OUMAN EH-203
RELAY 1 CONTROL SELECTION
OUMAN EH-203
EH-203 has two 230VAC/6A relays. Relay 1 is a break before make
contact relay and relay 2 is an on/off relay. The relays can be used for many
different purposes. If the relay has been selected for time control use, it
can be labeled according to its use using the text editor (e.g., sauna, out-
side door etc.). Relays are time controlled in the regulator's clock functions
(p. 15). The time program can be bypassed with a GSM text message and
the relay can be timer controlled or set in a continuous ON or OFF mode.
H1 Valve regul
H1 Valve close
H2 Valve regul
H2 Valve close
Relay1 ctrl sel
Not in use
Pump sumr stop
Time program
Time/Outd.temp
230V actuator
Temp operated
Burner control
Time program
Time/Outd. Temp
Relay 1 is not being used.
Press the
button to move the cursor to the control mode you want to use.
Press
The
character indicates which control mode is being used.
OK
.
Explanation:
On the display:
Not in use
Connection
information:
The
tem
a few
The regulator time controls any electric apparatus using the relay, e.g., a sauna stove, door locks.
Timing programming and control mode selection is done in clock functions (p. 15). In the timing
program's "ON” mode the relay is activated. The control mode can also be changed using a GSM
telephone (see p. 19-20).
The regulator controls relay 1 by time. In the "ON" mode the relay is activated. The "ON" mode is
prevented if the outdoor temperature is colder than the relay 1's set outdoor temperature limit. (See p.
29). Timing/ outdoor temperature control is suitable for exhaust fan control
When you have reserved relay 1 for 230V actuator control, the regulator automatically also reserves
relay 2 for 230V actuator control if relay 2 is free. If relay 2 is not free, the regulator first requests to free
relay 2 for 230V actuator control. After this you can begin using 230VAC 3-point control in the "actuator
selection" mode (see page 25)
Control
73
75
74
1/1 speed ("ON" mode)
½ speed ("OFF"-mode)
230V actuator
73
L
74
75
When the relay is inactive (timing program "OFF" mode or no electricity
to actuator) the space between contacts 73-74 is closed in the relay.
Select
H1 Maint mode
Relay1 control
Pump sumr stop
When the relay is active (timing program "ON” mode)
the space between contacts 73-75 is closed in the relay.
Pump summer stop:
For each individual regul. circuit,
select whether the valve will continue regulat. or whether
the valve will close when the pump stops. When you exit
from this mode the regul. asks for the outdoor temp. at
which the regulator stops the pump. The outdoor temp. limit
can also be adjusted in settings, p. 7 pump stop.
Temperature controlled function:
The factory setting for measurement 11 in temp. cont-rolled
functions is 55 °C (setting range 0 ... 100 °C) and the
hysteresis is 3°C (setting range 1 ... 10°C).
Time and temperature controlled relay:
Set the outdoor temperature (when the temp. drops) at
which the clock is prevented from effecting relay 1's
function. The outdoor temperature limit can also be set in
special maintenance settings (see p. 29).
The regulator controls relay 1 according to meas. 11. The relay is active when the temperat. rises to the
setting (73-35 closed ) and released (73-74 closed) at the end of the set hysteresis (setting - hysteresis).
E.g., a cooler's compressor or a fan can be controlled with a temperature controlled relay. The function
can be selected when measurement 11 is connected.
Temp operated
Time controlled relay
:
You can label the relay according to
its use. Move the cursor to: Give new label and press
Use of the text editor is presented on page 8.
OK.
Burner control:
The factory setting at which the burner
starts up is 70°C (setting range 5…95°C) and the hysteresis
is 3°C (setting range 1…10°C).
The regulator controls the relay according to the boiler water temperature (meas. 10). The relay is
activated at the setting (73-75 closed) and the burner starts up. The relay is released (73-74 closed)
and the burner shuts off when the boiler water temperature reaches the "setting” + "hysteresis”
temperature. The function can be selected when measurement 10 is connected.
Burner control:
ADDITIONAL INFORMATION ABOUT RELAY CONTROLS:
26
1
2
3
4
5
HeatPump contrl
Auto
On
Off
1
2
3
4
5
Name change
R1 Control
Give new label
Outd.t.lim
°C
-15
R1 Time/Outd.t.
Setting
°C
Hysteresis
°C
55
3
R1 Temp. lim.
Burner control°C
Burner ON
Hysteresis
70
5
Select Auto to put summer stop into use. The pumps stop (relay 1's space 73 and 74 opens) and the
selected valves close when the outdoor temperature is warmer than the “pump stop” setting. During a
stop period the pump/pumps runs(run) for a few minutes every week to prevent them from getting stuck
(interval use).
Select ON for the pump to run continuously (73-74 closed).
Select OFF for the pump to stop (73-75 closed).
HeatPump contrl:
Auto
On
Off
