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

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

Direct gas fired floor standing water heater with automatic pilot ignition
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High Efficiency Water Heaters and Boilers
Installation, Commissioning, User & Maintenance Instructions
Direct Gas Fired Floor Standing Water Heater
with Automatic Pilot Ignition
These instructions must be read and understood before installing, commissioning, operating or maintaining the equipment.
Charger
IMPORTANT INFORMATION
Models:
CHA 100 G CE and PG CE
CHA 155
G CE and PG CE
CHA
200 G CE and PG CE
CHA 300 G CE and PG CE
CHA 400 G CE and PG CE
CHA 500 G CE and PG CE
CHA 600 G CE and PG CE
CHA 700 G CE and PG CE
0310569
March 2012

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Summary of Contents for Lochinvar CHA 100 G CE

  • Page 1 Installation, Commissioning, User & Maintenance Instructions Direct Gas Fired Floor Standing Water Heater with Automatic Pilot Ignition Models: CHA 100 G CE and PG CE CHA 155 G CE and PG CE 200 G CE and PG CE CHA 300 G CE and PG CE...
  • Page 2 High Efficiency Water Heaters and Boilers Lochinvar Ltd Tel: +44 (0) 1295 269 981 7 Lombard Way Fax: +44 (0) 1295 271 640 The MXL Centre Email: info@lochinvar.ltd.uk Banbury Oxon OX16 4TJ www.lochinvar.ltd.uk...
  • Page 3 Read this manual carefully Warning Read this manual carefully before starting the water heater. Failure to read the manual and to follow the printed instructions may lead to personal injury and damage to the water heater. All rights reserved. Nothing from this publication may be copied, reproduced and/or published by means of printing, photocopying or by any means whatsoever without the prior written approval of the supplier.
  • Page 4 Instruction manual CHA...

  • Page 5: Table Of Contents

    Table of contents Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - 7 About the appliance - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7 What to do if you smell gas- - - - - - - - - - - - - - - - - - - - - - - - - 7 Regulations - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7 Target groups - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8...
  • Page 6 13.6 Obligations of Lochinvar Ltd - - - - - - - - - - - - - - - - - - - - - - - - 64 Electrical diagram - - - - - - - - - - - - - - - - - - - - - - - 65 14.1...

  • Page 7: Introduction

    Introduction About the appliance This manual describes how to install, service and use the CHA appliance. The CHA appliance is a gas-fired open boiler without fan. These Charger devices have a pilot flame ignition feature and flue gas discharge safety device The CHA is an appliance of type B 11BS The information in this manual applies to types: CHA 100, CHA 155, CHA 200,...

  • Page 8: Target Groups

    Introduction Furthermore, the installation must comply with the manufacturer's instructions. Comment The installation is also subject to any later amendments and/or additions to all regulations, requirements and guidelines published on or prior to the moment of installation. Target groups The three target groups for this manual are: •...

  • Page 9: Notation Conventions

    Notation The following notation is used in this manual: conventions Comment Important information. Note Ignoring this information can lead to the water heater being damaged. Warning Failure to carefully read this information may lead to danger of personal injury, and serious damage to the water heater. Overview of this The table provides an overview of the contents of this document.
  • Page 10 Introduction Instruction manual CHA...

  • Page 11: Working Principle Of The Water Heater

    Working principle of the water heater Introduction This chapter covers the following topics: • General working principle of the water heater; • Water heater operating cycle; • Protection for the water heater; • Safety of the installation. General working principle of the water Cut-away view of the water heater heater Legend...
  • Page 12 Working principle of the water heater In this appliance, the cold water enters the bottom of the tank through the cold water inlet (14). The heat of combustion is conducted to the water by the combustion chamber (8) and flue tubes. The heated tap water leaves the tank through the hot water outlet (2).

  • Page 13: Water Heater Operating Cycle

    Water heater operating cycle The entire appliance is controlled by the burner control (40) and the control thermostat (41) or frost thermostat (44). The control thermostat and frost thermostat both independently measure the water temperature (T ). The water appliance's heating cycle is activated as soon as T falls below the specified water threshold value (T...

  • Page 14: Unvented Installation

    Working principle of the water heater However, if the chimney is not drawing sufficiently (for example, due to a blockage in the chimney), the flue gases will 'reflux' and flow back past the flue gas thermostat sensor. The sensor will then detect an excessive temperature and the flue gas thermostat will open.

  • Page 15: Installation

    Installation Warning The installation must be carried out by an approved installation engineer in compliance with the general and local regulations imposed by the gas, water and power supply companies and the fire brigade. The appliance may only be installed in a room that complies with the requirements stated in national and local ventilation regulations (1.3...

  • Page 16: Ambient Conditions

    Installation Ambient conditions Note The water heater may not be used in rooms where chemical substances are stored or used due to the risk of explosion, and corrosion of the water heater. Some propellants, bleaching agents and degreasing agents etc. disperse vapours that are explosive and/or cause accelerated corrosion.

  • Page 17: Working Clearances

    3.3.3 Working clearances For access to the appliance, it is recommended that the following clearances are observed (see figure): • AA: around the appliance's control column and cleaning openings: 100 cm. • BB: all sides of the appliance: 50 cm. •...

  • Page 18: Technical Specifications

    Installation Technical The water heater is supplied without accessories. Check the dimensions (3.4 "Technical specifications"), gas data (3.4.3 "Gas data") specifications other specifications (3.4.2 "General and electrical specifications") of any accessories you plan to use. 3.4.1 Dimensions of the water heater Plan and elevation of the water heater Legend See the table.
  • Page 19 Dimensions (all measurements in mm unless otherwise indicated) A) Overall height 1910 1910 1890 2155 2155 1950 2145 2145 B) Height of top of appliance 1700 1700 1700 1900 1900 1735 1810 1810 D) Diameter of appliance F) Width G) |Chimney flue outlet diameter K) Gas connection height M) Cold water supply height N) Hot water outlet height...
  • Page 20 Installation 3.4.3 Gas data Gas data Description II Unit 2H3+ 2H: G20 - 20 mbar Orifice diameter 2.90 3.20 3.20 3.30 2.95 3.20 3.30 3.90 (1) = Blank plate 1, 2 or 3 2 (2) = Burner pressure regulator (3) = High/low regulator Nominal load (gross calorific 33.9 42.1...

  • Page 21: Installation Diagram

    Installation diagram The figure shows the Installation diagram. This diagram is referred to in the sections describing the actual connection procedure. Installation diagram Legend Unused numbers are not applicable pressure reducing valve (mandatory) T&P valve (mandatory) stop valve (recommended) non-return valve (mandatory) circulation pump (optional) top to bottom circulation pump (optional)

  • Page 22: Vented Water Connections

    Installation Vented water Warning The installation should be carried out by a competent person, in compliance connections with general and locally applicable regulations (1.3 "Regulations"). 3.6.1 Cold water side See (A) in the installation diagram (3.5 "Installation diagram"). 1. Fit an approved stop valve (4) on the cold water side between the cold water head tank (18) and the water heater, as required by applicable regulations.

  • Page 23: Unvented Water Connections

    3.6.5 Circulation pipe See (C) in the installation diagram (3.5 "Installation diagram"). If an immediate flow of hot water is required at draw-off points, a circulation pump can be installed. This improves comfort, and reduces water wastage. 1. Fit a circulation pump (6) of the correct capacity for the length and resistance of the circulation system.

  • Page 24: Gas Connection

    Installation 3.7.4 Drain valve 1. Fit the standard drain valve supplied (9). 2. If desired, fit a circulation pipe (3.6.5 "Circulation pipe"). Otherwise, fit the sealing nut and gasket (C) supplied with the drain valve, as per the diagram. IMD-0122 R1 3.7.5 Circulation pipe See (C) in the installation diagram...

  • Page 25: Flue Gas Discharge

    Flue gas discharge Warning The installation should be carried out by a competent person, in compliance with general and locally applicable regulations (1.3 "Regulations"). Fit a vertical chimney pipe (2) of at least 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...

  • Page 26: Electrical Connection

    Installation 3.10 Electrical Warning The installation should be carried out by a competent person, in compliance connection with general and locally applicable regulations (1.3 "Regulations"). 3.10.1 Preparations Note The appliance is phase-sensitive. It is absolutely essential to connect the mains live (L) to the live of the appliance, and the mains neutral (N) to the neutral of the appliance.
  • Page 27 The connector block (C) is now visible. Comment Please consult (14 "Electrical diagram") the appropriate electrical diagram for details of the connections of the electrical components. Terminal block Flue gas Potential-free Mains voltage Week timer circuit thermostat used contact 3.10.2 Introduction Topics covered in this paragraph, in sequence: •...
  • Page 28 Installation 3.10.5 Weekly timer circuit 1. Cut the image of the weekly timer from the operating panel. 2. Place the weekly timer in the opening thus created. 3. Connect the cables to points 7 (N), 8 (L) and 11 (L) using wire end sheaths. 4.

  • Page 29: Checking The Supply Pressure And Burner Pressure

    3.11 Checking the supply Comment Before starting the appliance and/or checking the supply pressure and pressure and burner burner pressure, you must fill (5 "Filling") the appliance. pressure Note Before starting up for the first time or after conversion, you must always check the supply pressure and burner pressure.
  • Page 30 Installation Gas control for CHA 700 Legend Unused numbers are not applicable burner pressure regulator burner pressure regulator burner pressure regulator adjusting screw supply pressure nipple gas control manifold test nipple high-low control IMD-0129 R1 3.11.1 Preparations 1. Isolate the appliance from the power supply (10.3 "Isolating the appliance from the mains").
  • Page 31 10. Use the pressure gauge to read the supply pressure at test nipple (6). Refer to the gas data table (3.4.3 "Gas data"). Comment Consult the mains gas supply company if the supply pressure is not correct. 11. Use the pressure gauge to read the burner pressure at nipple (8). Refer to the gas data table (3.4.3 "Gas data").
  • Page 32 Installation Instruction manual CHA...

  • Page 33: Conversion To A Different Gas Category

    Conversion to a different gas category Note The conversion may only by carried out by a competent person. If the appliance has to operate on a different family of gases (liquid petroleum 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.

  • Page 34: Conversion Of Cha 100 To 600 To Another Gas Category

    Conversion to a different gas category Exchanging orifices Legend cover plate retaining strips orifice with stamped figures IMD-0126 R1 Conversion of CHA 1. Isolate the appliance from the power supply (10.3 "Isolating the appliance from the mains"). 100 to 600 to another gas category 2.
  • Page 35 7. Select and fit the correct orifices from the conversion kit, based on the gas data table (3.4.3 "Gas data"). The orifice diameter is stamped on the orifice itself, see (3). 8. Re-fit the burners back in their original position. 9.

  • Page 36: Conversion Of Cha 700 To Another Gas Category

    Conversion to a different gas category 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.

  • Page 37: Conversion From Lp Gas To Natural Gas

    Conversion from LP Installing and removing add-on components gas to natural gas Legend Unused numbers are not applicable timers bracket 6-contact terminal strip pull reliefs 9-contact terminal strip metric pull relief high-low control lead IMD-0130 R1 1. Carry out steps 1 through 9 (4.1 "Conversion of CHA 100 to 600 to another category").
  • Page 38 Conversion to a different gas category 3. Fit the burner pressure regulator (1) including the sealing gasket from the conversion 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 timers...

  • Page 39: Conversion From Natural Gas To Lp Gas

    4. Detach the leads between the 6contact terminal strip(6) and the 9contact terminal strip (8). These are the leads for the timers, high-low control, gas control, hot surface igniter and flame probe. 5. Remove the timers (4), bracket (5), wiring harness (not shown) and 9contact terminal strip.
  • Page 40 Conversion to a different gas category Instruction manual CHA...

  • Page 41: Filling

    Filling Installation diagram Legend Unused numbers are not applicable pressure reducing valve (mandatory) T&P valve (mandatory) stop valve (recommended) non-return valve (mandatory) circulation pump (optional) top to bottom circulation pump (optional) drain valve manual gas valve (mandatory) service stop valve (mandatory) temperature gauge (recommended)

  • Page 42: Filling Unvented Installations

    Filling Filling unvented To fill the water heater, proceed as follows: installations 1. Open the stop valve (11) in the hot water pipe and, if present, the stop valves (4) for the circulation pump (6). 2. Close the drain valve (9). 3.

  • Page 43: Draining

    Draining Installation diagram Legend Unused numbers are not applicable pressure reducing valve (mandatory) T&P valve (mandatory) stop valve (recommended) non-return valve (mandatory) circulation pump (optional) top to bottom circulation pump (optional) drain valve manual gas valve (mandatory) service stop valve (mandatory) temperature gauge (recommended)

  • Page 44: Draining Unvented Installations

    Draining Draining unvented Some service activities require the water heater to be drained. The procedure is as follows: installations 1. Shut down the appliance by setting the ON/OFF switch on the control panel to position 0. RESET 0063 IMD-0473 R1 2.

  • Page 45: The Control Panel

    The control panel Introduction Name Meaning Topics covered in this chapter, in sequence: Week timer Sets the weekly water heating program • Control panel Power Anode Shows the Power • Explanation of icons indicator LED Anode status • On/off switch; Error LED Burner control lockout •...

  • Page 46: Burner Control Reset Button

    The control panel Burner control reset button Weekly timer circuit An error can cause the burner control to lock out. Optionally, you can use the week timer to program When this happens, the red LED on the control panel when the appliance must fulfil demand. Set the will illuminate.

  • Page 47: Status Of The Water Heater

    Status of the water heater Introduction • Contractor In this mode the appliance continuously fulfils Topics covered in this chapter, in sequence: demand. On the control panel: • Operating modes; the ON/OFF switch is in position I • Power Anode status;...

  • Page 48: Error Conditions

    Status of the water heater Error conditions If the water heater goes into an "error" condition, you will be unable to draw hot water. The frost protection will also be out of operation. These error conditions are divided into three groups: •...

  • Page 49: Starting The Water Heater

    Starting the water heater Introduction The complete cycle is explained in the example set out below. Topics covered in this chapter, in sequence: • Starting the appliance. Comment • The appliance's heating cycle. The appliance runs through an identical cycle when frost protection is activated.
  • Page 50 Starting the water heater Instruction manual CHA...

  • Page 51: Shutting Down

    Shutting down 10.1 Introduction Topics covered in this chapter: • Shut the appliance down for a brief period ('OFF' mode); • Isolating the appliance from the mains; • Shutting the appliance down for a long period. 10.2 Shut the appliance down for a brief period ('OFF' mode) To disable the device for a short period, you must switch on the frost protection using the appliance...
  • Page 52 Shutting down Instruction manual CHA...

  • Page 53: Errors

    Errors 11.1 Introduction This chapter covers the following errors: • Gas smell • Water leakage • Explosive ignition. • Poor flame profile. • Power Anode. • No hot water • Insufficient hot water 11.2 Error conditions If the water heater goes into an "error" condition, you will be unable to draw hot water.

  • Page 54: Cha Troubleshooting Table For General Errors

    11.3 CHA Troubleshooting table for general errors Warning Maintenance may only be performed by a qualified service and maintenance engineer. General faults and failures Feature Cause Measure Comment Gas smell Gas leak Warning Warning Close the main gas valve at once. Immediately contact your installation engineer or local gas company.

  • Page 55: Cha Troubleshooting Table - No Hot Water

    Feature Cause Measure Comment Power Anode If the error cannot be rectified, contact your installation engineer • Indicator lamp is • Anodes not making 3. Check to see that all connections have been made properly contact with the 4. Check that the Power Anode is properly connected; see water Electrical Diagram (14 "Electrical...
  • Page 56 No hot water Feature Cause Measure Comment Green LED OFF No supply voltage 1. Check whether the isolator is ON. See the electrical diagram (14 "Electrical diagram"). present If the error cannot be rectified, contact your installation engineer 2. Check whether there is power to the isolator Red LED OFF 3.
  • Page 57 Feature Cause Measure Comment Green LED ON There are three possible causes for this error. In order to determine the cause, you must If the error cannot be resolved or is persistent, contact your cause the error to appear again: installation engineer Red LED ON 1.

  • Page 58: Cha Troubleshooting Table - Insufficient Hot Water

    11.5 CHA Troubleshooting table - Insufficient hot water Warning Maintenance may only be performed by a qualified service and maintenance engineer. Insufficient hot water Feature Cause Measure Comment Insufficient hot water Water temperature Set the control thermostat (7.5 "Control thermostat") to a higher setting (T ) is too low...

  • Page 59: Performing Maintenance

    Performing maintenance 12.1 Introduction Note Maintenance may only be performed by a qualified service and maintenance engineer. At each service, the appliance undergoes maintenance on both the water side and the gas side. The maintenance must be carried out in the following order. Water-side maintenance Water-side maintenance Gas-side maintenance...
  • Page 60 Performing maintenance 12.3.2 Checking the anodes Timely replacement of the anodes extends the service life of the appliance. The appliance's anodes must be replaced as soon as they are 60% or more used up (take this into consideration when determining the maintenance frequency). 1.

  • Page 61: Gas-Side Maintenance

    3. Undo the bolts. 4. Remove the lid, the gasket and the O-ring. 5. Inspect the tank and remove the loose scale deposits and contamination. 6. If the scale cannot be removed by hand, descale the appliance with a descaling agent. Contact the supplier/manufacturer for advice on what descaling agent to use.

  • Page 62: Finalising Maintenance

    Performing maintenance 12.4.4 Checking the flue baffles Warning The flue baffles may be hot. 1. Carry out steps 1 through 7 of the anode (1 "Disconnect the plug of the flue gas thermostat from the connector on the appliance.") check. 1.

  • Page 63: Warranty (Certificate)

    Lochinvar Ltd, the enamel-lined steel tank proves to be leaking due to rust or corrosion occurring on the water side, then Lochinvar Ltd shall offer to replace the defective water heater with an entirely new water heater of...

  • Page 64: Exclusions

    A claim on grounds of the specified warranty must be submitted to the dealer from whom the water heater was purchased, or to another authorized dealer of Lochinvar Ltd. Inspection of the water heater as referred to in articles 1 and 2 shall take place in one of the laboratories of Lochinvar Ltd 13.6 Obligations of...

  • Page 65: Electrical Diagram

    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 CHA 700 LPG Instruction manual CHA...
  • Page 66 Electrical diagram 14.1.1 Electrical diagram for CHA 100 to 700 natural gas, CHA 100 to 600 230V AC 50Hz NO P NC 13 14 15 10 11 FUSE SUR- FACE L L" N H N 1 4 4 4 0305905 R0 1 = brown, 2 = blue, 3 = yellow/green, 4 = black, 5 = white Instruction manual CHA...
  • Page 67 TERMINAL STRIP CONNECTIONS: Earth Neutral Live Phase input of controller Phase input of thermal reflux safeguard Phase input of safety circuit for releasing temperature regulation Normal open PVC supply Normal closed COMPONENTS: Burner control Neutral Earth Phase input to controller L"...
  • Page 68 Electrical diagram 14.1.2 Electrical diagram for CHA 700 LPG 220-240V AC 50Hz NO P NC 13 14 15 M N O 10 11 FUSE SUR- FACE L L" N H N 1 4 4 4 A 18 16 0306159 R0 1 = brown, 2 = blue, 3 = yellow/green, 4 = black Instruction manual CHA...
  • Page 69 TERMINAL STRIP CONNECTIONS: Earth Neutral Live Phase input of controller Phase input of thermal reflux safeguard Phase input of safety circuit for releasing temperature regulation Normal open PVC supply Normal closed COMPONENTS: Burner control Neutral Earth Phase input to controller L"...
  • Page 70 Electrical diagram Instruction manual CHA...

  • Page 71: Declaration Of Conformity

    Declaration of Conformity EEC - Declaration of Conformity Supplier: Loc hinvar Limited 7 Lombard Way The MXL Centre Banbury - United Kingdom hereby declares that the following products: Produc t de scription: Commercial Gas Fired Storage Water Hea te r Produc t m ode ls: CHA 10 0, CH A 1 55, CHA 20 0, CH A 300, CHA 40 0, CH A 500 , CHA 60 0, CH A 7 00...
  • Page 72 Declaration of Conformity Instruction manual CHA...
  • Page 73 Index ambient conditions 16 liability 3 ambient temperature 16 mains power 27 burner pressure 29 maintenance burner 61 finalizing 62 gas-side 61 connecting the circulation pipe 23, 24 orifice 61 connecting the cold water side 22, 23 performing 59 connecting the hot water side 23 preparation 59 control thermostat 45 water-side 59...
  • Page 74 Index Instruction manual CHA 0310 569 1.0 UK...

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Cha 100 ce

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