Ensure the pipes slope back to the appliance. Page 28 5. Using the concentric adapter set see photo , the standard two-pipe connection can be changed into a concentric connection.
Seal the open air supply connections in the appliance with the sealing cap delivered with the set item C in photo. Page 30 5. Terminal The flue discharge at the terminal must be at least 75mm in front of the air intake and the distance between the two pipes at least 75mm. Page 31 5. Use of non-approved flue systems will invalidate the guarantee. For special applications, the appliance can be used with plastic flue pipes, which are available from Atmos as follows: PPS.
Page Roof Outlet Prefabricated Chimney Roof outlet prefabricated chimney Appliance category: C33 When there is little space in a shaft, a roof outlet through a prefabricated chimney may be necessary. The prefabricated chimney must comply with the minimum lengths shown.
The supplier must guarantee the proper operation of the prefabricated chimney with respect to wind attack, ice formation, rain ingress, etc. Flue terminals B can be individual, or common terminals can be provided for groups of up to 6 flues. There are different configurations possible and the main ones are illustrated.
To demonstrate WARNING compliance, the Benchmark Checklist located at the back of this Manual should be Connect the appliance to the mains voltage only after completed and signed at the time of filling and de-aerating! Page Commissioning Of The Appliance Commissioning of the appliance After having carried out the above operations, the appliance can be commissioned.
Switch on the electrical supply to the appliance. The appliance may carry out a self-test as determined by the controller: 2 on service display. After completing the self-test, a horizontal mark will appear in the service display: -. Drain the appliance using the drain tap.
Drain the system at the lowest point. Close the main valve for the cold water supply to the boiler. A part of this can be set directly via the operating panel, while another part requires an Installer code to be entered before settings can be changed. Service code [15] Access to installer settings.
When the CH system requires more or less power, the maximum CH power can be changed by adjusting the fan speed. See table: Setting CH power. This table gives the relation between the fan speed and the appliance power. Replace the dust cap A and close the flue gas measuring nipple.
Remount the front cover of the appliance. Caution: Check the measuring nipples used for gas tightness. Caution: On windy days or on installations with a long flue run it is necessary to replace the front cover of the boiler in order to obtain an accurate CO measurement After the fault has been remedied, the controller can be restarted by pressing the Reset button for 5 secs.
The following faults are detected and displayed:- Temperature Description Open the gas tap. Air in th e gas pipe. De-aerate the gas pipe. Inlet pressure too low.
Contact the gas company. No ignition 1. Replace the ignition probe. No spark. The house gas meter may be faulty. Re-circulation of the flue gases. Check the flue gases and air supply. Gas-air mixture not adjusted properly. Check the adjustment, see Gas-air control. Clean appliance and flue system. CH does not reach the correct temperature Possible causes Remedies Room thermostat settings not correct. Adjust the inlet combination. Temperature setting water circuit too low.
No heat transfer due to scaling or pollution 1. For appliances connected to propane gas, a six monthly service in the first two years to simply clean the condensate trap and pipe may be neccessary. Page 50 Open the gas tap and check the gas couplings below the gas valve and on the mounting bracket for leaks. Check the front cover and the connection of the fan to the front cover for leaks.
Switch off the electrical supply to the appliance. Close the gas tap. Page 52 9. Unscrew the 4 screws shown on the photo to allow the stainless steel burner mesh to be removed.
Page 53 9. Undo two Allen bolts on the Wilo pump head alternative pump Grundfos has 4 Allen bolts to remove the pump head from the body. Fit replacement pump head in reverse order. The pump must be vented via its vent plug after refilling the appliance. Page Electrical Diagram F1: 5x20mm anti-surge fuse 2A. The switched live can also be used for S plan or Y plan circuits note that the Vac live to the Wiring Centre must come from the same fused spur as the Vac supply to the boiler.
Print page 1 Print document 60 pages. The resistance R in the Electrical diagram can be removed when the room thermostat does not need any anticipation current. Page Test Programmes Test programmes In the burner controller, there is provision for putting the appliance into a test status.
By activating a test programme, the appliance will become active with a fixed fan speed without intervention of the control functions. The safety functions remain active though. Page Unpacking The Appliance Unpacking the appliance 1. Unpack the appliance. Check the content of the packaging. Page Boiler Location Boiler location The appliance can be fitted to a mounting frame.
The assembly or just the appliance should be mounted to a wall with sufficient bearing strength. In case of light wall constructions, resonance sounds may occur. There must be an earthed electrical supply within a distance of 1 m from the appliance.
Page Mounting Mounting Depending on the mounting option ordered, the following mounting methods are available:- Mounting strip A alone, OR mounting strip A and optional pipe mounting bracket B , OR top connecting frame C and pipe mounting bracket B , which are both optional items. This arrangement allows for vertical pipes from above at the rear. Page Mount The Appliance Mount the appliance 1.
Check whether the clamping rings are straight in the couplings. Place the appliance: slide it top-down over the mounting strip. Make sure that the pipes simultaneously slide into the clamp fittings. The flexible tube from the condensate siphon should be inserted into an open waste pipe of not less than 32 mm diameter. Page Connections The appliance is fitted with a 6 litre expansion vessel which is adequate for a system with a water volume not exceeding litres, typically 8 radiators.
For larger volume systems, an additional expansion vessel must be fitted. Contact Atmos for advice in these cases. Page Underfloor Heating 5. Connect underfloor heating with an electric shut-off valve two-way valve to prevent circulation through the appliance when there is no demand for central heating. Install a gas filter in the connection of the appliance when the gas can be polluted.
Connect the appliance gas valve to the gas pipe. Check the boiler's data plate to ensure that the appliance has been set for the correct gas supply. Connect the room thermostat. The terminal block for the connection for a volt free room thermostat, or time clock, is X4 on the control panel. Page Flue Terminal Clearances 5. A terminal guard must be fitted if the terminal is sited less than 2m above ground level.
Where the flue terminates within 1m of a plastic or painted gutter or within mm of painted eaves, then protection should be provided in the form of an aluminium shield at For smaller twin pipe diameters, the maximum pipe length is reduced as follows:- 70mm dia: 0. Page Outlet Arrangements 5. Page Outside Wall Outlet For Twin Pipe Terminal - Horizontal Pipes for connecting the air supply and the flue discharge between the appliance and the terminal must have a diameter of 80 mm.
Atmos twin pipe terminal horizontal. To be extended for a balcony outlet with one or two standard pipes diameter 80 mm. Outlet grid. Page 29 Mounting a twin pipe terminal extension pipe s for balcony outlet When the free outlet is hindered by an eave, balcony, gallery or anything else, the air supply pipe and the flue discharge pipe must be extended to at least the front side of the overhanging part.
When the air supply is not disturbed by obstacles, such as a console or separating wall, and when the outlet is not at the edge of a building, the air supply pipe does not need extension.
Page Outside Wall And Roof Outlet Concentric Terminal Horizontal Pipes for connecting the air supply and the flue discharge between the appliance and the terminal must have a diameter of 80 mm.
Atmos concentric terminal horizontal. For outside wall or roof outlet horizontal. Atmos concentric pipe. Atmos combination terminal - vertical. Mounting of combination terminal - vertical 1. Mount a vertical terminal roof pile with lead flashing at the place of the outlet on a pitched roof. On a flat roof an adhesive plate for a pipe of diameter mm must be applied. The air supply from the pitched roof area and the flue discharge by means of a constructional chimney is also possible, but not the other way around.
Page Roof Outlet Prefabricated Chimney 5. The prefabricated chimney must comply with the minimum lengths shown. The supplier must guarantee the proper operation of the prefabricated chimney with respect to wind attack, ice formation, rain ingress, etc.
Make an opening of diameter 90 mm at the place of the supply. Shorten the air supply pipe to the correct length out of the wall. Mount the Atmos inlet grid and attach this to the pipe.
Slide the air supply pipe into the opening and cover the opening with a rosette, if necessary. The flue discharge B must be provided with a pulling discharge cover.
The minimum bore of the common discharge system Page Roof Outlet Clv System Remark The common discharge system has been inspected in combination with the appliance. For the common flue discharge cover and air supply cover a certificate of incorporation from the Gastec-Gasinstituut is required.
Page Commissioning Of The Appliance Commissioning of the appliance After having carried out the above operations, the appliance can be commissioned. Switch on the electrical supply to the appliance. The appliance will carry out a self-test: 2 on service display.
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