yellow 12-10 gauge female terminal 16 pcs |
 6X6X4 Metal box w/ Contactor  6x6x4 Plastic box |
Buy
6x6x4 junction box Plastic box and metal boxes Available home center/ electric supply house/ or online Buy: 6x6x4 plastic box: no pre-drilled holes... must drill holes for Wire connections, 1/2" hole for fuseholder, 3/16" holes for bolts to hold contactor, plastic box does not need ground screw connected to box Cantex 6x6x4 PVC plastic enclosure with cover Thomas and Betts 6x6x4 plastic with cover Bud industries 11x7x5 box without knockouts Buy: 6x6x4 Metal box: has knock-outs for 1/2 and 3/4" ... must drill 1/2" hole for fuseholder, bolt holes to hold contactor, threaded holes for 10-32 ground screw, metal box must be grounded. Raco 6x6x4 metal pull box with cover and knock-outs Raco 6x6x4 metal pull box with cover and knock-outs RACO outdoor 6x6x4 box with bottom knockouts Wiegmann 67x6x4 pull box with knockouts on 4 sides Hoffman 6x6xx4 pull box with knockouts on 4 sides Buy 6x8x4 metal box Bud industries 6x8x4 box with hinged door Bud industries boxes Resource: See more about boxes |
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Buy
inline fuseholder and ceramic fuse to protect timer from overload Buy: Panel mount fuse holders ANL fuseholder Buy fuseholders Ceramic fuses Din rail fuseholder 10 x 38 mm fuse Resource: Read about fuseholders |
| Use only 600 volt wire. Lamp cord, extension cords are not rated 600 volt. Use copper wire only. Aluminum wire is fire risk and should be avoided or installed by professional. 30 amp breaker use 10 gauge / 120-240 volt 30 amp outlet can be installed on 30 amp breaker only/ use 10 gauge wire ... cannot be connected to 15-20-40 amp breaker.  Orange/ #10 gauge wire, with ground ... 30 amp capacity. Safe maximum: 30 x 80% = 24 amps. Buy: 10-2 gauge/ 30 amp 10-3/ 30 amp Southwire electric tools |
Yellow
12 gauge 20 amp 120 volt 20 amp outlet can be installed on 20 amp breaker, but not 15 amp breaker/ use 12 ga wire. ... cannot be connected to 30-40 amp breaker.  Yellow/ #12 gauge wire, with ground ... 20 amp capacity. Safe maximum 16 amps. Buy: 12-2 gauge/ 20 amp 12-3/ 20 amp NMB is house wiring UF is underground Rolls of stranded wire |
White
14 gauge 15 amp 120 volt 15 amp outlet, AFCI, GFCI, timer, switch etc can be installed on 15 or 20 amp breaker. Never connect 15 gauge wire to 20-30-40 amp breaker.  White/ #14 gauge wire, with ground ... 15 amp capacity. Safe maximum 12 amps. Buy: 14-2 gauge/ 15 amp 14-3/ 15 amp NMB is house wiring UF is underground |
| 50-60
amp breaker use 6 gauge / 240 volt 50 outlet can be installed on 50 amp breaker only  Buy: 6-2 wire Southwire electric tools NMB is house wiring UF is underground |
40-50
amp breaker use 8 gauge / 240 volt 40 amp outlet can be installed on 40 or 50 amp breaker only  Buy: 8-2 wire Southwire electric tools NMB is house wiring UF is underground |
  Copper ground wire. Every device, load, metal enclosure etc must be grounded. Ground wire must be continuous throughout installation, never switched on-off, never used as a Neutral wire. Generally ... use same size as other wire in circuit Buy: 12 gauge copper ground wire Ground wire Green ground wire Ground pigtails Ground rods/ ground clamps at Amazon |
 Armored cable can be used as a grounded connection, and will protect wires from damage. Metal can be energized from an insulation failure. Non metallic flexible cables must carry ground wire, but does not have hazard of short circuit causing injury from shock. All conduit ...metal, plastic ... flexible and rigid ... must be attached to structure, and attached to enclosures, boxes. Movement, damage and deterioration are major cause of electrical failure. Buy: Armored cable Southwire armored cable cutter Non-metallic flexible conduit Power whip Pull boxes |
Electrical tools must be insulated. Always best to disconnect power, but issues of insulation failure, lack of proper grounding, lack of GFCI, out-of-code wiring, generator operating without transfer switch, and other problems pose a risk to anyone working on electric power. Buy: Electrician tools kits Klein tools Tools kits |
 12 ga Stranded wire is good for conduit with multiple wires ... but stranded cannot be installed under screw terminals on outlets, switches, timers etc without risk ... of heat causing splayed strands ....that come loose ... and begin to arc. Connect stranded to short piece of solid copper wire, and attach solid to screw terminal. Do not solder residential or commercial wiring. Buy: Rolls of stranded wire |
Protect wiring from damage Use nipper instead of pliers or screwdriver for removing staples (and nails). Do not damage cable or wires inside cable. -Code says: Cable SHALL BE secured without damage to the outer covering. NEC sec. 336-15 Buy End cutting nippers at Amazon |
Electrically insulated tools When removing insulation from wire, do NOT score or put cuts on surface of copper wire. Doing so increases resistances and heat on wire and creates possible weak point. Buy tools: Wire strippers at Amazon Linesman pliers Utility knife at Amazon |
 Multimeters Voltage is tested across two separate wires. Ohms or resistance is tested across both ends of same wire. Amperage is tested along one or two points on same wire. Buy: Analog multimeter Multimeters at Amazon Klein multimeter Electric testers at Amazon Clampmeter for testing amp flow on line |
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Buy Industrial electric Industrial supplies Tools and home improvement Home and garden Hayward pool Pentair pool Southwire electric |
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Buy
Tools DEWALT Black and Decker Stanley SKIL Makita Porter-Cable Bosch Irwin Hand tools Klein hand tools Fluke electrical testing Dremel hobby tools Campbell Hausfeld air powered Tekton automotive Powerbuilt automotive Saws and saw blades |
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Resource: Compare box timers DPDT timers Intermatic Control water heater w/ Z-wave |
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Resource: Intermatic control centers: and parts Digital control centers and parts Tork control centers and parts Subpanels All control centers and parts Enclosures |
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Resource: Programmable timers Countdown timers Off delay timers On delay timers Timer modules Din rail Twin & one-shot Woods Intermatic Tork |
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Recirculation systems |
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