Preliminary checks
Unit OFF power supply
6 - START-UP
Yes / No
1
safe access
2 suitable frame to withstand unit weight + people weight
3
functional clearances
4
air flow: correct return and supply (no bypass, no stratification)
5 considered level to be reachable by snow
6 considered main winds: there are deflectors, windbreaks, suitable anchor system
7 lack of chimneys / corrosive atmospheres / pollutants
8
structure integrity
9
fans run freely
10
unit on vibration isolators
11
The unit must be level.
12 there is condensate drainage (only for heat pump units)
13
unit input water filter + shut-off valves for cleaning
14 hydraulic connections as per recommended diagram
15
expansion tank (recommended volume = 10% system content)
16
minimum system water content
17
clean system
18
loaded system + corrosion inhibitor
19
Antifreeze protections: glycol solution + possible heating cable
20
system under pressure + vented
21
refrigerant circuit visual check
22
earthing connection
23
power supply features
24
Customer care connections: electrically connected, configured
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