Rittal SK 3126.1 Serie Instrucciones De Montaje página 11

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11. Display screen and system analysis of electronic control
Alarm no.
System message
HI
Internal temperature of enclosure
too high
Lo
Internal temperature of enclosure
too low
12. Control programming in level 1
Level
Display
Changeable
screen
parameter
1
PS
3
/6
Measured value
5
r6
T
max.
u
Measured value
6
r7
T
min.
u
7
r8
Reset r6 and r7
8
AL
Limit value
min. temperature T
9
AH
Limit value
max. temperature T
10
H5
11
PS
13. Control programming in level 2
Level
Display
Changeable
screen
parameter
1
PS
2
/5
Temperature
conversion °C/°F
4
P1
Temperature
switching
difference setting
Attention! All other parameters in level 2 may only be changed by authorised and trained personnel.
Assembly instructions Rittal air/air heat exchangers
Cause
Cooling capacity too low/unit undersized
Ambient temperature too high
Heat exchanger soiled
Filter mat soiled
Fan defective
Only relevant in conjunction with an enclosure
heater
Min.
Max.
Factory
Explanation
value
value
setting
Unchangeable values
Not relevant
Measured value
Measured value
0
1
Resetting the measured values T
–50
AH
–50
Lower limit value of admissible enclosure internal temperature
i
AL
150
40
Upper limit value of admissible enclosure internal temperature
i
Min.
Max.
Factory
Explanation
value
value
setting
Unchangeable values
0
1
0
Attention! When changing from °C to °F the values set in the factory must be
adjusted accordingly. (E.g. target value 35°C must be changed to 95°F)
0
19
5
The heat exchanger is set in the factory for a switching cycle of 5 K.
This parameter should only be changed after agreement with the manufacturer.
Notes
Remedy
Check cooling capacity
Unit operating limits exceeded
Clean
Clean or exchange
Exchange
max. and T
min.
u
u
GB
11

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