8
Sodium Hypochlorite being highly alkaline may lead to scale formation on its dose injector and
this may require acid cleaning on a frequent basis.
On the peristaltic dose pumps, the squeeze tubes and roller block should be checked at least
annually and should be replaced every 12-24 months.
More regular maintenance may be required for the larger 3.0 l/hr pumps, due to increased
pumping rates.
Chemical suction and discharge tubes should be inspected monthly and replaced as necessary
Maintenance schedule
1 month
3 months 6 months 12 months
Clean and Calibrate FCT Probe
√
Verify Flow ON/OFF
√
Clean and Calibrate FAC Probe
√
Clean pH/ORP Probe
√
Verify / Calibrate ORP
√
Test Outputs
√
Test Pumps/Solenoid Operation
√
Calibrate pH Probe
√
Check/Clean Injectors
√
Inspect Suction/Discharge Tubing
√
Check/Clean Solenoids
√
Peri. Pump - AP Service Kit
√
Peri. Pump - AP Overhaul Kit
√
Electrical Wiring
Refer to AS/NZS 3000 WIRING RULES when installing electrical equipment in and around water
areas.
The hazardous voltage area of this controller is under the protection cover (see Pictures 1 and 2).
Only Safety Extra Low Voltage (SELV) is supplied to the accessible circuit boards inside the
enclosure. Sensors may be maintained while the controller is powered.
CAUTION
:
Only a certified electrician or Aquarius Approved Service Technician may remove the
protection cover to access the hazardous voltage area. It is required to disconnect the controller
from the supply before removing the cover or performing any electrical work, including unplugging
and/or replacing SELV circuit boards such as the Motherboard or Probeboard.
Fuses are easily accessible:
Equipment fuse F1: Output fuse: 5A/250VAC 20 x 5mm
Relay fuse F2: - Only if additional relay for output 8 is installed.
Control fuse F3: 0.125A/250VAC Time-delay 20 x 5mm
Содержание ULTIMA
Страница 1: ...1 Instruction Manual v 1 1 Cooling Tower Controllers ...
Страница 27: ...27 ATTACHMENT Typical Installation Diagrams ...
Страница 28: ...28 ...