Intergas Combi Compact HRE 24/18 Installation, Service And User Instructions Manual
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Intergas Heating Ltd
Combi Compact
HRE 24/18
HRE 28/24
HRE 36/30
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)
1
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Summary of Contents for Intergas Combi Compact HRE 24/18
- Page 1 (G.C. 47-291-02) HRE 36/30 (G.C. 47-291-03) 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. Intergas Heating Ltd...
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Page 2: Table Of Contents
Domestic hot water mode ................................11 Operating modes ...................................11 Clock function ....................................13 PC interface ....................................13 Test programs....................................13 Frost protection.....................................14 Installer handy hints Accessories Installation Overall dimensions ..................................18 Installation location ..................................19 Assembly .......................................20 Installing the appliance ..................................21 Connection Connecting CH installation ................................22 Intergas Heating Ltd... -
Page 3: Intergas Heating Ltd
© 2009 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. -
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: Approvals
The Intergas Combi Compact HRE range of central heating boilers are manufactured from high quality materials and designed for reliability and optimum performance. Intergas is committed to the continual development of their appliances and reserves the right to make changes without notification to ensure their customers benefit from the latest advances in combustion technology and energy conservation. -
Page 8: Technical Data
(*) The maximum CH power is factory set at 70% of the highest value (See section §10.4, Setting maximum CH power). Rated power CH measured under SEDBUK conditions. We have a policy for continual improvement and development, therefore we reserve the right to change specifications without prior notice. Intergas Heating Ltd... -
Page 9: 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 10: General Boiler Information
3 GENERAL BOILER INFORMATION 3.1 General The Intergas Combi Compact HRE wall mounted, gas fired boiler is a closed appliance. The appliance is designed to deliver heat to the water in a CH system and the DHW installation. The air supply and combustion gas flue connection is as standard prepared for a concentric 60/100 horizontal flue system. -
Page 11: 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 12 DHW water temperature reaches the DHW temperature setting. The water temperature can be set between 40°C and 65°C (See § 10.1.6) and is displayed on the operating panel during DHW operation. Intergas Heating Ltd...
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Page 13: 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 14: 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 15: Installer Handy Hints
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 16: Accessories
Deflector kit 082976 Weather slate (steep roof) 087910 Weather slate (flat roof) 087372 Extension L = 100 incl. wall bracket 082975 Horizontal offset wall terminal 082970 Horizontal telescopic offset wall terminal 081280 Horizontal telescopic wall terminal 081281 Intergas Heating Ltd... - Page 17 Vertical roof terminal 086842 Plume management kit 082974 Elbow 90° (for plume management kit) 081284 Elbow 60° (for plume management kit) 081285 Extension L = 100 incl. wall bracket (for plume management kit) 081286 Robo kit 090000 Intergas Heating Ltd...
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Page 18: Installation
Supply CH Ø22 Return CH Ø22 ½” Cold tap water Ø15 Ø15 Condensate drain Ø25 (flexible) Drain PRV Ø15 Combi Compact HRE 36/30 Combi Compact HRE 28/24 Combi Compact HRE 24/18 Flue pipe / air Ø60/100 (concentric) supply Intergas Heating Ltd... -
Page 19: 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 20: Assembly
(= straight upwards). Do not over tighten connections. 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 Intergas Heating Ltd... -
Page 21: Installing The Appliance
32mm diameter in order to prevent the condensate from freezing. 7.4.1 Fitting the cover plate 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 22: 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 23: Connecting Dhw Installation
For this purpose the DHW connections below the appliance must be removed. 8.2.2 Flow resistance graph for appliance DHW circuit A = Combi Compact HRE 24/18 B = Combi Compact HRE 28/24 C = Combi Compact HRE 36/30 X. Bar Y. -
Page 24: Electrical Connection
24 V DC room thermostat 0 V DC Open Therm (OT) 11 – 12 Temperature control Connector X2 Notes Room thermostat 230 V 1 – 3 Remove linking 6 – 7 Frost thermostat 230 V 1 – 3 Intergas Heating Ltd... -
Page 25: Gas Connection
When a 24 volt thermostat is connected to contacts 6 and 7, the loop in 6 – 7 must be removed. 8.4.2 230 volt room thermostat To be connected to contacts 1 and 3 of connector X2. See electrical diagram. Warning High Voltage Isolate the appliance from the electrical supply before connecting the thermostat. Intergas Heating Ltd... -
Page 26: Flue System
Note Only use approved Intergas flue products with this boiler, which can be sourced from the supplier of your boiler or Intergas stockist. For C63 flue types all CE approved flue terminals can be used. The standard horizontal flue pipe is not supplied with the boiler and should be purchased separately from your supplier. - Page 27 Intergas stockist. 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. The connection of the vertical flue system is similar to the horizontal flue connection.
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Page 28: Commissioning The Appliance
With the boiler operating in the maximum rate condition check that the operational (working) gas pressure at the the flue gas sampling point (X) complies with the requirements of § 10.7.2. Ensure that this inlet pressure can be obtained with all other gas appliances in the property working. Intergas Heating Ltd... -
Page 29: 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 30: Setting And Adjusting The Clock Functions
11. c-on (continuous on). The boiler will respond on every CH demand from the room thermostat without any time limit. 12. OFF The boiler will not respond on any CH demand from the room thermostat. Intergas Heating Ltd... -
Page 31: 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 32: 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 33: Setting Via The Service Code
DHW tank Waiting time after a DHW demand before Adjustment range 0 to 15 minutes a CH demand is answered Anti-cycling period during CH operation Minimal switch-off time in CH operation Adjustable from 0 to 15 minutes Intergas Heating Ltd... -
Page 34: Setting Maximum Ch Power
17,8 kW 650 l/h 22,8 kW 750 l/h 26,3 kW Appliance pressure loss graph, CH side Combi Compact HRE 24/18 Combi Compact HRE 28/24 Combi Compact HRE 36/30 Pump setting I Pump setting II Pump setting III Flow in l/h Pressure loss / water head in mH 10.6 Weather–... -
Page 35: Conversion To Different Gas Type
Min. start rpm (% of max) (parameter F and F . ) CAUTION Check that the Gas test point is gas-tight. No adjustment should be made to the gas valve without prior permission of Intergas Technical Services. Intergas Heating Ltd... -
Page 36: Setting Gas/Air Adjustment
It is not possible to adjust the CO level at high setting. When the level at high setting is not within the prescribed tolerance band please contact Intergas Heating. Note the measured CO value and adjust the appliance to the lowest power by... -
Page 37: Faults
Check adjustment. See gas/air adjustment. faulty. Check the wiring. Check the fuse , if necessary, replace the fan. Fan dirty. Clean the fan. Gas valve faulty. Replace the gas valve. Re-adjust the gas valve, see gas/air adjustment Intergas Heating Ltd... - Page 38 Check the power supply. Check connector X2. Pump not running. Replace faulty pump. Burner not firing on CH: sensor S1 or S2 faulty. Replace sensor S1 or S2. See fault code. Burner does not ignite. See burner does not ignite. Intergas Heating Ltd...
- Page 39 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 40: Maintenance
Clean the underside of the heat exchanger. Clean the condensate drain pan with water. Clean the condensate trap with water (The side branch on the condensate trap may be sawn off to simplify access for a cleaning brush). Intergas Heating Ltd... -
Page 41: Assembly
§ 10.7. If the combustion reading is greater than the acceptable value and the integrity of the complete flue system and combustion circuit seals have been verified and the inlet gas pressure has been verified, proceed as in § 10.7.2. Intergas Heating Ltd... -
Page 42: Electrical Diagram
13.1 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 43: Short Spares List
O-ring gas restriction ring 875827 O-ring front plate Combi Compact HRE 36/30 877807 O-ring front plate Combi Compact HRE 28/24 877927 O-ring front plate Combi Compact HRE 24/18 876467 Seal ring condensate collector (heat exchanger connection) 878147 O-ring flue pipe dia 68*4 878537... -
Page 44: Warranty Conditions
15 WARRANTY CONDITIONS the Conditions of Sale. With due regard for the conditions indicated below, Intergas Heating A copy of these conditions will be sent to you free of charge on Ltd warrants to the authorised installer the soundness of the request. -
Page 45: Gas Boiler System Commissioning Checklist
17 GAS BOILER SYSTEM COMMISSIONING CHECKLIST Intergas Heating Ltd... -
Page 46: Service Record
18 SERVICE RECORD Intergas Heating Ltd... - Page 47 __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ Intergas Heating Ltd...
- Page 48 Intergas boilers are manufactured in a Kiwa ISO 9001 certified production faccility. 88287708 Intergas Heating Ltd Intergas Heating Limited Unit 6, West Court Buntsford Park Road Bromsgrove Worcestershire B60 3DX Telephone : 01527 888000 : 01527 888001 info@intergasheating.co.uk www.intergasheating.co.uk Intergas Heating Ltd...
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