Bosch CS 3000 AWP Installations- Und Bedienungsanleitung Seite 73

Fig. 109 Do not step on the surface of the appliance
1 Sign of corrosion
2 Panel fixing
3 Fan fixing
4 Coil cleaning
5 Water filter cleaning
6 Water: quality, pH, glycol concentration
7 Check exchanger efficiency
8 Circulation Pump
Check of the fixing an the insulation of the
9
power lead
10 Earth cable check
11 Electric panel cleaning
12 Power remote controls status
13 Clamp closure, cable isolation integrity
Voltage and phase unbalancing (no load and on-
14
load)
15 Absorptions of the single electrical loads
16 Compressor casing heaters test
17 Checking for leaks *
CS3000 AWP – 6721852570 (2022/11)
18 Cooling circuit work parameter detection
19
Protective device test: pressure switches,
20
Control system test; set point, climatic
21 compensations, capacity stepping, air flow-rate
22
thermometers, probes, pressure gauges, etc.
Table 53 Intervention frequency (months)
* Refer to the local regulation. Companies and technicians performing
installation, maintenance/repair, leak control and recovery operations
must be certified as set out by the local regulations.
0010045027-001
Standby mode
If foreseen a long period of inactivity; turn off the power, in order to
prevent the risk of freezing (use glycol or empty the system). Also
disconnect the voltage to avoid electric risks or damages following
lightning.
With lower temperatures keep heaters turned on in the electrical panel
(option).
It is recommended to have a qualified technician start the system after a
period of inactivity, especially after seasonal stops or for seasonal
switch-overs.
When starting, follow the instructions in the "start-up" section.
Schedule technical assistance in advance to avoid hitches and to
guarantee that the system can be used when required.
System drain
Avoid draining the system periodically because it can generates a
corrosive phenomena. Drain the system only if necessary.
0010045028-001
To drain the system, follow the steps:
▶ Empty the system;
▶ Empty the exchanger, use all shut-off valves and grub screws;
6 12
▶ Blow the exchanger with compressed air;
x
▶ Dry the exchanger with hot air; for greater safety, fill the exchanger
x
with glycol solution;
▶ Protect the exchanger from air;
x
▶ Take the drain caps off the pumps;
x
▶ Be sure that no water is inside the pipes due to frost damages.
x
Any anti-freeze liquid contained in the system should not be discharged
x
freely as it is a pollutant. It must be collected and reused.
x
It is recommended to have a qualified technician start the system
x
after a period of inactivity, especially after seasonal stop or for seasonal
x
switch-overs.
Consider to wash the system before start-up.
x
When starting, follow the instructions in the "start-up" section.
x
Schedule technical assistance in advance to avoid hitches and to
x
guarantee that the system can be used when required.
x
x
x
x
*
Safety valve *
thermostats, flow switches, etc.
variations
Control device test: alarm signalling,
Maintenance
6 12
x
*
x
x
x
73