Preliminary checks
Unit power supply OFF
Yes / No
1
safe access
2
suitable frame to withstand unit people weight
3
functional clearances
4
air flow: correct return and supply (no bypass, no stratification)
5
condensation drain
6
considered level to be reachable by snow
7
considered main winds
8
lack of chimneys/corrosive atmospheres/pollutants
9
structure integrity
10 fans run freely
11 unit on vibration isolators
12 unit levelled
13 unit input water shut-off valves for cleaning
14 vibration dampeners on hydraulic connections
15 expansion tank (recommended volume = 10% system content)
16 minimum system water content
17 clean system
18 loaded possible glycol so corrosion inhibitor
19 system under pr vented
20 refrigerant circuit visual check
21 earthing connection
22 Electrical connections according to instructions
23 connections performed by Customer: electrical connected, configuration
24 Only modular units (cascade):
Bus connection, addressing of units, addressing of controller, sensor TW to master
25 Temperature probe TW: installed, hydraulically connected
23
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CoMMISSIonInG
