Hitachi Econofresh, Service Manual

Page: 242 / 408

7.4 Test run check list
MODEL:
SERIAL NO.
COMPRESSOR MFG NO
NAME AND ADDRESS OF
CUSTOMER:
DATE:
1 Does the indoor unit fan turn in the correct direction? __________
2 Has the unit been running for at least twenty (20) minutes? __________
3 Check the temperature of the room:
Inlet:
No 1
DB/WB _____°C
No 2
DB/WB _____°C
No 3
DB/WB _____°C
No 4
DB/WB _____°C
Outlet: DB/WB _____°C DB/WB _____°C DB/WB _____°C DB/WB _____°C
Inlet:
No 5
DB/WB _____°C
No 6
DB/WB _____°C
No 7
DB/WB _____°C
No 8
DB/WB _____°C
Outlet: DB/WB _____°C DB/WB _____°C DB/WB _____°C DB/WB _____°C
4 Check the outside temperature:
Inlet DB/WB _____°C
Outlet DB/WB _____°C
5 Check the temperature of the refrigerant: Operating mode (cooling or heating).
Discharge gas temperature Td = _____°C
Liquid pipe temperature Te = _____°C
6 Check the pressure:
Discharge pressure Pd = _____kg/cm
2
G
Suction pressure Ps = kg/cm
2
G
7 Check the voltage:
Rated voltage _____V — —
Service voltage L1–L2 _____V L1–L3 _____V L2–L3 _____V
Initial voltage _____V — —
Phase imbalance 1-(V/Vm) = — —
8 Check the compressor inlet operating current
Inlet _____kW
Suction pressure _____kW
9 Is the refrigerant charge OK? __________
10 Do the operating control devices work properly? __________
11 Do the safety devices work correctly? __________
12 Has the unit been checked for refrigerant leaks? __________
13 Is the unit clean? __________
14 Are all the panels of the unit fastened securely? __________
15 Are the panels of the cabinet fastened so that they do not make any noise? __________
16 Is the filter clean? __________
17 Is the heat exchanger clean? __________
18 Are the stop valves open? __________
19 Does the water flow freely through the drainage pipe? __________
7 Test run
230
SMGB0063 rev. 1 - 10/2010