High efficiency wall-mounted gas boilers (12 pages)
Summary of Contents for Intergas Compact HRE 18 OV
Page 1
(G.C. 41-291-05) 30 OV (G.C. 41-291-06) 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...
• 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.
1.6 Abbreviations and descriptions used Description Referred to as High efficiency Intergas Compact HRE OV wall mounted gas fired boiler Appliance Appliance plus pipe work for central heating CH installation Appliance plus pipe work for domestic hot water DHW installation 1.7 This manual...
The Intergas Compact HRE OV 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.
Power consumption : full load Power consumption: partial load Power consumption: standby Boiler dimensions and weight Height Width Depth Weight We have a policy for continual improvement and development, therefore we reserve the right to change specifications without prior notice. Intergas Heating Ltd...
3 GENERAL BOILER INFORMATION 3.1 General The Intergas Compact HRE OV wall mounted, gas fired boiler is suitable for use in open vent systems with a heating system feed tank. The appliance is designed to deliver heat to the water in a CH system and when an indirectly heated domestic hot water (DHW) storage cylinder is installed, apply heat to the DHW installation.
4 OPERATION 4.1 General The Intergas Compact HRE OV wall mounted, gas fired open vent boiler is a modulating high efficiency boiler. This means that the power is adjusted in line with the desired heat requirement. It is designed to be used in an open vented system with heating system feed tank.
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.
If the appliance is out of operation ( on the service display) the appliance ’s 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...
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.
Supply CH Ø22 Return CH Ø22 ½” Condensate drain Ø25 (flexible) Drain PRV Ø15 Compact HRE OV 30 Compact HRE OV 24 Compact HRE OV 18 Standard flue pipe Ø60/100 (concentric) Standard off-set flue Ø60/100 (concentric) pipe Intergas Heating Ltd...
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...
32mm diameter in order to prevent the condensate from freezing. 7.3.1 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...
Pull the boiler controller unit forwards; the boiler controller will tip downwards to provide access. Consult sections § 8.3.1 and chapter 13 for making the connections. After making the desired connections plug the appliance into an earthed wall socket. Intergas Heating Ltd...
This is a 24 volt connection and no mains power must be applied to these terminals. See electrical diagram, page 38. Note When a 24 volt thermostat is connected to contacts 6 and 7, the loop in 6 – 7 must be removed. Intergas Heating Ltd...
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 22
Terminals adjacent to windows or openings on pitched and flat roofs: The flue should not penetrate this area 2000 mm 600 mm Note Intergas cannot be held responsible for atmosferic conditions when siting flue terminals. Intergas Heating Ltd...
Page 23
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.
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...
For setting the clock see § 9.3. Notes The appliance is equipped with an electronic boiler controller, which ignites the • burner and continuously monitors the flame during each request for heat from the heating or from the hot water supply. Intergas Heating Ltd...
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...
(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...
If no key is pressed during a period of 30 seconds, the settings menu is closed automatically and the changes are stored. 10.1.4 Maximum CH supply temperature Press the key until the LED at starts to flash. With the key s set the temperature between 30°C and 90°C (default value 80°C). Intergas Heating Ltd...
DHW cylinder Waiting time after a DHW demand before a Adjustment range 0 to 15 minutes 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...
650 l/h 22,8 kW 750 l/h 26,3 kW Appliance pressure loss graph, CH side Compact HRE 18 OV Compact HRE 24 OV Compact HRE 30 OV Flow in l/h Pressure loss / water head in mH 10.6 Weather– compensation adjustment...
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...
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...
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 34
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 35
Hot water does not reach temperature (only when an indirectly heated DHW storage cylinder is applied) Possible causes: Solution: Temperature setting for DHW storage cylinder Set the DHW storage cylinder temperature. See 10 Setting and adjustment. too low. Intergas Heating Ltd...
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...
§ 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...
O-ring front plate Compact HRE OV 24 877927 O-ring front plate Compact HRE OV 18 876467 Seal ring condensate collector (heat exchanger connection) 878147 O-ring flue pipe dia 68*4 878537 Seal ring flue pipe (outlet side) 878547 Condensate trap connection 878577 Intergas Heating Ltd...
15 WARRANTY CONDITIONS A copy of these conditions will be sent to you free of charge on With due regard for the conditions indicated below, Intergas Heating request. Conditions to the contrary are expressly rejected. Ltd warrants to the authorised installer the soundness of the...
Need help?
Do you have a question about the Compact HRE 18 OV and is the answer not in the manual?
Questions and answers