6 720 811 153-00.
| Contents Contents 1 Explanation of symbols and safety instructions . . . . 3 1.1 Guideline to symbols . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 Product Information . . . . . . . . . . . . . . . . . . . . . . . . 2.1.1Control types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1.
Explanation of symbols and safety instructions | 3 1 Explanation of symbols and safety instructions 1.1 Guideline to symbols Warnings Warnings in this document are identified by a warning triangle printed against a grey background. Keywords at the start of a warning indicate the type and seriousness of the ensuing risk if measures to prevent the risk are not taken.
| Product Description – Isolate all poles and secure against unintentional reconnection. – Ensure the system has been disconnected from the power supply. ▶ Never connect the product to line voltage. ▶ Also observe the connection diagrams for other system components. Handing over to the operator Installing contractor - Please train the end user in proper use of this product. ▶ Explain operation – especially all safety-related actions.
Product Description | 5 temperature influence). Simple and optimized variants are available. In the simple outdoor reset control ( ) the heating curve is a straight line. In the optimized outdoor reset control ( ) the heating curve is an actual curve. The relationship between the outdoor temperature and the supply temperature is therefore very precise. Supply temperature control and output control are available for room temperature-dependent control.
| Product Description 2.2 Important instructions for use WARNING: Risk of scalding! ▶ If hot water temperatures are set above 140 °F (60 °C) or thermal disinfection is switched on, a mixer must be installed. 2.3 Scope of delivery 1 B U S NOTICE: Risk of damage to the floor! ▶ Radiant floor heating must be installed only as a heating zone with mixer and an additional temperature switch to protect the floor from overheating, by delivering too hot supply water.
Installation | 7 Technical Data 3 3/4" 95 mm 2.4 63/64" 25 mm 3 3/4" 95 mm Fig. 4 6 720 811 153-08.1O Dimensions Dimensions (W × H × D) 3 3/4" × 3 3/4" × 1 5/16" (95 × 95 × 33 mm) ( Fig. 4) Rated voltage 8 ... 16 V DC Nominal current 6 mA BUS interface EMS (2-wire BUS) Control range 41 ... 86 °F (5 ... 30 °C) Permissible ambient temperature 32 ... 122 °F (0 ... 50 °C) Protection class III Protection IP20 Table 2 2.5 1 5/16" 33 mm 2.
| Installation • • The installation location (= reference room) must be suitable for controlling the zone ( Fig. 5, Page 8). The user interface must be installed on an interior wall. Do not place obstructions within 2 1/2' (0.75 m) below CRC200. ≥ 4' (≥ 1.2 m) 2' (0.6 m) If there is no suitable reference room, we recommend changing the settings to a purely outdoor temperature dependent control. ≥ 3 1/4' (≥ 1 m) 2 1/2' (≥ 0.75 m) • 6 720 811 153-03.1O Fig.
Installation | 9 3.2 Installation Maximum total length of the BUS connections with AWG18 (0.75 mm2): 492 ft. (150 m) The installation surface on the wall must be flat. ▶ Install the base on a wall. ( Fig. 6). 18-2 AWG (2x 1mm²) 1/4" (6.35 mm) Fig. 6 3.3 1/4" (6.35 mm) 9/64" (3.5 mm) ▶ If several BUS users are installed, maintain a minimum clearance of 4" (100 mm) between the individual BUS users. ▶ If several BUS users are installed, connect the BUS users in series or in a star pattern.
| Installation 3.4 Attaching or removing the user interface Attaching the user interface 1. Attach the user interface at the top. 2. Snap the bottom of the user interface into the base. Removing the user interface 1. Push the knob on the underside of the base. 2. Pull the bottom of the user interface forwards. 3. Remove the user interface by lifting upward. 3. 1. 1. 2. 1. 6 720 809 984-06.1O Fig. 8 Attaching the user interface 6 720 821 651 (2017/05) Fig. 9 2. 6 720 809 984-07.
Controls | 11 4 Controls 1 2 5 3 4 6 720 809 984-40.1O Fig. 10 Controls Item Element Designation Explanation 1 Dial ▶ Turn to change a setting value (e. g. temperature), or select from among the menus or menu items. ▶ Press to open a menu or menu item, confirm a set value (e. g. temperature) or a message. 2 auto auto button ▶ Press to activate the automatic mode with the time program.
| Commissioning 5 Commissioning ▶ First make all electrical connections and then carry out the commissioning. ▶ Observe the installation instruction for all components and assemblies in the system. ▶ Switch on the power supply only after all modules are coded. ▶ Set the heat source to the maximum supply temperature and DHW temperature needed and activate the automatic mode. ▶ Switch on the system. Commission the user interface as shown in Table 4. 5.
Commissioning | 13 Basic settings Following automatic configuration, the display switches to guided system configuration. Which settings are available during guided system configuration depends on the installed system. While in guided system configuration you can press the Back button to switch to the previous menu item. A flashing display means you should turn the dial to change the setting or press the dial to confirm the shown setting.
| Switching off power Basic settings Available only when outdoor sensor is connected and Frost protect is set to by Outdoor Temp or Room - Outside. Frost thresh. appears on the display. You can set the threshold outdoor temperatur for frost protection. For further details see table 9. ▶ Press the dial. ▶ Turn the dial to change the temperature. ▶ Press the dial to switch to the next setting. Heating Start appears on the display. ▶ Press the dial. ▶ Turn the dial to select YES and press the dial.
Main menu | 15 7 Main menu Further information on operation/navigation in the main menu can be found in the operating instructions. ▶ If the standard display is active, press the menu button briefly to open or close the main menu. ▶ Turn the dial to select a menu item or change the value of a setting. ▶ Press the dial to open the selected menu item, activate the input field for a setting or confirm a setting. Main Menu Heating Holiday Settings Temperatures Holiday Prog.
| Service menu 8 Service menu ▶ If the standard display is active, press and hold the menu button for about three seconds until the service menu appears in the main menu. ▶ Press the dial to open the already highlighted service menu . Main Menu ▶ Turn the dial to select a menu item or change the value of a setting. ▶ Press the dial to open the selected menu item, activate the input field for a setting or confirm a setting. PID charact. Room Temp. Service Opt.
Service menu | 17 8.1 System data menu The heating system is configured automatically or manually in this menu. With automatic configuration, important data are preset. Menu item Default setting Control range Functional description HC assignment 1 1 ... 8 Number of the assigned heating zone Auto-Config. NO NO | YES NO: Manual configuration of the system YES: Automatic system configuration, detects connected modules and temperature sensors and presets important data. Pump conn.
| Service menu Menu item Default setting Control range Functional description Min.outs.temp ( ) 14 °F ( – 10 °C) – 31...50 °F ( – 35...10 °C) Minimum outdoor temperature is the outdoor design temperature used in the heat loss calculation; only available when an outdoor temperature sensor is connected and outdoor reset mode is enabled. ON | OFF This setting is only available when an outdoor temperature sensor is connected and outdoor reset mode is enabled.
Service menu | 19 8.2 Heating zone menu Settings for the heating zone are made in this menu. With automatic configuration, important data are preset. Afterwards, only the relevant menu items appear in this menu. Example: In case of outdoor reset control, the menu item for room temperature-dependent control is not displayed. NOTICE: Risk of damaging or destroying the screed! ▶ If radiant floor heating (Low Temp.) is installed, observe the maximum supply temperature recommended by the manufacturer.
| Service menu Menu item default setting Room Feedback 6 °F (3 °C) ( ) Control range Functional description OFF | 2 ... 18 °F (1...10 °C) The outdoor reset control functions independent of the room temperature. The higher the setting value, the greater the influence of the room temperature on the heating curve. Contin. heat ( ) OFF OFF | – 22...50 °F ( – 30...10 °C) At this set outdoor temperature, setback no longer occurs. The system operates in the heating mode to prevent greater cooling.
Service menu | 21 With an outdoor temperature-dependent frost threshold temperature ( ) with or without the effect of room temperature , the following applies: • If the outdoor temperature exceeds the set threshold temperature by 2 °F (1 K / °C) and there is no heat demand from the heating system, the heating pump switches off. • If the outdoor temperature drops below the set threshold temperature, the heating pump switches on (system frost protection).
| Service menu Optimized heating curve The optimize heating curve (Control type: External opt.) is a curve that curves upward and is based on the precise correlation between the supply temperature and the relevant outside temperature ( ). C TVL F 0 +10 140 -10 60 1 122 50 40 86 3 68 +68 +50 +32 +14 TA 140 122 104 30 86 20 68 +68 -4 F 0 +10 60 4 C 50 1 40 30 5 20 +50 +32 +14 TA -4 F 6 720 811 135-29.
Service menu | 23 Simple heating curve The simple heating curve (Control type: External simple) is a simplification of the curved heating curve as a straight line. The straight line is described by two points ( ). Minimum outside temperature TA,min Low Temp. heating High Temp heating 14 °F (–10 °C) 14 °F (–10 °C) Base point 77 °F (25 °C) 77 °F (25 °C) End point 113 °F (45 °C) 167 °F (75 °C) Maximum supply temperature TVL,max 118 °F (48 °C) 167 °F (75 °C) Table 8 8.
| Service menu 8.4 Info menu Heating system settings and measurements are displayed in this menu. No changes can be made. Menu item Possible values Description Outdoor Temp. ( ) – 40...122 °F ( – 40...50 °C) The currently measured outdoor temperature is available only if an outdoor temperature sensor is installed. ON Burner operating Appl. oper. OFF Burner not operating Appl.set sply 68...194 °F (20...90 °C) Supply temperature required at the heat source (set temperature) Appl.act.
Service menu | 25 8.5 Maintenance menu Service-relevant settings are made in this menu, e. g. deleting the list of faults after all faults have been rectified in the course of service. If the service display is set directly at the heat source on the basis of the run time or burner hours, the setting Maint.message appears under ON, but the Maint. date cannot be set. Menu item default Control range Functional description settings Maint.message OFF ON | OFF Maint.
| Troubleshooting 9 Troubleshooting A fault appears on the display of the user interface. The cause can be a fault on the user interface, in a component, in an assembly or on the heat source. The instructions belonging to the affected component, assembly or heat source used and especially the service manual with detailed fault descriptions contain additional information on troubleshooting. Many heat source faults do not appear on the display of the user interface.
Fault code Subcode Troubleshooting | 27 Cause or fault description Testing sequence/Cause Measure A61 1005 System configuration not confirmed ... A68 (A61 = Heating zone 1; ... A68 = Heating zone 8) System configuration not completed Configure system completely and confirm A61 1010 No communication via BUS connection EMS ... A68 (A61 = Heating zone 1; ...
Fault code Subcode 28 | Environmental protection/disposal Cause or fault description Testing sequence/Cause Measure A61 1051 External room sensor not available ... ... A68 1058 (A61 = Heating zone 1; ... A68 = Heating zone 8) Wrong configuration in the controller Change to No in service menu (external room for external room sensor.
Setup log (Service menu/contractor) | 29 11 Setup log (Service menu/contractor) _ _ _ Table 14 Enter the ID number on the backside of the user interface here. Removal from wall plate has to be done to look at the ID. Customer/system user Installer ........................................................................................ ........................................................................................ Date commissioned: Menu item Selection System data (for details see Table.
| Index Menu item Selection Heating zone (for details see Table. 7, Page. 17) Design Temp °F( °C) Base point °F( °C) End point °F( °C) Max. Suppl.T. °F( °C) PID charact. Fast Opt. pump run NO Room Feedback Slow YES K Contin. heat OFF Frost protect OFF Frost thresh. DHW Priority Medium | °F( OFF °F ( by Outdoor Temp °C) by Room Temp. Room - Outside °C) ON DHW Max. DHW Temp °F( °C) Maintenance Maint. date Table 15 Setup log Index A Accessory .
Index | 31 H Heat source operating status .........................................24 Heating curve ..............................................................21 – Radiant floor heating .................................................22 – Radiator ...................................................................22 Heating pump (function test) .........................................23 Heating system ...................................................... 17, 21 Heating zone ...........................
