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Relay control   

Two different temperatures are compared, e.g., the temperatures of the solar collector and ac-

cumulator.   When the temperature difference is large enough, e.g., 10 °C, the solar collector’s 

circulating pump is switched on. When the temperature difference drops to, e.g., 3 °C, the cir-

culating pump is switched off.  

Relay control is switched on (ON) when the valve opens to the set setting. Relay control is 

switched off when the valve position is at the OFF setting. The present actuator position and 

relay mode can be seen from the controller’s display. 

Select the energy mode according to H1 control valve’s control information. 

Relay use

Explanation

Other controls -> Relay control

   > Other controls > Relay control

Relay control           Accord.  to  H1  valve position    

Control mode                                               Automatic>
Valve position where  relay is active            95%  > 
Valve position where relay is released        90%  >
H1  Valve position                                                    85%
Relay control mode                                                       OFF

   > Other controls > Relay control

Relay control        Accord. to the temp.  difference     

     

Control mode                                                      Automatic>
Temp. of solar collector  (A)                                   68.3°C  >
Temperatur of accumulator  (B)                             55.4°C >
Temp. diff.  (A-B) where relay is active                10 °C   >  
Temp.diff. (A-B) where relay is released              3 °C   > 
Relay control mode                                                              ON

Relay control according to the temperature difference:

Relay control according to the H1 Valve position:

Example: The water in the boiler is first warmed using inexpensive energy (e.g., air-to-water heat 

pump) When EH-800 has almost completely opened the control valve (e.g., 95%) the relay is activa-

ted (ON) and the oil burner receives a running permit. When the heating need decreases the control-

ler starts closing the valve. The oil burner’s running permit is inactivated when the valve has closed 

to the point at which the relay switches to the OFF mode (e.g., 90%).   

0 %

100%

90%         95%

Valve position

Oil burner

running permit

Relay ON

Relay OFF

   Other controls > Relay control

Relay control                                                General alarm    

     

Relay control mode                                                         OFF

When any of the alarms is activated in the device, also the sum/common alarm is activated. 

The common alarm does not indicate, which alarm in the device is active. When any of the 

alarms is unacknowledged, the relay is active.

An example: If EH-800 is installed in a separated room, the information of the controller`s alarm can 

be transmitted to the accommodation by connecting e.g. an indicator lamp or a siren to the relay. 

When the controller alarms, the indicator lamp or the siren indicates the alarm.

General alarm:

Summary of Contents for EH-800

Page 1: ...1 OUMAN EH 800 Heating controller USER MANUAL...

Page 2: ...drop Pre increase Summer stop see p 15 Summer function Control command indicates what determines the temperature level Time program Home away H A Room temperature Outdoor temperature Temp of water en...

Page 3: ...00 initial setup What to do if there is a fault Index Technical information 4 5 6 6 7 8 10 11 13 14 14 15 18 18 19 20 20 21 22 22 23 26 26 28 29 30 31 32 Fine adjustment Heating curve settings S t pii...

Page 4: ...red direction and press OK to confirm Fine adjustment settings can also be inspected and changed in set tings see p 46 If outdoor temperature changes effect the room temperature the heating curve s se...

Page 5: ...ually do not have to be changed The heating curve needs to be adjusted if the room tempera ture does not remain even when the temperature is below ze ro and falling If the room temp drops make the cur...

Page 6: ...d Valve position Cascade valve control Outdoor ave temp prev day Delayed outdoor temp measurement Delayed room temp measurement Measurement Range Measurement information The measurements menu displays...

Page 7: ...ature levels You can also check outdoor temperatu res from the trend Basic menu Measurements Press OK at measurement information H1 supply water 28 01 08 26 19 34 7 C 5 h 38 28 The controller automati...

Page 8: ...temperature according to the heating curve For example if you see a temperature drop in the supply water info you can determine which settings may be incorrect e g mini mum or maximum limit settings...

Page 9: ...it set for the supply water and 20 C outdoor temperature effect the mi nimum limit Effect of the return water limiting functions on the supply water If the return water temperature drops below the low...

Page 10: ...rature info Delayed room temp measurement Room temperature setting Effect of fine adjustment Effect of potentiometer Time program effect on room temp Home Away control by switch Home Away control by S...

Page 11: ...C see room temperature setting ran ge min max p 47 in special maintenance settings Amount of temperature drop set by the user factory setting 6 C with radiator heating 2 C with floor heating If room...

Page 12: ...rage Supply water temperature control occurs on the basis of themeasurementoftheaverage Thefactorysettingfortheradiatorheatingdelayis2hoursandin floor heating 0h the delay is not used If the temperatu...

Page 13: ...via a mobile phone the that you give represents the combined positions of the valves Examples 100 both valves complete ly open 50 the valve connected to EH 800 is closed and the cascade control valve...

Page 14: ...trol command affects both H1 and H2 control circuits Key words Home Away The Home Away control is only in effect if the controller is on automatic control When you send a Home or Away message the cont...

Page 15: ...the accumulator When the boiler temperature drops below the setting the amount of the hysteresis the charging pump is switched off 2 The controller switches on an additional heat source e g an electri...

Page 16: ...active 10 C Temp diff A B where relay is released 3 C Relay control mode ON Relay control according to the temperature difference Relay control according to the H1 Valve position Example The water in...

Page 17: ...ol is activated Sunday Friday from ten p m to six a m Relay control according to the time program Relay use Explanation Other controls Relay control Relay control Accord to the time program Control mo...

Page 18: ...hours and minutes separately and press OK Press OK and then turn the control knob to set the temperature le vel and press OK Press OK at each week day to set the days of the week Press OK at the end o...

Page 19: ...a certain length of time is made using the exception calendar as follows Move to exception calendar and press OK Press OK at the Add new row Press OK and set the time date and time for the tempe ratur...

Page 20: ...ck functions Time and date If there are a number of unacknowledged alarms in the controller acknowledge the alarm appearing on the display and the previous alarm will appear When all possible active a...

Page 21: ...be labelled 0 95 C 0 95 C 0 95 C 0 95 C 0 95 C 0 95 C 0 95 C 1 20 C 0 120min 0 95 C 0 95 C 0 95 C 0 95 C 0 95 C 0 95 C 0 95 C 0 95 C 8 0 C 5 0 C 35 C 8 C 5 C 90 C 50 C Notinuse 60min 4 C 95 C 40 C 95...

Page 22: ...can be sent to a mobile phone immediately after the alarm has arrived The controller first sends information about the alarm to alarm number 1 and if the alarm is not acknowledged in 5 minutes the co...

Page 23: ...alarms have already been programmed into the controller Select Alarm to use alarms that can be freely la belled 2 Give the alarm a descriptive label Use the control knob to select a letter and press O...

Page 24: ...to make a Temperature drop Setting the amount of temperature drop see p 11 The home away switch affects cont rol circuits H1 and H2 The controller uses return water meas information for control and c...

Page 25: ...llet and chip boilers The VMR100 spark detector and the Atexon extinguishing system have been tested to be controller compa tible When the spark detector has detected a spark or glowing particle the c...

Page 26: ...summer The curve is equivalent to the C curve of the EH 80 controller Radiator heating normal this heating mode is a factory setting Radiator heating steep curve for a location requiring higher than n...

Page 27: ...and the maximum limit is 95 0 C The outdoor temperature measurement can be taken into use device settings measurement initiation Device settings H1 Process settings Heating mode Concrete floor drying...

Page 28: ...iven below for the most common mixing valves on the market ESBE 3MG The slide of the valve can be turned 360 Turn the valve all the way to the left 9 o clock The tapered side of the valve axle always...

Page 29: ...mperatures for outdoor temperatures 20 10 0 10 and 20 C A 5 point curve offers even more possibilities to make a curve of just the right shape to exactly meet the heating need of your facili ty A 5 po...

Page 30: ...confirm Press OK to move to the next square Press ESC to return to the previous square Press OK for a number of seconds to confirm the name Press ESC for a few seconds to cancel the name change OK Na...

Page 31: ...roller The other source of heat can be e g an oil burner Cascade control Device settings H1 Process settings Cascade control Cascade control Not in use In use actuator control 0 10V In use actuator co...

Page 32: ...n use Hybrid heating can not be taken into use if 1 Cascade control has been taken into use see Device settings H1 process settings Cascade control 2 H2 circuit is in use see Device settings H2 Proces...

Page 33: ...alve is driven to wards Closed position and thus the flow gets weaker and thetemp differencegetsbigger Thissettingdeterminesthe minimumvalvepositionwhenthepumpisrunning The charge pump is relay contro...

Page 34: ...ditional information about different heating modes on p 26 When the H2 control circuit is taken into use the controller automatically reserves regulators s measurement channel 5 for the H2 supply wate...

Page 35: ...Closed Setting at which the relay is active 55 C min 0 max 95 Device settings Relay control Relay control According to the temperature Meas that controls the relay Boiler temp Setting at which the rel...

Page 36: ...evice settings Temperature difference A B when the relay is active ON The right temperature difference between the solar collector and boiler could be e g 10 C When the temperature of the solar collec...

Page 37: ...ring flushing 20 V2 valve position during flushing 20 Flushing day Monday Flushing time 08 00 It pays to take the valve flushing function into use when there are im purities in the fluid circulating i...

Page 38: ...ettings Message centre numbers PIN Approve Press OK a few seconds Cancel Press ESC a little file Device ID Approve Press OK a few seconds Cancel Press ESC a little file Message center number Approve P...

Page 39: ...o EH 800 Home ALARM Overheating alarm Supply water temperature 50 0 MO 23 3 2009 13 31 Send the message back to acknowledge the alarm ID 07137 Options Back Send the same message back to the controller...

Page 40: ...6 In the EH 800 controller go to device settings Network settings menu 7 In item 4 write the IP address on the IP address row of the configure window Add ten to the last number series row e g 10 2 74...

Page 41: ...man 3G solution all information moving in the internet is shielded in both directions Ouman 3G connections are made for building technology data transfer in which normal internet browsing is blocked...

Page 42: ...you can t make changes to controller settings It is good to take the locking code into use for example when the controller is in a place where anyone could change control ler settings Locking prevents...

Page 43: ...locations to control Device settings Type information Write in the location field e g the address of the device or a telepho ne number from which the owner or caretaker can be reached You can use the...

Page 44: ...ation Measurements Room temperature info Supply water info Ouman Alarms Type information Informative messages The Ouman key word gives you temperature measurement information outdoor temp supp ly wate...

Page 45: ...the controller to a nominal tempera ture Text message To EH 800 Home AWAY Options Back Away Text message To EH 800 Home HOME Options Back Home Usetheawaycontrolcommandwhenyouwant to switch to a tempe...

Page 46: ...temperature deviation x room compensation ratio amount A longer room com pensation adjustment time is used in massive stone houses or houses with floor heating installed on a concrete floor I control...

Page 47: ...setting The purpose of this function is to decrease the danger of water pipes freezing during extremely cold weather and to ensure that after a temperature drop period the temperature can rise to a n...

Page 48: ...room sensor is not in use the fine adjustment effects the curve as a parallel shift The steepness of the curve do es not change The user set outdoor temperature limit at which the effect of fine adju...

Page 49: ...measurement If you want other uses for the return water measurement you can change the highest allowed return water temperature The controller begins lowering the supply water temperature after the m...

Page 50: ...sed when autumn drying is in use room sensor re quired The amount the supply water temperature is raised when autumn drying is in use Autumn drying is activated when the average temperature in a 24 ho...

Page 51: ...tector can be connected to the Atexon extinguishing unit Surface thermostat C01A In houses with floor heating it is important to ensure that excessively hot water that could damage structures or surfa...

Page 52: ...ion 3 must be changed 3 Fasten the adapter to the axle of the valve using the tightening band so that the star shaped piece is straight and the adapter s teeth are not in the same place as the tapered...

Page 53: ...rotective sleeve Put the connec tion space s protective cover back into place 24V AC DC power supply outdoor sensor cord and connection box Is attached to the controller Connected to the controller s...

Page 54: ...to confirm Set the minutes and press OK to confirm Time and date setting Time 19 44 hh mm Give the hours Kellonajan asettaminen Date Ke24 02 2009 dd mm yyyy Give the date Turn the control knob to go...

Page 55: ...when it turns counterclock wise the valve direction in the controller s menu must be changed to open in the counterclockwise direction additional information about valve direction see on p 28 HINTS F...

Page 56: ...e valve so that the valve can open completely see p 28 The valve must be able to move freely 90 At the same time check that the valve direction is correct If the valve is stiff ask an HVAC installer t...

Page 57: ...57...

Page 58: ...58...

Page 59: ...unction 47 Pressure alarm 24 Process settings 26 32 Pump alarm 24 Pump interval use 15 Pump summer stop 33 15 12 Quick guide for temperature control 4 5 and separate instructions Radiator heating 2 26...

Page 60: ...valves using the mounting kit included Mounting kits for Esbe VRG and Belimo R4 D K valves as optional equipment width 172 height 91 depth 73 900g 0 50 C storing 20 70 C 89 336 EEC 92 31 EEC EN 61000...

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