Lochinvar EcoForce EF80 Installation, Commissioning, User And Maintenance Instructions
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Lochinvar EcoForce EF80 Installation, Commissioning, User And Maintenance Instructions

Lochinvar EcoForce EF80 Installation, Commissioning, User And Maintenance Instructions

Wall mounted gas fired condensing water heater
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MODELS:
EF80
EF100
EF120
EF150
EF180
February 2018
Installation manual_EF_
EcoForce™
Wall mounted gas fired condensing
water heater
Installation, Commissioning, User
and Maintenance Instructions
1

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Summary of Contents for Lochinvar EcoForce EF80

  • Page 1 EcoForce™ Wall mounted gas fired condensing water heater Installation, Commissioning, User and Maintenance Instructions MODELS: EF80 EF100 EF120 EF150 EF180 February 2018 Installation manual_EF_...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION ......................................................5 Regulations ......................................................... 5 SAFETY GUIDELINES ....................................................6 General Description Of Safety Symbols Used ..............................................6 What To Do If You Smell Gas .................................................... 7 TECHNICAL DATA ..................................................... 8 WATER QUALITY ..................................................... 13 ACCESSORIES AND UNPACKING ................................................ 13 Ancillary Items ........................................................
  • Page 4 Procedure For Initial Lighting ................................................... 87 General ..........................................................87 Firing For The First Time ....................................................87 ADJUSTING AND SETTING THE BURNER ............................................88 Introduction ........................................................88 Adjustment values ......................................................89 Setting screws gas valve(s): drawings ................................................93 Adjustments For New Water Heaters Or After A Service (Case A) ....................................... 94 Adjusting after gas valve replacement, or in case of gas conversion (case B) .....................................

  • Page 5: Introduction

    INTRODUCTION This manual has been written for:  The installer  System design engineers  Service engineers  End user READ AND UNDERSTAND THE INSTRUCTIONS Read and fully understand all instructions before attempting to operate maintain or install the unit. EGULATIONS It is the law in the UK that a competent person registered with the HSE approved body and in accordance with the Gas Safety regulations installs all Gas appliances.

  • Page 6: Safety Guidelines

    SAFETY GUIDELINES Keep these instructions near the Water heater for quick reference. This equipment must be installed by a competent person, registered with a H.S.E. approved body. All installations must conform to the relevant Gas Safety and Building Regulations. Health & Safety requirements must also be taken into account when installing any equipment.

  • Page 7: What To Do If You Smell Gas

    Do not re-enter the building until it is safe to do so Lochinvar Limited is not liable for any damage caused by inaccurately following these mounting instructions. Only original parts may be used when carrying out any repair or service work.

  • Page 8: Technical Data

    TECHNICAL DATA GENERAL DATA Product Identification Number CE 0063 BR3190 Classification II2H3P Gas Appliance Type B23, B23P, C13, C33, C43, C53, C63, C83 MODEL NUMBER EF80 EF100 EF120 EF150 EF180 Nominal Input (Net) (kW) 14.6 - 74.3 17.2 - 92.2 26.0 - 111 34.0 - 138 45.0 - 166...
  • Page 9 3.1.2 Dimensions EF80, 100 & 120 TWIN PIPE CONCENTRIC Twin Pipe Concentric Connections (mm/ ” ) EF80 EF100 EF120 EF80 EF100 EF120 Flue gas Ø80 Ø100 Ø80 Ø100 Air inlet Ø80 Ø100 Ø125 Ø150 Cold water R 1½” R 2” R 1½”...
  • Page 10 3.1.3 Dimensions EF150 &180 TWIN PIPE CONCENTRIC Top View Front View Twin Pipe Concentric Connections (mm/ ” ) EF 150 -180 EF 150 -180 Flue gas Ø130 Ø100 Air inlet Ø130 Ø150 Rp 2” Rp 2” Cold water inlet (swivel) (swivel) Rp 2”...
  • Page 11 3.1.4 Cascade frames Frames are available to mount up to 4 EcoForce water heaters if required.
  • Page 12 3.1.5 Dimensions cascade frames...

  • Page 13: Water Quality

    ACCESSORIES AND UNPACKING NCILLARY TEMS A number of accessories are available for use with the EF water heater depending on site requirements as below, contact Lochinvar Limited for prices and further information. Item Description Item Number 2 Water heater Mounting frame...

  • Page 14: Installation

    A suitable solid load bearing wall, which must be level. The wall used for mounting the Water heater must be able to hold the weight of the Water heater. If not, a suitable mounting frame is available from Lochinvar Limited See section 5.1 Other considerations related to the Water heater location.

  • Page 15: Condensate Drain

    The Water Resources Act requires that trade effluent is discharged to municipal sewers between pH 6.5 and 10.0. If it is determined that these levels cannot be achieved, an in-line condensate neutralisation kit is available as an ancillary option from Lochinvar Limited. This unit is capable of neutralising 4000 litres of condensate to a pH of 7.0 before releasing it to a drain.

  • Page 16: Gas Supply

    GAS SUPPLY The Lochinvar E ™ range is suitable for use on second and third family gasses 2H - G20 - 20mbar and 3P – G30 – 50mbar/G31 - ORCE 37mbar. Details relating to Natural Gas (2H) appear below; for details relating to Butane/Propane (3P) please refer to LPG FUEL.

  • Page 17: Flue System

    Before installation of any flue system read the installation manual carefully for both the appliance and flue system to be used. Information on the flue system Supplied by Lochinvar can be found within this manual. YSTEM...

  • Page 18: Flue Terminal Location

    ERMINAL OCATION 8.3.1 Flue terminal positions Location Description EF80 – EF180 Directly below an opening, air brick, opening windows etc. 2000 Above an opening, air brick, opening windows etc. Horizontally to an opening, air brick, opening windows etc. Below a gutter or sanitary pipework Below the eaves Below a balcony or car port roof From a vertical drain or soil pipe...

  • Page 19: Approved Flue System

    EF150 & EF180 Water heaters are supplied for connection to a twin pipe or conventional flue system. If concentric flue is to be used, a conversion kit will be required. When used as a Type C (Balanced Flued) appliance, the approved, purpose designed adaptive flue system from Lochinvar should be used. Concentric and twin-pipe options are available.

  • Page 20: C13, C33 Concentric Flue Systems

     CONCENTRIC WALL TERMINAL  WALL PLATES  90° BEND ADDITIONAL FLUE ITEMS ARE AVAILABLE SEE FLUE ASSEMBLY AND ANCILLARIES GUIDE AT WWW.LOCHINVAR.LTD.UK 8.6.1 horizontal concentric flue system components Model Description Flue Assembly Item number EF80 Horizontal Concentric flue kit 80/125mm...
  • Page 21 EACH VERTICAL CONCENTRIC FLUE ASSEMBLY IS SUPPLIED WITH THE FOLLOWING ITEMS:  CONCENTRIC VERTICAL TERMINAL Ø80/125MM PP  CONCENTRIC EXTENSION Ø80/125mm (500mm) PP CUT TO LENGTH ADDITIONAL FLUE ITEMS ARE AVAILABLE SEE FLUE ASSEMBLY AND ANCILLARIES GUIDE AT WWW.LOCHINVAR.LTD.UK 8.6.5 vertical concentric flue assembly Model Description Flue Assembly Item number...
  • Page 22 8.6.8 Vertical terminal roof flashings for synthetic, flat and tiled roofs 8.6.9 Installing terminal through roof flashing...
  • Page 23 8.6.10 General concentric flue system installation guidelines The images shown below may not represent the equipment supplied, images and instructions are for general guidance only...
  • Page 27 The maximum length of the flue system is determined by the resistance of the components within the flue. The resistance must not exceed 200 Pa. The information shown in table 8.6.12 is for the Lochinvar supplied flue system only; other flue system suppliers may have different values.

  • Page 28: C53 Twin Pipe Flue Systems

    FLUE GAS MATERIAL PP VARIOUS FLUE ITEMS ARE AVAILABLE SEE FLUE ASSEMBLY AND ANCILLARIES GUIDE AT WWW.LOCHINVAR.LTD.UK 8.7.1 twin pipe flue system components In order to install the EF Water heater in a Twin-pipe configuration models EF80-EF120 require a Twin-pipe conversion kit as below, further flue ancillary items are available to complete the installation.
  • Page 29 8.7.2 General twin-pipe installation guidelines The images shown below may not represent the equipment supplied, images and instructions are for general guidance only...

  • Page 34: B23 Conventional Flue Installations

    M81660 EF180 M81660 Due to the large Flue pipe size required Lochinvar does not supply conventional flue components for models EF150, EF180 except the air inlet guard. For this installation type a flue system designer/installer should be consulted. 8.8.2 Maximum length – conventional/twin-pipe flue...
  • Page 35 Resistance (Pa) Item Size (mm) EF 58 EF80 EF100 EF120 EF150 EF180 Straight tube (per metre) Straight tube (per metre) Straight tube (per metre) 45° Elbow 45° Elbow 45° Elbow 90° Elbow 90° Elbow 90° Elbow Vertical inlet cap 10.4 18.1 Vertical inlet cap 11.4...
  • Page 36 100mm flue pipe Item Quantity Resistance Total Straight tube (m) 52.0 45° Elbow 90° Elbow Concentric Vertical terminal 86.0 86.0 Total Resistance (Pa) Total Resistance 146<200 FLUE SYSTEM DESIGN HAS PASSED 8.8.6 Worked example – twin-pipe flue Flue Resistance Calculation Example EXAMPLE EF120 WATER HEATER FLUE EXHAUST 7000mm VERTICAL FLUE LENGTH...

  • Page 37: Flue Discharge

    ISCHARGE The flue system must ensure safe and efficient operation of the equipment to which it is attached, protect the combustion process from wind effects and disperse the products of combustion to open external air. The flue must terminate in a freely exposed position and be so situated as to prevent the products of combustion entering any opening in a building.

  • Page 38: Common Flue Systems

    Water heater to prevent products of combustion from re-entering the plant room. A cascaded common flue system which operates on a positive pressure is available from Lochinvar Limited. Further details can be found in the Cascade Flue Systems guide, available from www.lochinvar.Limited.uk.

  • Page 39: Air Supply

    AIR SUPPLY The following information is based on single Water heater installations only. If more than one Water heater is being used, BS6644 should be consulted to calculate the necessary requirements. OMBUSTION ENTILATION When used as a Type C appliance, ventilation for combustion is not necessary as the combustion air is ducted directly from outside. When used as a Type B appliance, the combustion air requirements are as follows: Plant Room Enclosure...
  • Page 40 9.3.2 Worked example – mechanical inlet/natural discharge Lochinvar EF100 Heat input (net): 92.0 kW Minimum combustion air flow rate: 92.0 x 2.6 m 239.2 m Ventilation grille size (high level): 184 cm 9.3.3 Worked example – mechanical inlet/mechanical discharge (minimum combustion air flow rate)

  • Page 41: Water Connections

    EcoForce water heater. Error! Reference source not found. gives general guidance on pipe header sizing based on small <14meter pipe runs, additional help w ith sizing the pipework header is available please contact Lochinvar Technical Support. NSTALLATION...
  • Page 42 10.1.2 ™ with 1 Lochinvar storage vessel-Un-vented installation ORCE These installation schematic drawings are given only as examples. If your installation is more complex or you require any help or clarifications please contact Lochinvar technical support. It is recommended that isolation valves are fitted to the cold-water inlet and hot water draw off connections to aid in any routine maintenance work that needs to be carried out.

  • Page 43: Open Vented System Arrangement

    The Building Regulations 1992: Part G3, in England and Wales,P5 in Northern Ireland and P3 in Scotland. A kit of components that have been suitably sized for the unvented operation of the appliance is available from Lochinvar Limited. For further information, contact Lochinvar Technical Support.

  • Page 44: Circulating Pumps

    Support before proceeding with the installation. TORAGE UFFER ESSELS EcoForce must be installed with a suitable buffer vessel(s) these are available as ancillary items from Lochinvar and are Glass lined models up to 2850litres. For more details go to www.lochinvar.ltd.uk...

  • Page 45: Minimum Pipe Header Sizing

    INIMUM IPE HEADER IZING The below pipe header sizes are recommended, these should be checked against the available head on the pump and the proposed pipework run. PIPEWORK A BLUE SIZE (mm) PIPEWORK B RED SIZE (mm) MODEL NUMBER OF FORCE EF80 EF100 EF120...

  • Page 46: Flow Monitoring

    FLOWRETURN DT FAULT. Upon resetting the water heater, the output will be limited to 50% in order to protect the heat exchanger. If this situation occurs, please contact Lochinvar Technical support immediately for further guidance. ATER...
  • Page 47 DO NOT USE Do not connect any cable to these connections TANK SENSOR This external flow sensor measures the flow temperature at the system side. The sensor must be mounted on the pipework close to the buffer vessel as shown in section Installation Schematic Drawings.

  • Page 48: Fuses

    SENSOR SENSOR TYPE SENSOR VALUE Internal flow sensor NTC-10K Internal return sensor NTC-10K Tank sensor NTC-10K Flue gas sensor NTC-10K 11.2.2 Senor values Temperature Resistance Temperature Resistance Temperature Resistance Temperature Resistance (°C) (Ω) (°C) (Ω) (°C) (Ω) (°C) (Ω) 175203 12488 1753 129289...

  • Page 49: Ecoforce Wiring Diagram

    COFORCE IRING IAGRAM internal connections ionisation and/or ignition siphon pressure switch (PSW) N.C. DISPLAY ref.1 clixon/maximum (S7) water thermostat 24vdc CN15 WIRING COLORS Fan Hall fan control Fan PWM K0=white K6=blue CN10 +24Vdc K1=yellow K7=red K2=brown K8=black PWM pump control K3=green K9=purple K4=grey...
  • Page 50 boiler casing ignition transformer incl. ionisation input. WIRING COLORS K0=white K6=blue K1=yellow K7=red K2=brown K8=black K3=green K9=purple K4=grey K10=yellow K5=orange CN11 CN do not use CN10 When using a RCW controller: Rewire terminal as shown so CN5 7/8 are bridged. n/Off Stat BURNER HEAT...

  • Page 51: Control Interface

    Note the BIC control system is used on both our water heaters (EF) and Boilers (CPM) some of the functions shown within the control pages relate to the Boiler version and will not be applicable to the EcoForce water heater. If in doubt contact Lochinvar Technical Support before proceeding with any Parameter changes.

  • Page 52: Control Panel Menu Structure

    ONTROL ANEL TRUCTURE BASE SCREEN : (appears during operation) WTRHTR : No demand / Standby / burning > > > : 1 1 8 ° C ( 1 2 5 ° C ) . press [ON/OFF] for ± three seconds to press: MENU programme in standby mode .
  • Page 53 HOW TO CONFIRM CHANGES When changes have been made in one of the nine menus below, the user presses ENTER to confirm these changes. To prevent anyone from making changes by mistake, the following happens when changes are made: Step 1: The user presses [ENTER] to confirm the change made or [MENU] to exit the menu without changes.

  • Page 54: Display During Operation

    ISPLAY URING PERATION During normal operation the text in the display shows the status of the water heater. The following graphs show the displays during normal operation with explanations. Display at WATER HEATER / HOT WATER DEMAND Heat demand type: Actual status: W A T H T R...

  • Page 55: Monitor Screens

    ONITOR CREENS During normal operation and stand-by, the “◄” and “►” buttons can be used to show some Water heater information, including measured temperatures, settings and data. The following explains which values can be shown in the display. When no button is activated for 2 minutes the display will return to its status display.

  • Page 56: Service Function

    DESCRIPTION "CASCINFO" Screen 11 Shows the number of water heaters connected with the cascade. The lead water heater is designated as 0. lag water heaters will be designated 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B. When a “-“ is used instead of a number, then that water heater is either not connected, or in a lockout mode and not available for the cascade.

  • Page 57: Schornsteinfeger Function (Germany Only)

    CHORNSTEINFEGER UNCTION ERMANY ROGRAMMING TANDBY Standby Use the standby mode for modifying water heater settings without interaction with the Water heater control. Changes are activated by leaving standby mode. Properties of standby mode:  Keys are active and the menu is accessible. ...

  • Page 58: Setpoints

    ETPOINTS The following show how to programme the hot water set points NOTICE: The max. actual DHW temperature will never exceed the Heating set point normal/day time: (parameter P4 AA = 1/2) value set at Heating Setpoint Regardless the set DHW D H W s e t p o i n t setpoint...

  • Page 59: Hot Water Programme

    ATER ROGRAMME > > > From previous page < < < Setting DHW program times: D H W M o n Press [►] to browse through the values that can be set at the bottom line. The blinking value can be changed. Press [▲] &...

  • Page 60: Pasteurisation Programme

    ASTEURISATION ROGRAMME Factory setting is off > > > From previous page with HOT WATER part < < < Setting legionella program (day and time): L e g o n e M o n Press [►] to browse through the values that can be set at the bottom line. The blinking value can be changed.

  • Page 61: Checking The Operating History

    HECKING PERATING ISTORY The following describe how to check the operating history of the water heater Operating screen: W A T R H T R : S T A N D - B Y > > > 1 2 3 .

  • Page 62: Checking The Fault History

    HECKING AULT ISTORY The following describe how to check the fault history of the water heater Operating screen: W A T R H T R : S T A N D - B Y > > > : 1 2 3 . 4 ° C ( 1 2 3 . 4 ° C ) Press [MENU] Select "Faulthist"...

  • Page 63: Setting The Maintenance Specifications

    ETTING AINTENANCE PECIFICATIONS The water heater can be programmed in such a way that an automatic maintenance message is displayed, there are three options that can be selected, you can either select a single option or all three can be activated: A programmed date is reached A number of burning hours are reached A number of ignition cycles are reached...
  • Page 64 From previous page Screen: Selecting message at certain date. M a i n t e n M o d e D a t e Press [►] to set: The date for the maintenance message. Press [◄] to: Return to maintenance mode selection. Press [►] to browse through the values that can be set at the bottom line.
  • Page 65 From previous page Screen: Message after total amount of burning hours. M a i n t e n M o d e B u r n i n g h o u r s Press [►] to set: The total amount of burning hours for the maintenance message. Press [◄] to: Return to maintenance mode selection.

  • Page 66: 12.16.1 Setting The User Lock

    ETTING The following graphs describe how to activate the user lock of the display. The standard factory setting for this function is “OFF”. The "USER LOCK" menu. In this menu the water heater can be locked for (end-)users. 0 = UNLOCKED 1 = LOCKED When the water heater is unlocked, the user can enter the MENU by pressing the menu button and all screens...

  • Page 67: Setting The Parameters With The Display Menu

    ETTING ARAMETERS ISPLAY The following table gives a list of parameters that can be programmed by the display. All parameters that are shown in the display can be changed. NOTICE: Only the password for level 1 is issued in this manual. When other “more advanced” parameters need to be programmed, it can only be done by a skilled and trained service engineer, who has access to level 2.
  • Page 68 CPM Boilers. Certain functions may not apply to the appliance you are Select "Parameter" using [◄] & [►] and press [ENTER] working on. If there is any doubt contact Lochinvar Limited. Parameter menu: n s t 0 0 0 Enter the 4-digit code with the [◄] &...
  • Page 69 EACH Water heater of the total cascade. not apply to the appliance you are working Menu A: Heating on. If there is any doubt contact Lochinvar Limited. ° C Select the cascaded water heaters supply temperature control.
  • Page 70 Water heater switches to the appliance you are working on. If there is any from LOW to HIGH set point with an indirect hot water doubt contact Lochinvar Limited. demand. Menu B: Hot water...
  • Page 71 HW temperature of the Water heater. also our CPM Boilers. Certain functions may not apply to the appliance you are working Menu B: Hot water on. If there is any doubt contact Lochinvar D H d s c l n t 2 3 Limited.
  • Page 72 CPM Boilers. Certain functions may Master = 0, Slave 1 = 1 etc. not apply to the appliance you are working on. If there is any doubt contact Lochinvar Menu C: Cascade Limited. c a s / m a s Function for the cascading of the Water heater(s).
  • Page 73 1 = Control based on temperature setting functions may not apply to the appliance you are working on. If there is any doubt 2 = Control based on power setting contact Lochinvar Limited. Menu D: General 0 M i n T m p °...
  • Page 74 2 = switch functions may not apply to the appliance you are working on. If there is any doubt Menu D: General contact Lochinvar Limited. g a s t y p e Function to select the gas type 0 = standard...

  • Page 75: Fault Code Display

    FAULT CODE DISPLAY The following graphs describe the lock out codes of the water heater. A lock out code can only be removed by a manual reset of the water heater. NOTICE: Before resetting the water heater always check the water heater, DHW system and all components corresponding to the related lock out description.
  • Page 76 a m e Display message u m p Reason Flame detected during normal operation, but was lost while running. Display message a m e u m p Reason Flame signal is detected when it cannot be expected. Display message u m p Reason The controller does not detect a correct fan speed.

  • Page 77: Blocking Codes

    The following graphs describe the blocking codes of the water heater. A blocking code is only a temporary blocking of the water heater, because of an extraordinary situation. The water heater will continue to operate after stabilisation of this situation. LOCKING ODES The display is not blinking, but is lightened up during the blocking period.

  • Page 78: Messages

    Display message Reason The general blocking circuit is activated during operation = contact 7-8 Display message > > > ° ° Reason T3 external tank sensor is not connected to the terminals Display message Reason Setpoint return (tank) temperature DHW (S3) is higher than Setpoint heating = flow temperature (S1) ESSAGES The following graphs describe the messages at the water heater display.

  • Page 79: Control Options And Settings

    CONTROL OPTIONS AND SETTINGS ATER EATER PTIONS 0-10V DC remote flow temperature set point The hot water temperature is controlled by connecting an external 0-10V DC signal to the water heater (connections 15-16). P5BB Analogue input Config (0=off 1=temp) (display D1). This parameter must be set at "1"...

  • Page 80: Anti-Legionella (Pasteurisation) Function

    EGIONELLA ASTEURISATION UNCTION To prevent Legionnaires’ disease, the water heater (software) provides a function for heating up the hot water storage tank (once a week or every day) to a higher water temperature than the normal active hot water set point. Also the period, that this “higher” water temperature function must be active, can be programmed in P7BV start time (0:00) and P7BW (8) and is standard switched off.

  • Page 81: Cascade Control

    For programming all parameters of the water heaters, an interface cable for connecting the laptop to the water heater control and a laptop with the appropriate software is required. Contact Lochinvar Technical support for further details. This software is used for programming but also shows all measured temperatures and cascade behaviour during operation and service/fault history.
  • Page 82 PARAMETERS PARAMETERS PARAMETERS PARAMETERS water water water water heater heater heater heater master slave 1 slave 2 slave 3 CASCADE CONNECTION Now for every single water heater of the cascade the following two parameters must be selected and programmed according to the above drawing.

  • Page 83: General

    GENERAL The following sections describe some general functions of the water heater and their possible use. AXIMUM OOLING The fan will cool down the heat exchanger according to the temperature settings (parameters) of the software. With this cooling parameter the maximum run time of the fan can be programmed.

  • Page 84: Soft Start Options

    TART PTIONS Start parameters can be modified to achieve better starting behaviour, in case of noise or other difficulties. This is done by reducing the fan ramp-up speed. Two reduced settings are available (I and II). P4BE Soft start (0=normal, 1=reduced ramp-up speed...

  • Page 85: Checking Water Flow Through The Water Heater

    HECKING ATER HROUGH ATER EATER Before the water heater is first started, be sure that the pump is functioning and that there is water flow over the heat exchanger. Check the electrical power supply of the water heater. When this is connected correctly, the display will show: Display message Reason Water heater is not active.

  • Page 86: Electrical Installation

    When these messages appear and/or the water heater will lock out, it means that there is not enough flow over the water heater. In this case check the pump is operating correctly. The water heater has a built in water pressure switch. If water pressure of the system drops under a certain limit, the water heater will go in a lock-out.

  • Page 87: Procedure For Initial Lighting

    ROCEDURE NITIAL IGHTING If the unit is to operate on LPG refer to section LPG fuel before proceeding ENERAL Check the gas pressure available at the gas connection pipe of the water heater. Use the pressure nipple (3) of the gas safety valve for this measurement.

  • Page 88: Adjusting And Setting The Burner

    ADJUSTING AND SETTING THE BURNER Before carrying out any adjustments to the burner, carefully read this complete chapter. NTRODUCTION The burner must always be adjusted when: - A new water heater is installed - As part of a service/maintenance check, in case the CO values turn out to be incorrect Adjustment procedures for the above can be found in 21.4.

  • Page 89: Adjustment Values

    DJUSTMENT VALUES To make adjustments easier, values of table 1 are presented in the following figures. The CO values should always be between the values set in this figure. Nominal values can be found in the Technical specifications datasheet at the beginning of this manual. All values are measured without front door. 21.2.1 Gas type G20 The CO...
  • Page 90 Propane G31: >>> cont. The CO level must not be in the hatched area. adjust 4,7 % 10,6 % max load O.K. 5,0 % 10,4 % EF150 adjust adjust 6,7 % 9,3 % min load O.K. 7,0 % 9,1 % adjust ____________________________________________________________________________ adjust...
  • Page 91 21.2.3 B/P: propane/ butane mixture G30/ G31: Fan settings must be changed by altering parameter P4BD (display D8). (Only by a Competent Engineer). The CO level must not be in the hatched area. adjust 5,1 % 10,6 % max load O.K.
  • Page 92 adjust 4,8 % 10,8 % max load O.K. 5,1 % 10,6 % adjust EF180 adjust 7,0 % 9,3 % min load O.K. 7,3 % 9,1 % adjust pre adjustment settings gas valve for BIC water heaters Number of turns open (counter clockwise) Water heater Type Nat.

  • Page 93: Setting Screws Gas Valve(S): Drawings

    ETTING SCREWS GAS VALVE DRAWINGS NOTICE: Do NOT mistake the screw marked ‘PILOT’ for screw 2.  Screw 2 is the SMALL screw immediately next to the pilot screw. 150 & 180 80 & 100 21.3.1 Adjustments to the gas valve General scheme for adjustment of gas valve(s).

  • Page 94: Adjustments For New Water Heaters Or After A Service (Case A)

    DJUSTMENTS ATER EATERS FTER ERVICE General remark For all adjusting steps under A the following must be applied: as long as measured CO values differ less than 0.3% from the table values, no adjustment is necessary, because this deviation is typical for the process (O values: ±...

  • Page 95: Checking And Adjusting At Minimum Load Ef120 / Ef150 / Ef180

    This pressure should be in the same range of pressure as the left valve, so in accordance with 21.2.5 again. If, after all setting steps have been carried out properly, the values of left and right “p-out “are still very different, contact Lochinvar Technical support.

  • Page 96: Adjustment Procedures

    DJUSTMENT ROCEDURES Procedures 1 and 2, referred to in the previous sections, are described here: 21.8.1 Procedure 1: adjust at maximum load In case B (gas conversion or replacement of gas valve): consult § 0. Before starting procedure 1 below. Carry out the next 4 steps: Press [SERVICE] button for about 3 seconds.

  • Page 97: Putting The Water Heater Out Of Operation

    PUTTING THE WATER HEATER OUT OF OPERATION It is recommended to have the water heater operational all year round to prevent any frost damage during the winter and/or rotating parts getting jammed during other times of the year (built in water heater safety features). PERATION UNCTION To be used when the appliance is to be put out of operation for a long period.

  • Page 98: Fault Codes, Blocking Codes

    FAULT CODES, BLOCKING CODES To avoid electric shocks, disconnect electrical supply before performing troubleshooting. To avoid burns, allow the unit to cool before performing troubleshooting. Be aware that a fault code is an indication that the unit or the system needs attention. When repeatedly having faults these should not be neglected.
  • Page 99 T e m p Display message p u m p Reason: Maximum return temperature exceeds limit value. Cause: System that pre-heats the water heater return temperature too much/high. Corrective action: Reduce pre heat temperature of external heat source. Cause: The need for heat in the system suddenly drops causing hot return water to the water heater. Corrective action: Dampen external heating system control to prevent sudden water heater temperature rise.
  • Page 100 e m p Display message p u m p Reason Flue gas temp. exceeded 3 times limitation value within a certain period. Cause: Heat exchanger polluted and not able to transfer enough heat to system water. Corrective action: Check and clean heat exchanger. Cause: Bad flue gas sensor or sensor connection (partly shorted).
  • Page 101 Display message p u m p Reason Water heater not operational after 4 starting attempts. Cause: No spark. Corrective action: Check the igniter/ignition electrode and replace/clean it if necessary. Check the state of the ceramic insulator. A small crack can prevent the spark to form at the end of the electrode. Check the distance between the electrode pin, earth pin and burner.
  • Page 102 a m e Display message p u m p Reason Flame signal lost during operation. Cause: Bad gas supply pressure. Corrective action: Be aware that the specified gas pressure must be met during all operation conditions. Check if all gas valves in the supply line are completely open. Check if the dirt filters mesh in the gas valve inlet is clean.
  • Page 103 a m e g n a Display message p u m p Reason Flame signal detected, while water heater should not fire for operation. Cause: The flame detection circuit detects a flame which is not supposed to be present. Corrective action: Check the ignition/ionisation electrode and make sure it is clean (or replace it).
  • Page 104 Display message x o n F a u p u m p Reason: Heat exchanger fuse exceeded maximum value. Cause: The thermal fuse of the heat exchanger has opened permanently. Corrective action: Switch off the electrical power and gas supply and contact supplier. Display message o w R e p u m p...
  • Page 105 p h o n Display message p u m p Reason: Siphon pressure switch detects high pressure in the flue/siphon system. Cause: There is too much resistance in the flue gas circuit causing high pressure in the heat exchanger at the flue gas side.
  • Page 106 23.1.2 Blocking codes The display is not blinking, but is light up during the blocking period. The water heater is blocking an action, because of an extraordinary situation. This action will be continued after eliminating the extraordinary situation. Display message e m p Reason: Flow temperature has exceeded the blocking temperature, but it has not exceeded...
  • Page 107 Cause: There is no water in the unit while firing. Corrective action: This is an unlikely situation while all the safeties for checking the water presence didn't detect anything. Only a lot of air in the system/unit (under pressure) can cause the water pressure switch to switch while no water is present.
  • Page 108 Display message Reason Water pressure is too low or high. Cause: The water pressure in the system is too high. Corrective action: Check if the system pressure is too high after (re)filling. Make sure that there is a pressure relief valve and expansion vessel installed in the system, according to the applicable standards.
  • Page 109 Display message a d e Reason Connection failure with one of the water heaters of the cascade. Cause: The unit is programmed in such a way that none of the water heaters in a cascade will fire, if one has a lockout. One unit has a lockout and therefore the whole cascade is blocked.
  • Page 110 23.1.3 Maintenance attention function The display shows alternately the base screen and this message, while backlight is blinking. The water heater is operating, but will count the exceeding hours. A parameter must be changed, after service, to remove this message. Display message e d s e n a n...

  • Page 111: Lpg Fuel

    LPG FUEL It is strongly recommended that, on LPG installations, gas detection equipment is fitted. This equipment should be positioned near the appliance and at low level. It is also important that the space housing the appliance is adequately ventilated at high and low level. This appliance must not be located below ground e.g. in a cellar ELATED OCUMENTS In addition to those documents listed in Section 4.1: RELATED DOCUMENTS within the main body of the installer’s guide the gas installation...
  • Page 112 11. Adjust screw 1 to give a CO output of 9.5% (± 0.3%). Turning the screw clockwise will increase the CO level, turning anti-clockwise will reduce the CO level. On the EF150 and EF180, this adjustment should be made to the right hand gas valve only. 12.

  • Page 113: Maintenance

    MAINTENANCE ENERAL Gas appliances should be checked at Maximum intervals of no more than 12 months, this will ensure the safe and reliable operation of the water heater for many years to come. Maintenance and inspection of the water heater should be carried out at the following occasions: ...

  • Page 114: Inspection And Maintenance

    NSPECTION AINTENANCE Inspection, maintenance and the replacement of water heater parts should only be done by a skilled service engineer. Apart from the maintenance proceedings it is advised to have a log chart for every water heater that describes the following aspects: ...
  • Page 115 3.5 mm / 0.14 inch D = 8 - 10 mm D = 0.315 - 0.393 inch Point of view in next picture  25.5.8 Burner door gaskets When these gaskets have changed colours at some parts, the rubber has cured and/or has damages, these gaskets must be replaced. Notice: only use the gaskets that are supplied by the water heater manufacturer.

  • Page 116: Mounting The Burner Door Correctly Back Onto The Heat Exchanger

    25.5.13 Gas/air ratio With every service check and/or maintenance of the water heater always check the gas/air ratio by measuring the CO percentage (flue gas) at the maximum and minimum load of the water heater. If necessary adjust these values, see for information chapter Error! Reference source n ot found.

  • Page 117: Temperature Adjustment Procedure

    Put the water heater into ‘Service Mode’. This is done by depressing the small switch located below the communication interface port. Turn the set point dial fully clockwise, this should ramp the fan up to its maximum speed. Adjust screw 2 to give a CO output of 8.8% (±...

  • Page 118: Refilling The System

    Check all flue system connections for leakage and reseal as required. Check that ventilation grilles comply with current regulations. ERP SPECIFICATION DATA SHEET Water Heater Type: EF80 EF100 EF120 EF150 EF180 Manufacturer Lochinvar Limited Load Profile 86.0% 86.3% 85.9% 89.0% 88.6% Energy Efficiency 27.9 27.82 27.97...

This manual is also suitable for:

Ecoforce ef100Ecoforce ef120Ecoforce ef150Ecoforce ef180

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