Question about Dometic 551816 Duo Therm 15k Heat Pump High Performance RV Air Conditioner

Open Question

Duotherm Model 59136

Freezing up on Heat pump cycle

Posted by Anonymous on

Ad

2 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad
  • 1 Answer

SOURCE: DuoTherm Model 59516.331 needs heat strip added

MODEL SERIES: 579XX, 590XX & 59516 (60XXXX, 61XXXX ON PAGE 2) ALL MODELS ARE PREWIRED WITH A POWER RECEPTACLE IN THE ELECTRIC BOX FOR EAS Y INSTALLATION
USE PN 3101121.030 HEAT STRIP,FOR NON-DUCTED MODELS

Posted on Dec 12, 2008

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Wiring from coleman rv ac unit has 6 wires and duotherm rv ac unit has 10--what do you do with other wires


you need a wiring diagram of each to see what they are for. heat pump, auxillary heat, inside sensor, outside sensor, electric heat, gas heat there are many different applications.

Aug 20, 2015 | Coleman Heating & Cooling

1 Answer

I have a Dometic DuoTherm AC/furnace in my RV. Thermostat got knocked off the wall. Now only thing that will work is the fan in the Manual mode. Heat nor air will come on. What could this be.


If you have properly re-attached all the wires to the old or newly installed thermostat, then I would suspect that one or more of the control wires to the heat pump have either been severed or pulled loose from the heat pump.

Feb 15, 2015 | Dometic Rooftop RV Air Conditioner

2 Answers

While in heat mode the condenser freezes up.1200 model


This is how air conditioners work.

They transfer heat from (usually) hot places to cooler places.

When working in the opposite direction, the machine is attempting to pump heat from the cool place (making it colder) to the warm place (making it warmer).

Flushing the frozen condenser with cold water adds more heat to defrost the condenser, but it will refreeze when you try extracting more heat from the cold place.

Dec 10, 2013 | LG LS-K1830CL Cool Mini Split Air...

1 Answer

I have a goodman self contained heat pump that is 3 and 1/2 years old. I wake in the night to hear what sounds like the fan runnning and running and running and air moving thru the vents. Then I will hear...


Heat pumps are a very efficient design when working properly. But lose efficiency the colder it gets outdoors. I usually tell people when it drops below freezing to turn the thermostat to aux or em. heat. A heat pump can remove heat from 20°f air. But not very well. More heat at 30°f air, obviously, and so on. So the colder it is outdoors, the longer it will operate to remove heat from outdoors. And then, if it can't keep up, it brings on the electric heat elements to compensate. Now you are running both outdoor and indoor heat. This is where it's inefficient and costly. Also, the outdoor will start to freeze up. This is normal unless you can see a substantial amount of ice. The heat pump will engage defrost mode, cycling on the electric heat indoors. And defrost mode is actually cooling mode! The reversing valve in the heat pump switches to cooling mode, cycles off the outdoor fan, and defrosts for a set time or temp. So now your electric heat is engaged, and your indoor coil is a COLD coil! Not hot! Very inefficient. These 2 things are why your elec bill is higher in the winter. So it makes sense to me, if the elec heat is going to be on anyway, to move the tstat to aux or em. heat, when it's going to be below freezing outdoors. This will turn off the heat pump and use elected heat only. The only down side to this is, if you don't have enough elec heat to keep you warm, you may need both heat pump and elec heat. So trial end error until you find what works. Also, have a qualified tech check the system for operation and efficiency. Hope this helps!

Apr 08, 2017 | Goodman PHKJ048-1 Air Conditioner

1 Answer

Showing a LP on display. What are the possible problems?


Here is the reason for that problem per the manufaturers web-site

http://www.haywardnet.com/products/Manuals/pdfs/Manual122.pdf

The low-pressure switch senses the refrigerant pressure in the sealed refrigeration system to

protect against certain conditions that could be detrimental to compressor life. The switch shuts

the unit down in the event of loss of refrigerant, fan motor failure, evaporator freeze-up and

airflow blockage. The switch automatically resets when the pressure rises to normal operating

pressures. The display will show "LP" if this switch is tripped.

Evaporator Freezing

The low-pressure switch will shut the heat pump down when the evaporator starts to freeze.

When the unit starts to freeze the low-pressure switch will be tripped, causing the display to read
"LP" This will prevent the evaporator from becoming damaged or deformed.

If the air outside the heat pump is not warm enough to produce heat, the system will shut down.

The actual point at which your unit will shut down due to low temperature varies depending on

which model you purchased, current weather conditions, and the amount of sunlight reaching the

heat pump. The shutdown can occur anywhere within a wide range of temperatures, usually 45°F-

55°F. This is not a "fixed" range. We stress that climate conditions, sunlight, and various models

respond quite differently to low ambient temperature. A shutdown occurs because low

temperatures will activate the systems low-pressure safeguard switch (digital thermostats will

display a code "LP".) The unit will start up again when the temperature has raised enough to reset

this switch. Note: Low ambient temperature does not necessarily affect the Chiller models
or the cooling cycle of the heat/cool units.

If this post has helped you, please take the time to vote positively for me on this site. If you need additional help, I can be reached @: adamh@newconceptchem.com

thanks,

adam

Oct 23, 2010 | Hayward Heatpro 81k Btu Swimming Pool Heat...

1 Answer

Replacing a Coleman with a Duotherm, can the same thermostat and controls be used?


Hi, yes you can use the same thermostat if you are replacing the unit that has the same sequence of operation. What I mean is, if the old unit is a gas fired furnace and outdoor condenser split system for the a/c you can use the same controls, or if its a package unit. Now, if you are installing a heat-pump unit in place of a gas fired central unit, you will need to pull more stat wire and buy a heat-pump thermostat to make it run.
Shastalaker7
A/C, Heating Contractor

Oct 12, 2010 | Coleman Mach III Air Conditioner

1 Answer

Rooftop RV Air Conditioner: my duotherm rv ac rooftop 15,000 btu the free...


If it's the pencil type, it just pokes into the fins (carefully)
If you look real close with flashlight you should be able to see where it poked in before, usually a couple of inches up from bottom. If it's the little round disc, it snaps in down in bottom corner, there should be a small hole for it in the frame.

May 17, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

Does not heat real hot or cool real cold . dometic duotherm penguin markings on 85 or so unit


Heat real hot? Is this a heat pump or do you have a heat strip installed. Get a regular thermometer and put it in the outgoing vents of the unit. Register the temperature there and then the outside temp. If it is cooling at 17 to 23 degrees below ambient temperature, the manufacturer says this is fine. Try cleaning the condenser out on the top of the rv. Gently hose the rear condenser out until all the dirt and grime is removed the unit. Try cooling again and see if it is better.

Jul 04, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

DuoTherm Model 59516.331 needs heat strip added


MODEL SERIES: 579XX, 590XX & 59516 (60XXXX, 61XXXX ON PAGE 2) ALL MODELS ARE PREWIRED WITH A POWER RECEPTACLE IN THE ELECTRIC BOX FOR EAS Y INSTALLATION
USE PN 3101121.030 HEAT STRIP,FOR NON-DUCTED MODELS

Dec 12, 2008 | Dometic Rooftop RV Air Conditioner

1 Answer

Condenser frost's up on my heat pump


On a heat pump the system reverses during the heat cycle to bring in outside heat that will cause the outside coils to ice up. There is a defrost timer or pc board to send the unit into defrost every so often. This is a common problem with heat pumps or possibly low or refrigerant. Heat pumps will freeze up at low outside temps, but unless your in the Artic right now that shouldn't be a problem.

Sep 27, 2008 | Heating & Cooling

Not finding what you are looking for?
Dometic 551816 Duo Therm 15k Heat Pump High Performance RV Air Conditioner Logo

Related Topics:

43 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dometic Heating & Cooling Experts

Bill Long

Level 3 Expert

587 Answers

Donni Steen

Level 3 Expert

659 Answers

mike cooper

Level 3 Expert

884 Answers

Are you a Dometic Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...