Regulation for three circuits, types of heating systems: radiator heating, floor heating, preregulation of air conditioning, hot water regulation (24 pages)
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Heating controller USER MANUAL www.ouman.fi XM1674 versio 1.0 ->...
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The H21 is a heat controller for 1 circuit. Wiring and configurating selections define what the controller dis- plays on the display screen. Control knob and OK Basic view 1 3 : 5 1 1 2. 0 2 . 2 0 2 4 S electio n >...
1 USER INTERFACE 1.1 Basic view There are several different levels in H21’s user interface. The most significant measurement information in regulation process’ view is shown in the Basic view. Central factors related to the current heating control are shown in the Basic view. The Basic view will be shown when the controller is in idle state (keys have not been touched for a while).
A l a r m s If the GSM-modem (optional Setting values menu includes room tempera- Alarms Enable accessory) is connected to H21, ture setting and settings related to temperatu- Active alarms > activated alarms can be sent as re drop (weekly schedule, holiday calendar, see Acknowledge all alarms >...
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M1 = Outdoor temp. M2 = H1 Supply water M3 = H1 Return water TE4 = Room temperature M5 = DH supply water temp. M6 = Free measurement M7 = DH Retun water M8 = DHW Supply water M9 = Free measurement TV1 = H1 Actuator H1 Pump control...
2 INPUTS AND OUTPUTS You can see the inputs and outputs linked to the H21. M a i n m e n u Inputs and Outputs > The measurement range of the temperature sensors are -50 ... H1 Control circuit >...
3 SUPPLY WATER CONTROL IN THE HEATING CIRCUITS Regulation of the temperature of supply water is controlled by M a i n m e n u the outdoor temperature. Use of room temperature measure- I n p u t s a n d O u t p u t s ments keeps room temperature more consistent.
Minimum limit = 18°C/ Suppl.w. 3 = 28°C/ Maximum limit = 42°C/ Outd.t. 4 = 10°C/ H21 will make the requested changes and send a new message Suppl.w. 4 = 23°C/ showing the changes made. Suppl.w. (+20) = 20 °C Minimum limit = 18°C/...
3.3 Setting values The regulator has two types of setting values: those that are al- H1 Control circuit ways visible and those than can only be changed using a service H1 Info > H1 Heating curve > code. H1 Setting values >...
3.3.1.1 Weekly schedule H1 Control circuit -> H1 Setting values -> Temperature drop -> Temp. drop Weekly schedule Graph view Weekly programmes have a standard graph view as well as a change view showing the exact time when the new mode com- Temp.
3.3.1.2 Exception schedule H1 Control circuit -> H1 Setting values -> Temperature drop -> Temp.drop Exception schedule You can easily make changes that differ from normal routine use by using the holiday schedule. The date, time and mode Date Time to which heating will be changed in the period in question are Add new >...
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Factory Setting Range Explanation setting --- TUNING VALUES---- P-area 2...600 °C Supply water temperature change at which the actuator runs the valve at 100%. Eg. If the supply water temperature changes 10 °C and the P area is 200 °C the position of the actuator changes 5 % (10/200 x 100 % = 5 %).
Manual electr. > Actuator manual control > When the control mode is manual mechanic, the supply voltage from H21 Manual mech. (voltage controlled actuator) to actuator is cut and the position of the valve can be changed straight from the actuator.
A l a r m s Alarms Enable> Active alarms > In the alarm menu of H21 device, you can check the active alarms Acknowledge all alarms > and what alarms have been active. The number of Alarm history Reset alarm history active alarms will be shown in the right corner of the main view.
Text message use: Send message: Alarm history Alarm history The controller sends a message showing the last alarms. Message is informational. Reset alarm history Alarms > Reset alarm history H21 requests confirmation before deleting alarm history. Confirm Reset alarm history...
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Alarms receivers Alarms -> Alarms receivers A GSM modem can be connected to the H21 for alarm sending as a text message to the alarm receivers. The alarm will be routed to defined alarm numbers (phone numbers 1-5). The alarm will be sent also to backup number (if defined), if the alarm isn’t acknowledged within 5 minutes after...
H1 Heating circuit > Trend logs > Alarms > If you want to connect the H21 unit to an Ethernet network, you System settings > will need an M-Link adapter (additional equipment). System settings Time 17:01 >...
You can delete the message center number one character at a time by pressing the button. SMS PIN: If the SIM card has PIN inquiry in use, H21 device asks you to enter the PIN (default 1234). Entering the code: SMS PIN 1.
NETWOK DEVICE Connected Device type If you are connecting the H21 controller to a network using a 3 / Version Serial number 4G modem, turn on DHCP on the controller. You will automatically WEB user interface On>...
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - NETWORK DEVICE Active The H21 device will be connected to a C port of M-LINK device or as a slave device Device typei to the Modbus RTU bus. After that, you have to activate the ACCESS service from...
The factory setting of lock code is 0000. Approve: Press OK for a number of seconds H21 device asks you to enter the current code. The factory setting of Cancel: Press ESC for a number of seconds lock code is 0000.
System settings). To the memory card > Create a backup, when H21 has been configured and the device- specific settings have been set. If desired, also the factory settings can be restored to the device. All the parameters which are saved in the non-volatile memory will be included in the backup.
Not in use > function line. 7.11 Disable/enable alarms S y s t e m s e t t i n g s -When alarms are enabled in H21, the alarm signal goes on and informa- Lock code Not in use >...
8 CONFIGURATION SELECTIONS Language Change the language of the user interface if you wish. L a n g u a g e English/ English Suomi / Finnish Svenska/Swedish Eesti / Estonian Français/ French Deutsch/German norsk /Norwegian Čeština/Czech Restore backup The latest backup can be restored later if necessary. You can re- R e s t o r e b a c k u p store the backup you saved from the memory card or internal From the device internal memory...
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Select outputs OUTPUTS: Control Selection Setting Connection Running time open 150 s (5...500 s) 57 Open (TR 3) 3-point Running time closed 150 s (5...500 s) Actuator 58 Closed (TR 4) H1 Actuator 24 VAC 0...10 V 2...10 V Running time open 150 s (5...500 s) 10...0 V 68 Voltage control (Y2) 10...2 V...
TEXT MESSAGE QUICK GUIDE If a GSM modem is connected to the H21 you can communicate with the controller by text message using command words. Send the following text message to the controller: KEY WORDS. You can send the text message question mark to the controller to get a list of key words.
SMS. If M-LINK adapter is taken in use in H21, it’s not possible to use GSM-mode simultaneously. The modem has a fixed antenna that can be changed to an external antenna with a 2,5m cord (optional equipment) if needed.
+358 424 840 1 www.ouman.fi Product name: Ouman H21 Models: Ouman H21 8M Version: Valid: 2024/03 It is possible that the regulator has been updated later. In the event of a fault, check the current information from the controller (System settings ->...
Total current of 24 VAC output and triac-outputs max. 1A. Pump control contacts (84,85) Contacts for circulation pump Pumps are controlled by a switch on the top of the H21 device. Relay max. load 3A. Protective earth terminal (73-78) Protective earth terminal block for 230V devices.
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