Unique CB2426 Service Manual Download Page 33 | Manualshive

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33

5. Gas supply tube

5. Gas supply tube

(from outlet side of thermostat to

(from outlet side of thermostat to

orifice)

orifice)

is recommended to be cleaned each time

is recommended to be cleaned each time

fridge is serviced

fridge is serviced

.

.

"Personal Service & Knowledge Makes Us Unique"

"Personal Service & Knowledge Makes Us Unique"

The gas supply tube leading from the thermostat gas control to

the orifice/burner can become clogged with scale or debris. A

clogged tube will also cause poor cooling and thermocouple drop

out at low fire (fridge shuts down) due to low gas pressure

leading to the burner.

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Summary of Contents for CB2426

Page 1: ...els CB2426 thru UGP 8 1992 to current Top 10 Tips Service Guide 2245 Wyecroft Road 5 Oakville Ontario Canada L6L 5L7 Ph 905 827 6157 Toll Free 1 877 427 2266 Fax 905 827 2027 www UniqueOffGrid com 03 26 10 ...

Page 2: ... a few rules that must be followed when troubleshooting the Consul fridge If these rules are followed most problems can will be rectified Listed are points that must be followed before trying to troubleshoot an absorption fridge The following pages outline the Top Ten Tips and explain why and how to troubleshoot Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique ...

Page 3: ...erforming unit but also from a safety standpoint The warning sticker found inside the Consul Unique fridge states This product can produce carbon monoxide Carbon Monoxide has no odor and can kill you The burner and flue system must be kept clean Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique ...

Page 4: ...4 Carbon Monoxide Warning Label Carbon Monoxide Warning Label Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique This label found inside all fridge and freezers ...

Page 5: ...ections to be snug not over tightened To reduce problems during summer season i e weekend use it is best to leave the fridge running on low setting during the week If shut down on a Sunday spiders may seek the propane odor mercaptin and create a restriction of the gas flow This in turn will reduce stop the operational efficiency of your absorption fridge freezers Note Installation and service must...

Page 6: ...absorption unit flow freely and mix correctly Without proper leveling you will not achieve adequate cooling inside the fridge and or cause damage to the system 1 Fridge is level 1 Fridge is level Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique ...

Page 7: ...ledge Makes Us Unique Personal Service Knowledge Makes Us Unique Ensure the fridge is level by using a 2ft level and adjusting the feet at the bottom of the front or back of the fridge until desired level is reached Left to Right Front To Back ...

Page 8: ...l Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique Ensure the fridge is level by using a 2ft level and adjusting the feet at the bottom of the front or back of the fridge until desired level is reached ...

Page 9: ...Makes Us Unique Ensure the fridge is level by using a 2ft level and adjusting the feet at the bottom of the front or back of the fridge until desired level is reached See leveler bolt and leveler cover which fits onto the bottom of the bolt These are located at the four corners of the fridge ...

Page 10: ...gas pressure is low the following problems could exist poor cooling or fridge shutting down when switching to low flame When pressure is too high the unit will overheat and failure will occur within 36 hrs Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique ...

Page 11: ...er take the pressure at the inlet side on the on off valve It is important the pressure reads 11 WC not lower or higher Union Nut On Off Valve Step 1 Remove the On Off valve place a wrench on the floating nut as well a 11 16 wrench on the on off valve Turn the nut counterclockwise This will allow you to go to the next step ...

Page 12: ...e Makes Us Unique Personal Service Knowledge Makes Us Unique Step2 Hook up Manometer to the downstream side of gas line off of the On Off Valve to take pressure reading Removed from Gas Control Manometer hooked up to downstream side of the gas line ...

Page 13: ...e Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique Step 3 Depending on the Manometer you have you can place it on the side of the fridge or wherever it will be balanced Hook this to the downstream side of your gas line ...

Page 14: ...14 Solution Solution Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique Step 4 Adjust regulator to achieve the 11 mark on the manometer adjust slowly ...

Page 15: ...ach time fridge is serviced A dirty burner will create carbon build up along with carbon monoxide gases It will also cause low heat to be produced from the flame which in turn will cause poor cooling Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique ...

Page 16: ...d Use a small brush to clean out the burner tube to free it of any spider webs use a wire brush to clean any build up that has clogged the screen and finish by blowing it out with compressed air Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique ...

Page 17: ...oval Of Burner Assembly Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique Step 1 Locate nut to remove the burner cover plate use a 1 4 nut driver to remove it This will then give you access to the burner for cleaning ...

Page 18: ... Burner Assembly cont Removal Of Burner Assembly cont Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique Here is a view of the parts and their locations All these parts will be removed for cleaning ...

Page 19: ...rvice Knowledge Makes Us Unique STEP 2 Make sure you put one 1 2 wrench on the burner tube nut and one 10mm wrench on the orifice itself Turn burner nut counter clockwise in order to loosen from orifice After you have removed the burner tube from the orifice as seen below the next step will be to remove the orifice from the orifice holder ...

Page 20: ...ue Personal Service Knowledge Makes Us Unique Step 3 Place a 10mm wrench on the orifice and one wrench on the orifice holder nut turn the orifice wrench counter clockwise to remove orifice The picture below shows the orifice removed from the orifice holder now we are ready for the next step which is to remove the burner tube ...

Page 21: ...need to remove the burner tube from the outlet side of the gas control Use two wrenches a wrench on the union and a wrench on the burner tube nut turn the wrench in a counter clockwise direction Once off retain for cleaning Solution Solution Removal Of Burner Assembly cont Removal Of Burner Assembly cont ...

Page 22: ...We now have to remove the electrode from the burner assy in order for the next step which is to remove the thermocouple Using a nut driver remove the nut and clamp which holds the piezo in place once removed clean the electrode tip with emery cloth or fine sandpaper Remember after removing the electrode clean the tip with emery cloth to remove any carbon buildup or oxidization ...

Page 23: ...ice Knowledge Makes Us Unique Step 6 Remove the thermocouple from the burner assembly in order to remove the burner from the bottom of the coil Turn 12mm wrench counter clockwise Solution Solution Removal Of Burner Assembly cont Removal Of Burner Assembly cont ...

Page 24: ...s Us Unique Step 7 Locate the burner bolts at the front and the back With a 3 8 ratchet remove bolts in a counterclockwise direction and once removed retain burner for cleaning Front Bolt Back Bolt Solution Solution Removal Of Burner Assembly cont Removal Of Burner Assembly cont ...

Page 25: ...ue Personal Service Knowledge Makes Us Unique Solution Solution Cleaning of the burner Cleaning of the burner Tools required for cleaning the burner Canned Air to blow out burner after cleaned Pipe Cleaner and Wire Brush to remove dirt and scale ...

Page 26: ...e Knowledge Makes Us Unique Solution Solution Cleaning of the burner cont Cleaning of the burner cont Step 1 Take your burner and soak it in Isopropyl rubbing Alcohol or paint thinners for at least 10 15 minutes Soak your orifice and burner tube at the same time ...

Page 27: ...Unique Solution Solution Cleaning of the burner cont Cleaning of the burner cont Step 2 After soaking for 15 minutes take the brush and clean the screen of the burner Your goal is to remove any scale buildup that may have occurred which would have reduced the size of the screen holes ...

Page 28: ...rvice Knowledge Makes Us Unique Solution Solution Cleaning of the burner cont Cleaning of the burner cont Step 3 Ensure the burner screen looks close to this image after it has been cleaned well The next step will be to run the pipe cleaner through the burner ...

Page 29: ...l Service Knowledge Makes Us Unique Solution Solution Cleaning of the burner cont Cleaning of the burner cont Step 4 Run a pipe cleaner all the way up to the screen to ensure any spider webs have been removed and also to clean the walls of the burner tube ...

Page 30: ...Personal Service Knowledge Makes Us Unique Solution Solution Cleaning of the burner cont Cleaning of the burner cont Step 5 Take a can of compressed air and blow through both ends of the burner Burner is now cleaned Set aside and clean orifice next ...

Page 31: ...time fridge is serviced Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique The orifice supplies the correct amount of gas flow to the burner If the orifice is clogged the flame will burn low causing poor cooling and thermocouple drop out fridge shuts down ...

Page 32: ...ruby and you will create incomplete combustion problems Each time the fridge is serviced the orifice must be cleaned by soaking it in isopropyl alcohol or paint thinners then blowing it out with compressed air Blow orifice from both ends with a can of compressed air If the sludge cannot be removed during cleaning a new orifice must be installed Blow out each end of orifice ...

Page 33: ... time fridge is serviced fridge is serviced Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique The gas supply tube leading from the thermostat gas control to the orifice burner can become clogged with scale or debris A clogged tube will also cause poor cooling and thermocouple drop out at low fire fridge shuts down due to low gas pressure leading to the burner ...

Page 34: ...ced this S shaped tube needs to be removed and cleaned Bang this tube against a hard surface to loosen the scale that builds up inside Then soak in isopropyl alcohol and proceed to run a pipe cleaner through the tube followed by compressed air to help dislodge any dirt or spider webs Compressed air will not remove spider webs on its own ...

Page 35: ...tube into the paint thinners or isopropyl alcohol bang the tube against a hard surface to loosen the scale that builds up inside After banging tube on hard surface you will see the scale that can fall out This scale can become dislodged and clog the orifice this tube should be cleaned every time the orifice is cleaned or the fridge is serviced ...

Page 36: ...lution cont Solution cont Step 2 Remove the tube from the paint thinners or isopropyl alcohol then run a pipe cleaner through both sides of the tube to dislodge spider webs scale or sludge that has built up inside Then proceed to blow out tube with compressed air to remove any leftover debris ...

Page 37: ... of Burner System You have now cleaned the burner assembly orifice burner tube and burner Before reassembling it it is a good idea to go to tip 6 Chimney Boiler tube must be cleaned of debris each time fridge is serviced After this has been done reassemble the burner assembly Here is a reminder of the burner components locations ...

Page 38: ...rviced each time fridge is serviced Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique Cleaning is required to avoid debris from falling down the boiler tube and onto the strangler assembly and burner A clean chimney ensures less chance of overheating and carbon monoxide gases developing ...

Page 39: ...irst lift off top of chimney and then remove the deflector strangler Take the chimney brush and clean the boiler tube to remove any scale built up in the tube You must cover or remove the burner so no debris will fall on it Clean the chimney with the chimney brush supplied on the back of the fridge Reassemble ...

Page 40: ... Personal Service Knowledge Makes Us Unique Solution Solution Step 1 Locate the nut on the panel which is located on the right side of the fridge while facing the back Take a nut driver to remove the screw that secures the chimney Nut located here ...

Page 41: ...l Service Knowledge Makes Us Unique Solution Solution Step 2 Remove upper section of chimney remove the deflector strangler and set aside for cleaning after the following steps are complete Remove strangler and set aside in order to clean the boiler tube ...

Page 42: ...ce Knowledge Makes Us Unique Solution Solution Step 3 Cover the burner if the burner has not been removed to eliminate any debris falling into the burner Cover the burner with paper towel or any type of material that will stop any debris falling into the burner ...

Page 43: ... Unique Solution Solution Step 4 Run the chimney brush down the burner tube about 10 15 times ensuring the brush peeks through the bottom of the tube Run the brush up and down more if scale continues to fall Run chimney brush up and down the boiler tube to remove all scale build up ...

Page 44: ...sk shaped piece about a couple of inches down and a piece of flat metal bent in a spiral shape The function of this piece is to slow the rising heat to obtain a specified range of heat in the boiler tube in turn obtaining the correct boiling temperature for the ammonia solution If the saucer shaped disk at the top of the deflector strangler is dirty it may block impede the correct functioning of t...

Page 45: ...own to the bottom of the baffle should be 25 3 8 for all 2 Door models CB2426 SC21F CQE22A B D F UGP 8 the 1 Door model length is 28 Models QM2808 58 with strangler hooked at the top of the boiler tube not the top of the chimney The baffle shaped disk can be cleaned at the edges with a fine file or emery cloth a clean disk allows the correct amount of restricted heat up the chimney ...

Page 46: ...akes Us Unique Solution Solution Tools needed to clean the deflector strangler are shown below The file is to clean the disk at the top of the wire assembly the brush is to remove any large build up in the chimney and emery cloth is to clean the wire and the deflector baffle ...

Page 47: ...Us Unique Solution Solution Step 1 Take the file and clean any scale buildup that has accumulated on the saucer shaped disk This will allow the heat to move freely around the disk and will not restrict the heat flow File the edges of the disk with the file to remove scale build up ...

Page 48: ...que Personal Service Knowledge Makes Us Unique Solution Solution Step 2 Use the brush to clean the baffle part of the assembly Once this is done clean the wire and the baffle with the emery cloth Clean with brush and finish off with emery cloth ...

Page 49: ...Knowledge Makes Us Unique Solution Solution Step 3 After cleaning the deflector strangler assembly place it back into the boiler tube ensuring that the bend at the top of the wire hooks over the lip of the boiler tube Hook wire over lip at top over the boiler tube ...

Page 50: ... replaced approx every two years Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique This filter is located at the inlet side of the thermostat gas control down stream of the On Off valve When this filter is clogged it will slow the flow of gas to the gas control therefore causing low pressure to the burner low flame ...

Page 51: ...t clockwise while holding the valve in place with the 11 16 wrench Once the on off valve is removed you must remove the union nipple with an allen wrench key 3 16 You will then see a yellow colored filter It is to be cleaned with isopropyl alcohol or replaced with a piece of loosely packed cotton batten or the end from a cigarette filter loosened to the same consistency The purpose of the filter i...

Page 52: ...ion Step 1 First start by removing the on off valve from the gas control This is done by placing a wrench on the floating nut and one 11 16 wrench on the on off valve in front of it Loosen the nut by turning it counterclockwise until the valve comes off Place one wrench on nut and one on the on off valve ...

Page 53: ...s Us Unique Solution Solution Step 2 Once the on off valve has been removed remove the union fitting by turning it counterclockwise with a 3 16 allen wrench This will now give you access to the filter inside the valve Locate allen fitting and remove by turning counter clockwise ...

Page 54: ...nto the valve and locate the filter Remove this filter and replace with a piece of loosely packed cotton batten of the same consistency You can also use a filter from a cigarette loosened to the same consistency When replacing the fitting ensure you use pipe dope on the threads to create a leak proof seal With fitting now removed you can get access to filter ...

Page 55: ...tibles clearance to combustibles Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique It is imperative that there is adequate ventilation around the fridge for the absorption system to cool properly and to allow proper operating temperatures within the cooling coil ...

Page 56: ...equired are under the section Where to Locate your Refrigerator in your manual Caring for Gas Refrigerator that was supplied with your fridge small grey manual Clearances for all Consul Unique models are as follows Facing Unit LP only units Right Side Top 6 Left Side Rear 0 Dual Powered UGP 8 s Left Right Top 6 Rear 3 ...

Page 57: ...thermocouple connection into the gas control and or into the interrupter block needs to be tight but not so tight as to damage the thermocouple and interrupter block insulator ring black If it s loose or the ring cracked there will not be a sufficient connection to allow enough milli voltage to be produced to hold the magnet in the open position The magnet keeps the gas valve open allowing the bur...

Page 58: ...Solution When tightening the thermocouple connection into the gas control for all models tighten it to the point where you just start to get firm resistance Do not over tighten especially on the CO monitored models where there is an interrupter block between the valve and the thermocouple connection ...

Page 59: ...low the thermocouple connection without the Carbon Monoxide detector hooked up Once you screw the thermocouple clockwise using a 5 16 wrench into the gas control you will start to feel it getting tight Continue to turn it until you start to feel some resistance at this point give it a 1 4 to 1 2 turn more This will ensure that you do not over tighten and damage the thermocouple ...

Page 60: ...nique Solution Solution with the CO with the CO Monitor hooked up Monitor hooked up Step 1 See below the thermocouple connection with the Carbon Monoxide detector hooked up To re assemble the connection first screw the interrupter block clockwise into the gas control Interrupter block ...

Page 61: ...ed up Monitor hooked up Step 2 Once the interrupter block has been inserted into the gas control try to position the block upwards Note it is ok that the block is a bit loose in order to obtain this position once you screw in the thermocouple it will tighten itself Next insert the mosfet into the block with arrow facing inwards Mosfet ...

Page 62: ...to screw the thermocouple into the block in a clockwise direction Once you screw the thermocouple clockwise into the gas control using a 5 16 wrench you will start to feel it getting tight Continue to turn it until you start to feel some resistance at this point give it a 1 4 to 1 2 turn more This will ensure that you do not over tighten and damage the thermocouple and interrupter block insulator ...

Page 63: ...11 W C Low Fire 2 W C Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique Flame Images Flame Images Use for Technical Reference Use for Technical Reference Correct Flame Appearances ...

Page 64: ...64 Weak Flame Clogged Burner Screen Personal Service Knowledge Makes Us Unique Personal Service Knowledge Makes Us Unique Incorrect Flame Appearances ...

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