Criteria
Result
Comment
2.07
Is the piping length between indoor
unit from Condensing unit within
specification?
The distance between the farthest
indoor unit and the condensing unit
is100 m or less.
(Follow the Maximum refrigerant charge
quantity at the same time shown in
"5 Leak detection and 6 Vacuum
dehydration"
)
2.08
Location of Condensing unit(s).
(pictures required)
-
3. Electrical/Wiring
3.01
Is earth leakage breaker (ELB) installed?
Fill in whether the ELB is present or not
3.02
Is capacity of earth leakage breaker (ELB)
appropriate?
Rated sensitivity current:30mA
(operation time<0.1 sec)
Rated current:30A
3.03
Are earth wires installed?
Fill in whether the earth wire is present
or not
3.04
Are terminal screws tightened with
torque securely?
M4 1.0 – 1.3 / M5 2.0 – 2.5
M6 4.0 – 5.0 / M8 9.0 – 11.0
M10 18.0 – 23.0 (Unit: N.m)
3.05
Insulation check between power
terminal (400V circuit) and ground
>1MΩ
3.06
Is wiring capacitiy appropriate?
8mm
2
×4
Is the power supply breaker rating,
selection of earth leakage breaker and
wire sizing conform to the local national
standards?
Yes/No
3.07
Isn't there reverse phase, phase loss?
no reverse phase and no phase loss
3.08
[L1-L2/L2-L3/L3-L1/L1-N/L2-N/L3-N
= / / / / / V]
Fill in the voltage
3.09
Is the power supply balanced?
less than 2%
3.10
Is below dip switch setting of control
board or interface board samw as below?
SW4-6 of control board(Oil check
operation mode select):OFF
SW5-7 of control board(Airtight test
mode select):OFF
SW3-4 of interface board(Connecting
Module controller select):ON
Yes/No
4. Design-Refrigration components
4.01
Required room/ cabinet temperature.
Fill in the required temperature
4.02
Design SST (Dew point)
SST usage:-45°C ~ 5°C
4.03
Is the ambient temperature within the
operating range?
ambient temperature usage rage:
-20°C~43°C
4.04
What is the total load unit capacity.
What is the minimum operated load unit
capacity.
Write the total capacity of load units.
Minimum operating capacity should
be over the 50% of the capacity of the
condensing unit.
4.05
Provide cold room or cabinet sizes?
Write the approximate cold room or
cabinet size.
4.06
How many evaporators are connected to
the Condensing unit?
Is the maximum number of indoor
connections within specification?
Condensing unit up to 8 units.
4.07
Evaporator / cabinet details
(i.e.LuVe or Searle etc.)
Write the information of the evaporator/
cabinet detail
4.08
Is the piping flow speed, for each indoor
Evaporator within the oil return
specification?"
Write the minimum flow rate (m/s)
"4-
Installation / Selection of installation
place"
4.09
Provide photos of system configuration
and set up of the refrigeration system?
-
User Guide | Optyma™ iCO2
© Danfoss | Climate Solutions | 2023.01 | LCA012A030
BC408445719305en-000101 | 33
