6
EH-105
Additional information about measurements
EH-105
Other measurements and calculations:
HRU effic.
SF air
EF air
DamperCtrl
HRU ctrl
HRU defrost
Heat recovery efficiency (%) from the formula:
Supply air flow volume, calculated value, see p. 25
Exhaust air flow volume, calculated value, see p. 25
Control signal from controller to dampers
Control signal from controller to HRU
Control signal from controller to HRU when HRU defrost is
activated (Frost prevention)
[Supply temp after HRU] - [Outdoor temp]
[Exhaust temp] - [Outdoor temp]
0...100%
0...100%
0...100%
m3/h
m3/h
0... 100%
Heat. ctrl
Cool. ctrl
AHU output
SF control
EF control
AHU R time
Alarm stop
0...100%
0...100%
0...100%
0...100%
0...100%
0...9999h
The
control
signal
appears
only
with
a
0…10V
(2…10V)
controlled
actuator
Measurements
Resistance value table:
MEASUREMENTS:
28
55
E
3
Room temp. 21.5/
ExhausTemp 21.5/
SupplyTemp 19.5/
Outdoor temp -15/
Rad.Ret.Wat
/
Rad.SuppWat
/
xh.aft.HRU
/
SuppAfterHru 17/
CO2cont.1000ppm/
50%/
Damper ctrl 45%/
…continuing...
HRU effic.
MEASUREMENTS:
…continuing...
HRU ctrl100%/
45%/
0%/
TF ctrl 0%/
PF ctrl 0%/
SF press. 300Pa/
EF press. 500Pa/
SF flow 2.0 m/s/
EF flow 2.0 m/s/
AHU R time 9990h/
Heat. ctrl
Cool. ctrl.
KEYWORD
:
AHU counter
Run time 9999h
Reset counter
20.02.2003
A free temperature measurement can be
labeled as follows: Move the cursor to the
measurement that has to be relabeled.
Press
. Move the cursor to ”Give new
label”. Press
.
OK
OK
Write the new name on top of the "old name". The first character blinks. You can change the letter/character
by
pressing the
or button to move forward or backwards in the character row. Confirm the character by pressing
, and the next character will blink. If the new name is shorter than the old name, the extra characters are
replaced with an "empty" character. If the new name is longer, the text editor will give the letter that has been fed
last as the new letter. The character that has been fed last is deleted by pressing
. If you press the
button for a while you can delete the new name and the old name remains in effect. When you have written the
name, press
for a while (over 2 sec. ), to exit from the data entry mode and the name that has been written will
come into effect.
+
-
OK
ESC
ESC
OK
Labeling measurements
Kylmä vesi
Nimetön mittaus
Name change
FreeMeasurem
Give new label
Name change
FreeMeasurem
FreeMeasurem
FreeMeasurem
The counter
should always be reset
during maintenance of
the AH
unit.
Hint !
Hint !
AHU counter
1/2 R time1249h
1/1 R time1750h
Reset counter
20.02.2003
100
*
Text on the display:
Measurement information:
Setting range:
One-speed AH unit running time (after the counter is reset)
Running time for AH unit's different outputs (after the counter is
reset)
After reset, the date on the display changes and the reset day
appears.
Controller controlled air handling output
Control of supply fan's AC freq. converter (0…10V = 0…100%)
Control of exhaust fan's AC freq. converter. Combined running time of
AH unit's 1/1 and ½ outputs (after the last time the counter is reset )
to see next display
Press OK
Control signal from controller to heating
Control signal from controller to cooling
The alarm has shut down the AH unit
Text editor's characters in the order in which they appear:
”Empty”. numbers 0…9 letters A…Z and a… z ä ö å
Ouman temperature
sensors (NTC 10k)
°C
-30
-25
-20
-15
-10
-5
0
177 100
130 400
96 890
72 830
55 340
42 340
32 660
40
45
50
55
60
65
70
5 330
4 368
3 602
2 987
2490
2084
1753
1 482
1 259
917
680
511
75
80
90
100
110
5
10
15
20
25
30
35
25 400
19 900
15 710
12 490
10 000
8 064
6531
°C
°C
°C
