44
GB
Pre-commissioning Checklist
Before commissioning the cylinder unit system complete the following table to ensure the necessary checks are carried out.
No System commissioning checklist Notes
1 Installation location Air ow around the unit Outdoor unit Good/Poor
2
Maintenance access Cylinder unit Good/Poor
Outdoor unit Good/Poor
3 Water Quality and System Preparation Water quantity in the primary circuit L
4 Pipework Total pipe length Outdoor to indoor m
5 Height difference Outdoor to indoor m
6 System chemically cleansed and
ushed
Yes/No
7 Insulation type and thickness
8 Electrical wiring Correct cables used
9 Electrical maintenance access Good/Poor
10 Connection of mains power source Outdoor unit electric cable
Type
Size
Indoor unit electric cable
Type
Size
11 Connection of control cable
12 Anti-freeze Refer to product guidelines. (Also see section 4.2 Note.) %
13 Check pre-charge in the expansion vessel(s) Yes/No
14 Pressurise primary heating circuit to 1 bar Yes/No
15 Release air from system Yes/No
Outdoor unit (PACKAGE type) operation checklist
16 Outdoor unit details Model No. Serial No.
17
Power source (V) 1ø L - N
3ø L1 - L2 L2 - L3 L3 - L1
18
Excessive vibration/noise Compressor Yes/No
Fan Yes/No
19 Unit mounted on anti-vibration pads (Tico Pads) Yes/No
20 Provision made for condensate removal Yes/No
For installation in hard water areas, see advice in section 4.2 General.
Notes/Comments:
Commissioning
6
Pre-commissioning exercises- potable/DHW circuit
Initial ll procedure:
Ensure all pipe joints and ttings are tight and secure.
Open the most distant DHW tap/outlet.
Slowly/gradually open the mains water supply to begin lling unit and DHW pipework.
Allow most distant tap to run free and release/purge residual air from installation.
Close tap/outlet to retain fully charged system.
Note:
When an immersion heater is tted, do NOT energise the heater until the DHW tank is full of water. Also do NOT energise any immersion heater if any
sterilisation chemicals remain in the DHW tank as this will cause premature failure of the heater.
Initial ush procedure:
Energise system to heat-up cylinder unit contents to a temperature of approx. 30 - 40°C.
Flush/drain the water contents to remove any residue/impurities resulting from the installation works. Use the cylinder unit drain cock to safely discharge the warmed water
to drain via a suitable hose.
On completion, close drain cock, re-ll system and resume system commissioning.
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