Add time delay fan to boiler
Boiler rooms get hot when boiler is ON.
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Add vent fan to boiler Add time delay fan to boiler Boiler rooms get hot when boiler is ON. |
| 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. 1  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 HOOK UP Wires |
 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 |
 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: 1000 volt Tool kit Electrician tools kits KLEIN TOOLS Tools kits IRWIN tools KNIPEX Telephone cable knife Low Voltage Mounting Bracket for Telephone |
 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 resistance and heat on wire and creates possible weak point. Buy tools: KLEIN TOOLS Wire strippers at Amazon Electric Wire Stripping Machine Linesman pliers Utility knife at Amazon |
 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: Cantex lever switch Leviton lever switch Outdoor lever switches at Amazon Resource Cantex-toggle-switch-covers.pdf Cantex-PVC-junction-boxes.pdf |
Weatherproof wire connectorConnector cavity is full of siliconeBuilt-in cover keeps silicone in place Protect from water, dust etc Buy from my affiliate links Weatherproof size 14 to 6 Amazon Weatherproof size 22 to 8 Amazon Resource How to select and install connectors |
 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 |
 Weatherproof
outlet coverSafely use extension cord with weather resistant cover Buy: Outlet covers |
 Weatherproof
boxFor adding outdoor wiring Drill through back of indoor box, and through wall to install new outdoor outlet. Buy Hubbell Bell PVC box Hubbell Bell aluminum box |
| Use a delay timer | |
 Add
vent fan to boiler circuit so fan runs when boiler is ON.
When boiler turns off, vent fan continues running for period of time, then turns off. AH3 off delay, 0-60 minute delay Use same design to provide air to Heat pump water heater General purpose relay with NO NC contacts needed. Relay coil voltage that can be controlled by boiler... for example 24 VAC etc Boiler turns on.... relay turns ON Fan turns ON Boiler turns OFF... relay turns OFF Delay countdown begins Fan continues to run Fan turns OFF when countdown ends Resources: How to wire twin timer How to wire off delay timer Override thermostat with programmable timer |
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Buy
from my affiliate links: General purpose relay AH3-3 delay timer at Amazon Through wall fans |
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| Use a temperature controller |
 Larger image Use a temperature controller Tape or attach temperatur probe to boiler pipe Input 120 volt Hot to terminals 8-9, Neutral to terminal 10. Output 120 volt Hot from PID terminal 7 to relay terminal 7. Output Neutral from PID terminal 10 to relay terminal 8. Buy: PID Temperature controllers Digital temperature controller Resource PID manual |
| The fan
circuit is 120 volt. The Hot
wire is connected
to COM6 on Boiler Relay. Neutral is connected to Fan and to Timer
terminal 7. When 120 volt Hot is applied to Timer terminal 2, it energizes the delay Timer ... and energizes Timer terminal 8. When Timer is energized, Terminal 8 sends power to terminal 5 Terminal 5 turns ON and stays ON until delay period ends, at which point terminal 5 turns OFF Lets's say you plug in 120 volt power for the first time. Lets's say the Boiler Relay is OFF. Hot wire for the Fan is connected to 6COM on Boiler Relay. The Boiler Relay is OFF, so power from 6COM travels to 2NC (normally closed) Power from 2NC (normally closed) energizes Timer terminal 2 and 8, which starts delay countdown ... which means Timer terminal 5 is ON and sending power to fan through Boiler Relay terminals 1NC and 8COM When delay period ends, Timer terminal 5 turns OFF so no power goes to Fan ... why? Because terminal 5 is OFF ... ... so that cuts off one path for power to get to Fan through Boiler Relay terminals 1NC and 8COM . And since Boiler Relay is OFF, then no power is getting to terminal 4 NO (normally open) and that cuts off second way for power to get to Fan. When Boiler Relay turns ON .... then power travels from 6COM to 4NO and Fan turns ON 4NO stays on until Boiler Relay turns OFF. When Boiler Relay turns OFF, then relay 4NO is OFF, but 2NC (normally open) turns ON .... power travels to Timer terminals 8 and 2. The sequence starts from top again ... Timer terminal 5 is ON until countdown ends ... then terminal 5 turns OFF ... and Fan turns OFF. |
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 NC normally closed 1-2 are ON when relay is OFF NC normally open 3-4 are Off when relay is OFF NC normally closed 1-2 are OFF when relay is ON NC normally open 3-4 are ON when relay is ON COM 5-6 common terminal Connect power for relay to power terminals 7-8 Buy: 120 volt LY2 relay 120 volt with socket and din rail 240 volt relay Surface Mount Socket |
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Look inside relay reveals
contact points If circuit is not working, then check contact points If incoming power from boiler is 240V, then relay coil must be 240V |
  Terminals Buy: Crimping tool kit Blue for 16-14 wire Yellow for 12-10 wire Ratcheting Crimper Blue terminals for 16-14 gauge wire at Amazon Yellow 12-10 gauge female terminal 16 pcs |
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| Buy 120 volt, 1500 watt Diode 120 volt 600 watt Diode |
Save wiring, install Diode See illustration |
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Humidistat switches Control and/or measure humidity Use to automatically turn on vent fan Buy: Humidistat at Amazon Honeywell 24-120-240 volt 7.5 amp Broan Nutone 24 v 120 v 8 amp Resources DH55 instruction manual |
 Override circuit with Humidistat. High humidity can cause mold and/or general moisture conditions that are harmful to metal, drywall, etc. Vent fan operates with boiler as described above, plus operates independent of boiler when humidity exceeds set point Buy: Humidistats at Amazon AH3-3 delay timer at Amazon Through wall fans |
 Override circuit with Humidistat,
and timer.High humidity can cause mold and/or general moisture conditions etc. Vent fan operates with boiler as described above, plus operates independent of boiler when humidity exceeds set point, .... plus operates independent of boiler and independent of humidistat when timer is activated. Buy: Humidistats at Amazon Spring wound timer at Amazon AH3-3 delay timer at Amazon Through wall fans Resources Compare countdown timer How to wire timers |
 Hybrid heat pump water heater requires 10'
x 10' roomIf you do not have adequate room, then install thru-wall fan to bring fresh air into the room, or vent the air into adjacent room. Running a fan to supply air to meet the needs of heat pump water heater adds energy cost, but saves energy if heat pump cannot get enough fresh air ... why? the heat pump loses efficiency with restricted air flow. The thru-wall fan will improve efficiency and is cheaper than the factory-sold heat pump vent systems. Wires and amp or current switch must be inside enclosed box. Note that the amp switch must be installed on 1 wire in the circuit. Two wires might cancel each other out, and amp switch not activate. Buy: Thru-wall fan at Amazon Current switch/ current transducer 6 x 6 enclosures Resource: Add a delay timer to the fan Which is best hybrid water heater |
 A
current sensing switch can be used to activate Boiler Relay if you want
a delay circuit. Or operate fan each time boiler is ON. Use
with any heater, air conditioner etc.Buy Current sensing switch |
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Resource: Type 1-2-3 surge protection/ wiring and manuals |
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Buy
from my affiliate links every time/ thanks: Amazon ''As an Amazon Associate I earn from qualifying purchases'' Enter Amazon from any link on my site, fill cart with any item ... purchases pay small commission E-mail: geno03245w@gmail.com My response might end up in spam folder, check email folders Waterheatertimer on Twitter Message thru facebook |
