panasonic airconditioning
Hi lads can anyone tell the kw rating of a panasonic AIR CON URBAN outdoor unit serial number CU-71CHPP PLEASE.
View Articlewalls 3 tier ice cream freezer fault
Hi guys any suggestions would be greatly appreciated I attended a call this morning to a wall ice cream 3 tier freezer model iarp visimax slim. Found all tiers at temp below -21 but what I'm getting is...
View ArticleJust wondering why they are so noisy
Hi guys, When I was on the road I`d often be parked up next to a fridge truck with the unit banging away for all it was worth. Now here`s my question: just why are they so noisy, I`ve worked on large...
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How to stop water overflow
Hi, guys I went to look at a chiller and I found chilled water storage image.jpgimage.jpgimage.jpgimage.jpgimage.jpgtank that was leaking water thru overflow pipe and need ideas as to what could be the...
View Articlepressure test with CO2
Hello ! What damage may impair to a system with poe oil pressure test with argon/CO2 mix instead of nitrogen ?
View ArticleEurofrigo Microstat controller programming manual
Hi! anyone can help with info...temperature locked to 1°C
View ArticleChilled water expansion tank/pressure vessel/accumlator/bladder tank?
Hi just been drafted in to finish a chilled water system that is half way through installation.....loads of issues however one at a time...... The system is on a mixed use building - 170 bed hotel,...
View ArticleDaikin RR fan motor problam ...
Hi there pl3ase if anyone has the sa problem with daikin split RR Series single condenser fan just stoped working .... ? I ch3cked amps Ok not hot and protection is direct mean on board . Still dont...
View ArticleElectronic Expansion Valve vs Capilliary in a high wall single split cooling...
Will an EEV in a 5kw cooling only split AC with fixed speed compressor have any advantage in terms of electricity savings versus a 5kw split AC (fixed speed compressor) using only a capilliary under...
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Ciat dry-air cooler
Hi I am having trouble running up a dry air ciat cooler. water in let temp is 40c and set point is 30c but fans will not kick in. its a brand new cooler. There is power on the control board but the...
View ArticleDuct Design Methods.
Wat are the different velocity ratings followed in Velocity reduction methods, for Maint ducts, Branch ducts, Collars. Return Air Duct. Exhaust ducts. Fresh Air ducts.
View ArticleTurbocors Surge issue
Hi, new to this site, I had a compressor surging after ramp up, check valve rattling, suction temp rises with the back flow of discharge gas. The IGV appears to be operating ok. There are two...
View ArticleStarter Issues
Hello, I realize that this might belong in the electrical section but it doesn't look like there is a lot of activity there and we need some help. We have an older Vilter 4512XL that is running as a...
View ArticleSAB 163 HF auto Vi - strange noise
Compressor is working on ammonia at -10*C/35*C After general overhaul around 33000 working hours assembling of compressor was without any problem. There is some wear on the bottom of the Vi slide...
View ArticleInsufficient cooling Carrier 42000 BTU R22 scroll compressor (PSI readings...
Have a Carrier scroll compressor R22 3 1/2 ton unit outside and a 4 ton piston coil inside at furnace. R22 charge is 7 pounds. Original coil was a thermal expansion type but was leaking R22 and was...
View ArticleBitzer 8FC-70.2Y-40P operation problem
Dear forum members, I need your technical support for Bitzer piston compressor type 8FC-70.2Y-40P. Our client has 4 of these piston compressors and one of them has a problem when changing capacity from...
View ArticleCharging by gauge temperature
Hi Guys, can anyone help me on this one. If i dont have a badged charge weight on a split system can i charge it by the temperature readings on my gauges? andy
View ArticleSuper Change, A replacement for R22????
. See the link below and watch the advertising video and make your own mind up........... http://www.cliplight.com/hvacr/chemi...uper-change-2/ Regards Rob .
View ArticleHowden twin screw 134a
ENLIGHTEN ME PLEASE ON DISCHARGE PRESSURE, SUPERHEAT, AND OIL TEMPERATURE. SYSTEM IS A 1K TON CHILLER WITH 134A REFRIGERANT AVERAGING 42 PSIG SUCTION AND 130~ DISCHARGE PRESSURE AND 40~PSID LUBE OIL. I...
View ArticleChanges in safety standards for Pipe and pipe fittings
. Pressure testing can be done to lower values now that a new specification has been introduced across the EU. Effects of changes to Safety Standard BS EN378 The strength pressure test to copper pipe...
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