24 WSN-XIN
21-141
M0V940M13-06
7.4 Refrigeration
circuit
1. Check carefully the refrigerating circuit: the presence of oil stains can mean leakage caused by transportation, movements or other).
2. Verify that the refrigerating circuit is in pressure: Using the unit manometers, if present, or service manometers.
3. Make sure that all the service outlets are closed with proper caps; if caps are not present a leak of refrigerant can be possible.
4. Open the valves of the refrigerant circuit, if there are any.
7.5 Water
circuit
1. Before realizing the unit connection make sure that the hydraulic system has been cleaned up and the cleaning water has been drained.
2. Check that the water circuit has been filled and pressurized.
3. Check that the shut-off valves in the circuit are in the “OPEN” position.
4. Check that there isn’t air in the circuit, if required, evacuate it using the air bleed valve placed in the system high points.
When using antifreeze solutions:
•
make sure the glycol percentage is suitable for the type of use envisaged
Weight of glycol (%)
10
20
30
40
Freezing temperature (°C)
-3.9
-8.9
-15.6
-23.4
Safety temperature (°C)
-1
-4
-10
-19
Modify the following parameters:
1
SetPoint Cool
key
Set
Menu SP
Cool
2
Min Setpoint Cool
Keys
Esc + Set
Menu PAr
Menu TR
tr11
tr11<SetPoint Cool
3
Antifreeze alarm setpoint
Keys
Esc + Set
Menu PAr
Menu AL
AL51
4
Pump start setpoint for antifreeze
Keys
Esc + Set
Menu PAr
Menu PI
PI51
5
Antifreeze Heater Set Point
Keys
Esc + Set
Menu PAr
Menu Hi
Hi12
(PI51 = Hi12)>AL51
For example:
AL51=0°C
Hi12=+1°C
PI51=+1°C
7.6 Electric
Circuit
Verify that the unit is connected to the ground plant.
Check the conductors are tightened as: the vibrations caused by handling and transport might cause these to come loose.
Connect the unit by closing the sectioning device, but leave it on OFF.
Controllare i valori di tensione e frequenza di rete, che devono essere entro i limiti:
•
400/3/50 +/-10%
•
230/1/50 +/-10%
Check and adjust the phase balance as necessary: it must be lower than 2%
Example:
Working outside of these limits can cause irreversible damages and voids the warranty.
Содержание WSN-XIN 101
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Страница 13: ...M0V940M13 06 WSN XIN 21 141 13 4 5 GMX Supply grille Accessory Fix the grille with the screws...
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Страница 61: ...M0V940M13 06 WSN XIN 21 141 61 1 Cooling operation with parameter r5 0 2 Heating operation with parameter r5 1...