Stick men
Always bring helpers
Waterheatertimer.org
is a self-help site
Cost to operate water heater Figure Volts Amps Watts for water heater How to wire tankless electric
How to install point of use water heater Point of use water heater
Compare 16 electric and 3 gas water heater timers Troubleshoot Rheem tankless Clean sediment out of water heater
9 ways to save with water heater
How to install recirculation system Point of use water heater
How electric water heater works Troubleshoot electric water heater Troubleshoot-gas water-heater Troubleshoot Bosch tankless Do-it-yourself
Home
Search waterheatertimer.org / all results
Search using Find button  

 Tweet button  
Z-wave countdown timer

Horsepower rating on electrical device
Timers,  contactors, switches, etc all have a amperage rating.
Timers intended for use on motor loads also have a horsepower rating
The horsepower rating makes it easy to select correct timer.
But many electrical devices do not have a HP rating, and give only amp rating.
Other devices specify they cannot be used for inductive (motor) loads.
Always read product manual for specifications
Calculate amp rating of motor
Motors use more amperage when starting. This is called inrush and occurs for a fraction of a second. The extra amperage is needed to 'set up a magnetic field surrounding the motor and overcome lack of angular momentum of motor and load.'
Inrush can be calculated within a range using information from the motor nameplate.
The nameplate should show Voltage, Locked Rotor code per horsepower, and HP.
Using NEMA Locked Rotor Code Table, locate letter code that matches motor nameplate. Codes generally follow the alphabet with A having the lowest starting current (current = amps). The range will be two numbers such as 4.5 to 5.6 for letter D.
Multiply each number times 1000, then divide each number by Voltage to find range of inrush per HP.
Off delay timer
Delay timer wiring
How to wire AH3 delay timer

How to wire pin timers
Levitonwireless momentary switch Dayton off delay timer Leviton WSS10-GDW Wireless Momentary Switch
Works with occupancy sensor
Momentary switch can activate delay timer like Dayton shown below
Leviton momentary switch at Amazon
How to wire AH3 delay timer
Support the economy:
Buy water heaters  from my associate links:

50 gallon Gas water heaters at Amazon
40 gallon gas water heaters at Amazon
50 gallon Electric water heaters at Amazon
40 gallon electric water heaters at Amazon
Hybrid / heat pump/ water heaters at Amazon

Resources:
How to install gas water heater
How to install electric water heater
Troubleshoot gas water heater
Troubleshoot electric water heater
Point of use water heaters
Resources:
Troubleshoot Gas valves with manuals
Icon gas valve

How to replace water heater element Waste King disposal
How to wire tankless electric


Install point of use water heater
Titan tankless

Contactors/ relays
Install and troubleshoot garbage disposal Waste King disposal
Programmable timers

Woods timers
surge protection
Anode rods anode rods
Recirculation system

Tankless recirculation
Point of use water heater
Type 1 and type 2 surge protection surge protection
Buy
Industrial electric

Industrial supplies

Tools and home improvement

Home and garden

Hayward pool
Pentair pool

Southwire electric
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
box timers Resource:
Compare box timers
DPDT timers
Intermatic
Control water heater w/ Z-wave
Intermatic control centers Resource:
Intermatic control centers: and parts
Digital control centers and parts
Tork control centers and parts
Subpanels
All control centers and parts
programmable timer Resource:
Programmable timers
Countdown timers
Off delay timers
On delay timers
Timer modules
Din rail
Twin & one-shot
Woods
Intermatic
Tork
Low voltage power packs Recirculation systems
Enter Amazon from my links
Amazon



E-mail: geno03245w@gmail.com
My response might end up in spam folder, check email folders