HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

I have an old Viessman furnace with a Trimatik control. I'm…

Customer Question
I have an old...

I have an old Viessman furnace with a Trimatik control. I'm looking for a replacement room thermostat with night set back option. The thermostat has three connections - can you help please?

Contractor's Assistant: Just to clarify, do you think this is a larger HVAC problem, or something specific to the thermostat?

The thermostat is not functioning.]

Contractor's Assistant: Do you plan on doing the work yourself?

Yes

Contractor's Assistant: Anything else we should know to help you best?

No. Obtaining a true night set back TS with only three connections is the problem.

Submitted: 4 months ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 5 minutes by:
2/6/2018
HVAC Technician: Daniel Plourde, HVAC Technician replied 4 months ago
Daniel Plourde
Daniel Plourde, HVAC Technician
Category: HVAC
Satisfied Customers: 455
Experience: I've been in the HVAC buisness since 2008 working on residential, commercial, and industrial buildings
Verified

hi i am dan i can help you with this. the Viessmann boiler controls have the night set back setting in the control themselves not the thermostat. what is the model number of the controller

Ask Your Own HVAC Question
HVAC Technician: Daniel Plourde, HVAC Technician replied 4 months ago

i will also need the model number of the boiler

Ask Your Own HVAC Question
Customer reply replied 4 months ago
you're right but with a remote sensor, ie. the room thermostat the Trimatik control can be configured to trigger the boiler from the room thermostat. Boiler is VITOLA BIFERRAL-E BE-29. At the moment I cannot even get the boiler to switch on using a standard two connection (24V) thermostat. The boiler will function without the room thermostat.The old thermostat has two manual settings, day time and night time set back - very rare it seems.
HVAC Technician: Daniel Plourde, HVAC Technician replied 4 months ago

i am unable to locate any information about the room sensor. i will open this up to other experts to see if one of them can help you

Ask Your Own HVAC Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a hvac technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Phil Your Own Question
Phil
Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 7,426
7,426 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

7,426 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

Brian HVAC Guy

Brian HVAC Guy

HVAC Technician

1,019 satisfied customers

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

Kenton Guidry

Kenton Guidry

HVAC Technician

963 satisfied customers

12 years install/service experience.

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
My boiler is not running and the display screen is blank. Is
My boiler is not running and the display screen is blank. Is there a number for an authorized repair technician near Bayside, Queens. … read more
Plumbers_Mate
Plumbers_Mate
General Manager
Vocational, Technical or Trade Scho
3 satisfied customers
I have a Buderus GA124 boiler that supplies hot water for my
I have a Buderus GA124 boiler that supplies hot water for my radiant heating system and my hot water tank. The boiler will only start when causing one of the radiant heat thermostats to close. It won'… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a crown boiler model BWC070 that will not fire, it
I have a crown boiler model BWC070 that will not fire, it goes through the pressure switch test and pre purge then returns the pressure switch test. It is not throwing a fault code … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I contacted you yesterday about wiring a new boiler to an
I contacted you yesterday about wiring a new boiler to an indirect DHW with a zone controller. I need to figure out how to wire this correctly with each one of these being a "smart" controlled device.… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
The pilot is out on my Burnham steam boiler. There is no
The pilot is out on my Burnham steam boiler. There is no on/off/pilot there is just an on/off switch on a pilot control box. Nothing I've seen references this type of pilot. Can you pls help me with t… read more
Bill
Bill
Service Mgr
103 satisfied customers
I need a pilot assembly for my boiler and the number of the
I need a pilot assembly for my boiler and the number of the part is 511-330-116 … read more
Phil
Phil
Mechanical Engineer
7,426 satisfied customers
Munchkin boiler not firing. Goes through blower cycle and
Munchkin boiler not firing. Goes through blower cycle and stope with water temp on doisplay. No error codes reported. Unplugged all sensors one at a time and made sure proper error code reported. Al f… read more
Bill
Bill
Service Mgr
103 satisfied customers
Regarding steam boilers wiring to pressure controls and
Regarding steam boilers wiring to pressure controls and switches … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
Having a problem with my Weil Mclain boiler. It's hot but no
having a problem with my Weil Mclain boiler. It's hot but no heat to radiators … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
Buderus GB142 wall hung boiler with in concrete floor
Buderus GB142 wall hung boiler with in concrete floor radiant heat. Boiler Temp is set at 135, the attached AM10 has the target temp point set at 135 as well and the base temp point at 110. On cold da… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a cg5 boiler for my home. The boiler ignites and runs
I have a cg5 boiler for my home. The boiler ignites and runs for 10 seconds or so, turns off for 1 or 2 seconds and then reignites, that happens over and over again for 30 minutes or so and then shuts… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
Crown boiler model # AWI128SNSTPSU NATURAL GAS. Boiler shut
Boiler shut down last night , how do I relight it ? … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
EcoTecplus 428 boiler,after reset boiler not coming on,but
ecoTecplus 428 boiler,after reset boiler not coming on,but pcb has power. … read more
Plumbers_Mate
Plumbers_Mate
General Manager
Vocational, Technical or Trade Scho
3 satisfied customers
Can you refer me to a Weill McLain boiler repairman? Boiler
Can you refer me to a Weill McLain boiler repairman? … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
My crown boiler boiler model no. AWR070ENST2PSU runs for a
My crown boiler boiler model no. AWR070ENST2PSU runs for a short time, shuts down, then takes a long time on start running again. We change the control. the pump, and the gas valve, Don't appears to h… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a question regarding the boiler temperature setting,
I have a question regarding the boiler temperature setting, water pressure and room thermostat. … read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,874 satisfied customers
Im working on a boiler right now and the boiler is running
Hi pearl im working on a boiler right now and the boiler is running but is not heating the downstairs not the upstairs. I can't figure out why. Yesterday I replaced the pressure relief valve and the e… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I need the room thermostat for panasonic window air
I need the room thermostat for panasonic window air conditioner model CW-1200FU I think that the part # is CWA 15108 Where can I purchase this part ? … read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 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