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 | "Trane 7 1/2 ton heat pump " , posted Mon 5 Feb 19:36:
When sytem is set for heat and reversing valve energizes,you can feel the suction line get hot for approx. 4 minutes then it goes cool.Therefore losing the requested discharge heat from the vent.Have ... read more |
pricera
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Replies (4)
Re(1):Trane 7 1/2 ton heat pump - Antonetz
Re(2):Trane 7 1/2 ton heat pump - pricera
Re(3):Trane 7 1/2 ton heat pump - Antonetz
Re(4):Trane 7 1/2 ton heat pump - pricera
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| "Blower " , posted Mon 5 Feb 19:34
I have a york roof top that the blower motor keeps running all the time. What should I be looking for to have it come on, on demand only?? ... read more |
warminjanuary
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Replies (1)
Re(1):Blower - Antonetz
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| "on line courses " , posted Mon 5 Feb 18:00
I am the maintenance sup. at a resort in Ca. and need to learn more about HVAC and refrigeration. Can any one recommend a good on line school or course that could help.Thanks. ... read more |
wisler
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Replies (1)
Re(1):on line courses - FootLoose
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| "RHEEM Heat Pumps " , posted Thu 1 Feb 20:03
Need to know what the tonnage is for a 1987 RHEEM Model RXPJ-BB15C rooftop units (heatpump). Need to replace four of these on a building. Any information on the capacity would be helpful. Thanks! ... read more |
MONTYB
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Replies (0)
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| "Hi discharge pressure/low oil pressure " , posted Tue 30 Jan 00:44
Hello people... I noticed an interesting thing on 2 of my chillers. One is air cooled, the other water cooled. The air cooled one shut down by the oil pressure safety, inspection shows the condenser ... read more |
hatrabbit
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Replies (4)
Re(1):Hi discharge pressure/low oil pressure - THE BUTCHA
Re(1):Hi discharge pressure/low oil pressure - hvaccur
Re(1):Hi discharge pressure/low oil pressure - Antonetz
Re(1):Hi discharge pressure/low oil pressure - chiller guy
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| "Trane Voyager problems " , posted Sat 27 Jan 23:15
I am working on a Trane Voyager unit that is about 14 years old, it has to be reset daily. Our old service manager (the original Hack!) would not let the service techs in our shop work on any RTU's an ... read more |
DenverG
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Replies (1)
Re(1):Trane Voyager problems - mikey g
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| "Rheem HP vs. Carrier HP control wiring " , posted Sat 27 Jan 13:09
I have been converting all of the t/stats in our facility to digital, from the old mercury type. Using the newer Totaline (not touch screen) Programable Auto changeover.On the Carriers, its a ... read more |
mikeylikesit
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Replies (1)
Re(1):Rheem HP vs. Carrier HP control wiring - klaservice
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| "flames go on and off " , posted Tue 23 Jan 17:27
working on a Lennox rooftop. the thermostat calls for heat then the unit starts working. somewhere in between the flames must go off. I open the panel and the flames come back on. The highest temp it ... read more |
cedric
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Replies (9)
Re(1):flames go on and off - cool p
Re(2):flames go on and off - Antonetz
Re(1):flames go on and off - tom446
Re(2):flames go on and off - cedric
Re(3):flames go on and off - tom446
read more
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 | "rheem roof top no heat " , posted Mon 22 Jan 20:43:
HI AM WORKING ON A RHEEM ROOF TOP COMBO FORCE AIR FURNANCE AND WHEN I TURN ON HEATING MODE I DONT GET ANY THING I GOT POWER TO THE UNIT BUT STILL NOTHING I TEST INDUCE FAN MOTER BUT NOTHING I UN HOOK ... read more |
cool p
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Replies (3)
Re(1):rheem roof top no heat - Houston204
Re(1):rheem roof top no heat - DenverG
Re(1):rheem roof top no heat - tom446
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| "Need electric strip heat package - Bryant " , posted Wed 17 Jan 11:05
Looking for a electric strip heat package /small heater repair kit for 2 Bryant units (Make: 542EP042/542EP048). The heat coils (Carrier# 303283-202 with 2 - FRN R 60 fuses and fuse holders) are burn ... read more |
jmb4856
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Replies (2)
Re(1):Need electric strip heat package - Brya - pacserve
Re(2):Need electric strip heat package - Brya - jmb4856
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| "Bad smelling flue " , posted Fri 12 Jan 20:23
I do hvac maintinance work for a company with about fifty units all american standard. One of the 5 ton units in heating mode has a really bad smelling flue gas .I mean make your eyes water bad This u ... read more |
ROB B
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Replies (3)
Re(1):Bad smelling flue - flooded sys
Re(1):Bad smelling flue - kdmman
Re(1):Bad smelling flue - kevink
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| "Singer WSHP Model # Nomenclature " , posted Fri 12 Jan 17:08:
Does anybody have info on the Singer model number or know where I can get it? Example of model numbers,CC140CC260CC330CC400 Thanks for any help. ... read more |
timebs
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Replies (1)
Re(1):Singer WSHP Model # Nomenclature - Rustymike
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| "Whalen efficiency... " , posted Fri 12 Jan 13:54
I just moved into a 10 story condo with Whalen units. My 800 sq ft unit has three -- one in the kitchen/dining room, one in the living room, and one in the bedroom.I'm interested in making th ... read more |
stomv
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Replies (0)
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| "T7300 stuck in heat " , posted Fri 12 Jan 07:18
We have an old version (light brown) Honeywell T7300 t-stat on a Q7300A (non switching subbase) that will not come out of heat. We replaced both the subbase and the stat and are having the same proble ... read more |
garrison
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Replies (2)
Re(1):T7300 stuck in heat - kdmman
Re(1):T7300 stuck in heat - Dog Biscuit
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 | "Nordyne error code blinks twice " , posted Fri 12 Jan 00:57
I have a Nordyne Model#R4GA-036K072C that does not start and the light on the motherboard is blinking twice. Does any one know what the error code means or where I can find the error codes for this u ... read more |
JesseV
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Replies (8)
Re(1):Nordyne error code blinks twice - bama 101
Re(2):Nordyne error code blinks twice - jessev
Re(3):Nordyne error code blinks twice - bama 101
Re(4):Nordyne error code blinks twice - JesseV
Re(5):Nordyne error code blinks twice - tom446
read more
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| "removeing oil " , posted Thu 11 Jan 20:07
Does anybody know a easy way to change the oil from a tin can refrigeration system? ... read more |
alew81
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Replies (0)
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| "Confused over RoofTop info " , posted Tue 9 Jan 21:45
I am an owner of a commercial two storey building. The second floor has its own HVAC(?) sysem that heats and cools roughly 1300 sq. feet. The space is completely unobstructed from one end to the oth ... read more |
Newtothis
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Replies (5)
Re(1):Confused over RoofTop info - Dog Biscuit
Re(2):Confused over RoofTop info - dakrew
Re(1):Confused over RoofTop info - acefurnacefxr
Re(2):Confused over RoofTop info - newtothis
Re(3):Confused over RoofTop info - moondog
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| "sunpath Heat Pump " , posted Tue 9 Jan 08:44
I came upon a Sunpath Heat Pump and never heard of them before are parts still availiable ( Logic Module ) ... read more |
mechanic1
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Replies (1)
Re(1):sunpath Heat Pump - alittle1
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| "Rooftop unit tonnage " , posted Sun 7 Jan 06:52
I recently came across two old John Zinc rooftop units. Does anybody know the tonnage of these units with the following model numbers?....Model 823-030-00 and Model 103-015-00 ... read more |
toddpe
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Replies (1)
Re(1):Rooftop unit tonnage - Antonetz
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| "Reach In Cooler " , posted Fri 5 Jan 17:41
Beverage Reach In cooler has frozen everything. Any ideas of what could cause this problem? I'm thinking cold control. Am I on the right track or could something else cause this? After everthing was r ... read more |
esquire
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Replies (2)
Re(1):Reach In Cooler - servicemike
Re(1):Reach In Cooler - bama 101
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| "help " , posted Wed 3 Jan 21:40
In a call for heat the furnace comes on along with the condenser.This is a package day/night old unit no schematics ... read more |
GVBA
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Replies (1)
Re(1):help - Antonetz
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| "REPLACEMENT FOR OLD THERM .TO DIGITAL " , posted Tue 26 Dec 23:16
HI,CAN ANYONE SUGGEST ME WHICH IS COMPATIBLE PROGRAMMABLE WITH OLD HONEYWELL T87401165 THERMOSTAT. (I LIKED HONEYWELL T8602 D 2000). I DON'T KNOW IF THIS IS GOING TO WORK?I HAVE WIRES CONNECTE ... read more |
REDDSAND
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Replies (1)
Re(1):REPLACEMENT FOR OLD THERM .TO DIGITAL - Antonetz
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| "Air conditioner models " , posted Thu 21 Dec 10:17
Hi.. I am an engineering student and am doing an air conditioning audit of a site as a project. I found these Sanyo air conditioners with model no's: SPW-C602M8TASPW-C482M8TASPW-C362M ... read more |
drunkmunky
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Replies (1)
Re(1):Air conditioner models - jose
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| "Trane 60 Ton Chillers? " , posted Sat 16 Dec 23:30
Anyone have any experenice on these? Having problems with circuit 2 compressor getting an error saying it's tripping the breaker killing the unit, however the breakers aren't tripped. ... read more |
psycheus
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Replies (3)
Re(1):Trane 60 Ton Chillers? - dbcooper
Re(1):Trane 60 Ton Chillers? - chiller guy
Re(1):Trane 60 Ton Chillers? - harpo
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| "Trip breakers " , posted Fri 15 Dec 17:48
My units Lennox heat pump . I change 24v double contactor .When I turn on a/c or heat the breakers trip out I don't know where it short ground Can you help me .Thanf you so much ... read more |
Toshibas
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Replies (1)
Re(1):Trip breakers - bama 101
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| "Water cooler " , posted Thu 14 Dec 21:49
Have oasis PA8SL double water cooler. water does not come out after cycle is complete out of either units. ten min later they work fine. Adjusted t-stat=> same thing. Replaced t-stat => same thing. be ... read more |
HandyRandy
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Replies (1)
Re(1):Water cooler - bama 101
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| "fan cycling controls " , posted Wed 13 Dec 11:37
hi im looking for some fan cycling control set points for refrigeration,wi boxes with outdoor mounted condensers.hope someone can help.thanks ... read more |
jim@oceanair
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Replies (3)
Re(1):fan cycling controls - chiller-service
Re(1):fan cycling controls - chiller-service
Re(2):fan cycling controls - jim@oceanair
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| "Gas Line testing " , posted Tue 12 Dec 22:31:
Can some one tell me how to properly pressure test a new gas line to a new gas pack to pass city inspection.Our code is 15psi for at least 15 mins. but will I have to disconnect the line before the un ... read more |
Madizum
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Replies (1)
Re(1):Gas Line testing - kevink
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| "Bryant Roof Top Package " , posted Mon 11 Dec 15:11
I just started working on Bryants. 10 ton package.The LED on the control board flashing 7 times, but I didn't have the manual. So it took me 3 hours to find a bad roll out switch.Where can I ... read more |
the blur
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Replies (1)
Re(1):Bryant Roof Top Package - 86project
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| "Necessity of glycol in hot water heating " , posted Sun 10 Dec 13:20
Our local library is a 40 year old steam (5 to 10 psi) system and we are considering converting it to hot water. Our heating engineer says it is mandatory to set up and use a glycol system which adds ... read more |
BruJan
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Replies (2)
Re(1):Necessity of glycol in hot water heati - evildberg
Re(2):Necessity of glycol in hot water heati - fitter597
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| "carrier manual " , posted Sun 10 Dec 07:57
needed for a roof top, 48TJE006-501GA also, from:xpedio.carrier.com/idc/groups/public/documents/techlit is there an index to the different models, comm and res? ... read more |
moondog
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Replies (1)
Re(1):carrier manual - bama 101
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| "vibration " , posted Fri 8 Dec 00:54
I have a roof top that is vibrating so bad it is tripping the rolll out. Seen this happen? changed the roll out to a 300* still happening. I have a high temp rise (80*)but within spec. 3 year old Lenn ... read more |
Zzz
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Replies (1)
Re(1):vibration - shortys
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| "Hoshizaki Ice Maker Machines " , posted Mon 4 Dec 16:08
Hoshizaki ice maker machines available at www.zama-enterprise.com/Hoshizaki.aspx ... read more |
icemaker-man
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Replies (0)
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 | "Fujitsu Inverter a/c unit " , posted Sat 2 Dec 21:35
I have a Fujitsu inverter a/c unit - indoor serial number AST9LACW, outdoor AOT9LSAC. It has a fault and is displaying groups of 4 flashing red lights. Please, does anyone know the code for this fault ... read more |
jonsarvis
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Replies (3)
Re(1):Fujitsu Inverter a/c unit - ACTECH4U
Re(1):Fujitsu Inverter a/c unit - ACTECH4U
Re(1):Fujitsu Inverter a/c unit - ACTECH4U
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| "Spray booth " , posted Wed 29 Nov 19:07
I have a paint booth that will not go to high fire. i do not have much experiance with these units. its a jbi model cfa20is the air damper interlocked with the high fire? can anyone tell me the ... read more |
gasfitter2
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Replies (1)
Re(1):Spray booth - Zzz
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| "Carrier RTU Flame going out " , posted Wed 29 Nov 15:30
1988 era Carrier small package unit. 5 tons, most parts in the heating section has been replaced for 1 reason or other. Heat exchanger, ignition module, gas valve, vent motor, flue box metal at vent ... read more |
The Blur
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Replies (4)
Re(1):Carrier RTU Flame going out - Zzz
Re(1):Carrier RTU Flame going out - Zzz
Re(2):Carrier RTU Flame going out - the blur
Re(1):Carrier RTU Flame going out - shortys
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| "GMP075-3 blower runs continuously " , posted Sun 26 Nov 17:45:
Hello.I have a GMP075-3 which fires up properly but after heat-off, blower fan keeps running. It will go into the heat cycle again sometimes but not always. Powering off the furnace will stop ... read more |
davidchomes
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Replies (2)
Re(1):GMP075-3 blower runs continuously - Zzz
Re(1):GMP075-3 blower runs continuously - servicetech
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| "Blowing Up Control Boards " , posted Sun 26 Nov 00:15
Vitals:Honeywell S8610U1003 control boardRobertShaw 7000DERHC gas valve (LP)Background:This is a 600,000btu LP-fired pressure washer burner used in a truck wash. The control board ... read more |
fingur
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Replies (2)
Re(1):Blowing Up Control Boards - Zzz
Re(1):Blowing Up Control Boards - shortys
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| "Polyurethane Ducting " , posted Tue 21 Nov 07:36
Does anybody experience with insulated duct which is made of two aluminum layers with polyurethane insulation ( like sandwich panel)Is the polyurethane duct model better than conventional one (wit ... read more |
Alam
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Replies (0)
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 | "Rooftop unit theft protection " , posted Mon 20 Nov 17:19
Hey guys has anyone seen a good way to protect small package units from coil theft with still allowing room for servicers? This customer also has some splits which were destroyed as well, same questio ... read more |
Hvactravis
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Replies (1)
Re(1):Rooftop unit theft protection - acefurnacefxr
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