Related Manuals for Lochinvar HWHC 44-370 G CE
Summary of Contents for Lochinvar HWHC 44-370 G CE
- Page 1 EcoCharger Hybrid Gas Fired Condensing Water Heater with Intergrated Coil Installation, Commissioning, User & Maintenance Instructions Models: HWHC 44-370 G CE and PG CE HWHC 63-370 G CE and PG CE LV 311746 | October 2022...
- Page 2 IMPORTANT INFORMATION These instructions must be read and understood before installing, commissioning, operating or maintaining the equipment.
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Page 3: Preface
Nothing from this publication may be copied, reproduced and/or published by means of printing, photocopying or by whatsoever means, without the prior written approval of Lochinvar Ltd.. Lochinvar Ltd. reserves the right to modify specifications in this manual. Trademarks Brand names in this manual are registered trademarks of their respective owners. -
Page 4: Compliance
Compliance To safely produce domestic hot water, the design and construction of the HWHC water heaters is in accordance with: • the European Regulations 2016/426 on appliances burning gaseous fuels (GAR). • the European Standard for Gas–fired storage water heaters for the production of domestic hot water (EN89). -
Page 5: Contact Information
Institute of Gas Engineers and Managers (IGEM) Publications • IGE/UP/1 - Edition 2: Installation pipework on industrial and commercial premises. • IGE/UP/2: Gas installation pipework, boosters and compressors on industrial and commercial premises. • IGE/UP/4 - Edition 3: Commissioning of gas-fired plant on industrial and commercial premises. •... -
Page 7: About This Manual
About this manual Scope This manual gives information about safe and correct use of the water heater and how installation, maintenance and service activities have to be done correctly. You must obey the instructions in this manual. Caution Read this manual carefully before you start the water heater. It can cause personal injury and damage to the water heater when you do not read the manual and/or do not obey the instructions. -
Page 8: Document Identification
This manual contains the following text styles/symbols for situations that may endanger users/engineers, cause damage to equipment or need special attention: Note A note gives more information on a topic. Caution Obey the caution instructions to prevent damage of the water heater. Warning Obey the warning instructions to prevent danger of personal injury, and serious damage to the water heater. -
Page 9: Table Of Contents
Table of Contents Preface..................3 Copyright................3 Trademarks............... 3 Warranty................3 Liability................3 Compliance............... 4 Regulations............... 4 Contact information............5 About this manual............... 7 Scope................7 Target group..............7 Notation conventions............7 Document identification............8 User part..............13 Introduction................15 Safety..................17 Interface................... 19 Operator interface............ - Page 10 Use.................... 25 Turn on the water heater........... 25 4.1.1 The appliance's heating cycle..........25 Turn off the water heater...........27 4.2.1 Turn off for a short period..........27 4.2.2 Isolate from the mains............27 4.2.3 Turn off for a long period........... 28 Main menu..............
- Page 11 Conditions............... 53 7.2.1 Ambient conditions............53 7.2.2 Maximum floor load............53 7.2.3 Water composition............54 7.2.4 Working clearances............54 Installation diagram............55 Water connections............56 7.4.1 Unvented water connections..........56 7.4.2 Vented water connections..........57 Gas connection..............58 Solar heating system............58 Venting system..............58 7.7.1 C13/C33 concentric systems..........
- Page 12 9.2.5 Switch the pump on or off..........83 9.2.6 Setting the service interval..........83 9.2.7 Service mode..............83 9.2.8 Setting legionella prevention..........84 9.2.9 Solar heating system configuration........85 9.2.10 Setting the central heating configuration......87 Maintenance................89 10.1 Preparation..............89 10.2 Water-side maintenance............ 90 10.2.1 Descale the tank..............
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Page 13: User Part
User part 0311746_HWHC_44-63_II_ENEN_V2.6, 2022-10-17... -
Page 15: Introduction
Introduction The HWHC water heater stores and heats water for sanitary purposes. Cold water enters the bottom of the tank through the water inlet (1). The heated water leaves the tank at the top through the hot water outlet (2). To operate the water heater, the operator interface (3) and control switch (4) are used. - Page 16 User part...
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Page 17: Safety
Safety Lochinvar cannot be held responsible for damages or injuries leading back to: • Failure to follow the instructions provided in this manual. • Carelessness during use or maintenance of the water heater. Every user has to study the user part of this manual and has to follow the instructions in this part of the manual strictly. - Page 18 User part...
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Page 19: Interface
Interface Operator interface The operator interface is completely menu-driven, and comprises: • a 4-line display with 20 characters per line; • 6 buttons for controlling the water heater (below the display); • 6 graphical symbols (above the display); • a connector for a service PC; •... -
Page 20: Control Switch
Name Explanation Flame detection Water heater operational Solar heating system Solar energy is heating the water Control switch The control switch of the controller turns the water heater ON and OFF. Note that in the OFF position the water heater remains electrically live, in order for the continuous pump to stay running. -
Page 21: Pc Connection
PC connection The PC connection is exclusively intended to enable technicians from Lochinvar to read the status and history of the water heater. These details can be important for troubleshooting and/or resolving complaints. Status of the water heater During operation, the display shows the status of the water heater. -
Page 22: Error Conditions
The figure shows the display with the following information: • line one: the text EXTRA; • line two: the time, the day and T (see section 4.1.1); • line three: the switch-on time and the related water temperature setting; • line four: the text PERIOD ACTIVATED. -
Page 23: Service Conditions
Note When the display shows an error code, try to reset the water heater with [RESET]. Contact your service and maintenance engineer or supplier when the water heater does not restart or when the display shows the error code again. 3.6.3 Service conditions The figure shows the message SERVICE REQUIRED. - Page 24 User part...
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Page 25: Use
Turn on the water heater Start the water heater as follows: Fill the water heater (see section 7.9.1). Open the manual gas valve. Switch on the power to the water heater using the isolator between the water heater and the power supply. Switch the controller ON by setting the control switch to position I. - Page 26 When the water heater starts, it will run through the following steps: The water temperature drops below the set temperature of (for example) 65°C. The controller detects a heat demand and starts the operating cycle. The icon is activated. The message HEAT DEMAND appears. Once demand is registered, the fan is started to vent any gases that may be present.
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Page 27: Turn Off The Water Heater
When the water is up to temperature, the heat demand ceases and the post-purge starts. This takes about 25 seconds. The icons are dimmed. The icon is activated. The message POST PURGE appears. Following the post-purge, the fan stops and the pressure switch opens: The icons are dimmed. -
Page 28: Turn Off For A Long Period
Confirm OFF with [ENTER]. Caution Failure to wait until the fan stops can cause damage to the water heater. Wait until the fan has stopped. The icon is then dimmed. Switch the water heater OFF (position 0) using the control switch on the operator interface. -
Page 29: Notation Conventions For Menu-Related Instructions
4.3.1 Notation conventions for menu-related instructions The MENU [ ] of the controller is divided into submenus. For example, SETTINGS is one of the functions reached from the main menu. The menu SETTINGS is itself divided into sub-menus. For example, LANGUAGE is a sub-menu of SETTINGS. So, for example, to select menu LANGUAGE, this manual employs the following convention: •... -
Page 30: Week Program
4.3.3.2 Setting water temperature during ON mode The water temperature can also be directly adjusted when the water heater is in ON mode. Simply use: • [ ] to increase the value; • [ ] to decrease the value. • Confirm with [ENTER]. - Page 31 • on/off setting for a program-controlled pump. Note The switch-off time must always be followed by a switch-off time on the same day of the week. A maximum of three periods may be programmed per day. You can program a maximum of 21 periods.
- Page 32 Use [ ] and [ ] to set the hours. In the example, this is 08. Confirm with [ENTER]. The cursor moves to the minute digits, which will blink. Note Because the switch-off time can never be earlier than the switch-on time, the switch-off time setting is automatically adjusted with the switch-on time.
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Page 33: Adding Times To A Week Program
Confirm with [ENTER]. The display shown in the figure will appear. If you wish, you can use [ ] to scroll to another day, and change more switch-on (see section 4.3.6.1) and switch-off (see section 4.3.6.2) times. After changing all desired switch-on and switch off times, you can start running the week program: Scroll with [ ] to START OPERATION. -
Page 34: Deleting Times From A Week Program
Proceed as follows: Set the switch-on time (see section 4.3.6.1). Set the switch-off time (see section 4.3.6.2). Set the water temperature (see section 4.3.6.3). Set the program-controlled pump (see section 4.3.6.4). To activate the week program with the new period added, scroll down with [ ] to START OPERATION and confirm with [ENTER]. -
Page 35: Extra Period
Scroll with [ ] to the day to be deleted. For example, SU (Sunday) in the second period. See the figure. Confirm with [ENTER]. The lines showing switch-on/off times are replaced by the text DELETE BLOCK?. See the figure. Confirm with [ENTER]. (or use [RESET] to cancel). - Page 36 4.3.9.1 Programming an extra period Call up the menu for entering an extra period via: ]:: EXTRA PERIOD Confirm with [ENTER]. The display show the settings for the extra period. Setting the switch-on time Use [ ] and [ ] to set the day. In the example this is SU. Confirm with [ENTER].
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Page 37: Settings
Setting the water temperature Use [ ] and [ ] to set the water temperature. In the example this is 75°C. Confirm with [ENTER]. The cursor moves to PUMP ON Setting the program-controlled pump If required, a pump can be controlled during the period. Use [ ] and [ ] to set PUMP ON. - Page 38 The cursor is positioned beside LANGUAGE. Confirm with [ENTER]. The display shows the language selection menu. Scroll with [ ] to the desired language. Confirm with [ENTER]. The language is set. 4.3.10.2 Setting day and time To enter the time and day: Call up the menu for entering the day and time as follows: ]: SETTINGS.
- Page 39 The cursor moves to the minute digits, which will blink. Scroll with [ ] and [ ] to the next minute, for example 45. Confirm the minute setting with [ENTER]. The time has been set. Note The water heater takes no account of daylight saving. 4.3.10.3 Displaying water heater specifications Note...
- Page 40 User part...
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Page 41: Installation, Maintenance And Service Part
Installation, Maintenance and Service part 0311746_HWHC_44-63_II_ENEN_V2.6, 2022-10-17... - Page 42 User part...
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Page 43: Introduction
Introduction About the water heater The HWHC water heater is intended for heating water for sanitary purposes. The HWHC is a condensing gas–fired storage water heater with a fan in the air intake. The flue gasses transfer their heat to the water through an efficient heat exchanger. The water heater has a concentric venting connector and can function as an open or as a room- sealed water heater. - Page 44 transferred to the cooler water, thereby increasing the performance of the unit. The condensate yielded by this process is discharged via the condense trap (23). The insulation layer (24) prevents heat loss. The inside of the tank is enamelled to protect against corrosion.
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Page 45: Operating Cycle
Operating cycle The water temperature (T ) at the top of the water heater is used to control when the gas burner is started and stopped. The temperature changes in the water heater are used for switching the solar heating system on and off (using T and S ). - Page 46 Installation, Maintenance and Service part...
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Page 47: Safety
Safety Safety instructions For safety instructions about the use of the water heater, refer to Safety (see section 2) in the User part of this manual. Warning Installation, maintenance and service must be carried out by a qualified engineer in compliance with the general and local regulations imposed by the gas, water and power supply companies and the fire brigade. -
Page 48: Instructions On The Water Heater
Caution The anode protection remains active when the water heater is in OFF mode and the control switch is set to 0. Note Any leakage from the tank and/or connections can cause damage to the immediate environment or floors below the level of the boiler room. Install the water heater above a waste water drain or in a suitable metal leak tray. -
Page 49: Safety Devices
Safety devices 6.3.1 Protection for the water heater 6.3.1.1 Water temperature protection The controller (4) controls and monitors the safety of the water heater by means of sensors T and T is also used for protection of the water heater. However, this is primarily intended for control of the solar heating system (see section 6.3.3). -
Page 50: Safety Of The Installation
6.3.2.3 T&P valve A T&P valve is only mandatory in unvented installations. However, Lochinvar also recommends the use of a T&P valve in vented installations. A T&P (Temperature and Pressure Relief) valve monitors the pressure in the tank and the water temperature at the top of the tank. -
Page 51: Safety Of The Solar Heating System
against freezing of the fluid. The use of the drain–back tank also serves to extend the useful life of the fluid. The existence of a drain-back tank is set during the installation (see section 9.2.9.1). Refer to the solar heating system manual for more details. 6.3.3.2 Fluid temperature The heat exchanger of the solar heating system is filled with glycol. -
Page 52: Disposal
6.4.2 Disposal Old end-of-life appliances contain materials that need to be recycled. When you discard devices at the end of their service life, you must obey local legislation related to waste disposal. Never discard your old device together with regular waste. Put the device into a municipal waste collection depot for electrical and electronic equipment. -
Page 53: Installation
For more safety instructions, refer to Safety instructions (see section 6.1). Packaging Lochinvar recommends to unpack the water heater at or near its intended location. Remove the packaging material carefully to prevent damage to the water heater. Conditions The water heater is suitable for room-sealed and for open combustion: •... -
Page 54: Water Composition
7.2.3 Water composition The water must comply with the regulations for drinking water for human consumption. Water composition Hardness > 1.00 mmol/l: (alkaline earth ions) • German hardness > 5.6° dH • French hardness > 10.0° fH • English hardness > 7.0° eH •... -
Page 55: Installation Diagram
Installation diagram Fig. Installation diagram Pressure reducing valve (mandatory) UNVENTED T&P valve Stop valve (recommended in pipe C and mandatory in pipe A) Non-return valve (mandatory) Circulation pump (optional) Drain valve (mandatory) Manual gas valve (mandatory) Service stop valve (recommended) Temperature gauge (recommended) Condensation drain (mandatory) Draw-off points... -
Page 56: Water Connections
Note Use this installation diagram when you: • install the water connections (see section 7.4) • install the condensate drain • install the gas connection (see section 7.5) • fill the water heater • drain the water heater Water connections 7.4.1 Unvented water connections Warning... -
Page 57: Vented Water Connections
7.4.1.4 Condensation drain Fit a sloping waste water pipe to the condens trap (13) for condensation drainage and connect this via an open connection to the waste water discharge. Caution If the condensation drain is not fitted to the waste water discharge using an open connection, this can cause faults. -
Page 58: Gas Connection
Gas connection Caution Make sure that the gas supply pipe has the correct diameter and length to supply sufficient capacity to the water heater. Caution Make sure that the gas supply pipe is clean. Contamination in the pipe can cause damage to the gas control valve, during operation. - Page 59 This manual does not discus installation type B23. When you need a B23 system, contact Lochinvar for more information. Caution Always make sure that the flue gas outlet discharges into an area approved for the correct type of installation.
- Page 60 Fig. Venting systems Installation, Maintenance and Service part...
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Page 61: C13/C33 Concentric Systems
Thin walled galvanized steel Diameter flue gas outlet 100 mm Diameter air inlet 150 mm Description parts Lochinvar Part number Wall terminal set LV302504 A wall terminal (1), a 500 mm concentric pipe and a 90° bend Wall terminal LV302505... -
Page 62: C13/C33 Parallel Systems
Parallel Material flue gas outlet Thick walled aluminum Material air inlet Diameter flue gas outlet +0,6 -0,6 Diameter air inlet Description parts Lochinvar Part number Wall terminal LV302505 Roof terminal LV311463 Adapter box concentric to LV307142 parallel - terminal side... - Page 63 Fig. Example parallel venting system IMD-0794 R0 Refer to the table for the correct pipe dimensions of the C13 or a C33 parallel venting systems. Description Unit HWHC 44-370 Default Diameter flue discharge/ 2x100 air inlet Maximum length air inlet Maximum length flue gas outlet 45°-bend...
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Page 64: C43/C53/C63 Systems
The flue gas terminal must comply to the EN 1856-1 requirements. The maximum allowable recirculation rate is 10% under wind conditions. Contact Lochinvar for more information and/or part numbers of the C43, C53 and C63 venting systems. Concentric systems Refer to the table for the correct pipe dimensions of the C43, C53 and C63 concentric systems. -
Page 65: Electrical Connections
-0,6 Diameter air inlet Refer to C13/C33 parallel systems for the Lochinvar part numbers. The same parts can be used for the C43, C53 and C63 parallel systems. Use the "adapter box concentric to parallel - water heater side" (part number LV312209) for C63 parallel systems. -
Page 66: Mains Power
7.8.3.1 Isolating transformer For more information about an isolating transformer, or to order an isolating transformer, please contact Lochinvar. An isolating transformer should be used if there is a case of 'floating neutral'. Note The total power consumed by the appliance goes via the isolating transformer. -
Page 67: Electrical Connection Of The Solar Heating System
Connect neutral (N), live (L) and earth (A) to terminals 13, 14 and 15 as indicated in the table (see section 7.8.1). Fit the cable in the strain relief. If you have no more connections to make: Fit the cover on the terminal block. Fit the covers onto the water heater. - Page 68 7.8.4.1 Preparation Remove the cover (snap-on type) from the terminal block for the collector. This has the following terminals: 7.8.4.2 Connecting the mains power Note Just as with the water heater controller, the solar heating system controller must have a permanent electrical connection to the mains power supply.
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Page 69: Commissioning
Connect the lead for sensor S2 with the blade connectors to the sensor. Connect the other end to terminals 2 and 4 of J14. Fit the cables in the strain relief. Continue (see section 7.8.4.6). 7.8.4.6 Connecting communication cable Note The communication cable must always be connected, otherwise neither the appliance nor the solar heating system controller will run. - Page 70 Open all draw-off points to bleed the entire installation of air. The water heater is now under water supply pressure. Make sure that no water comes out of the expansion valve (15) or the T&P valve (3). If water comes out: Examine if the water supply pressure is greater than the specified value in the Technical details.
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Page 71: Procedure For Checking The Supply Pressure
Then shut off the water supply. Drain all remaining water from the system. Now you can fill the system with glycol. Filling with glycol Insert the hose of the glycol pump into the jerry can containing the glycol. Connect the pump to the jerry can. Connect the hose of the glycol pump to the inlet combination of the pump station. - Page 72 IMD-1095a R0 IMD-1096a R0 Open the gas supply and vent the gas supply line via the test nipple. Connect a pressure gauge to the test nipple as soon as gas starts to flow from it. Switch on the power to the appliance using the isolator on the appliance. Switch the controller ON by setting the 0/I switch to position I.
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Page 73: Procedure For Checking The Gas Control Valve Pressure
If there is nothing else you need to check or adjust, you can put the covers back on the appliance. 7.9.3 Procedure for checking the gas control valve pressure The procedure for checking the gas control valve pressure is only applicable to appliances that have a pressure-reducing valve. -
Page 74: Co 2 Adjustment
Fig. Gas control valve pressure adjustment IMD-1096b R0 7.9.4 adjustment To check the CO value under full load and partial load and to adjust it if necessary, proceed as follows: Isolate the appliance from the power supply (see section 4.2.2). Carefully remove the covers from the appliance. - Page 75 Fig. CO adjustment (full load) IMD-1095b R0 Note Turning to the left (anticlockwise) means more gas (higher CO level) and turning to the right (clockwise) means less gas (lower CO level). Note Note After conversion, you must check that the gas control valve is gastight. If you have increased T , set it back to the original value using [ ].
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Page 76: Switching Pressure Measurement
Fig. CO adjustment (partial load) IMD-1095c R0 Note Turning to the left (anticlockwise) means more less (lower CO level) and turning to the right (clockwise) means more gas (higher CO level). Note After conversion, you must check that the gas control valve is gastight. Remove the CO measurement probe from the measurement nipple of the flue gas outlet pipe. -
Page 77: Turn On The Water Heater
Replace the covers. 7.9.6 Turn on the water heater Refer to the procedure in the user part to Turn on the water heater (see section 4.1). 7.10 Decommisioning To decommission the water heater: Turn off the water heater (see section 7.10.1) Drain the water heater 7.10.1 Turn off the water heater... - Page 78 Shut off the gas supply (10). Close the stop valve (11) in the hot water pipe. Close the stop valve (4) between the cold water head tank and the cold water inlet (A). Open the drain valve (9). Bleed the water heater (or installation) so that it drains completely. 7.10.2.3 Draining the solar heating system Note...
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Page 79: Conversion Of Gas Type
Conversion of gas type Caution Conversion of the water heater may only be carried out by a qualified person. Use a special conversion kit to converse the water heater when: • The water heater has to operate on a different family of gases (liquid petroleum gas or natural gas). - Page 80 Installation, Maintenance and Service part...
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Page 81: Settings
Settings Operator interface The operator interface is completely menu-driven and enables the user to change settings and to verify the status and history of the water heater. For more information about how to use the operator interface, refer to Operator interface (see section 3). -
Page 82: Hysteresis
9.2.1 Hysteresis The water heater does not start immediately when the water temperature is below the temperature setpoint. To prevent that the water heater switches on and off too often, there is a margin; the hysteresis. Call up the menu to set the hysteresis as follows: •... -
Page 83: Display The Selected Water Heater
9.2.4 Display the selected water heater Call up the menu for displaying the water heater selection as follows: • ]: SELECT APPLIANCE The water heater number can be found on the rating plate. The water heater selection has been correctly preset in the factory. 9.2.5 Switch the pump on or off If a program-controlled pump (see section 7.8.3.2) is installed, it can be switched ON or... -
Page 84: Setting Legionella Prevention
Use [ ]:SERVICE OPERATION to display the SERVICE OPERATION menu. [ ] and [ ] can be used to switch between PARTIAL LOAD and FULL LOAD. If there is a heat demand, the water heater will first run through a startup cycle, then continue to operate in FULL LOAD or PARTIAL LOAD mode. -
Page 85: Solar Heating System Configuration
9.2.8.1 Switching legionella prevention on and off To switch legionella prevention on or off, select: • ]: ANTI LEGIONELLA • Select NO to switch legionella prevention off. • Select YES to switch legionella prevention on. The following screen appears: • Select START to activate the period currently displayed. - Page 86 The default is NO. Note During commissioning, it is important to check whether this setting corresponds with the configuration of the solar heating system. 9.2.9.2 Switching on the solar pump This menu lets you switch on the pump in the solar heating system manually. Call up this menu as follows: •...
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Page 87: Setting The Central Heating Configuration
9.2.9.5 Setting the Q/T sensor The energy contribution of the solar heating system can be calculated (see section 9.2.9.6) using the Q/T sensor. This calculation is only possible if your installation is equipped with such a Q/T sensor. If this is the case, then you must set this value to YES, otherwise NO. - Page 88 Installation, Maintenance and Service part...
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Page 89: Maintenance
On the operator interface, the maintenance interval can be set as a reminder. The display shows SERVICE REQUIRED when the pre-set interval has elapsed. To determine the correct interval, Lochinvar recommends to do a system check on both the water and the gas side, three months after installation. -
Page 90: Water-Side Maintenance
The display will now show INTERNAL CHECK for about 10 seconds, and will then go to the main menu. Activate ON mode by going through the following steps: Press once on the blue arrow [ ] to position the cursor beside ON, then press [ENTER]. -
Page 91: Clean The Condensate Drain
Fig. Cleaning opening IMD-0080 R1 Remove the cover plate (1) on the outer jacket (see the figure). Undo the bolts. Remove the cover and the gasket. Inspect the tank and remove the loose scale deposits and contamination. If the scale cannot be removed by hand, descale the water heater with a descaling agent. -
Page 92: Solar Collector Maintenance
10.4 Solar collector maintenance See installation or users' manual for the solar collector. If this topic is not covered in the manual, then contact the supplier of the collectors. 10.5 Finalization To finalize the maintenance, carry out the following steps: Fill the water heater (see section 7.9.1). -
Page 93: Troubleshooting
Troubleshooting 11.1 Errors and warnings The water heater can have three different kinds of errors and warnings: • General errors, which are not displayed • Displayed errors, which are divided in two different groups: Lock out errors: when the cause is removed, you can reset the error to resume operation. -
Page 94: General Errors
11.1.1 General errors Note For the coding of the connections, refer to the Electrical wiring diagram. Indication Cause Measure Gas smell There is a gas leak • Close the mains gas valve at once. • Do not operate any switches. •... -
Page 95: Displayed Errors
Indication Cause Measure Insufficient or no hot The water heater is off. Turn on the water heater (see section 4.1). water There is no supply voltage. Make sure that: • the control switch is set to I. • the isolator is in ON position. •... - Page 96 Code and description Cause Measure S07 (blocking error) Sensor is not (correctly) connected Connect the sensor lead to J14 (ports 2 and 4) of the solar controller Open circuit from temperature sensor S Damaged cable and/or defective sensor Replace the cable and/or sensor the bottom of the tank.
- Page 97 Code and description Cause Measure F02 (lock out error) Defective motor and/or rotor. • Check the motor and rotor • Replace the fan if the motor or rotor is Fan fails to run at correct defective. speed. • Reset controller Damaged wiring •...
- Page 98 Code and description Cause Measure F04 (lock out error) No gas • Open the main gas supply valve and/or the manual gas supply valve before the Three unsuccessful gas control valve ignition attempts. • Check supply pressure to the gas control valve •...
- Page 99 Code and description Cause Measure F11 (blocking error) Defective gas control valves See F07. Flame detection with closed gas control valve. F18 (blocking error) No power supply at solar controller • Check that there is power to the solar heating system controller Communication error •...
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Page 100: Warnings
Code and description Cause Measure E03 (lock-out error) The two temperature sensors in the tank Check sensor position and wiring. detect a difference of > 10°C over a Reset the controller if necessary. Replace Error in temperature period of at least 60 seconds. the sensor if the error persists. - Page 101 Indication Cause Remark Collector temperature too Temperature S is greater than You can let the message disappear high automatically by allowing the heating collector max fluid to cool down. You can also manually eliminate the message by pressing the RESET and ENTER buttons simultaneously.
- Page 102 Installation, Maintenance and Service part...
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Page 103: Appendices
Appendices 12.1 Technical details Description Unit HWHC 44-370 HWHC 63-370 General Contents litres Empty Weight Maximum floor load Maximum operating pressure (vented) kPa (bar) 800 (8) 800 (8) Maximum operating pressure (unvented) kPa (bar) 550 (5.5) 550 (5.5) Control thermostat - adjustment range °C 40...80 40...80... - Page 104 Description Unit HWHC 44-370 HWHC 63-370 Load profile Energy Efficiency Class (Energy Label) Energy Efficiency Daily Electricity Consumption 0.259 0.260 Daily Fuel Consumption kWh GCV 26.802 26.192 Mixed Water 40°C (V40) ltr. ∞ ∞ Additional Load Profile Energy Efficiency Daily Electricity Consumption Daily Fuel Consumption kWh GCV Mixed Water 40°C (V40)
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Page 105: Dimensions
12.2 Dimensions Size Description Unit HWHC 44-370 HWHC 63-370 Overall height 2055 2055 Position on pallet Appliance diameter Depth Width Diameter of flue gas discharge 100/150 100/150 Height of flue gas outlet/air supply 2020 2020 x position flue gas outlet y position flue gas outlet Height of gas connection 1960... - Page 106 Size Description Unit HWHC 44-370 HWHC 63-370 Heat exchanger supply connector (female) Rp 1 Rp 1 Heat exchanger outlet connector (female) Rp 1 Rp 1 Recirculation connection (female) Rp 1 Rp 1 Fig. Dimensions HWHC 44º 45º 45º IMD-0773 R0 Installation, Maintenance and Service part...
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Page 107: Gas Details
12.3 Gas details Description Unit HWHC 44-370 HWHC 63-370 Gas category 2H (G20) Diameter of the venturi restrictor Nominal Load (gross) 45.2 64.4 Nominal output 43.5 61.5 Supply pressure mbar (full load) vol% 9.0 ± 1.0 9.0 ± 1.0 (full load) vol% 4.8 ±... -
Page 108: Week Program Card
12.4 Week program card You can cut the week program card out and keep it near the water heater. Period Time Pump ... ºC ON / OFF ... ºC ON / OFF ... ºC ON / OFF ... ºC ON / OFF ... - Page 109 ... ºC ON / OFF ... ºC ON / OFF ... ºC ON / OFF ... ºC ON / OFF Example Period Time Pump 14:30 70 ºC ON / OFF 16:15 0311746_HWHC_44-63_II_ENEN_V2.6, 2022-10-17...
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Page 110: Electrical Wiring Diagram
12.5 Electrical wiring diagram X J2 JP11 JP12 21 22 23 Primair Secundair 230VAC 50Hz 0309 686a R0 230VAC 50Hz Installation, Maintenance and Service part... - Page 111 Cable colors: Components: Controller connections: Brown Power connection for controller Control Blue Extra error signal connection Flame probe Green Gas control valve connection Black Program-controlled pump Hot surface igniter connection White Gas control valve Power connection for the fan Grey/Beige Burner earth connection Controller display connection Green...
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Page 112: Electrical Wiring Diagram Solar Heating System
12.6 Electrical wiring diagram solar heating system Cable colors: Components: Controller connections: Brown Control Connection of combined Q/ T sensor (1-2-3-4) Blue Solar heating system pump [VAC] (modulating) (230 VAC) Connection of temperature sensor Green (2-4) Solar heating system pump [PWM] Black (modulating) (PWM-signal) -
Page 113: Menu Structure
12.7 Menu structure CONTROL SERVICE MAIN MENU PROGRAM HYSTERESE HYSTERESE DOWN HISTORY START OPERATION OF ERRORS CHANGE SETPOINT APPLIANCE HISTORY WEEK- PROGRAM SELECT APPLIANCE START OPERATION SERVICE INTERVAL PROGRAM OVERVIEW SERVICE OPERATION EXTRA PERIOD FULL LOAD SETTINGS PARTIAL LOAD LANGUAGE ANTI LEGIONELLA DAY/TIME SOLAR... -
Page 114: Declaration Of Conformity
12.8 Declaration of conformity Installation, Maintenance and Service part... -
Page 117: Detailed Installation Diagram
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 equivalent size and quality The warranty period given on the replacement water heater shall be equal to the remaining warranty period of the original water heater that was supplied. - Page 118 Article 5: Scope of the warranty The obligations of Lochinvar Ltd. pursuant to the specified warranty are limited to free delivery from the warehouse of the replacement assemblies, parts or water heater, respectively.
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Page 119: Index
12.10 Detailed installation diagram 0311746_HWHC_44-63_II_ENEN_V2.6, 2022-10-17... - Page 120 Legend: EcoCharger Hybrid HWHC Water Heater Solar Control Flat Plate Solar Thermal Collector Solar Pump Station Class Two RHI Complaint Heat Meter QT Flow Sensor Temperature Sensor - Flat Plate Solar Thermal Collector Temperature Sensor - Bottom EcoCharger Hybrid HWHC Air Aeration Valve Drain Valve Expansion Valve...
- Page 121 Index Connecting solar collector....68 Connecting tank sensor...... 68 Connecting the mains power....68 Contact information......5 Control switch........20 Conversion of gas type.......79 Copyright........... 3 Copyright........... 3 Declaration of conformity....114 Decommisioning........77 Deleting times from a week program..34 About the water heater...... 43 Descale the tank.......
- Page 122 Mains power........66 Maintenance........89 Maximum floor load......53 Menu structure........ 113 Fan..........49 Filling..........69 Filling the solar heating system... 70 Filling unvented installations....69 Filling vented installations....70 Notation conventions......7 Filling with glycol.......71 Notation conventions for menu-related Finalization........92 instructions........
- Page 123 Safety.......... 17, 47 Unvented installation......50 Safety devices........49 Unvented water connections....56 Safety instructions....... 47 Use............25 Safety of the installation.......50 User part..........13 Safety of the solar heating system..51 Scope..........7 Service conditions........23 Service mode........83 Service program........81 Setting day and time......38 Vented installation.......
- Page 124 Lochinvar Ltd reserves the right to change 8 Lombard Way, The MXL Centre, Banbury, Oxon, OX16 4TJ specifications without prior notice Tel: +44(0) 1295 269 981, Fax:+44(0) 1295 271 640, Email: info@lochinvar.ltd.uk www.lochinvar.ltd.uk...