Lochinvar ECOKNIGHT EKW116CE Installation, Commissioning, Maintenance And User Instructions
Floor standing gas fired condensing circulating type water heater
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- Page 1 ECOKNIGHT™ FLOOR STANDING GAS FIRED CONDENSING CIRCULATING TYPE WATER HEATER Installation, Commissioning, Maintenance and User instructions Models EKW116CE EKW146CE EKW176CE EKW206CE EKW236CE...
- Page 2 Article Language Version EcoKnight condensing water heater models 116-236 ICM English October 2022...
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Page 3: Table Of Contents
Table of Contents INTRODUCTION ............................................5 SAFETY GUIDELINES..........................................6 GENERAL DESCRIPTION OF SAFETY SYMBOLS USED ..............................6 WHAT TO DO IF YOU SMELL GAS ....................................7 PRINCIPAL PARTS ..........................................8 TECHNICAL DATA ..........................................11 DIMENSIONS AND CLEARANCE ......................................13 DIMENSIONAL DRAWINGS ......................................13 CLEARANCES.......................................... - Page 4 WATER CONNECTIONS ........................................ 70 COMMISSIONING THE EQUIPMENT ..................................... 70 TEMPERATURE ADJUSTMENT PROCEDURE ................................71 LEGIONELLA PREVENTION ......................................72 PASTEURISATION ......................................... 72 PASTEURISATION USING THE NIGHT SET BACK FACILITY ............................72 INSTALLATION NOISE ........................................72 18.0 LPG FUEL ............................................. 73 RELATED DOCUMENTS ........................................ 73 CONVERSION TO LPG ........................................
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Page 5: Introduction
INTRODUCTION The Lochinvar EcoKnight™ range is a floor standing direct gas fired circulating type condensing water heater. The equipment comprises of stainless steel radial burner assembly and heat exchanger that permits fully condensing operation. EcoKnight™ water heaters must be used in conjunction with an appropriately sized LST direct storage vessel (available from Lochinvar Limited as an ancillary option) ... -
Page 6: Safety Guidelines
SAFETY GUIDELINES READ AND UNDERSTAND THE INSTRUCTIONS Read and fully understand all instructions before attempting to operate maintain or install the unit. Keep these instructions near the water heater for quick reference. This equipment must be installed by a competent person, registered with the H.S.E. approved body. All installations must conform to the relevant Gas Safety and Building Regulations. -
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 installation instructions. Only original parts may be used when carrying out any repair or service work. -
Page 8: Principal Parts
PRINCIPAL PARTS ITEM DESCRIPTION FUNCTION Stainless steel heat exchanger Allows water to flow through specially designed coils for maximum heat transfer, while providing protection again Heat exchanger access cover Allows access to the combustion side of the heat exchanger coils. The fan pulls in air and gas through the venturi (item 5). - Page 9 3.1.2 PRINCIPLE PARTS SHOWN, TO BE USED WITH 3.1.1 REAR VIEW EKW116CE LEFT SIDE VIEW EKW116CE REAR VIEW EKW146CE RIGHT SIDE VIEW EKW146CE...
- Page 10 REAR VIEW EKW176CE-EKW236CE SIDE VIEW EKW176CE-EKW236CE...
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Page 11: Technical Data
TECHNICAL DATA Model Number EKW116CE EKW146CE EKW176CE EKW206CE EKW236CE GENERAL DATA Product I.D. Number CE 0063CQ3351 Classification 2H3B/P Input (gross) – kW 116.9 146.5 175.8 205.2 234.5 Input (net) – kW 105.3 158.4 184.9 211.3 Output (P Min-P Max) 22.1 - 110.6 28.2 - 141.2 32.4 - 162.1 37.5 - 187.4... - Page 12 Recovery Rate (50° ΔT) l/hr 1904 2436 2905 3401 3819 Heat generator seasonal efficiency 94.6 96.4 92.2 91.3 Shipping Weight NOX @ 0% o2 According to EU regulation 812/2013 mg/kw 32.5 NOX Class According to EU regulation EN15502 Maximum allowable temperature of the combustion air °C GAS DATA - G20 Nominal gas inlet pressure...
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Page 13: Dimensions And Clearance
Water content – litres litres 12.9 15.9 15.9 18.9 21.6 Water connections (F & R) “ BSP DIMENSIONS AND CLEARANCE DIMENSIONAL DRAWINGS Note full dimensional drawings showing connection sizes and positions are available from Lochinvar Technical Support 5.1.1 IMENSIONAL DRAWING... - Page 14 Model EKW116CE EKW146CE EKW176CE EKW206CE EKW236CE Dimension Unit 1080 1080 1080 1080 1080 1022 1149 1059 1153 1153 5.1.2 DIMENSIONS TABLE...
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Page 15: Clearances
CLEARANCES 5.2.1 ENCLOSURE INSTALLATION CLEARANCES ( 5.2.2 PLANT-ROOM INSTALLATION CLEARANCES (... -
Page 16: General Requirements
GENERAL REQUIREMENTS The Lochinvar EcoKnight™ condensing water heater has been designed to operate trouble free for many years. These instructions should be followed closely to obtain the maximum usage and efficiency of the equipment. READ AND UNDERSTAND THE INSTRUCTIONS Read and fully understand all instructions before attempting to operate maintain or install the unit. -
Page 17: Water Quality
Circulating Pumps, Flow Rates and Pipework headers LOCATION PLANT ROOM REQUIREMENTS The Lochinvar EcoKnight™ may only be installed in a room that complies with the appropriate ventilation requirements. The Lochinvar EcoKnight™ can be used as a type C or C (room sealed) appliance. -
Page 18: Clearances
GAS SUPPLY The Lochinvar EcoKnight™ range is suitable for use on second and third family gasses 2H - G20 - 20mbar and 3P - G31 - 37mbar. Details relating to Natural Gas (2H) appear below; for details relating to Propane (3P) please refer to Section 18.0: LPG FUEL. -
Page 19: 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. -
Page 20: Flue System Technical Details And Maximum Flue Length
FLUE SYSTEM TECHNICAL DETAILS AND MAXIMUM FLUE LENGTH Model Number EKW116CE EKW146CE EKW176CE EKW206CE EKW236CE FLUE DATA TYPE B Nominal flue diameter Maximum flue gas temp °C Maximum equivalent length Equivalent length 90 bend 1000 1500 Equivalent length 45 bend Flue gas temperature °C Flue draught requirements... -
Page 21: Flue Discharge
Minimum flue gas temp °C Average flue gas temp (80/60 Flow/Return) °C Maximum flue gas temp °C Nominal Flue gas mass rate (@ 10.5% CO2) g/sec 42.5 53.2 63.9 74.6 85.2 10.2.1 FLUE SYSTEM TECHNICAL DATA TABLE ‡ EKW146CE, EKW176CE, EKW206CE and EKW236CE use a Twin pipe (Parallel) flue system terminating at a concentric terminal. -
Page 22: Approved Flue System
FLUE TERMINAL MINIMUM DISTANCES APPROVED FLUE SYSTEM For Concentric and Twin pipe flue systems only the Lochinvar supplied M&G flue system must be used The approved flue system is not suitable for use external to the building. If external routes cannot be avoided, a flue system manufacturer should be consulted to supply a suitable alternative. -
Page 23: Room Sealed (Type C) Flue Assembly
Additional wall brackets may be required to ensure the flue system is stable. For a full list of flue components supplied and optional parts to complete the system see the EcoKnight™ flue guide available at www.Lochinvar.ltd.uk ITEM NUMBER DESCRIPTION EKW/EKW 86 EKW/EKW 116 90⁰... - Page 24 To install the flue connection to the EKW116CE Water Heaters the following procedure should be followed: Check you have all items shown in Section 10.8.1 Check the flue temperature sensor (supplied with the Water Heater) is securely located into the hole on the exhaust transition.
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Page 25: Installation Of Flue Connection Kit To Ekw146Ce-Ekw176Ce
Additional wall brackets may be required to ensure the flue system is stable. For a full list of flue components supplied and optional parts to complete the system see the EcoKnight™ flue guide available at www.Lochinvar.ltd.uk ITEM NUMBER DESCRIPTION EKW/EKW 146... - Page 26 To install the flue connection to the EKW146CE-EKW176CE Water Heater the following procedure should be followed: Check you have all items shown in Section 10.9.1 Check the flue temperature sensor (supplied with the Water Heater) is securely located into the hole on the exhaust transition.
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Page 27: Installation Of Flue Connection Kit To Ekw206Ce - Ekw236Ce
Additional wall brackets may be required to ensure the flue system is stable. For a full list of flue components supplied and optional parts to complete the system see the EcoKnight™ flue guide available at www.Lochinvar.ltd.uk ITEM NUMBER DESCRIPTION EKW/EKW 206... - Page 28 To install the flue connection to the EKW206CE – EKW236CE Water Heaters the following procedure should be followed: Check you have all items shown above. Check the flue temperature sensor (supplied with the Water Heater) is securely located into the hole on the exhaust transition.
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Page 29: C13 Concentric Horizontal Flue Systems
C13 CONCENTRIC HORIZONTAL FLUE SYSTEMS Flue system specifications MANUFACTURER MUELINK AND GROL (M&G) TEMPERATURE CLASS T120 FLUE GAS MATERIAL PP Each concentric horizontal flue kit includes the items shown in the tables below Item No EKWHF002 CONCENTRIC HORIZONTAL FLUE ASSEMBLY MODELS EKW116CE COMPONENTS INCLUDED Number... -
Page 30: Horizontal Flue Terminal Installation
Item No EKWHF004 CONCENTRIC HORIZONTAL FLUE ASSEMBLY Twin-pipe system with a concentric terminal MODELS EKW206CE,EKW236CE COMPONENTS INCLUDED Item No. Description Number Quantity AIR INLET TRANSITION Ø150mm ALU M87039 LV310665 BEND 90° Ø150mm PP SAMPLING POINT Ø150mm PP M70326 EXTENSION Ø150mm(1000mm) PP CUT TO LENGTH LV310694 M76561 HORIZONTAL TERMINAL Ø150/220mm ALU... -
Page 31: Flue Terminal Guarding
When inserting the terminal, ensure the air intake section is at the bottom. Fill the void between the terminal and wall with water resistant sealant. Fit the wall plates or rosette using appropriate fixings. Install the remainder of the flue system working progressively away from the Water Heater supporting the pipes as necessary. - Page 32 Item No EKWVF003 CONCENTRIC VERTICAL FLUE ASSEMBLY Twin-pipe system with a concentric terminal MODELS EKW146CE,EKW176CE COMPONENTS INCLUDED Item No. Description Number Quantity M85181 BEND 90° 100mm PP M85126 EXPANDER Ø100mm - Ø130mm PP M70262 EXPANDER Ø130mm - Ø150mm PP M70326 SAMPLING POINT Ø150mm PP M87039 AIR INLET TRANSITION Ø150mm ALU...
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Page 33: Vertical Flue Terminal Installation
VERTICAL FLUE TERMINAL INSTALLATION If using a C33 flue system with separate Vertical air inlet and Vertical combustion outlet the air inlet and combustion outlet must fit inside a square of 1000mmm and have a maximum distance between the two orifices of 1000mm When the water heater is installed as a Type C appliance, the flue system should be installed as follows:... -
Page 34: Room Sealed (Type C) Flue Assembly
ROOM SEALED (TYPE C) FLUE ASSEMBLY 10.16.1 GENERAL CONCENTRIC FLUE SYSTEM INSTALLATION GUIDELINES The information in this section is for General guidance only and may not fully represent the installation on site Do not drill and screw into flue system... - Page 35 Max distance between brackets...
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Page 38: Type C 43 Common Vented Flue Systems In Multi Floor Buildings
TYPE C COMMON VENTED FLUE SYSTEMS IN MULTI FLOOR BUILDINGS This appliance can operate on a U-Duct common flue system. The maximum lengths for the interconnecting flue can be found in Section 10.2. Only use a C43 venting system when the common duct is a natural draught chimney. The common duct is part of the building, not a part of the system. - Page 39 When installing the EcoKnight™ on a C twin pipe flue system, the Lochinvar Twin pipe flue starter assembly must be fitted first including the flue temperature sensor. If the flue temperature sensor is not fitted, the flue gas temperature may exceed the maximum temperature rating of the flue and can lead to severe personal injury, death or substantial property damage.
- Page 40 10.18.3 GENERAL TWIN-PIPE INSTALLATION GUIDELINES The information in section 10.17.1 is for General guidance only and may not fully represent the installation on site...
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Page 43: Type B (Conventional Flue With Fan Assistance)
AIR INLET TRANSITION Ø100mm ALU M86787 APPLIANCE AIR INLET GUARD Ø100mm M70326 SAMPLING POINT Ø150mm PP A kit of components to facilitate conventional flueing of the appliance is available from Lochinvar Limited and must be fitted prior to fitting any other flue components. - Page 44 10.19.1 TYPICAL CONVENTIONAL FLUE ARRANGEMENT Insert the exhaust transition into the exhaust port of the water heater Insert the flue temperature sensor into the location hole on the exhaust transition If the flue temperature sensor is not fitted, the flue gas may exceed the maximum temperature rating of the flue and can lead to severe personal injury, death or substantial property damage.
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Page 45: C63 Certified Flue Systems
C63 CERTIFIED FLUE SYSTEMS In general, Water heaters are certified with their own purpose supplied Concentric or Twin Pipe flue systems, C certified appliances allow the installer to use other flue systems when installing the Water heater however, they must be of a suitable minimum standard as per Table below. -
Page 46: Air Supply
12.0 AIR SUPPLY The following information is based on single water heater installations only. If more than one water heater is being used, BS5440-2 or BS6644 (as appropriate) should be consulted to calculate the necessary requirements. COMBUSTION VENTILATION When used as a Type C (room sealed) appliance, provided sufficient clearance is provided, ventilation for combustion is not necessary as the combustion air is ducted directly from outside. -
Page 47: Water Connections
The requirements of minimum water flow are given in Table 12.5.1. Recommendations for the water circulation system are given in BS6644 and CP 342. The following notes are of particular importance. EcoKnight™ must be used with a direct type storage vessel (LST). Contact Lochinvar Limited for help in sizing the storage vessel. -
Page 48: Open Vented System Arrangement
UN-VENTED SYSTEM ARRANGEMENT If the Lochinvar EcoKnight™ is to be used in an unvented arrangement, the system should follow the guidance given in BS6700 and must comply with The Building Regulations: 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 or boosted operation of the appliance is available from Lochinvar Limited. -
Page 49: Stratification
In order to ensure the correct flow rates through the water heater, the unit requires a bronze glanded pump sized to overcome the resistance of the heat exchanger and a primary pipework loop. Lochinvar will supply a suitable bronze glanded shunt pump with each water heater as shown in Section 12.5.1. -
Page 50: Primary Pipework Header Sizing
If your installation is outside the scope of this guidance, please contact Lochinvar Technical support before proceeding with the installation. The tables below show the pipework header sizing required in order to ensure the correct flow rate is maintained between the EcoKnight™... -
Page 51: Control Options/Installation
Lochinvar Ltd reserves the right to change specifications without prior notice. All necessary additional valves and fittings to be determined by those other than Lochinvar Ltd. Lochinvar Ltd may provide technical advice and guidance to assist with best practice, optimisation and installation of Lochinvar products;... -
Page 52: Vessel Temperature Sensor Multiple Water Heater Installation
Lochinvar limited may provide technical advice and guidance to assist with best practice, optimisation and installation of Lochinvar products; however, we will not be liable for any duties as designers under construction (design and management regulations 2015). In all cases where information is provided, the customer must assess and manage risks associated with the technical information and advice provided. -
Page 53: Standalone Installation, Single Water Heater
STANDALONE INSTALLATION, SINGLE WATER HEATER The installation shown below features an EcoKnight™ water heater working on its own sensors only, the supplied tank sensor is installed within the sensor point on the LST direct storage vessel. This arrangement gives close temperature control and is particularly suitable for installations with a constant low level demand such as leisure centres. -
Page 54: Bms Installation, Single Water Heater
BMS INSTALLATION, SINGLE WATER HEATER The installation shown below features an EcoKnight™ water heater with BMS control, the BMS can send an on/off signal as required depending upon the temperature within the storage vessel. This will be monitored by a BMS sensor shutting the EcoKnight™ water heater down when the vessel is at set point. -
Page 55: Installation, Two Water Heaters With Single Vessel - Alternate Lead With Strap-On Sensor
INSTALLATION, TWO WATER HEATERS WITH SINGLE VESSEL – ALTERNATE LEAD WITH STRAP-ON SENSOR The installation shown below features two EcoKnight™ water heaters working with a single tank sensor. The water heaters would be put into cascade - the supplied tank sensor is installed within the sensor point on the LST direct storage vessel and connected back to the lead water heater. -
Page 56: Multiple Water Heaters With Single Vessel
MULTIPLE WATER HEATERS WITH SINGLE VESSEL When multiple EcoKnight™ water heaters are installed as shown below one water heater is designated as the leader water heater. The leader will decide how many member water heaters to activate and at what firing rate depending upon information received from the tank sensor. -
Page 57: Multiple Water Heaters With Multiple Lst Direct Storage Vessels
MULTIPLE WATER HEATERS WITH MULTIPLE LST DIRECT STORAGE VESSELS Sometimes it may be necessary to install multiple LST direct storage vessels, for example to reduce the kW required meeting the demand or if a single larger vessel will not fit within the plant room. The vessels should be installed as shown below utilising a reverse return pipework arrangement to ensure an even temperature distribution between the vessels. -
Page 58: Electrical Supply
Auxiliary safety system proving switch (e.g. fan dilution system proving switch) Lochinvar have developed the EcoKnight water heater to operate at its most efficient when using the internal sensors and cascade control, if it is the intention to use a BMS to control the EcoKnight water... -
Page 59: Building Management System (Bms)
If there is a requirement to turn the water heater 0n/off via a BMS then this scheme must be approved by Lochinvar prior to installation. The BMS can turn the water heater on/off but must not be used to activate the associated shunt pump that must be controlled by the water heater to allow a suitable pump overrun. -
Page 60: High Voltage Connector Strip
HIGH VOLTAGE CONNECTOR STRIP 16.4.1 HIGH VOLTAGE CONNECTION STRIP The output across each relay must not exceed 25Amps OUTPUT CONNECTION NOTES PRIMARY 25 Amp relay DE-STRAT NO OUTPUT CONNECTION NOT USED RETURN 25 Amp relay Connections for a 230V ~ 1 ph 50Hz power supply. NOTE: The MAINS power supply cable should be secured using the anchor supplied. - Page 61 16.5.1 LOW VOLTAGE CONNECTION STRIP OUTPUT / CONNECTION INPUT NOTES Volt free – Close on An internal volt free contact across pins 1 and 2 will close in the event of the heater locking ALARM CONTACTS alarm out. This connection can be used by a BMS to monitor the operation of the heater. RUNTIME Volt free –...
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Page 62: Electrical Connections
16.5.2 LOW VOLTAGE CONNECTION TERMINAL DETAILS ELECTRICAL CONNECTIONS Access to the High Voltage and Low Voltage Connection Strips can be made by removing the appropriate knockouts on the back panel of the water heater. All connections should be secured using an appropriate cord anchorage. One cord anchor is supplied with the water heater for securing the mains supply to the unit. -
Page 63: Wiring Diagram
WIRING DIAGRAM 16.9.1 WIRING DIAGRAM... -
Page 64: Ladder Diagram
LADDER DIAGRAM 16.11.1 LADDER DIAGRAM... -
Page 65: Smart System Control
17.0 SMART SYSTEM CONTROL GENERAL The Lochinvar EcoKnight™ uses the SMART SYSTEM control interface. The control panel display give information on set-up, system status and diagnostic data in words rather than codes. SMART SYSTEM CONTROL PANEL USB Drive PC Connection... -
Page 66: Saving Parameters
SAVING PARAMETERS Please note that the brackets ([]) denote screen status. 17.4.1 TO SAVE PARAMETERS AND EXIT PROGRAMMING Press the RIGHT SELECT (SAVE) key and then press the RIGHT SELECT (HOME) KEY. 17.4.2 TO ENTER A PARAMETER AND CONTINUE PROGRAMMING Press the RIGHT SELECT (SAVE) key 1 time to return to the parameter listings, press again to return to the menu listings. - Page 67 If flame is not detected after spark ends the control will perform a post-purge, then start another pre-purge cycle and try to light the water heater again. On the 145 model up the control will lock out after this second attempt on the 115 down a further four attempts will be made before the unit goes to lock-out.
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Page 68: Status Display Screens
STATUS DISPLAY SCREENS Section Display Description STANDBY The unit has not received a call for heat START The unit has received a call for heat and is checking all safety circuits PREPURGE The unit has received a call for heat and has initiated a pre-purge period IGNITION The unit has initiated the spark ignition to the main burner A (Water... - Page 69 Section Display Description 0-10V BMS IN 0-10V BMS OUT BMS ADDRESS BMS SCREEN BMS CONTROL? SYS PUMP SPEED BLR PUMP OUT DHW RUN TIME total DHW running time DHW CYCLES total DHW demand cycles POWER HOURS total time powered on total number of successful ignition C(Operational IGNITIONS...
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Page 70: Commissioning And Testing
18.0 COMMISSIONING AND TESTING ELECTRICAL INSTALLATION Notes on the requirements for electrical installation are provided in Section15.0: ELECTRICAL SUPPLY. A schematic drawing of the control circuit is shown in Figure 15.9. GAS INSTALLATION For design see Section 9.0: GAS SUPPLY. See Section 3.0: PRINCIPAL PARTS for details on the position of the gas connection. WATER CONNECTIONS For design see Section 12.0: WATER CONNECTIONS The system should be thoroughly flushed out with cold water without any circulating pumps in position. -
Page 71: Temperature Adjustment Procedure
<100 ppm 18.4.5 NATURAL GAS COMBUSTION FIGURES If the combustion figures are not within the range specified, contact Lochinvar Technical Support for further guidance. Combustion figures for Propane firing can be found in Section 18.0: LPG FUEL. TEMPERATURE ADJUSTMENT PROCEDURE 18.5.1... -
Page 72: Legionella Prevention
If a pasteurisation cycle is to be used at a temperature raised above the standard set-point this can be achieved in one of three ways, the method chosen will depend on the frequency and monitoring required. Contact Lochinvar Technical Support for further guidance. -
Page 73: Lpg Fuel
MUST be carried out by a competent person certified for work on LPG fuel. In the event of any seal or gasket being broken it is essential that the seal or gasket be replaced. Contact Lochinvar limited for replacement seals and gaskets. Model Part No. - Page 74 If the water heater is already installed and operational, you must turn off the gas supply, turn off the power supply and allow the water heater to cool before proceeding. The conversion procedure is as follows: 19.2.2 EKW116CE Remove the top and front access covers from the unit (no tools required for removal). Remove the impulse tube and wiring plug from the gas valve.
- Page 75 19.2.4 EKW146CE Remove the top and front access covers from the unit (no tools required for removal). Remove the gas valve and manifold from the unit via the unions on each end. Remove the three screws mounting the injector plate on the air shroud. Remove the four screws securing the manifold adapter to the injector plate taking care not to damage the O-ring.
- Page 76 19.2.6 EKW176CE – EKW236CE Remove the top and front access covers from the unit (no tools required for removal). Remove the four screws and nuts that hold the adaptor flange to the inlet of the venturi. Separate the flange and venturi ensuring the gasket is not damaged. Locate the propane orifice disk from the conversion kit bag.
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Page 77: Lpg Commissioning And Testing
<100 ppm 19.3.2 LPG COMBUSTION FIGURES If the combustion figures are not within the range specified, contact Lochinvar Technical Support for further guidance. 20.0 MAINTENANCE GENERAL Keep appliance area clear and free from combustible materials and flammable vapours and liquids. -
Page 78: Burner Inspection
BURNER INSPECTION The heat exchanger has a sight glass for inspection of the flame picture. NOTE: If the appliance has been in recent operation, this area may be hot. Appropriate precautions should be taken to prevent personal injury. To check the flame picture at high and low fire, the following procedure should be followed: Place the water heater into service mode. -
Page 79: Draining Water Heater System
DRAINING WATER HEATER SYSTEM The water heater must be drained if it is to be shut down and exposed to freezing temperatures. Maintenance and service procedures may also require draining the water heater. Turn off the water heater electrical disconnect switch. Connect a hose to the system drain valve. - Page 80 20.8.2 RELIEF VALVE At least once a year, the pressure relief valve should be checked to ensure correct operation. To check the valve, the manual override lever should be operated several times. The valve should seat properly and operate freely. If water does not flow, drain the water heater, remove the inoperative valve and inspect for obstructions or corrosion.
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Page 81: Smart System Control Settings
21.0 SMART SYSTEM CONTROL SETTINGS DISPLAY PANEL ACCESS MENU To access menus from the display panel use the procedure shown below: Only suitably qualified engineers should alter the settings and parameters within the EcoKnight™ water heater. Incorrect settings could lead to operational problems within the water heater. These problems would not be covered under the EcoKnight™... -
Page 82: Parameter Setting
PARAMETER SETTING Installer Menu Description User Access Section Access Vacation Mode (On/Off) 21.1 21.1 Time and Date 21.1 Software Version (read only) 21.1 Temperature Units (°C/°F) 21.1 DHW Night Setback Offset GENERAL 21.1 IF DHW NSB > 0: 21.1 i. DHW Night Setback On Times ii. - Page 83 User Installer Menu Description Section Access Access Anti-cycling Time 21.5 21.5 Anti-cycling Override Differential ANTI-CYCLING Ramp Delay (Enable/Disable) Modulation Factor Controlling Sensor(Outlet/System Supply/Inlet) 21.6 Cascade Address IF Address = 0: Maximum Cascade Outlet Set Point Cascade Offset Cascade Differential Cascade Type (L/L, EFF) Minimum On/Off Time Minimum Next On Time Minimum Pumps On 21.6 ELSE IF Address = 1: Alternate Leader?
- Page 84 User Installer Menu Description See Section Access Access DHW Pump Delay 21.8 CIRCULATING PUMPS 21.8 DHW Pump Anti-Seize Delay Service Notification Months 21.9 21.9 Service Notification Running Time 21.9 Service Notification Cycles SERVICE 21.9 NOTIFICATION Reset Service Reminder 21.9 Installer Name 21.9 Installer Phone Number Time &...
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Page 85: Viewable And Changeable Control Parameters
22.0 VIEWABLE AND CHANGEABLE CONTROL PARAMETERS Before changing parameters, note the settings so that the unit can be returned to its original operating parameters. These can be uploaded to a USB for later use see 21.10.1. GENERAL 22.1.1 VACATION MODE This parameter forces the DHW set points to decrease by the amounts programmed in the Night Setback Offset parameters. -
Page 86: Data Logging
22.1.7 NIGHT SETBACK OVERRIDE Any Night Setback On trigger currently active or scheduled within the next seven (7) days can be skipped. To skip a trigger, go to the Night Setback Status Screen and press the SKIP button. Rotate the NAVIGATION dial until the arrow (>) is next to the trigger you wish to skip. -
Page 87: Dhw Settings
DHW SETTINGS 22.4.1 DHW TANK SET POINT By installing a tank sensor, the SMART SYSTEM control can perform the tank thermostat function. The SMART SYSTEM control automatically detects the presence of this sensor, and generates a DHW call for heat when the tank temperature drops below the tank set point differential (Tank Set point Differential parameter), and finishes the call for heat when the tank temperature reaches tank set point. -
Page 88: Control Modes
CONTROL MODES 22.6.1 CONTROLLING SENSOR The controlling sensor parameter selects the sensor the control will use to regulate the water heater firing rate. This parameter is adjustable by the installer by accessing the Controlling Sensor parameter. The sensor selections are as follows: The outlet sensor regulates the firing rate based on the outlet water temperature of the water heater and the inlet sensor regulates the firing rate based on the inlet water temperature of the water heater. -
Page 89: Building Management System (Bms)
22.6.8 MINIMUM NEXT ON TIME In order to reduce the risk of temperature overshoot with a Cascade, this parameter defines the minimum time delay from starting one unit until the next unit may be started. The installer can adjust this time delay by accessing the Minimum Next on Time parameter. - Page 90 22.7.3 RATE AT MINIMUM VOLTS When programmed for BMS control through the 0 - 10V BMS input or through ModBus/BACnet and the BMS Type is programmed as POWER, the modulation percentage represented by the Volts at Minimum parameter is set by the Rate at Minimum Volts parameter.
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Page 91: Circulation Pumps
CIRCULATION PUMPS 22.8.1 DHW PUMP DELAY The DHW pump delay parameter sets the length of time the DHW pump will run after a DHW demand has been satisfied. This parameter is adjustable by the installer by accessing the DHW Pump Delay parameter. The time range for this parameter is 10 seconds to 40 minutes. -
Page 92: Basic Setup
USB-A (rectangular) port next to the display. Once a drive is inserted, the display will search the root directory of this drive for a folder named “Lochinvar”. If it does not find it, the display will ask if you want it to create this folder. -
Page 93: Erp Data Table
23.0 ERP DATA TABLE Type Circulating water heater: EKW116CE EKW146CE EKW176CE EKW206CE EKW236CE Condensing boiler: low temperature boiler: B11 boiler: Cogeneration space heater: Combination heater: Unit: Value Value Value Value Value Rated heat output 131.3 P-rated (P4) at 60-80C 103.4 130.6 177.4 Heat output (p1) 30% at 30-37C... -
Page 94: User Instructions
24.0 USER INSTRUCTIONS Following installation of the water heater, the installer shall instruct the user in the operation of the water heater and the safety devices and shall leave a copy of these instructions with the user. GENERAL REQUIREMENTS This equipment must be installed by a competent person, registered with an H.S.E. approved body. -
Page 95: Smart System Control
SMART SYSTEM CONTROL USB Drive PC Connection Left select key Navigation dial Reset switch Right select key The information on the bottom of the display shows the functions of the two SELECT keys on both corner, and the NAVIGATION dial in the centre. MENU Left SELECT key SETPOINTS... -
Page 96: Maintenance
MAINTENANCE See section 19.0 Maintenance AIR SUPPLY When installed as a conventionally flued appliance, the room in which the appliance is installed must be ventilated. Blocking these vents may lead to severe injury, serious property damage or death. The area in which the appliance is installed should not be used to store any other materials ... - Page 97 NOTES...
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