Operating Instructions Logamatic 4323 Control panel For the user 6 720 618 563 - 11/2008 US/CA Please read carefully before use
Contents 1 Introduction . 2 What you should know about your heating system . 3 Tips on energy-efficient heating 4 Safety . 4.1 4.2 4.3 4.4 4.5 4.6 4.7 5 7 About this manual . . . . . . . . . . . . . Intended use . . . . . . . . . . . . . . . . Standards, regulations and directives . Key to symbols . . . . . . . . . . . . . . . Please observe these notes. . . . . . . Cleaning the control panel . . . . . . . . Disposal . . . . . . . . . . . . . . . . . . . Controls on the control panel .
Contents 7.17 7.18 7.19 7.20 7.21 8 Additional programming options 8.1 8.2 8.3 8.4 9 Interrupting and continuing the vacation function Setting the party function . . . . . . . . . . . . . . . Setting the pause function . . . . . . . . . . . . . . Room temperature calibration . . . . . . . . . . . . Automatic maintenance message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 . . . . . . . . . . . . . . . . . . . . . . . 48 . . . . . . . . . . . . . . . . . . . . . . . 48 . . . . .
1 1 Introduction Introduction With your purchase of this Logamatic control panel you have acquired a product that promises you easy control over your heating system. It offers you optimum heating convenience and minimum energy consumption. The control panel enables you to operate your heating system so that you can combine your economical and ecological aspirations. Of course your personal comfort is always the priority.
What you should know about your heating system 2 2 What you should know about your heating system Why should you become more familiar with your heating system? Modern heating systems offer you many functions for saving energy without sacrificing comfort. Getting to know this heating technology may seem daunting at first, but after a short while you will recognize the advantages you can gain from a heating system that is set up to meet your personal requirements.
2 What you should know about your heating system Fig. 1 shows the heating circuit of a pumped central heating system: The burner [2] heats the water inside the boiler [1]. This boiler water is transported by the pump [3] through the system supply pipe [4] to the radiators [6]. The boiler water flows through the radiators, and in doing so, gives off some of its heat. The boiler water flows back to the boiler via the return line [7], where the cycle starts again.
What you should know about your heating system 2 Why do you need a heating control panel? The control panel ensures convenient heat and economical consumption of fuel and electrical energy. It switches the heat generator (boiler and burner) and pumps ON if warm rooms or hot water are desired. In so doing, it uses the components of your heating system at the correct time. Furthermore, your heating system records different variables that influence the room temperature and compensates for these.
2 What you should know about your heating system Weather-compensated control (outdoor reset) With weather-compensated control, only the outdoor temperature captured by the outdoor temperature sensor is decisive for the supply temperature. Room temperature fluctuations through radiant energy from the sun, occupants, open fireplaces or similar external heat sources are not considered.
What you should know about your heating system 2 Why do I need a timer? What are heating zones? Advanced heating systems are equipped with a timer to save energy. With a timer, you can set up an automatic changeover between two different room temperatures, subject to time. This enables you to set a reduced room temperature at night, or at other times when a reduced temperature is sufficient, while operating your heating system with the standard room temperature during the day.
3 3 Tips on energy-efficient heating Tips on energy-efficient heating Here are a few tips on how to heat economically without sacrificing convenience: z Only heat if you need warmth. Use the preset heating programs (standard programs) in the control panel or those that have been tailored to your individual requirements. z Air rooms properly during the heating season: Open windows fully three to four times a day for approx. 5 minutes.
Safety 4 Safety 4.1 About this manual These operating instructions contain important information regarding the safe and correct operation of the Logamatic 4323 control panel. 4.2 RISK OF INJURY/ SYSTEM DAMAGE CAUTION! Intended use Tip for optimum use of equipment and adjustment as well as useful information. 4.5 Standards, regulations and directives USER NOTE Observe all regulations and standards applicable to installation and operation of the system in your country.
4 Safety 4.7 RISK OF INJURY/ SYSTEM DAMAGE CAUTION! Disposal due to operator error! z Dispose of the control panel packaging in an environmentally-responsible manner. Operator errors can cause injury and damage to property. z The lithium battery in the CM431 module must be replaced by a heating contractor only. z Make sure that children never operate the appliance unsupervised or play with it. z Make sure that only personnel trained to operate the appliance correctly have access to it.
Controls and MEC2 remote control 5 Controls and MEC2 remote control 5.1 Controls on the control panel Fig. 4 Logamatic 4323 control panel (standard delivery) 1 On/Off switch 2 Connection for external service equipment 3 L1, L2 fuses Fig. 5 5 Installed modules (possible full complement) 1 Slot 1: e.g. FM442 – heating zone 1, heating zone 2 2 Slot 2: e.g.
5 5.2 Controls and MEC2 remote control MEC2 remote control The MEC2 remote control is the central element used to operate the Logamatic 4323 control panel. Display The display (Æ Fig. 6, [4]) indicates functions and operating values, e.g. the actual room temperature. Dial 4 The dial (Æ Fig. 6, [5]) is used to set new values and scroll through the menus. 3 Buttons 2 You control the functions via the buttons, and the relevant indications appear on the display.
Controls and MEC2 remote control 5 The central MEC2 remote control Fig.
5 5.3 Controls and MEC2 remote control Switching on the control panel z Check that the control panel ON/OFF switch (Æ Fig. 8, [1]) and the manual switches on the installed modules (Æ Fig. 8, [2]) are set to "I" and "AUT". z Switch the control panel ON by setting the ON/OFF switch to "I" (Æ Fig. 8, [1]). After approx. 2 minutes all modules installed in the control panel are recognized and the standard display is shown. Fig. 8 5.
Basic functions 6 6 Basic functions In this chapter you will find information about the standard functions of the MEC2 remote control and their use. The standard functions are: – Select the operating mode – Set the room temperature – Set the DHW temperature – Load DHW once 6.1 Simple operation The standard functions are controlled by pressing one of the buttons on the "Standard functions" keypad or by turning the dial.
6 Basic functions USER NOTE If your heating system is equipped with several heating zones, you must first select the correct heating zone (Æ Chapter 7.6). Only then can you select the operating mode and room temperature. USER NOTE The following MEC2 displays covers the available screens: – of module ZM433 (standard equipment), – of the most frequently-used modules FM441 and FM442 (accessories).
Basic functions 6.3 6 Select operating mode You can operate the MEC2 remote control in two ways: – in automatic mode – in manual mode Automatic mode AUT Typically buildings, homes are heated less at night than during the day. With the MEC2 remote control, you don't need to adjust the radiator valves before bedtime or in the morning. The automatic changeover of the MEC2 remote control does this for you. It switches between day mode (standard mode) and night mode (setback mode).
6 Basic functions 6.3.1 Selecting automatic mode In automatic mode your heating system will operate with the timer program, i.e. central and DHW heating at preset times (Æ "Why do I need a timer?", page 9). Example: Enabling automatic mode AUT Press "AUT". The LED of the AUT button is on; automatic mode is active. In addition, either the "Day mode" or "Night mode" LED will light up. This is subject to the set times for day and night mode.
Basic functions 6 6.3.2 Selecting manual mode Press either "Day mode" or "Night mode" to change to manual mode. Press "Day mode". The LED of the day mode button lights up. Now your heating system is in constant day mode (standard mode). room temp set 70°F day mode always Press "Night mode". room temp set 63°F The LED of the night mode button lights up. Now your heating system is in constant night mode (setback heating mode), and operates at a lower room temperature.
6 6.4 Basic functions Set the room temperature With the flap closed you can adjust the room temperature with the dial. With the flap open, also press "Day mode" or "Night mode". With the dial, you can select the room temperature in degree steps between 52 °F (11 °C) (day), or 36 °F (2 °C) (night), and 86 °F (30 °C). The set temperature is displayed via an LED next to the dial. For temperatures below 59 °F (15 °C) or above 77 °F (25 °C), the "–" or "+" LED illuminates.
Basic functions 6 6.4.2 For the operating mode not currently enabled You may also adjust the room temperature for an operating mode that is currently inactive. For example, you are currently in automatic day mode and would like to change the set night temperature. Hold down "Night mode" and select the desired night room temperature with the dial (here: "61°F" (16 °C)). + Release the "Night mode" button. room temp set 61°F The selected night temperature is now set to 61 °F (16 °C).
6 Basic functions 6.5 DHW heating The user interface also offers you the option of heating DHW in an energyconscious manner. For this purpose, DHW heating can be selected via a timer. You can select between the set values for DHW and "OFF" to stop DHW heating. To save energy, DHW heating will be switched off outside the programmed times, i.e. DHW is not heated in night mode. DHW heating is factory-set to 140 °F (60 °C) in automatic mode. Fig.
Basic functions 6 6.5.1 Setting the hot water temperature RISK OF SCALDING from hot water. WARNING! Hot water temperatures above 122 °F (50°C) can cause scalding almost immediately. z Do not draw off DHW unmixed. z Ensure that a thermostatic tempering valve is installed as protection against scalding. You can change the DHW temperature: Hold the "DHW" button down and select the desired DHW temperature with the dial. + Release the "DHW" button. The newly-selected DHW temperature is saved within approx.
6 Basic functions 6.5.2 Single DHW charging If the "DHW" LED lights up, only a limited amount of hot water remains in the storage tank. Should you require a larger amount of DHW, proceed as follows: Press "DHW". The "DHW" LED flashes, and a single DHW charge is started. DHW actual 131°F Depending on the size of the storage tank and the boiler output, DHW will be available after approx. 10 to 30 minutes. With instantaneous water heaters or combination boilers, DHW will be available almost immediately.
Extended functions 7 7 Extended functions The extended functions are explained in this chapter. You need the extended functions to be able to change the factory settings of your heating system.
7 7.2 Extended functions Controlling the extended functions The extended functions provide access to an additional control level. At this level, proceed according to the "Push and turn" principle. The control procedure is always similar: z Open flap. + Hold the desired button down, e.g. the "Time" button, and simultaneously turn the dial. By turning the dial, you modify the values that flash on the display. Release the button. Modified values are saved. "Back" button = Exit menu. 7.
Extended functions 7 Depending on the modules, various of the following operating displays can be called up: heating zone 0 – Burner and run time room temp set 68°F – Actual heating zone room temperature – Set room temperature of heating zone – Operating status of heating zone – Measured supply temperature of heating zone – Measured DHW temperature* – Set DHW temperature* – DHW operating mode* – Operating status of recirculation pump and tank primary pump* * Only if a DHW module has been installed. 7.
7 7.5 Extended functions Setting the date and time USER NOTE Date and time are preset at the factory. This function is backed up by battery power independent of the mains power supply. Setting the date Hold "Weekday" down, and select the desired date with the dial (here: "20"). + The name of the day automatically changes (here "Monday") if you set the date using the dial (here "20"). set date 08/20/2009 Release "Weekday" to save your input. Monday Press "Weekday" again to enter the month.
Extended functions 7.6 7 Selecting a heating zone Your heating system may be equipped with several heating zones. If you want to change a setting, e.g. the heating program, first select the desired heating zone. Depending on the equipment level of your heating system, the following heating zones can be selected: – MEC2 heating zones (all heating zones assigned to the MEC2, Æ Chapter 7.8) – Heating zone 0 – 8 – DHW – Recirculation z Open flap.
7 7.7 Extended functions Adjusting the room temperature for another heating zone Your heating system may be equipped with several heating zones. If you want to change the room temperature for a different heating zone than the one last selected, first select the desired heating zone. Depending on the equipment level of your heating system, the following heating zones can be selected: – MEC2 heating zones (all heating zones assigned to the MEC2, Æ Chapter 7.
Extended functions 7 Press and hold down "Temp". First, the selected heating zone is displayed. After approx. 2 seconds, the display will show the currently-selected temperature and operating mode. + Adjust the temperature for the heating zone with the dial (here: "70°F" (21 °C)). Release the button to save your input. room temp set 70°F The day room temperature is now adjusted to 70 °F (21 °C). The selected permanent display will then appear again.
7 7.8 Extended functions Heating zones with MEC2 remote control During installation, your heating contractor will determine which heating zones are to be controlled by the MEC2 remote control. These heating zones are called "MEC heatingzones".
Extended functions 7.9 7 Selecting and modifying a heating program 7.9.1 What is a heating program? A heating program automatically switches the operating mode (day and night mode) at fixed times. This automatic changeover is effected via a timer.
7 Extended functions 7.9.2 Timer program for DHW You may enter your own heating program for DHW heating. This saves you energy. Determine the time points so that DHW is only available when one heating zone is in standard heating mode (day mode). In this case, DHW is heated 30 minutes before day mode of the first heating zone, so it is available at the selected time. Fig.
Extended functions 7 7.10 Selecting a standard program The MEC2 remote control is equipped with eight different, preset heating programs that act as standard programs. See the following page for a summary of the preset times of the standard programs. Please check which standard program best meets your requirements. First check the number of set points, and then the times. The "family" program is preset at the factory. z Open flap. z Select a heating zone (Æ Chapter 7.6). Press and hold down "PROG".
7 Extended functions 7.
Extended functions 7 7.12 Modifying the standard program by moving set points If the set points, i.e. the times of a standard program at which the system changes over between day and night mode, only partially suit you, you may change them, or ask your heating contractor to change them for you. The modified standard program is saved under "custom" and the number of the heating zone. The heating program memory is available for this.
7 Extended functions Hold down "Time" and select the desired time with the dial. Example: "06:30am" (06:30). + Release "Time". The newly-adjusted time for the "ON" set point is now saved. custom program 2 Monday at 06:30am The modified set point will be saved under the "custom" program and the number of the heating zone (here "2"). 70°F Continue to turn the dial until the next set point that you want to change is displayed. The "OFF" set point for Monday appears.
Extended functions 7 7.13 Set warm weather shut down (WWSD) temperature In addition to the outdoor temperature, your Logamatic 4323 control panel considers the ability of the building to store heat and its thermal insulation (and from this creates the "Adjusted outdoor temperature", Æ Fig. 15), and after a delay, automatically changes over between summer and winter mode. AUT Fig.
7 Extended functions Winter mode DHW and central heating are operational if the "Adjusted outdoor temperature" falls below the factory-set changeover threshold of 63 °F (17 °C). Setting automatic warm weather shut down changeover The desired heating zone must be selected before setting the summer/winter time changeover. One single heating zone or all heating zones allocated to the MEC2 can be selected. z Select a heating zone (Æ Chapter 7.6).
Extended functions 7 7.14 Setting the DHW operating mode This allows you to change the DHW temperature in the DHW storage tank. AUT z Open flap. Hold down "Heating zone" and select "DHW" with the dial. + Release the "Heating zone" button. select heat zone DHW Then the permanent display will be shown again. room temp 67°F outdoor temp 32°F Select one of the following operating modes for DHW: – "constant oper." The water inside the DHW storage tank is constantly maintained at the set temperature.
7 Extended functions 7.15 Setting the operating mode for DHW recirculation The DHW recirculation pump provides an almost instantaneous supply of DHW to the taps. For this, the DHW is circulated by a separate DHW recirculation pump twice per hour for three minutes. Your heating contractor can match this interval to requirements at the service level. You can modify the operating mode of DHW recirculation as follows: AUT z Open flap. Hold down "Heating zone" and select "recirculation" with the dial.
Extended functions 7 7.16 Set the vacation function Using the vacation function, you can heat at a lower room temperature if you are away for a prolonged period. Example: If you are on vacation for the next five days and you want to heat less during that time, operate heating zone 2 with a reduced room temperature of 54 °F (12 °C), for example. USER NOTE Since the vacation function is enabled immediately after completing your entry, you should only enter this function on the day of your departure.
7 Extended functions Hold "Temp" down, and select the desired temperature with the dial (here: "54°F" (12°C)). + The display shows "54°F" (12°C). vacation days 5 Release "Temp" to save your input. The vacation function is enabled immediately after entry. room temp set 54°F You can cancel the vacation function any time by calling it up, as described above, and setting the number of vacation days to "0".
Extended functions 7 7.17 Interrupting and continuing the vacation function You may interrupt your vacation program at any time and provide heat according to the set day and night temperatures. Only the "AUT" LED lights up if a heating zone is in vacation mode. AUT Interrupting the vacation function Press "Day mode". The display shows "day mode always". room temp set 70°F day mode always You may interrupt the vacation function at any time by pressing "Day mode".
7 Extended functions 7.18 Setting the party function This function only applies to heating zones to which the MEC2 has been assigned as a remote control ("MEC heatingzones"). All heating zones without MEC2 continue to operate normally. Enter the length of time the system should only heat to the preset room temperature. Example: You have a party and want to heat for the next four hours to the preset room temperature. Hold down "Day mode" and simultaneously open the flap of the MEC2.
Extended functions 7 7.20 Room temperature calibration USER NOTE This function is only available if the MEC2 is installed within the living space. If the room temperature shown on the display varies from the actual temperature measured with a thermometer, the display value can be adjusted using "CALIBRATING MEC". The factory setting is 0 °F (0 °C). The possible setting range is +9 °F to -9 °F (+5 °C to -5 °C). Example: Displayed room temperature 72 °F (22 °C), actual room temperature 73.5 °F (22.5 °C).
7 Extended functions 7.21 Automatic maintenance message notice If your heating contractor has (with your agreement) enabled the "automatic service call" the maintenance message "notice service call" is displayed at a predetermined time (on a particular date or after so many hours of operation). service call z Open flap. Turn dial. You will see either "service after date required" or "service after run time required". z Inform the heating contractor to have the inspection and service done.
Additional programming options 8 8 Additional programming options This chapter is intended to provide more detailed information to those of our customers who would like to familiarize themselves further with the functions of their heating system. The following pages explain how to change a standard program, if none of the preset standard programs (Æ Chapter 7.11) match your lifestyle. You will learn how to create a new heating program that accurately matches your personal circumstances. 8.
8 Additional programming options z Select a heating zone (Æ Chapter 7.6). Example: Heating zone 2 z Select the standard program for the chosen heating zone (Æ Chapter 7.10). (here: "program selction family") Release "PROG" to enable the selected standard program (here: "family program"). The display shows the selected standard program. family program Monday at 05:30am 70°F Turn the dial once counterclockwise, until "new set point" is displayed.
Additional programming options 8 The display shows the set value. new set point Friday at 10:00am Release "Temp" to save your input. 63°F USER NOTE You cannot freely enter any temperature here. Only the factory-set day and night temperatures are available, which you can, however, modify yourself (Æ Chapter 6.4).
8 Additional programming options 8.1.2 Deleting set points Example: In the "family program" for heating zone 2, the set point "Monday at 10:00pm" (22:00) is to be deleted. Your modified program will be saved under the program name "custom" and the number of the heating zone. Fig. 17 Deleting a set point A "family program" B New program "custom program 2" 1 Day mode 2 Night mode z Select a heating zone (Æ Chapter 7.6).
Additional programming options + family program delete Monday 10:00pm 8 The bottom line shows eight blocks that are deleted in one-second intervals from left to right. When all blocks have disappeared, the set point is deleted. If the buttons are released the delete process is canceled. Simultaneously release "Vacation" and "Display" to save your input. custom program 2 The display shows the next set point.
8 Additional programming options 8.1.3 Deleting a heating phase A heating phase consists of two set points – a start and a stop point. If you wish to delete a heating phase, both set points must be deleted. Example: In the "daytime program" for heating zone 2, you want to delete the Monday heating phase from 11:30 am to 1:00 pm (11:30 to 13:00 h) to create one continuous phase in night mode from 8:00 am to 5:00 pm (08:00 to 17:00 h).
Additional programming options 8 Turn the dial to the start point of the heating phase you want to delete (here: "11:30am" (11:30)). daytime program Monday at 11:30am 70°F Hold down "Time" and turn the dial to the stop point of the heating phase you want to delete (here: "01:00pm" (13:00)). + If you have selected the stop set point of the heating phase you want to delete, the bottom line will show eight blocks that are deleted in one-second intervals from left to right.
8 Additional programming options 8.1.4 Linking heating phases A heating phase consists of two set points – a start and a stop point. To connect two consecutive heating phases, place the stop point of the first heating phase onto the start point of the next phase. Example: Starting from the "daytime program" for heating zone 2, you want to join the Monday heating phase from 11:30 am to 1:00 pm (11:30 to 13:00 h) to the heating phase 5:00 pm to 11:00 pm (17:00 to 22:00 h).
Additional programming options 8 The display shows the stop point to be connected. daytime program Monday at 01:00pm 63°F Hold down "Time" and turn the dial clockwise, until the start point of the second heating phase, i.e. the next consecutive heating phase, is displayed, which you wish to combine with the first heating phase (here: "05:00pm" (17:00)).
8 8.2 Additional programming options Creating a new heating program You may enter up to 42 set points per week and heating zone to create a new heating program. A single set point comprises three details: Weekday, time and temperature. The newly-created program will be saved under "custom program" and the relevant heating zone number.
Additional programming options 8 Enter the first set point (Monday – Friday, 5:00 am (05:00), 70 °F (21 °C)) You can select days individually or in blocks: – Monday – Thursday – Monday – Friday – Saturday – Sunday – Monday – Sunday Hold down "Weekday" and select the desired day or block with the dial (here: "Mon - Fri"). + Release "Weekday" to save your input. new set point Mon - Fri at --- ---Hold "Time" down, and select the desired time with the dial (here: "05:00am" (05:00)).
8 Additional programming options Only after all three details (day/time/temperature) have been set for the new set point will it be automatically saved under "custom program" and the heating zone number (here: "2"). The saving process is not shown on the display. The display shows the blank mask "new set point" for the next set point. new set point -------------at --- ---- z Enter the second set point (Monday – Friday, 9:00 pm (21:00 h), 63 °F (17 °C)).
Additional programming options 8.3 8 Creating a new DHW program You can operate DHW heating either according to the factory settings "program selction heating zone" or according to your own new switching program "program selction custom DHW". USER NOTE With the factory setting "program selction heating zone", DHW is heated 30 minutes prior to the first set point of all heating zones associated with this control panel, and ends when the last heating zone is switched off.
8 8.4 Additional programming options Creating a new DHW recirculation pump program You may operate the DHW recirculation pump either according to the factory settings "program selction heating zone" or according to your own new switching program "program selction custom CR" (CR: recirculation pump).
Modules and their functions 9 9 Modules and their functions All modules are shown here that are or can be installed in your Logamatic 4323 control panel. MEC2 remote control CM431 controller module Modules Tab.
9 9.1 Modules and their functions ZM433 central module (standard equipment level) The ZM433 module controls one supply pump to transfer heat, in case of demand, from external heat sources to the system. This module also controls one heating zone with mixer. The manual switches on the module are only provided for service and maintenance functions. If the manual switches are not set to automatic, a corresponding message appears on the MEC2 remote control, and the fault indicator lights up.
Modules and their functions 9 Supply function Manual switch – supply pump (Æ Fig. 22, [1]) USER NOTE The manual switch should normally be set to "AUT". Positions 0 and 3 (manual mode) are special settings reserved for contractors only. 3: The supply pump is switched on. AUT: The supply pump operates automatically. 0: The supply pump is switched off. The control functions continue to operate. 2 1 Fig.
9 9.2 Modules and their functions FM441 function module (accessory) The FM441 module controls one heating zone and one DHW heating consumer (tank). The manual switches on the module are only provided for service and maintenance functions. If the manual switches are not set to automatic, a corresponding message appears on the MEC2 user interface and the fault indicator lights up. USER NOTE 2 Do not use the manual switches to shut off the installation for temporary absence.
Modules and their functions 9 Heating zone and DHW function Heating zone manual switch (Æ Fig. 24, [1]) and DHW (Æ Fig. 24, [2]): for heating zone: for DHW supply: USER NOTE The manual switch should normally be set to "AUT". Positions 0 and 3 (manual) are special settings reserved for contractors only. 3: The heating pump or tank primary pump is switched on. The mixing valve is switched to zero volt and can be manually operated. The DHW recirculation pump is switched off.
9 9.3 Modules and their functions FM442 function module (accessory) The FM442 module controls two independent heating zones with mixing valve. Several FM442 modules can be used in your control panel. The manual switches on the module are only provided for service and maintenance functions. If the manual switches are not set to automatic, a corresponding message appears on the MEC2 user interface, and the fault indicator lights up.
Correcting faults and troubleshooting 10 10 Correcting faults and troubleshooting Have the faults remedied by your heating contractor immediately. All system faults are displayed on the MEC2 remote control. Report the fault by telephone to your heating contractor. Where necessary, set the module switches according to the instructions in Chapter 11.
10 Correcting faults and troubleshooting 10.1 Simple troubleshooting If no fault messages are displayed on the control panel in spite of cool rooms or cool DHW, there may be an incorrect setting. Observation Possible cause(s) Action Control panel remains dark or does not function ON/OFF switch set to "OFF". Check mains circuit breaker. No power supply. Heating system emergency shut-off switch set to "ON". ON/OFF switch set to "ON". MEC2 incorrectly plugged in (contact problems).
Correcting faults and troubleshooting 10 10.2 Troubleshooting MEC2 message Effect Remedy DHW cold DHW is too cold. Set DHW switch on module ZM433, FM441 or FM445 to manual. Notify heating contractor. remote control fault The control panel works with the last values set on the MEC2 remote control. Notify heating contractor. outdoor sensor fault The heater heats at higher temperatures if necessary and thus ensures a comfortable temperature. Notify heating contractor.
11 Operation in the event of a fault 11 Operation in the event of a fault RISK OF LIFE due to electric shock! WARNING! z Never open the control panel. z In an emergency, switch off the control panel (e.g. with the heating system emergency shut-off switch) or isolate the heating system from the power supply by disengaging the heating system circuit breaker. z Arrange for your heating contractor to rectify any heating system faults immediately.
Operation in the event of a fault 11 11.2 Heating mode with manual switch In most cases, faults are displayed on the MEC2 if they concern the control panel. Please notify your local heating contractor of the fault displayed on the MEC. The heating contractor can provide fast and specific assistance to correct the fault on the basis of your information. If you cannot immediately contact your local heating contractor, you may choose to select manual mode using the manual switch.
11 Operation in the event of a fault Manual mode FM441 and FM442 function modules (accessories) As described on page 75 for the central module, you may also set the manual switches for DHW and/or heating zones of these modules temporarily to 3 manual, should there be a fault. For DHW please note: Before manually operating the primary pump on systems with external heat sources, ensure that the heat source can deliver sufficient heat, otherwise the DHW storage tank may cool down.
Setup log 12 12 Setup log Operating values Input range Factory setting Selection family early morning evening morning Program selection afternoon family midday singles seniors new DHW 86 °F – 140 °F (30 °C – 60 °C) 140 °F (60 °C) Set warm weather shut down (WWSD) temperature 50 °F – 86 °F (10 °C – 30 °C) constant summer constant winter 63 °F (17 °C) Day room temperature 52 °F – 86 °F (11 °C – 30 °C) 70 °F (21 °C) Night room temperature 36 °F – 84 °F (2 °C – 29 °C) 63 °F (17 °C) Vacation
13 13 Index Index A N Adjusted outdoor temperature . . . . . . . . . . . 41 Automatic . . . . . . . . . . . . . . . . . . . . . . 50 Automatic mode . . . . . . . . . . . . . . . .19, 20 B Boiler . . . . . . . . . . . . . . . . . . . . . . . . 5 C Central module . . . . . . . . . . . . . . . . .16, 66 Circulator . . . . . . . . . . . . . . . . . . . . . . 66 D Day mode . . . . . DHW heating . . . DHW storage tank DHW temperature Drawer modules . . . . . . . . . . . . . . . . . . . . . . . . . .
Notes Logamatic 4323 - Technical specifications are subject to change without prior notice.
