Refrigeration Circuit - Trane CCEB Installation Operation & Maintenance

nobody is in the AHU.
-
- all protective devices are working, (optional safety devices such as door guard and belt guard
mounted again) and doors equipped with door locks are locked and the keys are removed – re-
fer to chapter 5.2 (Doors).
Storage of potential energy in gases and fluids
All heat exchangers can be operating up to a maximum pressure of 15 bar. If the
media is under higher pressures, the safety and tightness cannot be guaranteed.
Preventing the risk of explosion and fire spread
To prevent the fire spreading, fire dampers shall be installed into the ducts between
the fire compartments.
Prevention of exposure caused by antifreeze agents
Avoid body contact with antifreeze agents, because they may cause burns. Wear
appropriate protective clothing (e.g. gloves, goggles, ...).
In case of fire, avoid the danger zone and meet different safeguards. It is recom-
mended to wear a mouthguard, because of the risk of poisoning by inhaling the
vapors.
Prevention of hazards caused by steam heaters or humidifiers
By hot steam there is a danger of burns. Therefore, make sure that no steam pres-
sure is present and the system is cooled before working on the steam piping.
Avoid any type of ignition source when cleaning the humidifier and the associated
components and circuits by means of descaling agent. With strong descaling
agents, direct sunlight can already cause a fire.
Avoid body contact with descaling agents, as it can cause chemical burns and seri-
ous eye damage. When handling descaling agents, wear appropriate protective
clothing (e.g. gloves, goggles, ...) and ventilate the room well.
Please note the instructions on the unit and subsequent instructions exactly.

2.2.2 Refrigeration circuit

Preventing the risk of exceeding the maximum operating pressures PS
Never exceed the maximum operating pressures PS, which are specified on the
type plate (even not for test purposes). Damage may limit the security and lifetime
of the system. Never operate the refrigeration system with closed discharge line
valve.