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High Efficiency Water Heaters and Boilers
Installation, Commissioning, User & Maintenance Instructions
Traditionally Gas Fired Single Flue
Water Heater with Pilot Ignition
These instructions must be read and understood before installing, commissioning, operating or maintaining the equipment.
Knight
IMPORTANT INFORMATION
Models:
LG 30 G CE
and PG CE
LG 40 G CE
and PG CE
LG 50
G CE and PG CE
0310566
March 2012
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Summary of Contents for Lochinvar Knight LG30GCE
- Page 1 High Efficiency Water Heaters and Boilers Knight Installation, Commissioning, User & Maintenance Instructions Traditionally Gas Fired Single Flue Water Heater with Pilot Ignition Models: LG 30 G CE and PG CE LG 40 G CE and PG CE LG 50 G CE and PG CE 0310566 March 2012...
- Page 2 The appliance may only be installed in a room if this room meets the ventilation requirements. lochinvar ltd. accepts no responsibility for warranty, service and/or product liabi- lity in case of unauthorized alterations, product modifications or repair.
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Page 3: Table Of Contents
ConTenTs PaGe General ....................Introduction ......................4 Technical safety equipment ................6 1.2.1 Gas control block ....................6 1.2.2 Combustion products discharge safety device ..........6 Technical information ..................8 1.3.1 Dimensions ......................8 1.3.2 Technical data ....................10 For the installer .................. Installation instructions ..................11 2.1.1 Installation .......................11 2.1.2 Water circulation system .................11... -
Page 4: General
1. General introduction Construction of the heaters is in ac- cordance with the European standard for gas heated water storage heaters for sa- nitary application (EN 89). The appliance thus meets the European Directory for Gas Appliances and is therefore entitled to carry the CE-marking. - Page 5 AOS 0478 Figure 1 - Cross-section of the heater 1) Draught diverter 10) Flue baffle 11) Sacrificial anode 2) Hot water outlet 3) Insulation 12) Drain tap 4) Flue tube 13) Atmospheric burner 5) Glass lined tank 14) Pilot light burner with 6) Gas control valve thermocouple 7) Cold water inlet...
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Page 6: Technical Safety Equipment
Technical safety equipment 1.2.1 Gas control valve The water heater has been fitted with a gas control block consisting of a thermo-electrical pilot flame safeguard, pilot flame pressure regulator, burner pressure regulator, a control thermostat (adjustable between 30°C and 71°C) and a safety thermostat (82°C). - Page 7 AOS 0479 Figure 2 - Combustion products discharge safety device with gas control valve 1) Combustion products discharge 4) Thermocouple safety device thermostat 5) Gas control block 2) Sensor Combustion products 6) Reset button discharge safety device 7) Pilot burner thermostat 8) Temperature regulator knob 3) Thermocouple with built-in...
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Page 8: Technical Information
Technical information 1.3.1 dimensions These water heaters are only suitable for a flue tube with minimal the announced diameter (dimension G). dimen- sions lG 30 lG 40 lG 50 (see draw.3) 1280 1370 1670 1120 1210 1540 11 0 12 0 1590 11 0 12 0... - Page 9 IMD-0266 Figure 3 - Dimensions...
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Page 10: Technical Data
1.3.2 Technical data Device category: II2H3+ desCriPTion unit lG 30 lG 40 lG 50 daTa naTural Gas G20 - 20 mbar: Nominal load (gross) 11.3 18.3 Nominal capacity 14.0 Supply pressure mbar Burner pressure mbar 12.5 12.5 10.5 Gas consumption * Diameter main orifice 2.35 2.60... -
Page 11: For The Installer
The installation of this water heater should be carried out by a suitably qua- Unvented lified competent person. It is a criminal To install an 'Lochinvar Ltd.' on an offence for unqualified persons to install unvented cold water supply system a kit gas equipment. -
Page 12: Gas Connection
See figure 4. leak detector (do not use a naked flame). 'Lochinvar Ltd.' are tested to a maximum 2.1.4 Flue system pressure of 12 bar and a maximum working pressure of 8 bar. -
Page 13: Flue Down Draught Safety Device
All flue materials should be corrosion resistant i.e. stainless steel or galvanised and must include a tested and approved terminal to BS 5440 part I. If the flue passes through any combustible material measures must be taken to protect against the possibility of fire. All flues must terminate in free air space approx. -
Page 14: Commissioning
Commissioning 5. Keep the control button ( ) pushed- in for approximately 20 seconds. After 2.2.1 Filling the water heater releasing the button the pilot should remain burning. If the pilot extingui- 1. Close the drain tap; shes you should wait 5 minutes be- 2. -
Page 15: Removing And Replacing The Inner Door
2.2.3 removing and replacing the inner door (only for the LG 30 and LG 40 model, see figure 7a). Mode of operation: 1. Place lip A through the recess on the right and subsequently slide it down behind the steel wall. See to it that both lower lips remain in front of the metal wall;... -
Page 16: Temperature Regulation
3. Close the gas tap in the supply pipe. regulates the gas supply. The main In case of longer interruptions or in burner will ignite as soon as a reduction the event of risk of frost it is recom- in water temperature is sensed by the mended to also close the cold water thermostat. -
Page 17: Setting The Nominal Heat Input
setting the nominal 3. Check the burner pressure and, if heat input necessary, reset by means of the adjusting screw “pr adj” (pressure adjustment; see Figure 9). To make The gas control has been factory preset this possible the temperature control to the water heater nominal heat input. -
Page 18: Conversion Procedure
Converting to another type of gas description unit lG 30 lG 40 lG 50 G30 G31 G31 G20 G30 G31 Inletpressure mbar Burner pressure mbar 12.5 12.5 10.5 Diameter main 2.35 1.40 1.40 2.60 1.50 1.50 3.50 1.95 1.95 injector Diameter pilot injector 0.27... -
Page 19: Maintenance
AOS 0487 Figure 10 - Conversion to another gas maintenance The type of anode required can be determined on the basis of the type of the appliance and the serial number. To ensure safe and efficient operation of the water heater it is recommended that it is cleaned and serviced at least once a 2.8.2 Cleaning... -
Page 20: Decalcification
inlet combination 2.8.3 Decalcification Formation of lime scale depends on the quality and quantity of the water used. Not applicable in U.K. and Ireland. In addition higher water temperatures lead to more deposit in the appliance. 2.10 Fault finding A temperature setting of 60°C is recommended in order to keep the calcification at a low level. -
Page 21: Flue Down Draught Safety Device
2.11 Gas smell should be set to a lower water temperature. If the pilot is extinguished repeatedly at higher temperatures than Warning normal, this indicates that the safety Immediately shut the main gas tap. thermostat is operating. Do not light any fire or switch on any lights, do not use any electrical 2.10.2 Flue down draught safety... -
Page 22: Putting Into Operation
3.1.2 Putting into operation: at lower temperatures. In addition a safety thermostat has been fitted. This thermostat 1. Check whether the device has been completely shuts off the gas supply if the filled with water and whether the gas water temperature reaches 82°C, also supply to the water heater is open;... -
Page 23: Fault Overview
Fault overview Fault Possible cause Corrective action Gas smell If you smell gas you should immediately close the main gas tap you should not light any fire or switch on light, electrical switches or bells. Open windows and immediately contact your installer or the local gas company. - Page 24 Fault Possible cause Corrective action Insufficient Safety thermostat has Set the temperature regulator at a hot water, or closed the gas supply lower temperature and reignite the pilot none at all because the water burner. temperature was too high Hot water storage empty Reduce the consumption of hot water.
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Page 25: Guarantee
The tank is safeguarded against harm- verification, and at the sole discretion ful scaling and lime build-up by means of Lochinvar Ltd, an assembly or part of periodic maintenance. (with exclusion of the tank) proves to be e. The water temperatures in the heater... -
Page 26: Scope Of The Warranty
Under the terms of the supplied warranty, Lochinvar Ltd is not liable for damage to persons or property caused by (assemblies or parts, or the glass- lined steel tank of) a (replacement) water... -
Page 27: Declaration Of Conformity
5. deClaraTion oF ConFOrmiTy eeC - declaration of Conformity supplier: lochinvar limited 7 lombard Way The mXl Centre Banbury - united kingdom hereby declares that the following products: Product description: Commercial Gas Fired storage Water Heater Product models: lG 30, lG 40, lG 50... - Page 28 High Efficiency Water Heaters and Boilers Lochinvar Ltd 7 Lombard Way The MXL Centre Banbury Oxon Ox16 4TJ Tel: +44 (0) 1295 269981 Fax: +44 (0) 1295 271640 Email: info@lochinvar.ltd.uk www.lochinvar.ltd.uk...
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