Vote for BP.Net for the 2013 Forum of the Year! Click here for more info.

» Site Navigation

» Home
 > FAQ

» Online Users: 504

0 members and 504 guests
No Members online
Most users ever online was 6,337, 01-24-2020 at 04:30 AM.

» Today's Birthdays

Ziggy31984 (40)

» Stats

Members: 75,014
Threads: 248,474
Posts: 2,568,391
Top Poster: JLC (31,651)
Welcome to our newest member, DetectiveIcarus
Page 1 of 2 12 LastLast
Results 1 to 10 of 14
  1. #1
    Registered User
    Join Date
    06-09-2005
    Posts
    57
    Thanks
    0
    Thanked 0 Times in 0 Posts

    comercial grade digital thermostat with nihgt drop for under 100.00

    Thanks to someone else on this site who posted the link to the unit. I am rehashing this because I think it’s useful info. And I have added to it. if i ever find my camera i will post pics.

    You can get a very nice Johnson’s a419 commercial grade thermostat with night drop for less than 100.00 Shipped!
    www.controlsdepot.com click on price and availability.




    Search for JOHA419ABC-1C you get a 6 foot sensor with it. You will have to wire it yourself. i ordered on a Tuesday and it was at my door on a Thursday. (2days) they ship 3 day select. Total cost for the unit with shipping was 56 dollars and change. At the bottom of the page will be a sub listing for a Ranco unit slightly cheaper and I don’t know if it has a night drop setting).



    You will need the following. 2 large wire nuts (orange or red) 1 romex knockout plug clamp. 1 12 foot grounded (3 wire) outdoor extension cord with as many plugs as you need. (Sears has nice ones that don’t have a circuit breaker for 5.99 ((6foot) and 8.99 12foot) a herpstat night drop cord. 32.00 shipped and optional a female mono mini plug cable (used if you don’t want to cut the plug off the night drop cable.



    Here is a document that shows how to wire it up. The only difference is that instead of a single plug we want to put a power strip or multi outlet extension cord on it so we can plug stuff in and control it.


    http://www.zymico.com/thermostat.shtml

    Take the cover off the unit. You will see the connection points like in the guide listed above. Install the romex connector. It has a washer that you unscrew push thru the hole and then screw the washer back on to hold it in place. You can use silicon calk on the outside to seal it if you wish. Cut your extension cord in half or make your cut however you like as long as you have enough wire to connect booth the plug and outlet ends to the control. Strip the outer casing off about 3 inches on both wires (the plug and the strip ends) you should see 3 wires (white black and green.) strip about 1 inch off of each wire. Push them thru the romex connector making sure you have enough to make your connection’s and tighten it down don’t over do it, crushing the wire is a bad idea. Follow the diagram in the link above for the wiring.
    You can cut a section of the cord out to make the jumper wires. If your plug is right next to your tanks, cages you only need a power cord long enough to reach it and place the thermostat control where you want it (within reach of the sensor that is) the sensor is connected to the small terminals at the top left side of the unit. The sensor wire is connected to the middle (com) and bottom + the mini jack plug is connected to the middle com and to bin connection. You don’t have to worry about polarity. Nether the sensor or the night drop circuits are polarity sensitive. (The night drop cable is nothing more than a low voltage relay that closes a binary circuit when power is applied to the relay. Current is not present in the output side of the night drop cable it is only a binary open/close circuit. ) the night drop feature is not listed in the descriptions of the unit. But is found if you read the product documentation.




    Testing your unit



    Needed a glass of water and a bit of time to figure out the menu



    My test is made with the following settings. Set point (SP) 92, DIF 1 anti short protection (ASP) 1 (and 0). OFS 7 and the unit configured to heating mode energized at set point.



    Standard/day mode night drop cable off.



    The Unit comes on under 91 and turns off at 93 with the asp set to 1 it waits 60 seconds before energizing or de-energizing the relay (and you see a flashing asp in the display. If the asp is set to 0 it will turn your heating on and off with out a delay.



    Night drop mode on (Bin is seen in the display.)



    When the night drop is on the bin mode is activated and the OFS setting is subtracted from the main set point. I.e. I set the unit to 92 a dif of 1 and an OFS of 7 the heat is off at 86 and on at 84. I used my hand to raise the temp above 90 and the cool glass of water to rapidly cool the probe temp down. The unit functioned correctly turning the power on and off at the programmed settings. The unit was also left unplugged over a week and remembered my settings.

    cost of the project was about 56.00 for the control. 5.99 For the heavy duty 3 way 3 outlet outdoor power cord (cut in half and you have the plug, outlets and wire.) 2.99 for two min plugs only one is used. .50 For a Romex clamp. 32.00 for the night drop cord (including shipping) and about an hour to wire it and test the unit. Total = 97.48 (shipping included)

  2. #2
    BPnet Veteran Adam_Wysocki's Avatar
    Join Date
    09-26-2004
    Location
    Bel Air, MD
    Posts
    9,027
    Thanks
    58
    Thanked 1,029 Times in 195 Posts
    Images: 1

    Re: comercial grade digital thermostat with nihgt drop for under 100.00

    Quote Originally Posted by Merchant
    www.controlsdepot.com click on price and availability.
    Wow ... what timing! ... Controls Depot went out of business today! ... LOL

    Since they're gone, you can always call Matt @ www.mgreptiles.com for all of your thermostat needs .... he'll do the "grunt work" for you and get you a great thermostat at a great price!

    -adam
    Click Below to Fight The National Python & Boa Ban




    "The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing."
    - Anna Sewell, author of Black Beauty


  3. #3
    Registered User justcage's Avatar
    Join Date
    08-24-2004
    Posts
    993
    Thanks
    1
    Thanked 1 Time in 1 Post

    Re: comercial grade digital thermostat with nihgt drop for under 100.00

    Rancos and JC's dont have a night drop CAREFUL CAREFUL
    Just a reptile lover!!!!!

  4. #4
    BPnet Veteran Adam_Wysocki's Avatar
    Join Date
    09-26-2004
    Location
    Bel Air, MD
    Posts
    9,027
    Thanks
    58
    Thanked 1,029 Times in 195 Posts
    Images: 1

    Re: comercial grade digital thermostat with nihgt drop for under 100.00

    Quote Originally Posted by justcage
    Rancos and JC's dont have a night drop CAREFUL CAREFUL
    See!!!! .... This guy knows his poop!!

    Are you going to Daytona bra?

    -adam
    Click Below to Fight The National Python & Boa Ban




    "The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing."
    - Anna Sewell, author of Black Beauty


  5. #5
    Registered User justcage's Avatar
    Join Date
    08-24-2004
    Posts
    993
    Thanks
    1
    Thanked 1 Time in 1 Post

    Re: comercial grade digital thermostat with nihgt drop for under 100.00

    Yes sir I am , ill be there on Saturday... WOOO HOOOO
    Just a reptile lover!!!!!

  6. #6
    BPnet Veteran Adam_Wysocki's Avatar
    Join Date
    09-26-2004
    Location
    Bel Air, MD
    Posts
    9,027
    Thanks
    58
    Thanked 1,029 Times in 195 Posts
    Images: 1

    Re: comercial grade digital thermostat with nihgt drop for under 100.00

    Quote Originally Posted by justcage
    Yes sir I am , ill be there on Saturday... WOOO HOOOO
    dude ... you've got to track me down at some point to say hi ... I'll bring night crawlers and crickets for you!

    -adam
    Click Below to Fight The National Python & Boa Ban




    "The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing."
    - Anna Sewell, author of Black Beauty


  7. #7
    Registered User justcage's Avatar
    Join Date
    08-24-2004
    Posts
    993
    Thanks
    1
    Thanked 1 Time in 1 Post

    Re: comercial grade digital thermostat with nihgt drop for under 100.00

    hahahahha right on.. You vending or just shopping?
    Just a reptile lover!!!!!

  8. #8
    BPnet Veteran Adam_Wysocki's Avatar
    Join Date
    09-26-2004
    Location
    Bel Air, MD
    Posts
    9,027
    Thanks
    58
    Thanked 1,029 Times in 195 Posts
    Images: 1

    Re: comercial grade digital thermostat with nihgt drop for under 100.00

    Quote Originally Posted by justcage
    hahahahha right on.. You vending or just shopping?
    No vending ... hanging out and catching up with friends mostly ... but I always have cash with me, so you never know

    -adam
    Click Below to Fight The National Python & Boa Ban




    "The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing."
    - Anna Sewell, author of Black Beauty


  9. #9
    Registered User
    Join Date
    06-09-2005
    Posts
    57
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: comercial grade digital thermostat with nihgt drop for under 100.00

    sorry i didnt check if the link was still live. i bought mine two weeks ago. as for the night drop. htye might not call it that but it sure acts like one. i took a standard herpstat drop cord. connected it to the binary input part of the temp sensor and set it to drop the temp 7 degrees when on. then i tested the setings and sure enough when on the unit only heats to the lower seting. when off it heats to the higher seting. if thats not a night drop what is? im an engineer i test everyting i do before making any claims. read the a419 operatinal and instalation guide. page 4

    http://www.froztec.com/manual125188.pdf

    Temperature Offset Function

    The Temperature Offset function shifts Heating

    setpoint lower and Cooling setpoint higher by the value

    in the Temperature Offset.

    The Temperature Offset is activated by closing a

    circuit between BIN and COM. (See Figures 7, 8, or 9.)

    The BIN and COM terminals may be connected to a

    user-supplied external switching device, such as a

    time clock, that has a set of SPST contacts.

    This option enables the control to alternate between

    two temperature setpoints based on the position of the

    binary input switch. The number of degrees added to

    or subtracted from Setpoint is established in the

    Temperature Offset function (OFS) using the keypad,

    as described in Setting Other Functions.

    Table 1 shows an example of the effect of the

    Temperature Offset function when it is active.

    activated.


    also this place has them for 5.00 more.
    http://www.webshop1.com/merchant.mv?...n-ElecControls

  10. #10
    Registered User justcage's Avatar
    Join Date
    08-24-2004
    Posts
    993
    Thanks
    1
    Thanked 1 Time in 1 Post

    Re: comercial grade digital thermostat with nihgt drop for under 100.00

    Differential or offset.. It will just allow the temp to swing on way or the other.. An actual ND will goto X degrees and stay there Oh and the Best and cheapest place to get them is below
    http://www.mgreptiles.com/johnson1.html
    Just a reptile lover!!!!!

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBadvanced CMPS v4.2.1