Knurr CoolAdd - 3.5 Control; 4. Storage and transportation

CoolAdd
®
Manual / Bedienungsanleitung
CoolAdd 01.998.350.0 issue a page / Seite 9/59
3.5 Control
The return temperature is controlled manually by thermostatic valve.
In general a return temperature of 22°C / 71°F is recommended as a guide value.
Setting: - lower scale value means „colder“
- higher scale value means „warmer“
The thermostati c valve automatically controls the cooling water flow rate.
Fans:
By design all fans are operating at nominal speed all the time.
Door contact:
The door contact swi tches off the fans automatically, when the door is opened.
The power supply should be shut down before beginning service work on the fans.
4. Storage and transportation
• Store the CoolAdd in its original packaging in a dry place and protected from effects
of the weather. Cover open pall ets with tarpaulins and protect the components from
soiling (e. g. sand, rain, dust, etc.).
• Keep to storage temperatures between –30 °C / -22°F and +40°C / 104°F
• The heat exchanger must be completely deflated (Risk of frost damage)
• After storage for more than 1 year, prior to installation check the fan bearings
( Turn fans manually.)
• CoolAdd can be transported by hand or with appropriate means of transportation.
The CoolAdd weighs, depending on the version, up to 41 kg
• Avoid twi sting the housing or other damage.
• Use suitable aids duri ng installation, e. g. approved scaffolding.
• All packaging has to be removed prior to commissioning CoolAdd.