OUMAN EH-203
GSM- FUNCTIONS
OUMAN EH-203
When a GSM modem is connected to EH-203, a GSM telephone can be used to communicate with the regulator
via text messages.(installation p. 35). Almost all of the user level functions that are mentioned in this manual can
be carried out using a GSM phone. These include measurements, settings, heating curve settings, supply water
information and the regulator's operating mode. Clock programs can be bypassed permanently or for certain
periods of time. Alarms are also directed to a GSM phone. They can be acknowledged by sending the alarm
message back to the regulator.
KEYWORDS
Send the following text message to the regulator:
If the regulator has a device ID (p. 35,36), always write the device ID before the
key word (e.g., TC1 KEYWORDS). The regulator will send a list of key words via
text message, which will help you obtain information about how the regulator
operates. Each key word is separated by a / character.
Note! The key word DH Energy does not appear when using the key word inquiry.
Send a text message to the regulator using key words that it provides you. The
regulator recognizes only one request at a time, so write only one key word /
message. You can write the key word using capitals or small letters. (If the
regulator has a device ID (see p. 35,36), write the device ID in front of the key
word.)
Receiving information from the regulator:
Operating the regulator using a GSM:
Acknowledging alarms:
KEYWORDS:
Measurements/
Heating
curves/
Relays/
H1
Settings/
H2
Settings/
DHW
Settings/
H1
Operat.mode/
H2
Operat.mode
H1
Info
water
H2
Info
water
Heating curves
Keywords:
Instruction for adjusting settings
H1
Curve:
(-20=
;
0=
;
+20=
)
58
41 19
Ouman
house
Alarm:
Dig1/
W
astewater
tank
The regulator answers your request by sending the desired information.
With the GSM phone you can adjust heating curve settings, user level
settings, the regulator's operating mode, or time-controlled relay operation.
Send the regulator a text message. Using key words, request information
about the function whose settings you want to adjust (or obtain the
information from your telephone's memory). Adjust the settings in the text
message that the regulator sent. Send a text message with the new
settings to the regulator. The regulator will make the requested
adjustments and acknowledge them by sending back a text message with
the new settings.
You can acknowledge an alarm with a GSM by sending
the same message back to the regulator.
Write the desired supply water temperature in place of
the previous setting in the text message "adjust” mode.
Write the setting in place of the previous setting
Put a star (* ) in front of the operating mode which you
want to start using. When you select manual operating,
regulator sends information about the supply water
temperature and valve positions (0 - 10V controlled
actuators). Attention! When using electric manual control,
special caution has to be taken because of danger of
freezing and overheating. During the valve flush function,
the regulator first opens and then closes the valve. After
this automatic regulation continues. The purpose of this
function is to clean out a plugged up valve.
A GSM can be used to control the relay only if the relay
is being time controlled. Place a star (* ) next to the
control mode that you want to begin using. In time control
you can also set the length of time it is in effect (range
0…999 min).
H1 Operat.modes
COMMUNICATING WITH THE REGULATOR USING A GSM:
Measurements
H1
Supply=52/
H1
Room=21.2/
H1
Ret.water=28/
Outdoor=-15/
H2
Supply=48/
Exhaust=25/
H1
Settings
Autumn
dry=
Room
temp.=
Temp
drop(w)=
Min.
limit=
Max.
limit=
Room
compens.=
Pre-increase=
21.5
15
70 4
0
2
/
/
/
/
/
/
/
0
Relays
H1 Settings
H1
Operat.modes:
Automatic/
Nominal
oper
./
Reduced
oper
./
Manual
electr
.
open=
%/
Manual
electr
.
closed=
%/
Valve
flushing/
*
000
000
RELA
Y1:
(T
ime
program/
ON/OFF/
Timer
ON
min/
Timern
OFF=
min)
59
*
59
20
If a district heating energy
meter is connected to the
controller, measurement
information from the energy
meter can be obtained by
using the key word
DH Energy
