Intergas Combi Compact HRE 24/18 Installation, Service And User Instructions Manual
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- Installation, service and user instructions manual (48 pages) ,
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- Installation, service and user instructions manual (56 pages)
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Intergas Heating Ltd
Combi Compact
HRE 24/18
HRE 28/24
HRE 36/30
HRE 36/40
Installation, service
and user instructions
Please read these installation instructions carefully before installing and using
the appliance. Keep these installation instructions with the appliance.
Always act in accordance with the instructions indicated.
(G.C. 47-291-01)
(G.C. 47-291-02)
(G.C. 47-291-03)
(G.C. 47-291-04)
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Table of Contents
Related Manuals for Intergas Combi Compact HRE 24/18
Summary of Contents for Intergas Combi Compact HRE 24/18
- Page 1 Combi Compact HRE 24/18 (G.C. 47-291-01) HRE 28/24 (G.C. 47-291-02) HRE 36/30 (G.C. 47-291-03) HRE 36/40 (G.C. 47-291-04) Installation, service and user instructions Please read these installation instructions carefully before installing and using the appliance. Keep these installation instructions with the appliance.
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Page 2: Table Of Contents
Overall dimensions ..................................17 Installation location ..................................18 Assembly ....................................... 19 Installing the appliance .................................. 20 Connection Connecting CH installation ................................21 Connecting DHW installation ................................. 22 Electrical connection ..................................23 Condensate disposal ..................................25 Flue system ....................................26 Intergas Heating Ltd... - Page 3 © 2013 Intergas Heating Ltd. All rights reserved. The information provided applies to the standard version of the product. Intergas Heating Ltd cannot therefore be held liable for any loss or damage arising from product specifications deviating from the standard version. The available information has been compiled with all possible care, but Intergas Heating Ltd cannot be held liable for any errors in the information or for the consequences thereof.
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Page 4: Preface
• Electromagnetic Compatibility Directive 2004/108/EC • Intergas declares that the materials used in the manufacturing of this appliance are non- hazardous and that no substances harmful to health are contained within the appliance. 1.2 Warnings Intergas accepts no responsibility for the unsatisfactory performance of the appliance or flue arising from the failure to comply with the installation and user instructions. -
Page 5: Abbreviations And Descriptions Used
1.6 Abbreviations and descriptions used Description Referred to as High efficiency Intergas Combi Compact HRE wall mounted gas fired Appliance boiler Appliance plus pipe work for central heating CH installation Appliance plus pipe work for domestic hot water DHW installation 1.7 This manual... -
Page 6: Safety Regulations
The manufacturer Intergas Heating Ltd accepts no liability whatsoever for damage or injury caused by failure to adhere (strictly) to the safety regulations and instructions, or carelessness during installation of the Intergas Combi Compact HRE High Efficiency wall mounted gas fired boiler and any associated accessories. -
Page 7: Technical Data
(*) The maximum CH power is factory set at 70% of the highest value (See section §10.4, Setting maximum CH power). We have a policy for continual improvement and development, therefore we reserve the right to change specifications without prior notice. Intergas Heating Ltd... -
Page 8: Components
Hot water sensor S3 Condensate trap Flow switch Heat exchanger CH pressure sensor Operating panel and read-out Mains lead 230 V AC without plug (stripped) Ionisation / Ignition electrode Manual air bleed Position of data plate Sight glass Intergas Heating Ltd... -
Page 9: General Boiler Information
The HRE 36/30 and HRE 36/40 are suitable for supplying at least 13 litres of water per minute at 35°C temperature arise. The HRE 28/24 is suitable for supplying at least 10.5 litres of water per minute and the HRE 24/18 is suitable for supplying at least 8.5 litres of water per minute. -
Page 10: Operation
4 OPERATION 4.1 General The Intergas Combi Compact HRE wall mounted, gas fired boiler is a modulating high efficiency boiler. This means that the power is adjusted in line with the desired heat requirement. The aluminium heat exchanger comprises of two separate copper circuits. - Page 11 During DHW operation the fan speed, and hence the power of the appliance, are controlled by the boiler controller so that the DHW water temperature reaches the DHW temperature setting. The water temperature can be set between 40°C and 65°C (See § 10.1.6). Intergas Heating Ltd...
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Page 12: Clock Function
The boiler controller is equipped with an interface for a PC, which can be connected by means of a special cable and associated Intergas Diagnostic Software (IDS). This facility allows the behaviour of the boiler controller, the appliance and the heating installation to be monitored over a longer period. -
Page 13: Frost Protection
If the appliance is out of operation ( the service display) the appliances internal frost protection is still active. However, this means there will be no response to a request for heat from an (external) frost thermostat. Intergas Heating Ltd... -
Page 14: Installer Important Points
If you experience any problems please refer to the installation and commissioning • guidelines within the boiler instruction manual. If necessary, please contact Intergas Heating Ltd (See § 1.8). Remember it is a requirement to complete the Benchmark code of practice logbook before leaving the installation. -
Page 15: Accessories
Wall mounting jig + exp. vessel 8 litres HRE 36/30 and HRE 36/40 093207 Wall mounting jig + exp. vessel 8 litres HRE 28/24 093197 093187 Wall mounting jig + exp. vessel 8 litres HRE 24/18 847000 Sampling cap Bend 45° 084661 Bend 90°... - Page 16 081294 081284 Elbow 90° (for plume management kit) 081285 Elbow 60° (for plume management kit) Extension L = 100 incl. wall bracket (for plume management kit) 081286 090000 Robo kit 12 litres Robo kit 8 litres 090100 Intergas Heating Ltd...
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Page 17: Installation
Return CH Ø22 ½” Cold tap water Ø15 Ø15 Condensate drain Ø25 (flexible) Drain PRV Ø15 Combi Compact HRE 36/30 & HRE 36/40 Combi Compact HRE 28/24 Combi Compact HRE 24/18 Flue pipe / air Ø60/100 (concentric) supply Intergas Heating Ltd... -
Page 18: Installation Location
Proceed as follows: If cover plate (A), is used, remove to the front. • Unscrew the two screws (1) behind the appliance display window. • Pull the bottom of the front panel (2) forwards. • Intergas Heating Ltd... -
Page 19: Assembly
Do not turn tightened valves on pipes as this weakens joints within the boiler. Combi Compact HRE 36/30 Combi Compact HRE 28/24 Combi Compact HRE 24/18 7.3.2 Using the fixing strip + ROBO kit. Position the fixing strip to the wall and drill the holes. -
Page 20: Installing The Appliance
7.4.1 Fitting the cover plate (optional) Hang the flanged upper edge of the cover plate on the washers under the base of the appliance and slide the cover plate as far as possible towards the rear. Intergas Heating Ltd... -
Page 21: Connection
CH request for heat. Connection diagram for floor heating Boiler Pump Floor heating valve Non return valve (spring operated) Electrical valve 230 V AC Radiators G. Room thermostat Maximum thermostat Intergas Heating Ltd... -
Page 22: Connecting Dhw Installation
C = Combi Compact HRE 36/30 & Combi Compact HRE 36/40 Litres per minute (*) The Combi Compact HRE 24/18 is equiped with a flow restrictor of 8 litres. When a DHW flow above 8 liters is required this flow restrictor has te be removed. -
Page 23: Electrical Connection
Temperature control Connector X2 Notes Room thermostat 230 V or 1 – 3 Remove link 6 – 7 external control 230 V (connector X4) Frost thermostat 230 V 1 – 3 Remove link 6 – 7 (connector X4) Intergas Heating Ltd... - Page 24 1 on X2. Set in-built timer to C-ON. Always remove link between 6-7 on X4 when fitting external temperature controls or the boiler will run constantly Warning High Voltage Isolate the appliance from the electrical supply before connecting the thermostat. Intergas Heating Ltd...
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Page 25: Condensate Disposal
- the use of fittings, elbows etc should be kept to a minimum ans any internal ‘’burrs’’ on cut pipework should be removed so that the internal pipe section is as smoooth as possible. For more information about preventive measures against freezing please visit the HHIC website http://www.centralheating.co.uk/checklists/frozen-condensate-pipes. Intergas Heating Ltd... -
Page 26: Flue System
6 Accessories. Note Only use approved Intergas flue products with this boiler, which can be sourced from the supplier of your boiler or Intergas stockist. The standard horizontal flue pipe is not supplied with the boiler and should be purchased separately from your supplier. - Page 27 The vertical flue system contains a flue adapter concentric 60/100 to replace the standard adapter on the boiler. Please note that the terminal is suitable for a flat or pitched roof and only approved Intergas flue products can be used with this boiler.
- Page 28 1. Check condensate trap is filled with water and correctly connected to boiler. 2. All flue joints are correctly made, unstressed and adequately supported. 3. All parts of the flue can be visually inspected -ensure suitable access where flue is positioned within voids- Intergas Heating Ltd...
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Page 29: Commisioning The Appliance
Do not adjust the air/gas ratio. Correct gas supply to obtain sufficient working pressure. NOTE The inlet working pressure must be obtained with all other gas appliances at the property working. Intergas Heating Ltd... - Page 30 The flue termination should also be checked. Where suitable access for a visual inspection of an existing flue system has not been provided the appliance must not be commissioned and it must be disconnected from the gas supply. Intergas Heating Ltd...
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Page 31: Commissioning The Appliance
This will occur at the the time of the last request for heat. To change this time the room thermostat should be turned up briefly at the desired time. The pump does not run during DHW operation. • Intergas Heating Ltd... -
Page 32: Setting And Adjusting The Clock Functions
- c-on (continuous on). The boiler will respond on every CH demand from the room thermostat without any time limit. - OFF The boiler will not respond on any CH demand from the room thermostat. Intergas Heating Ltd... -
Page 33: Shutting Down
(See chapter 13). Note If an (external) frost thermostat has been fittted to the installation and connected to the appliance, this will not be active when the appliance is switched off at the operating panel on service display). Intergas Heating Ltd... -
Page 34: Setting And Adjustment
30°C and 90°C (default value 80°C). 10.1.6 DHW temperature Press the key until the LED at starts to flash. With the keys set the temperature between 40°C and 65°C (default value 55°C). Intergas Heating Ltd... -
Page 35: Setting Via The Service Code
With this parameter the maximum rpm can be set Set point CH (flow temperature) Adjustment range 60°C to 90°C during heating external DHW tank Waiting time after a DHW demand Adjustment range 0 to 15 minutes before a CH demand is answered Intergas Heating Ltd... -
Page 36: Setting Maximum Ch Power
Power setting (kW) 17,8 22,8 26,3 1150 40,9 Appliance pressure loss graph, CH side Combi Compact HRE 24/18 Combi Compact HRE 28/24 Combi Compact HRE 36/30 WILO RS 15/7-3 Combi Compact HRE 36/40 Pump setting I Pump setting II Pump setting III... -
Page 37: Weather- Compensation Adjustment
Outside T in °C Supply T in °C Factory setting (Tmax CH = 80°C, Tmin CH 25°C, Tmin out -7°C, Tmax out 25°C) Example (Tmax CH = 60°C, Tmin CH 25°C, Tmin out= -7°C, Tmax out 25°C) Intergas Heating Ltd... -
Page 38: Checking Gas-/Air Ratio
When the CO percentage is not in accordance with the value as listed in the table under § 10.8 Please contact Intergas Technical Services 01527 888 000. No adjustment to the CO percentage should be made without permission from Intergas Technical Services. -
Page 39: Setting Gas/Air Adjustment Procedure
Check that the measurement nipples used are gas-tight. CAUTION Check that the Flue gas sampling point and the Gas test point are gas-tight. No adjustment should be made to the gas valve without prior permission of Intergas Technical Services. Natural gas H Propane... -
Page 40: Examples
When the CO percentage at high setting is not within the prescribed tolerance band please contact Intergas Heating. For adjusting CO percentage at low setting see § 10.8. Place a sticker for the gas type set over the existing sticker next to the gas valve. -
Page 41: Faults
29,30 Gas valve relay faulty Replace boiler controller • CAUTION Always use original Intergas spare parts when replacing components. Failure to fit the sensors S1 and/or S2, or to fit them correctly can result in serious damage. CAUTION * The boiler is equipped with a non-return valve (A), positioned above the fan. - Page 42 Check the wiring. Room thermostat / weather-dependent Replace the thermostat. adjustment not closed or faulty. Replace the weather-dependant adjustment. Check the wiring against the diagram. No current (24 V). Check the connector X4. Replace the faulty manager. Intergas Heating Ltd...
- Page 43 Set the hot water circuit, depending on the desired temperature. No heat transfer as a result of lime scale or Descale or flush the exchanger DHW side. fouling in the heat exchanger DHW side. Cold water temperature <10°C. Intergas Heating Ltd...
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Page 44: Maintenance
12.2 Cleaning Clean the heat exchanger from top to bottom with a plastic brush or compressed air. Clean the underside of the heat exchanger. Clean the condensate drain pan with water. Clean the condensate trap with water. Intergas Heating Ltd... -
Page 45: Assembly
N.B. The picture is showing a front plate with 11 shoulder bolts (Kombi Kompakt HRE 28/24, HRE 36/30 or HRE 36/40). The front plate for the HRE 24/18 has 9 shoulder bolts. Fit the gas connection below the gas valve. -
Page 46: Electrical Diagram
13 ELECTRICAL DIAGRAM 13.1 Electrical diagram HRE 24/18, 28/24 & 36/30 Earth connections heat-exchanger Fuse (2A T) CH pump DHW sensor Spark plug cover Gas valve + ignition unit Resistance Flow switch Boiler controller Ionisation-/ ignition probe Flow sensor CH water pressure sensor... -
Page 47: Ntc Resistances
13.3 NTC resistances NTC 12kOhm T [°C] R[ohm] T [°C] R[ohm] T [°C] R[ohm] 76020 12000 2752 58880 9805 2337 45950 8055 1994 36130 6653 1707 28600 5522 1467 22800 4609 1266 18300 3863 1096 14770 3253 Intergas Heating Ltd... -
Page 48: Short Spares List
Description Article number Boiler controller HRE 24/18, 28/24 & 36/30 074447 Boiler controller HRE HRE 36/40 074637 Fan 24 V, HRE 24/18, 28/24 & 36/30 074397 Fan 230 V, HRE 36/40 074577 Wall mounting strip 145308 Temperature sensor (heat exchanger) -
Page 49: Warranty Conditions
15 WARRANTY CONDITIONS With due regard for the conditions indicated below, Intergas Heating Ltd warrants to the authorised installer the soundness of the A copy of these conditions will be sent to you free of charge on materials used in and the correct operation of its Central Heating request. -
Page 50: Gas Boiler System Commisioning Checklist
17 GAS BOILER SYSTEM COMMISSIONING CHECKLIST Intergas Heating Ltd... -
Page 51: Service Record
18 SERVICE RECORD Intergas Heating Ltd... - Page 52 Intergas boilers are manufactured in a Kiwa ISO 9001 certified production faccility. Intergas Heating Ltd 882877-15 Intergas Heating Ltd Tel: 01527 888000 Building 94, Bay 1 Vantage Point Fax: 01384 279480 The Pensnett Estate info@intergasheating.co.uk Kingswinford www.intergasheating.co.uk West Midlands DY6 7FS...
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