33 © STULZ USA – all rights reserved 11.8.22
CYBERWALL™ INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Repairing Coil Leaks
A leak in a chilled water cooling system will usually form an obvious puddle of fluid beneath the unit. Visually
trace the leak from the puddle to the area on the unit from which fluid is dripping.
When a leak is detected, drain the remaining CW coolant before attempting repairs. Adjacent piping must be
thoroughly cleaned by removing all paint, dirt and oily film. Use a wire brush, sandcloth or sandpaper and wipe
the area with clean, dry cloths.
For copper-to-copper (piping) repairs use SILFOS Alloy. No flux is required with Silfos Alloy. Silver solder
(Stay Silv #45) and flux are to be used on copper-to-brass or copper-to-steel repairs. Protect nearby parts
from heat damage by wrapping with water-soaked cloths.
When repairs are completed, remove all traces of flux. After any repair, pressurize the system to check for
leaks prior to recharging the system.
Replacing Filters
Each module has five filter racks (ten total in unit) on the return side of the unit. Each rack has three 20 in. x
24 in. x 2 in. (508mm x 610mm x 50mm) "slide-in" filters.
To replace a filter:
1. Pull the old filters from the filter rack.
2. Ensure the directional airflow arrows on the filter point into the unit.
3. Slide new filters into the rack. Start by sliding in first new filter to the bottom of the rack, then slide the
second filter into the top rack and place in middle filter last.
To Next Page
Loading...