Public Altherma by Daikin Altherma Commissioning Service Field Settings
Altherma Service Settings There are several service codes that can be altered to maximise the efficiency of the Altherma system. Each site is potentially different so these settings should be reviewed on an individual basis. The settings can influence various aspects of the control of the Altherma system ranging from end user permission level of the controller to the time period the air source heat pump is allowed to operate and the control of the electrical heaters. We recommend that these settings are considered from initial commissioning failure to do so may result in the system operating inefficiently and potentially consuming too much energy. The following information explains the purpose of each service code and how to make these alterations using the Altherma controller. Page 2
Remote Controller - Entering The Field Set Codes 1 Press the button for a minimum of 5 seconds to enter FIELD SET MODE. 4 A 2 B The SETTING icon will be displayed. The current selected field setting code is indicated (A), with the set value displayed to the right (B). 2 Press the button to select the appropriate field setting first code. 3 Press the button to select the appropriate field setting second code. 1 4 3 4 Press the button and button to change the set value of the select field setting. 5 Save the new value by pressing the button. 6 When finished, press the button to exit FIELD SET MODE. Page 3
Remote Controller Field Settings - User Permission Level There are 3 permission levels on the Altherma controller. Level 1 being full control and Level 3 being the lowest level of control access. You can switch between Level 1 and either Level 2 or 3. Level 1 is factory standard Full control Page 4
Remote Controller Field Settings - User Permission Level There are three possible remote controller button restrictions 2 will restrict 3 will restrict If any of these buttons are pushed then not available is displayed as shown here. To activate or deactivate these settings you need to input the permission level code you require (default is 3)Push and hold buttons Then whilst holding these buttons in you will then need to push buttons and for five seconds. There will be no visible display change on the controller but try pushing the button once then not available will be displayed if you are in either permission level 2 or 3. Page 5
General Overview Field Settings - Auto temperature Setting First code 1 Second code Setting nam e W eather dependent set point Default value Range Step Unit 00 Low am bient tem perature (Lo_A) -10-20 ~ 5 1 C 01 High am bient tem perature (Hi_A) 15 10 ~ 20 1 C 02 Set point at low am bient tem perature (Lo_TI) 40 25 ~ 55 1 C 03 Set point at high am bient tem perature (Hi_Tl) 25 25 ~ 55 1 C -1-00 Low ambient temperature (Lo_A): low outdoor temperature. -1-01 High ambient temperature (Hi_A): high outdoor temperature. -1-02 Set point at low ambient temperature (Lo_Ti): the target outgoing water temperature when the outdoor temperature equals or drops below the low ambient temperature (Lo_A). -1-03 Set point at high ambient temperature (Hi_Ti): the target outgoing water temperature when the outdoor temperature equals or rises above the high ambient temperature (Hi_A). Page 6
Remote Controller Field Settings Weather Dependent Set Point / Heating Compensation Weather dependent set point calculates the space heating set point temperature based on the outdoor temperature. However, the user can set a "shift value". This shift value is the temperature difference between the temperature set point calculated by the controller and the real set point, this can be done by pushing the temperature up and down buttons whilst in the normal screen with the weather dependant set point activated. Target water temperature Remark: Lo_Ti > Hi_Ti 40 C 25 C 00-10 C 15 C Ambient (outdoor) temperature Page 7
Remote Controller Field Settings - Tank Disinfection Mode First code 2 Second code Setting nam e Disinfection function 00 O peration interval Fri Default value Range Step Unit M on ~ Sun, All - - 01 Status 1 (O N) 0/1 - - 02 Start tim e 23:00 0:00 ~ 23:00 1:00 hour 03 Set point 70 40 ~ 80 5 C 04 Interval 10 5 ~ 60 5 m in 2-00 Operation interval: day of the week at which the sanitary water should be heated. 2-01Status: defines whether the function is turned ON (1) or OFF (0). 2-02 Start time: time of the day at which the sanitary water should be heated. 2-03 Set point: high water temperature to be reached. 2-04 Interval: time period defining how long the set point temperature should be maintained. Page 8
Remote Controller Field Settings - Tank Disinfection Mode The disinfection function disinfects the sanitary water tank by periodically heating the sanitary water to a specific temperature Sanitary water temperature High set point temperature High set point temperature (as set on the user interface) Time Page 9
General Overview Field Settings - Auto Restart Setting First code 3 Second code Setting name Auto restart Default value Range Step Unit 00 Status 0 (ON) 0/1 - - - 3-00 Status: defines whether the auto restart function is turned ON (0) or OFF (1). When power returns after a power failure, the auto restart function re-applies the user interface settings at the time of the power failure Note If the power failure maintain longer then 1 hour. The clock and day of the week is reset. Programmed actions will not be lost Page 10
General Overview Field Settings - Backup Heater Setting First code 4 Second code Setting name Backup heater operation Default value Range Step Unit 00 Status 1(ON) 0/1 - - 01 Priority 0(OFF) 0/1 - - 02 Space heating OFF temperature 35 14~35 1 C - 4-00 Status: defines whether the backup heater operation is enabled (1) or disabled (0) - 4-01 Status: decides whether the backup heater & booster heater can operate simultaneously (0), or the booster heater operation has priority over backup heater operation (1) Even the indoor unit is equipped with a backup heater, its operation can still be enabled or disabled Disabling the operation of the backup heater might be desirable in some applications to prevent unnecessary energy consumption and costs Page 11
General Overview Field Settings - Space heating OFF Setting First code 4 Second code Setting name Backup heater operation Default value Range Step Unit 00 Status 1(ON) 0/1 - - 01 Priority 0(OFF) 0/1 - - 02 Space heating OFF temperature 35 14~35 1 C - 4-02 Space heating OFF temperature: When the ambient temperature rises above the value of [4-02], the space heating operation will go in forced thermostat OFF Page 12
General Overview Field Settings - Equilibrium Temperatures And Space Heating Priority Temperatures Setting First code 5 Second code Setting name Equilibrium temperature and space heating priority temperature Default value Range Step Unit 00 Equilibrium temperature status 1(ON) 0/1 - - 01 Equilibrium temperature 0-15 ~ 20 1 C 02 Space heating priority status 0 (OFF) 0/1 - - 03 Space heating priority temperatures 0-15 ~ 20 1 C 04 Set point correction for sanitary water temperature 10 0 ~ 20 1 C - 5-00 Equilibrium temperature status: specifies whether the equilibrium temperature function is enabled (1) or disabled (0) for low outdoor temperatures - 5-01 Equilibrium temperature: below this outdoor temperature operation of the backup heater is allowed Page 13
Remote Controller Field Settings - Equilibrium Temperature And Space Heating Priority Temperature Page 14
Remote Controller Field Settings Equilibrium point Page 15
General Overview Field Settings - Equilibrium Temperatures And Space Heating Priority Temperatures Setting First code 5 Second code Setting name Equilibrium temperature and space heating priority temperature Default value Range Step Unit 00 Equilibrium temperature status 1(ON) 0/1 - - 01 Equilibrium temperature 0-15 ~ 20 1 C 02 Space heating priority status 0 (OFF) 0/1 - - 03 Space heating priority temperatures 0-15 ~ 20 1 C 04 Set point correction for sanitary water temperature 10 0 ~ 20 1 C Page 16-5-02 Space heating priority status: specifies whether space heating priority is enabled (1) or disabled (0) for low outdoor temperatures - 5-03 Space heating priority temperature: below this outdoor temperature, the DHW will be heated by the booster heater only - 5-04 Set point correction for DHW temperature: set point correction for the desired sanitary water temperature, to be applied at low outdoor temperature when space heating priority is enabled
Remote Controller Field Settings - Set Point Correction For DHW Tank 5-04 - will correct the set point whilst the DHW tank is under operation by the booster heater, this is because the booster heater is mounted above the sensor and due to the stratification of the DHW tank DHW water set point temperature Zone Space heating priority Booster Heater Sensor 65 C 50 C User set point (as set on the user interface) Ambient (outdoor) temperature Page 17
General Overview Field Settings DT For Domestic Hot Water Heating Setting First code 6 Second code Setting name DT for sanitary water heating Default value Range Step Unit 00 Start 5 1 ~ 20 1 C 01 Stop 20 0 ~ 10 1 C - 6-00 Start: temperature difference determining the heat pump ON temperature - See illustration - 6-01 Stop: temperature difference determining the heat pump OFF temperature - See illustration (temperature difference based on the Maximum heat pump temperature ) When the DHW temperature drops below the heat pump ON temperature, the heat pump will be turned on. As soon as the DHW temperature reaches the heat pump OFF temperature, the heat pump will be turned off Page 18
Remote Controller Field Settings Temperature Differentials For DHW Heating Setting Set point > Maximum heat pump operation Set point < Maximum heat pump operation set point temperature 6-00 6-01 Maximum heat pump temperature at the sensor in the DHW tank Heat pump OFF temperature 6-00 Maximum heat pump temperature at the sensor in the DHW tank Heat pump OFF temperature Heat pump ON temperature Heat pump ON temperature Example of 6-00 and 6-01 Default of 6-00 = 5 (set to 7 in example) Default of 6-01 = 2 (set to 2 in example) Page 19
General Overview Field Settings Domestic Hot Water Step Length Setting First code 7 Second code Setting name Sanitary water step length Default value Range Step Unit 00 Sanitary water step length 3 2 ~ 4 1 C - 7-00 DHW step length: temperature difference above the DHW set point temperature before the booster heater is turned off Page 20
Remote Controller Field Settings - DHW Step Length Operation DHW temperature Booster heater OFF Temp Booster heater ON Temp User set point temperature Maximum heat pump temp Heat pump OFF Temp Heat pump ON Temp TBH OFF = (TU + [7-00]) TBH ON = (TBH OFF - 2 C) THP OFF = (THP MAX - [6-01]) THP ON = (THP OFF - [6-00]) Booster Heat pump Example of 6-00 and 6-01 Default of 6-00 = 5 (set to 7 in example) Default of 6-01 =2 (set to 2 in example) Heat pump Time Page 21
First code 8 General Overview Field Settings Domestic Hot Water Heating Mode Timer Setting Second code Setting name Sanitary water heating mode timer Default value Range Step Unit 00 Minimum running time 5 0 ~ 20 1 min 01 Maximum running time 30 20 ~ 95 5 min 02 Anti-recycling time 3 0 ~ 10 0,5 hour 03 Booster heater delay time 20 20 ~ 95 5 min Page 22-8-00 Minimum running time: specifies the minimum time period during which Domestic hot water heating should be activated, even when the target hot water temperature has already been reached - 8-01 Maximum running time: specifies the maximum time period during which Domestic hot water heating can be activated, even when the target hot water temperature has not yet been reached - 8-02 Anti-recycling time: specifies the minimum required interval between two H/P Domestic hot water heating cycles - 8-03 Booster heater delay timer: specifies the start-up delay time of booster heater after booster heater thermostat ON
Remote Controller Field Settings DHW Heating Mode Timer Operation The DHW heating mode timer field settings defines the minimum and maximum DHW heating times, and minimum time between two DHW heating cycles. Only applicable for the heat pump. Hot water request request no request DHW heating active not active Time Page 23
General Overview Field Settings Cooling And Heating Set Points Setting First code 9 Second code Setting name Cooling and heating set point ranges Default value Range Step Unit 00 Heating set point upper limit 55 37 ~ 55 1 C 01 Heating set point lower limit 25 25 ~ 37 1 C 7 7 02 Cooling set point upper limit 20 18 ~ 22 20 1 C 03 Cooling set point lower limit 5 5 ~ 18 1 C -9-00 Heating set point upper limit: maximum leaving water temperature for heating operation - 9-01 Heating set point lower limit: minimum leaving water temperature for heating operation - 9-02 Cooling set point upper limit: maximum leaving water temperature for cooling operation - 9-03 Cooling set point lower limit: minimum leaving water temperature for cooling operation Page 24
General Overview Field Settings - Quiet Mode Setting First code A Second code Setting name Quiet mode type Default value Range Step Unit 00 Quiet mode type 0 0/2 - - 01 Status 3 - - - -A-00 Quiet Mode Type: two different types of quiet mode operation can be set A-00 = 0 => Reduced performance can occur When Quiet Mode is activated on the Altherma interface, the priority is given to the outdoor unit operating quietly under ALL circumstances A-00 = 2 => Reduced performance will not occur When Quiet Mode is activated on the Altherma interface, the priority is given to the required performance of the outdoor unit - A-01 Status: Do not change this default setting!!(conflicts during quiet mode operation can occur when default setting is changed)! Page 25
General Overview Field Settings - Solar Setting Simultaneous water heating by the sun and water heating by the heat pump is not possible Default setting C-00-0,Heatpump priority for domestic hot water over solar. This means that, whenever there is a request of the domestic hot water thermostat and domestic water heating is enabled (by the schedule timer or domestic water heating ON/OFF button, heating will be done by the heat pump. In case of solar heating in operation, solar heating will be stopped. This is to avoid shortage of domestic hot water in case the solar radiation is very weak, or solar radiation only became high shortly before domestic hot water demand is expected (e.g. on a cloudy day) Setting C-00-1, when solar heat becomes available, domestic water heating by the heat pump will be (if in operation) interrupted and taken over by the sun Page 26