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You are right jeepking; i meant SH. BTW suction pressure was 60psi and discharge around 220f with just one condenser fan working. But just to be sure; this is my understanding of how unloader...

Doing annual service on beckett burner(cf800) with cf170kj blast tube. The burner is installed on a hot water boiler( Smith-25Mills) wich has a combustion chamber width of 24 inches; depth of 54...

A little too late but right to say so!

First I want to thank you all guys for your help!! Came back for maintenance today with new comp; and did what IRBH said; after killing the power I could feel the hot gas flowing in the suction...

No cooling; checked pressures and low side was at 10PSI and discharge was at 170PSI. I<ve seen many of these Parker powerhead failed and my mind was already made so I decided to deenergize the RV to...

Carrier R22 38AKS016(air condenser with fan coil 40RM015) with one 15 tons 06D with one head equipped with mechanical suction cut-off unloader. Units were installed in 2009 and I personnaly adjusted...

Exactly what i thought but Martin Rex at Tecumseh tech support says otherwise; he says that the increase from 68 to 210 is enough to say that this comp is working good mechanically. He says many...

It is prep tables refrigerators and combined together they are almost the size of a 2 door reach in fridge. System has been running at 35f for 7 years. Compressor is hot because it nevrr stops as the...

Air cooled tecumseh with receiver and 2 txv at each evap; aka9427exa R22; ambient 95f boxes target temp=35f

During a rooftop unit maintenance yesterday the restaurant owner asked if i could check 2 prep tables refrigerators that were not cold enough(2 evaps on one condensing with LL solenoids valves...

The water running through the condenser is city water and has constant PH of 7.0. I know that heating water will precipitate the minerals; so I was thinking that the lower I set the water regulating...

I went to a service call in a DQ last night on a walk in freezer that was not cold enough. Room was at about 20f and compressor was running and constantly tripping on HPS; hooked my gages and read a...

First thank you for the infos! Do you think that all those boxes need to communicate or I could stay in Stand alone and modify the parameters of the main controller to include temperature limits in...

I have 16 vav boxes like the one showed in the pic mounted in stand alone ; i.e that there is no communication bus, each zone have a tc642 vav box control hooked up to a thermostat and controls a...

Model: PF4MNA031(PAYNE fancoil) equiped with a X13 motor which failed 8 months after installation(230 volts on L-N, proper grounding and 24 VAC on terminals 2 or 4 or both at same time and motor...

I have a 25000CFM hydronic fan coil with modulating 3-way valves on the water coil and modulating return dampers to introduce fresh air or recirculate return air from building. I need to know the...

OK; maybe you could just tell me how to charge a 1\3hp refrigeration unit combined with two evaps and two solenoids; any chances it can work properly even if one solenoid valve closes during...

Dont want to be annoying but:
What is the aurora?

Any ideas??

Any details?

Copeland makes a 2 speed compressor for Rheem and that, combined with your variable speed indoor air motor already in your modulating furnace will give you a much better contro especially for dehum....

Last week I went to a restaurant wich had one 1\3HP-R22-air cooled (Copeland MCFH0036IAA105) developping about 2800-3000 BTUH combined with two forced air evap coil(Blanchard-Ness SX-950) able to...

Recently installed a 38HDV012-3 wall unit; in fact i've installed many of them but this one was a used one we had on display in the office... Installed the unit after 12 months of storage in the...

Can you elaborate on the activates by a hester part please... not familiar with the eevs

Wurth products are awesome!! Varsol is greasy and your gasket wont stick to the plates unless you use loctite 380 or equivalent...Messy stuff but works great

I am currently relocating and converting from glycol to treated water a York chiller barrel that used to be mounted on the bottom frame of the 80 tons air cooled chiller. I included some pics of the...

So you are saying I should install a solenoid on one of the 2 coils inlets. If i am running on 1st stage the solenoid will be closed, won't that make the compressor running unloaded all the time...

Equalizer line is flush with the suction pipe exiting the manifold; a little downstream (1 inch) is the bulb on a 45 deg pipe positionned on the 3 o clock if bulb would be horizontal...

Are the bulbs ok where they are??

Do you think that long trap before the compressor is problematic too??

No but after replacement of the unit i installed one sporlan blue core with one pink pleated element. I changed both 1 month ago for 2 sporlan pink pleated elements.

So I keep adding until the second fan come on and then i charged with the sightglass and then fine tune with superheat???? How do I reposition the stems on the tevs??

when i connected my hose the unit was working so it was low pressure-60 psi and nothing spilled; but the hose was filled with a little bit of oil

No, I took it a little upstream of the trap in the hrztal part of the pipe. I could determine if i have a faulty tev by checking the superheat of each system. But i still checked the temp with a IR...

In an access valve at the bottom of the trap...do you think that wrong bulb location is really causing my superheat problem. Id like to avoid redoing evap piping if possible... What if even the...

I have read the book but they say to pipe the unit exactly as i did by putting a tee in the middle of the 2 headers...Do you mean that i should make the junction outside of the air handler casing to...

Yes but that is downstream of the to suction pipes junction; i dont believe i will have an accurate reading at this point as each TEV will be hunting against each other... This is a dual evap system...

[QUOTE=thegoodlistener;6368172]Isn't there a horizontal suction run inside the air handler? I see no pics. What was the subcooling?[/QUOTe

http://www.flickr.com/photos/49124216@N08/
Subcooling...

We installed a Carrier 15 tons split a/c R22 with one Carlyle 06D semi hermetic with one unloaded head (HGBP). After pre-charging I opened the discharge valve slowly and mid-cracked the suction...

On first Puron Carrier heat pumps model # 38YXA models the start relay used to make an explosion noise until it melted down completly after a couple of years:eek:

I usually only work with ng but i have some clients which are still running with oil, anybody knows the exact steps to make a smoke test and a combustion analysis in order to correctly adjust the air...

I installed a 12 gal true steam with a remote install. kit with a vision pro iaq and the unit worked fine for 5 days and suddently started to shut down due to a overheat lock- out.... checked if the...

never seen anything like that here, we use full flow solenoid valves and a flow regulation valve to maintain a 2 gpm per ton flow. where can i find such a valve???

true, dx is included in geo, not much to talk about

used it sometimes in installation where the drain pipe is already there and never had a single problem with pvc sch 40

no 7 gpm is in the heating mode with the solenoid valve fully open, in cooling thought water goes throught the penn valve and maintain a 200 psi head pressure by reducing the flow to 2 or 3 gpm. unit...

maybe not 110 f but at least 90 f, the other units use 2-3 gpm in cooling and7 gpm in heating. For sure 61 F is abnormal with a cold liquid line.

if it was too faar the liquid line wouldnt be cold...

I was on a service call yesterday on a new 5 tons watercooled heat pump Carrier 50rvr060 that was going on water freeze lock out after a couple of hours running. the penn valve and the solenoid valve...

Yeah, i know the infinity zoning system from carrier can use a user interface and a smart sensor where you can read and change the setpoint. This is exactly what i want but in order for the infinity...