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Atmos InterCombi
Installation & Servicing Instructions for HE32
(GC 47-249-01)
Atmos Heating Systems
West March
Daventry
Northants, NN11 4SA
Tel: 01327 871990
Fax: 01327 871905
e-mail: sales@atmos.uk.com
internet: www.atmos.uk.com
Issue 22.01.10 (Main revision)
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© 2010 Atmos Heating Systems The information provided applies to the product in the standard model. Atmos Heating Systems can therefore not be held liable for any damage resulting from the product specifications that deviate from the standard model. The information provided has been compiled with the utmost care. However, Atmos Heating Systems cannot be held liable for any faults in the information nor for the consequences thereof. Atmos Heating Systems cannot be held liable for a
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TABLE OF CONTENTS 1. Safety Regulations 7 1.1 General .......................................................................................................................................................................7 1.2 CH system...................................................................................................................................................................7 1.3 Gas system .............................................................................
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8.3 Burner resonates.......................................................................................................................................................46 8.4 No heating (CH) ........................................................................................................................................................46 8.5 Reduced output................................................................................................................................
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This manual Using this manual you can safely install and maintain this appliance. Carefully follow the instructions. In case of doubt, contact Atmos Heating Systems. Keep these instructions near the appliance. Abbreviations and names used Description To be referred to as High Efficiency HE Atmos InterCombi wall-mounted gas heater Appliance Appliance with piping for central heating CH system Appliance with piping for domestic water HW system Icon
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Atmos Warranty – Short version 1. Atmos Warranty is against any material, construction or operation faults that are found to be of original manufacturing origin. A full statement of the Atmos Warranty is available (www.atmos.uk.com or 01327 871990). 2. Atmos boiler warranty is, subject to conditions; two years from date of invoice, or 12 months from date of installation; whichever is the later. The warranty shall be 2 years for replacement parts and associated labour, thereafter any
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1. SAFETY REGULATIONS The appliance must be installed in accordance with the Gas Safety (Installation and Use) Regulations; October 1994. Failure to install appliances correctly could lead to prosecution. Atmos Heating Systems does not accept any liability for damage or injury caused by not (strictly) observing the current safety regulations and instructions, nor by negligence while installing the Atmos InterCombi wall- mounted gas heater and any accompanying accessories. The manufactu
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2. DESCRIPTION OF THE APPLIANCE 2.1 General The Atmos InterCombi wall-mounted gas boiler is designed for delivering heat to the water of a CH system and the domestic hot water. The air supply and flue discharge can be connected to the appliance by means of two separate pipes or a concentric connection. The appliance has its own wall mounting strip, but can also be fitted to an optional wall mounting frame that allows top connections. An optional pipe mounting bracket for use with the
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Waiting position The LED of the on/off button and if necessary one of the LED’s of the domestic hot water Keep hot function are on. The appliance is ready for responding to the demand for CH or domestic hot water. 0 Pump overrun After the operation of the CH, the pump has an overrun. This overrun time is set to the value according to parameter 8 (see § 7.3; factory setting is 1 min). This setting can be changed. Note: If there is a hot water demand during this period, the
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determined by the weather dependent control programmed in the controller. During CH operation, the demanded CH supply temperature is displayed on the operating panel. During CH operation, the actual CH supply temperature can be read by pressing the service button. Note: Instead of an on/off thermostat, an OpenTherm thermostat can be connected to the controller as described in §5.4.1. In this case, the desired CH temperature is set by the thermostat. The minimum
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2.5 Test programmes In the 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. Simultaneously press + and – to switch off the test programme. Test programmes Description of programme Button Display combinations reading Burner on with minimum CH "service" and "-" “L” power Bur
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3. MAIN COMPONENTS A CH pump M Flue discharge (or concentric connection) B Gas valve N Connecting block / terminal list X C Clamping plate O Condensate discharge D Supply sensor S1 P Hot water sensor S3 E Return sensor S2 Q Condensate trap F Fan R Heat exchanger G Hot water flow switch S Controller operating panel and display H Pressure gauge T Ionisation/ignition probe I 1m connecting cable 230 V ~ U Position type plate J Manual air vent V Expansion vessel (shown in broken lin
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3.1 Accessories Description Part Ref Pipe mounting bracket 092.537 • Connection supply and return 22 mm diameter • Connection cold and hot water 15 mm diameter • Connection gas ½" female thread • Mounting strip boiler • Bag with fixings Rear mounting frame for top pipe connection 092507 Bottom Pipework cover 092527 Outside sensor for weather compensation 203.207 Conversion set to Propane (LPG or G31) 075537 Interface cable (for Installers) 230677 13
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4. INSTALLATION 4.1 Overall dimensions A= CH flow 22 mm diameter h= 670mm InterCombi HE 32 B= CH return 22 mm diameter C= Gas 15 mm diameter H= 810mm InterCombi HE 32 D= Cold water 15 mm diameter E= Domestic hot water 15 mm diameter Z= Flue gas outlet 80 mm diameter F= Condensate 32 mm dia (after trap 25 mm dia flexible) Y= Air supply inlet 80 mm diameter 14
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4.2 Unpacking the appliance 1. Unpack the appliance. 2. Check the content of the packaging. This consists of:- • Appliance (A) • Mounting strip (B) • Condensate trap (C) • Installation Instructions • User Operating Instructions • Warranty card 3. Valve set (supplied separately with boiler) comprising 2 x 22mm isolation valves, 1 x 15mm isolation valve with blue lever (for cold water), 1 x gas valve. 4. Check the appliance for any damage: report damage to the Supplier immediately
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4.4 Boiler location Clearances Above casing 200mm min Below casing 230mm min RH 30mm min LH 30mm min (in operation) LH 140mm min (servicing) Front 30mm min (in operation) Front 450mm min (servicing) Keep 50 mm free space above the front panel in order to be able to remove the front panel from the casing. Allow 140 mm on the left side for swinging out the expansion vessel during commissioning/service. The appliance can be fitted to a mount
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4.5 Mounting and General Information 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 rear mounting frame (C) and pipe mounting bracket (B), which are both optional items. This arrangement allows for vertical pipework behind the boiler. Note that when the pipe mounting bracket is used, the pipes can be connected before installing the ap
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4.5.4 Installation connections 1. Make the various connections to the valves (see diagram). 2. Install a filling loop (not supplied) between the cold water inlet pipe and the CH return connection. 3. For most installations, the flexible tube for the safety discharge will be long enough to fit into the condensate discharge waste pipe (see below). In cases where this does not apply, install a 15 mm copper safety discharge pipe to fit into the waste pipe (as shown in the diagram, §5.1)
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4.8 Condensate disposal The appliance is provided with a 25 mm flexible pipe from its condensate trap. As given in §4.6, this should be inserted into an open waste pipe of not less than 32 mm diameter, together with the safety discharge pipe. The condensate is slightly acidic (pH between 3 and 6) and should be disposed of in the following ways, using suitable plastic waste pipe (Note: copper or steel must not be used):- • internal stack pipe (see diagram) • waste pipe (see diagrams)
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5. CONNECTIONS 5.1 Connect the CH system 1. Flush the CH system thoroughly. 2. Mount the flow and return pipes to the mounting bracket. All pipes must be mounted tension-free in order to avoid ticking of the pipes. Existing connections must not be twisted in order to avoid leaks at the connections with the external pipes. The CH system should be provided with:- • A filling loop in the return pipe directly below the appliance. • A drain tap at the lowest point of the system. •
