Lochinvar CHA 100 CE Installation, Commissioning, User & Maintenance Instructions Download Page 36

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Conversion to a different gas category

Instruction manual CHA

13. Check the supply pressure and burner pressure

(3.11 "Checking the supply

pressure and burner pressure")

14. Remove the sticker showing the new gas category from the conversion kit,

and attach it below the appliance's rating plate. This clearly indicates that the
appliance may no longer be run on the gas for which it was originally
supplied.

15. Start the appliance

(9 "Starting the water heater")

4.2

Conversion of CHA
700 to another gas
category

4.2.1

Introduction

This paragraph describes:
•

Conversion from LP gas to natural gas

•

Conversion from natural gas to LP gas

Conversion of gas control

Legend

Unused numbers are not applicable
1.

burner pressure regulator

gas control

high-low control

IMD-0132 R1

Summary of Contents for CHA 100 CE

Page 1: ...ation Commissioning User Maintenance Instructions High Efficiency Water Heaters and Boilers Charger Direct Gas Fired Floor Standing Water Heater with Automatic Pilot Ignition Models CHA 100 G CE and P...

Page 2: ...Lochinvar Ltd 7 Lombard Way The MXL Centre Banbury Oxon OX16 4TJ www lochinvar ltd uk High Efficiency Water Heaters and Boilers Tel 44 0 1295 269 981 Fax 44 0 1295 271 640 Email info lochinvar ltd uk...

Page 3: ...rs Liability The supplier accepts no liability for claims from third parties arising from unauthorised use use other than that stated in this manual and use other than in accordance with the General C...

Page 4: ...4 Instruction manual CHA gis...

Page 5: ...onnections 23 3 8 Gas connection 24 3 9 Flue gas discharge 25 3 10 Electrical connection 26 3 11 Checking the supply pressure and burner pressure 29 4 Conversion to a different gas category 33 4 1 Con...

Page 6: ...riod 51 11 Errors 53 11 1 Introduction 53 11 2 Error conditions 53 11 3 CHA Troubleshooting table for general errors 54 11 4 CHA Troubleshooting table no hot water 55 11 5 CHA Troubleshooting table In...

Page 7: ...ater 1 2 What to do if you smell gas Warning If you smell gas No naked flames No smoking Avoid causing sparks Do not use any electrical equipment or switch i e no telephones plugs or bells Open window...

Page 8: ...ter heater is not intended to be used by children Always supervise children and ensure that they do not play with the water heater 1 5 Maintenance A service should be carried out at least once a year...

Page 9: ...chapter describes how to fill the water heater Draining This chapter describes how to drain the water heater The control panel This chapter describes the appliance s control panel and how to use it St...

Page 10: ...Introduction 10 Instruction manual CHA 1 gis...

Page 11: ...ode 10 tank 11 heat exchanger 12 inspection and cleaning opening 14 cold water inlet 15 drain valve 16 gas control valve 20 hot surface igniter 21 flame probe 22 chimney flue 24 insulation layer 33 dr...

Page 12: ...he primary air required for combustion The narrow opening in the orifice causes the gas flow to accelerate This in turn causes a partial vacuum It is this partial vacuum that draws in the air the Vent...

Page 13: ...obe 2 4 2 Water temperature protection By means of the frost high limit and safety thermostats the burner control monitors three temperatures that are important for safety The table explains the worki...

Page 14: ...of excessive pressure in the tank This prevents damage being caused to the enamelled coating in the appliance or to the tank A non return valve prevents excessive pressure buildup in the water supply...

Page 15: ...ut before the appliance may be started up 9 Starting the water heater in particular Packaging Ambient conditions Technical specifications Vented water connections Vented water connections Gas connecti...

Page 16: ...They are type B11BS 3 3 1 Air humidity and ambient temperature The boiler room must be frost free or be protected against frost The table shows the ambient conditions that must be adhered to for corre...

Page 17: ...e clearance is less than 100 cm flexible magnesium anodes may be ordered Comment When installing the appliance be aware that any leakage from the tank and or connections can cause damage to the immedi...

Page 18: ...k the dimensions 3 4 Technical specifications gas data 3 4 3 Gas data and other specifications 3 4 2 General and electrical specifications of any accessories you plan to use 3 4 1 Dimensions of the wa...

Page 19: ...supply connection external R11 2 R11 2 R11 2 R11 2 R11 2 R11 2 R11 2 R11 2 2 Hot water outlet connection internal Rp11 2 Rp11 2 Rp11 2 Rp11 2 Rp11 2 Rp11 2 Rp11 2 Rp11 2 3 Gas control connection inte...

Page 20: ...1 70 1 75 2 25 1 Blank plate 2 Burner pressure regulator 3 High low control 1 2 or 3 1 1 1 1 1 1 1 3 G30 30 mbar butane Nominal load gross calorific value kW 33 9 42 2 53 4 59 2 80 8 100 1 127 5 140 3...

Page 21: ...ory 4 stop valve recommended 5 non return valve mandatory 6 circulation pump optional 7 top to bottom circulation pump optional 9 drain valve 10 manual gas valve mandatory 11 service stop valve mandat...

Page 22: ...raw off pattern fit a shunt pipe 22 mm a stop valve 11 and a top to bottom circulation pump 7 2 Fit a non return valve 5 3 Fit a stop valve 11 3 6 3 Hot water side See B in the installation diagram 3...

Page 23: ...llation diagram 1 Fit an approved stop valve 4 on the cold water side as required by the applicable regulations 1 3 Regulations 2 The maximum working pressure of the water heater is 8 bar Because the...

Page 24: ...valve 5 after the circulation pump to guarantee the direction of circulation 3 Fit two stop valves for servicing 4 4 Connect the circulation piping to the T piece on the drain valve 9 as per the drain...

Page 25: ...0 5 metres length to the opening of the draft diverter before fitting the rest of the chimney materials according to current regulations 1 3 Regulations Installing the draught diverter Comment Use fl...

Page 26: ...l N to the neutral of the appliance Note There must also be no potential difference between neutral N and earth Contact the supplier if this is the case For more information or to order this isolating...

Page 27: ...Leave the water heater electrically isolated until you are ready to commission it 1 Feed the power cable through the metric strain relief in the top of the control column 2 Connect the earth live L1...

Page 28: ...terminal that is switched when an error is detected Devices e g one or more lights can be connected to this in order to signal the fault max 250V 10A The device or devices may be connected in either...

Page 29: ...check the supply pressure and burner pressure Comment The easiest way to check the gas pressures is by using two pressure gauges This procedure assumes that these two gauges are available Gas control...

Page 30: ...n the gas supply and bleed the air from the mains gas supply via test nipple 6 5 Connect a pressure gauge to the manifold test nipple 6 when gas starts to flow from this nipple 6 Switch on the power t...

Page 31: ...lator the pressure can be adjusted 3 11 2 Adjusting the pressure 3 11 2 Adjusting the pressure 1 Remove the cap 2 from the burner pressure regulator 2 Depending on the correction required correct the...

Page 32: ...Installation 32 Instruction manual CHA 3 is...

Page 33: ...m gas or natural gas or other gas category other than that for which the appliance has been configured at the factory then the appliance will have be adapted using a special conversion kit Note You mu...

Page 34: ...Use a suitable tool to remove the retaining strips 2 Note that the retaining strips have very sharp edges Withdraw the retaining strips straight upwards Comment The radiation shield condensation tray...

Page 35: ...3 Gas data then the gas control must be fitted with a blank plate with cork gasket A burner pressure that deviates in comparison to the supply pressure requires the use of a burner pressure regulator...

Page 36: ...ing plate This clearly indicates that the appliance may no longer be run on the gas for which it was originally supplied 15 Start the appliance 9 Starting the water heater 4 2 Conversion of CHA 700 to...

Page 37: ...rry out steps 1 through 9 4 1 Conversion of CHA 100 to 600 to another gas category 2 Detach the high low control 9 Legend Unused numbers are not applicable 4 timers 5 bracket 6 6 contact terminal stri...

Page 38: ...rsion set Attach the burner pressure regulator to the gas control using the two small screws supplied 7 Installing and removing add on components Legend Unused numbers are not applicable 4 timers 5 br...

Page 39: ...rry out steps 1 through 9 4 1 Conversion of CHA 100 to 600 to another gas category 2 Detach the burner pressure regulator 1 3 Fit the high low controller 9 including the sealing gasket from the conver...

Page 40: ...Conversion to a different gas category 40 Instruction manual CHA 4 is...

Page 41: ...pump optional 7 top to bottom circulation pump optional 9 drain valve 10 manual gas valve mandatory 11 service stop valve mandatory 12 temperature gauge recommended 14 draw off points 15 expansion val...

Page 42: ...is defective or incorrectly fitted The water supply pressure is greater than the specified 8 bar Rectify this by fitting a pressure reducing valve 1 The expansion valve in the protected cold supply se...

Page 43: ...pump optional 7 top to bottom circulation pump optional 9 drain valve 10 manual gas valve mandatory 11 service stop valve mandatory 12 temperature gauge recommended 14 draw off points 15 expansion va...

Page 44: ...valve 9 7 Bleed the appliance or installation so that it drains completely 6 2 Draining vented installations Some service activities require the water heater to be drained The procedure is as follows...

Page 45: ...See Operating modes The appliance remains live even when in the OFF mode This ensures that the frost protection remains activated Comment To isolate the appliance electrically you must use the isolato...

Page 46: ...l then automatically start up again if there is demand If this is not the case please consult the error condition summary 11 Errors Comment The draught diverter may be hot Flue gas thermostat reset bu...

Page 47: ...6 Weekly timer circuit the green LED is illuminated Comment If no week timer is installed the II mode is the same as the 0 mode OFF In this mode the frost protection is activated The isolator is set t...

Page 48: ...ause the appliance must be returned to service by pressing the reset button 7 6 Burner control reset button Blocking errors You can recognise this condition from the fact that the appliance does not s...

Page 49: ...The heating cycle runs successively through the following states 1 HEAT DEMAND 2 WAITING TIME 3 PRE GLOW 4 IGNITION 5 RUNNING 6 WAITING TIME The complete cycle is explained in the example set out bel...

Page 50: ...Starting the water heater 50 Instruction manual CHA 9 gis...

Page 51: ...frost protection to prevent water freezing in the appliance Activate frost protection by switching the ON OFF switch on the control panel to the 0 position 10 3 Isolating the appliance from the mains...

Page 52: ...Shutting down 52 Instruction manual CHA 10 gis...

Page 53: ...art the appliance Lockout error from the flue gas thermostat When this happens the red LED on the control panel will be illuminated The burner control is locked out After eliminating the cause the app...

Page 54: ...installation engineer Leakage from another nearby water water heater or pipe segment Trace the leak Leakage from the water heater tank Consult the supplier and or manufacturer Condensation Before dra...

Page 55: ...making contact with the water Break in one of the cables Anode poorly earthed 3 Check to see that all connections have been made properly 4 Check that the Power Anode is properly connected see Electri...

Page 56: ...ere is power to the burner control 5 Check fuse in the burner control The measured voltage must be 230 VAC 15 10 See the electrical diagram 14 Electrical diagram If the error cannot be rectified conta...

Page 57: ...ck that the gas valve is open Check whether the gas control is opening clicking of the gas control Check the leads of the gas control 2 No ignition Check whether the hot surface igniter lights up Chec...

Page 58: ...ol thermostat to a higher value Hot water supply is used up 1 Reduce hot water consumption and give the water heater time to heat up 2 If this error persists check whether the high limit thermostat is...

Page 59: ...e control thermostat note the original setting to the highest position and put the ON OFF switch back to position I 3 If there is no demand draw some hot water off to create demand 4 Check whether the...

Page 60: ...connector on the appliance 12 3 3 Descaling and cleaning the tank Scale and lime build up prevent effective conduction of the heat to the water Periodic cleaning and descaling prevents build up of the...

Page 61: ...lid with a torque no greater than 50 Nm Use suitable tools for this To seal the cleaning opening properly we recommend tightening the bolts in the sequence shown in the diagram 12 4 Gas side maintenan...

Page 62: ...fles from the appliance 2 Check the flue baffles for rust and remove any which is present 3 Check the flue baffles for wear and replace any worn flue baffles 4 Place a new sealing ring on the rim of t...

Page 63: ...any relevant requirements of the local gas distributor and local authority b The water heater remains installed at the original site of installation c The water heater is used exclusively with drinki...

Page 64: ...anty are limited to free delivery from the warehouse of the replacement assemblies parts or water heater respectively Labor installation and any other costs associated with the replacement will not be...

Page 65: ...n manual CHA 65 is 14 Electrical diagram 14 1 Introduction This section gives the electrical diagrams for Electrical diagram for CHA 100 to 700 natural gas CHA 100 to 600 LPG Electrical diagram for CH...

Page 66: ...4 N 230V AC L 50Hz N N N O C P A H G J P O 2 N N L L I N N Q I 0 II 4 K L M L L L L 1 2 3 4 M R1 12 1 2 3 4 5 13 14 15 L2 3 L 4 12 12 1 4 1 1 4 2 1 2 1 4 4 4 3 3 3 4 3 11 B 1 C 4 3 12 4 3 11 12 4 N T...

Page 67: ...of thermostat circuit GV1 Phase output to gas control MAX Phase input to safety thermostat LG Phase output to hot surface igniter I Ionisation detection output NO Normal open P Phase input to alarm NC...

Page 68: ...L N H N 1 G HOT L A G N X FACE SUR M I FUSE F1 P 2 1 L1 3 4 N 220 240V AC L 50Hz N N N O C P A R Q 2 N N L L I N N S I 0 II 4 M N O L L L L 1 2 3 4 M R1 12 1 2 3 4 5 13 14 15 L2 3 L 4 NO P NC 8 7 N L...

Page 69: ...ircuit GV1 Phase output to gas control MAX Phase input to safety thermostat LG Phase output to hot surface igniter I Ionisation detection output NO Normal open P Phase input to alarm NC Normal closed...

Page 70: ...Electrical diagram 70 Instruction manual CHA 14 is...

Page 71: ...ndards used EN55014 1 1993 EN55014 2 1997 EN61000 3 2 1995 EN61000 3 3 1995 EN50165 1997 March 1 2012 EEC Declaration of Conformity Supplier hereby declares that the following products Product descrip...

Page 72: ...Declaration of Conformity 72 Instruction manual CHA 15 is...

Page 73: ...stallation diagram 21 installation engineer 8 9 isolator 27 J join circulation pipe 23 24 cold water side 22 23 electrical 26 27 gas 24 hot water side 23 shuntleiding 22 23 L liability 3 M mains power...

Page 74: ...0310 569 1 0 UK Index Instruction manual CHA...

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Lochinvar CHA 100 CE, Installation, Commissioning, User & Maintenance Instructions

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