Iom CWAR 01-N-3ALL Manuel D'installation Et De Maintenance page 27

14.2.1. DEMAND FOR COOLING
1. With the MODE key on the RCL control module, select COOL mode
minimum temperature with the UP and DOWN arrows. The ambient temperature should be within
the operating limits (Refer to "Operating limits"). In the same way, during the pre-commissioning
checks, the exchanger pump(s) water loop inlet temperature should be within the limits
corresponding to each operating mode (Refer to "Operating limits").
Reminder: if one of these factors is situated at its minimum or maximum level, the other should be
situated at a normal level in order to ensure the unit's correct and normal operation.
2. Ensure that the thermostat is connected properly and set the set temperature below the ambient
temperature of the zone to be cooled. After 3 minutes, the compressor starts operating.
3. When the appliance has been operating for a few minutes, check the presence of cold air at the
blowing grille.
4. When the appliance has been operating for a few minutes, check the temperature of the unit's outlet
water. Generally, this should be around 5°C above the unit's water loop inlet temperature. A variance
lower than 3.5°C indicates that the water flow is too high, whilst a variance higher than 8°C indicates
that the water flow is too low.
5. Adjust the isolation/balancing valve on the outlet water pipe to obtain the appliance's nominal water
flow (Refer to the Maker's Plate)
6. Check that the condensates drainage system is working properly and check that a siphon is included
in the drainage line.
7. Check for the absence of vibrations and water leaks.
8. When all the above tests have been completed, adjust the system to maintain the desired comfort level.
14.2.2. DEMAND FOR HEATING
1. With the MODE key on the RCL control modules, select HEAT mode
temperature with the UP and DOWN arrows. The ambient temperature should be within the
operating limits (Refer to "Operating limits"). In the same way, during the pre-commissioning
checks the exchanger pump(s) water loop inlet temperature should be within the limits
corresponding to each operating mode (Refer to "Operating limits").
Reminder: if one of these factors is situated at its minimum or maximum level, the other should be
situated at a normal level in order to ensure the unit's correct and normal operation.
2. Ensure that the thermostat is connected properly and set the set temperature above the ambient
temperature of the zone to be cooled. After 3 minutes, the compressor starts operating.
3. When the appliance has been operating for a few minutes, check the presence of hot air at the
blowing grille.
4. When the appliance has been operating for a few minutes, check the temperature of the unit's outlet
water. Generally, this should be around 3°C below the unit's water loop inlet temperature. A variance
lower than 2°C indicates that the water flow is too high, whilst a variance higher than 6°C indicates
that the water flow is too low.
5. Adjust the isolation/balancing valve on the outlet water pipe to obtain the appliance's nominal water
flow (Refer to the Maker's Plate)
6. Check that the condensates drainage system is working properly and check that a siphon is included
in the drainage line.
7. Check for the absence of vibrations and water leaks.
8. When all the above tests have been completed, adjust the system to maintain the desired comfort level.
Note: If the unit does not operate, perform a fault diagnosis (Refer to "Maintenance and servicing"). If the fault
analysis does not enable the cause of the problem(s) to be determined or if the unit still does not operate, contact
a qualified after-sales technician to obtain a correct diagnosis and to repair the equipment.
25
and then set the
and then set the maximum