HVAC

Have HVAC Questions? Ask an HVAC Expert for Answers

Ask an Expert,
Get an Answer ASAP!

HVAC

Where do I wire the thermostat to a Model SCB 150-5 Reznor

Customer Question
Unit heater...
where do I wire the thermostat to a Model SCB 150-5 Reznor Unit heater
Submitted: 1 year ago.Category: HVAC
Ask Your Own HVAC Question
Answered in 3 minutes by:
12/18/2015
HVAC Technician: Tim H., HVAC Professional replied 1 year ago
Tim H.
Tim H., HVAC Professional
Category: HVAC
Satisfied Customers: 3,971
Experience: Experienced in all aspects of HVAC, both residential and commercial.
Verified

Hi, I'm Tim and I'm an HVAC expert here to assist you with your questions. Please provide all information I request as it makes it more difficult to troubleshoot something when I'm not there onsite. Essentially, you become my eyes and ears. Thanks for the opportunity to help. At the end of our dialog, you will have a chance to rate my service, but please wait until we are finished and you're satisfied you have all the information you need.

There will be a low voltage terminal strip on the inside labeled R,C, W and so forth. Can you locate this?

Ask Your Own HVAC Question
Ask Phil Your Own Question
Phil
Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6,022
6,022 Satisfied Customers
Experience: Retired HVAC/ Electrical & Boiler contractor. Industrial

Phil is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.

JimmyBagley, IA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Phil

Phil

Mechanical Engineer

6,022 satisfied customers

Retired HVAC/ Electrical & Boiler contractor. Industrial

Rick Mather

Rick Mather

HVAC Technician

3,133 satisfied customers

35 years experience, HVAC

Matthew

Matthew

HVAC Technician

2,014 satisfied customers

14 years experience in the HVAC field of service, installation, Manual J & D calculations

Kenton Guidry

Kenton Guidry

HVAC Technician

963 satisfied customers

12 years install/service experience.

Brian HVAC Guy

Brian HVAC Guy

HVAC Technician

953 satisfied customers

I have been an HVAC/R mechanic/technician for 30+ years.

Rick Ridley

Rick Ridley

UK Heating Engineer

871 satisfied customers

Retired But have had 30 years on the tools, Ex CORGI

Tom

Tom

HVAC Technician

770 satisfied customers

16+yrs HVAC/R service. Residential Commerical Industrial

< Previous | Next >

Related HVAC Questions
Maybe, just one day. I just installed a reznor udap 150 unit
just one day. I just installed a reznor udap 150 unit heater replacing my old unit heater. it fires up for about 3 minutes then cuts out even though the thermostat is still calling for heat … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
I have a Lennox unit heater and have recently puchast a new
I have a Lennox unit heater and have recently puchast a new circuit board, only upon installation I found that the plug in does not match as it has six plug in as the old one has nine, where can I fin… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
JUST INSTALLED MODINE GAS FIRED UNIT HEATER TO REPLACE OLD
jUST INSTALLED MODINE GAS FIRED UNIT HEATER TO REPLACE OLD ONE WITH PILOT LIGHT. NEW ONE IS ELECTRONIC IGNITION WO WE CAN PROGRAM THE THERMOSTAT. WE HAVE A RTH2300/RTH221 HONEYWELL THERMOSTAT. THERE I… read more
Regan Land
Regan Land
General Manager
Vocational, Technical or Trade Scho
508 satisfied customers
I have a wall unit heater that has a synchronizer and a
I have a wall unit heater that has a synchronizer and a spill switch, gas valve and thermostat.. The spill switch has three wires and the synchronizer has four (two on top and two on bottom) how do I … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
Second opinion] Can anyone provide me with a wiring diagram
Second opinion] Can anyone provide me with a wiring diagram for a Coleman DFAH-084BBSA mobolehome furnace?… read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
HVAC question I am working with a Modine natural gas unit
HVAC question I am working with a Modine natural gas unit heater, Model PAH 180 AF, serial 15012069Z.The fans come on but the unit will not ignite. The igniter has no spark. The unit has a Robertshaw … read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
I have a Reznor natural gas unit heater in my garage. I will
Hi, I have a Reznor natural gas unit heater in my garage. I will set it to heat mode, and a pilot is lit, the main burner will light, but the fan will not start. … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I awant to replace janitrol unit gas fired unit heater can
i awant to replace janitrol unit gas fired unit heater can you help ? … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a custom ac installation i need help with. I have a
I have a custom ac installation i need help with. I have a 1500 sq ft shop with a waste oil heater and no ac. It has a very strong 4200 cfm fan. A friend gave me a 3 ton ac condenser and coil (coil is… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
I have a old Janitrol Unit Heater Product WH-30 that I cant
I have a old Janitrol Unit Heater Product WH-30 that I cant find a wiring diagram for the life of me. I am installing it in my small 2 car shop . I have a few wires that I am unsure of . It appears that there is two sensors inside the unit with a total of four wires - Red, Yellow, Green, Black. Any Idea of how and where to wire this. It look like the previous owner had the yellow and fan motor wire wired together, the green and the other fan motor wired together and the red and black from the sensors wired together. I have been searching for days and cant get any info. Any help would be greatly appreciated. Travis … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
I have a beacon garage heater, ng, 75,000 btu. My hvac guy
I have a beacon morris garage heater, ng, 75,000 btu. My hvac guy came and hooked up the thermostat-old rotary style therm. My heater has 4 terminals for thermostat wires. R g w1 and w2. How many of t… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I just installed a trane uhec 053daca unit in my garage
I just installed a trane uhec 053daca unit in my garage 480v.. Do I need to install a thermostat and if so to what numbers on the elec-ton board. The numbers range from 1 to 10 Thanks… read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
953 satisfied customers
I have a reznor f200 unit heater. It is standing pilot and
I have a reznor f200 unit heater. It is standing pilot and not power vented. I pilot lights fine but when the gas valve clicks to come on, no gas comes out and the pilot dies out. I have replaced the … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a DNP unit heater Model150UHE-1 16 3U S/N 19237 and
I have a DNP unit heater Model150UHE-1 16 3U S/N 19237 and the pilot light keeps going out at night. The unit runs allday ok, but pilot goes out at night. … read more
Phil
Phil
Mechanical Engineer
6,022 satisfied customers
Pearl. I have Armstrong cgha45ae-4 unit heater in my garage.
Hi, pearl. I have Armstrong cgha45ae-4 unit heater in my garage. Sometimes garage is cold and heater hasn't come on, … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a upad75 reznor unit heater and the burner keeps
I have a upad75 reznor unit heater and the burner keeps shutting down, i have 3.5 inchs water at gas valve outlet, 0.1 mily amps from flame sensor and .932 inchs water at the inducer fan neg pressure … read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
I have an older Reznor unit heater that has not been used
I have an older Reznor unit heater that has not been used for a few years due to main line gas pipe failure. Finally got around to replacing the gas line and have confirmed gas to main valve. but cann… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a Reznor unit heater,Model F50-E,installed in 1994.The
I have a Reznor unit heater,Model F50-E,installed in 1994.The unit will not fire at all It does nothing.I crossed the red and white thermostat wires and still nothing?… read more
Tim H.
Tim H.
HVAC Professional
3,971 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x