Commissioning
CAIR
fricostar
®
FläktGroup DC-2009-0019-GB 2018-01/R9 • Specifications are subject to alteration without notice
55
8.6
Heater assembly
8.6.1 Heater assembly (pumped warm water)
Complete the following commissioning steps:
Requirement:
•
Check supply and return lines for proper connection.
•
Counterflow mechanism and water inlet on air-discharge side.
•
Check shut-off devices and other fixtures for proper installation.
Commissioning:
•
Open provided air vent, if automatic air-venting is not installed.
•
Charge the coil at the lowest point to prevent air cushions and water hammer.
•
Open the sluice valve or valves slightly and wait until water is discharged from the
air vent valve.
•
Open the sluice valve or valves completely.
•
Close the air vent valve; if the levels are different - close air vent valves gradually
until water displaces air and starts to run out.
•
Activate primary and secondary pump, check rotation direction and put the coil into
service for ample time.
•
Initialize control valves, if necessary (refer to the separate manual provided by the
manufacturer). Press and hold the „INIT“ button in the connection box for 2 seconds.
•
Perform a repeated check by opening air vent valves again.
•
Check for leak-free condition.
•
Operate frost protection in a regulated mode to prevent over-conditioning.
8.6.2 Electric heater assembly
•
Activate the heater bank only if the minimum air flow required is provided for its
operation.
•
Check that the fan is activated for a minimum of 3 minutes following the deactivation
of the heater bank.
ELECTRICAL HAZARD AND DANGER OF ROTATING UNIT PARTS WITH
SHARP EDGES! OBSERVE PERSONAL PROTECTION MEASURES
Please consider the safety instructions on page 52.
Hazardous voltage and risk of rotating components!
Please consider the safety instructions on page 52.
